Godeps: Add coreos-cloudinit and coreos yaml to Godeps

* Add github.com/coreos/coreos-cloudinit to Godeps
* Add github.com/coreos/yaml to Godeps

Godeps/Godeps.json

@@ -5,6 +5,11 @@
 		"./..."
 	],
 	"Deps": [
+		{
+			"ImportPath": "github.com/coreos/coreos-cloudinit/config",
+			"Comment": "v1.8.1-2-g6e1a0f7",
+			"Rev": "6e1a0f7ca8d16ceac0f79d6c6693b2da4624512e"
+		},
 		{
 			"ImportPath": "github.com/coreos/go-systemd/journal",
 			"Comment": "v4-8-gf164f43",
@@ -33,6 +38,10 @@
 			"ImportPath": "github.com/coreos/pkg/flagutil",
 			"Rev": "2c77715c4df99b5420ffcae14ead08f52104065d"
 		},
+		{
+			"ImportPath": "github.com/coreos/yaml",
+			"Rev": "6b16a5714269b2f70720a45406b1babd947a17ef"
+		},
 		{
 			"ImportPath": "github.com/stretchr/testify/assert",
 			"Comment": "v1.0-71-g0d5a14c",

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/config.go

@@ -0,0 +1,154 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"fmt"
+	"reflect"
+	"regexp"
+	"strings"
+	"unicode"
+
+	"github.com/coreos/yaml"
+)
+
+// CloudConfig encapsulates the entire cloud-config configuration file and maps
+// directly to YAML. Fields that cannot be set in the cloud-config (fields
+// used for internal use) have the YAML tag '-' so that they aren't marshalled.
+type CloudConfig struct {
+	SSHAuthorizedKeys []string `yaml:"ssh_authorized_keys"`
+	CoreOS            CoreOS   `yaml:"coreos"`
+	WriteFiles        []File   `yaml:"write_files"`
+	Hostname          string   `yaml:"hostname"`
+	Users             []User   `yaml:"users"`
+	ManageEtcHosts    EtcHosts `yaml:"manage_etc_hosts"`
+}
+
+type CoreOS struct {
+	Etcd      Etcd      `yaml:"etcd"`
+	Etcd2     Etcd2     `yaml:"etcd2"`
+	Flannel   Flannel   `yaml:"flannel"`
+	Fleet     Fleet     `yaml:"fleet"`
+	Locksmith Locksmith `yaml:"locksmith"`
+	OEM       OEM       `yaml:"oem"`
+	Update    Update    `yaml:"update"`
+	Units     []Unit    `yaml:"units"`
+}
+
+func IsCloudConfig(userdata string) bool {
+	header := strings.SplitN(userdata, "\n", 2)[0]
+
+	// Trim trailing whitespaces
+	header = strings.TrimRightFunc(header, unicode.IsSpace)
+
+	return (header == "#cloud-config")
+}
+
+// NewCloudConfig instantiates a new CloudConfig from the given contents (a
+// string of YAML), returning any error encountered. It will ignore unknown
+// fields but log encountering them.
+func NewCloudConfig(contents string) (*CloudConfig, error) {
+	yaml.UnmarshalMappingKeyTransform = func(nameIn string) (nameOut string) {
+		return strings.Replace(nameIn, "-", "_", -1)
+	}
+	var cfg CloudConfig
+	err := yaml.Unmarshal([]byte(contents), &cfg)
+	return &cfg, err
+}
+
+func (cc CloudConfig) String() string {
+	bytes, err := yaml.Marshal(cc)
+	if err != nil {
+		return ""
+	}
+
+	stringified := string(bytes)
+	stringified = fmt.Sprintf("#cloud-config\n%s", stringified)
+
+	return stringified
+}
+
+// IsZero returns whether or not the parameter is the zero value for its type.
+// If the parameter is a struct, only the exported fields are considered.
+func IsZero(c interface{}) bool {
+	return isZero(reflect.ValueOf(c))
+}
+
+type ErrorValid struct {
+	Value string
+	Valid string
+	Field string
+}
+
+func (e ErrorValid) Error() string {
+	return fmt.Sprintf("invalid value %q for option %q (valid options: %q)", e.Value, e.Field, e.Valid)
+}
+
+// AssertStructValid checks the fields in the structure and makes sure that
+// they contain valid values as specified by the 'valid' flag. Empty fields are
+// implicitly valid.
+func AssertStructValid(c interface{}) error {
+	ct := reflect.TypeOf(c)
+	cv := reflect.ValueOf(c)
+	for i := 0; i < ct.NumField(); i++ {
+		ft := ct.Field(i)
+		if !isFieldExported(ft) {
+			continue
+		}
+
+		if err := AssertValid(cv.Field(i), ft.Tag.Get("valid")); err != nil {
+			err.Field = ft.Name
+			return err
+		}
+	}
+	return nil
+}
+
+// AssertValid checks to make sure that the given value is in the list of
+// valid values. Zero values are implicitly valid.
+func AssertValid(value reflect.Value, valid string) *ErrorValid {
+	if valid == "" || isZero(value) {
+		return nil
+	}
+
+	vs := fmt.Sprintf("%v", value.Interface())
+	if m, _ := regexp.MatchString(valid, vs); m {
+		return nil
+	}
+
+	return &ErrorValid{
+		Value: vs,
+		Valid: valid,
+	}
+}
+
+func isZero(v reflect.Value) bool {
+	switch v.Kind() {
+	case reflect.Struct:
+		vt := v.Type()
+		for i := 0; i < v.NumField(); i++ {
+			if isFieldExported(vt.Field(i)) && !isZero(v.Field(i)) {
+				return false
+			}
+		}
+		return true
+	default:
+		return v.Interface() == reflect.Zero(v.Type()).Interface()
+	}
+}
+
+func isFieldExported(f reflect.StructField) bool {
+	return f.PkgPath == ""
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/config_test.go

@@ -0,0 +1,502 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"reflect"
+	"regexp"
+	"strings"
+	"testing"
+)
+
+func TestNewCloudConfig(t *testing.T) {
+	tests := []struct {
+		contents string
+
+		config CloudConfig
+	}{
+		{},
+		{
+			contents: "#cloud-config\nwrite_files:\n  - path: underscore",
+			config:   CloudConfig{WriteFiles: []File{File{Path: "underscore"}}},
+		},
+		{
+			contents: "#cloud-config\nwrite-files:\n  - path: hyphen",
+			config:   CloudConfig{WriteFiles: []File{File{Path: "hyphen"}}},
+		},
+		{
+			contents: "#cloud-config\ncoreos:\n  update:\n    reboot-strategy: off",
+			config:   CloudConfig{CoreOS: CoreOS{Update: Update{RebootStrategy: "off"}}},
+		},
+		{
+			contents: "#cloud-config\ncoreos:\n  update:\n    reboot-strategy: false",
+			config:   CloudConfig{CoreOS: CoreOS{Update: Update{RebootStrategy: "false"}}},
+		},
+		{
+			contents: "#cloud-config\nwrite_files:\n  - permissions: 0744",
+			config:   CloudConfig{WriteFiles: []File{File{RawFilePermissions: "0744"}}},
+		},
+		{
+			contents: "#cloud-config\nwrite_files:\n  - permissions: 744",
+			config:   CloudConfig{WriteFiles: []File{File{RawFilePermissions: "744"}}},
+		},
+		{
+			contents: "#cloud-config\nwrite_files:\n  - permissions: '0744'",
+			config:   CloudConfig{WriteFiles: []File{File{RawFilePermissions: "0744"}}},
+		},
+		{
+			contents: "#cloud-config\nwrite_files:\n  - permissions: '744'",
+			config:   CloudConfig{WriteFiles: []File{File{RawFilePermissions: "744"}}},
+		},
+	}
+
+	for i, tt := range tests {
+		config, err := NewCloudConfig(tt.contents)
+		if err != nil {
+			t.Errorf("bad error (test case #%d): want %v, got %s", i, nil, err)
+		}
+		if !reflect.DeepEqual(&tt.config, config) {
+			t.Errorf("bad config (test case #%d): want %#v, got %#v", i, tt.config, config)
+		}
+	}
+}
+
+func TestIsZero(t *testing.T) {
+	tests := []struct {
+		c interface{}
+
+		empty bool
+	}{
+		{struct{}{}, true},
+		{struct{ a, b string }{}, true},
+		{struct{ A, b string }{}, true},
+		{struct{ A, B string }{}, true},
+		{struct{ A string }{A: "hello"}, false},
+		{struct{ A int }{}, true},
+		{struct{ A int }{A: 1}, false},
+	}
+
+	for _, tt := range tests {
+		if empty := IsZero(tt.c); tt.empty != empty {
+			t.Errorf("bad result (%q): want %t, got %t", tt.c, tt.empty, empty)
+		}
+	}
+}
+
+func TestAssertStructValid(t *testing.T) {
+	tests := []struct {
+		c interface{}
+
+		err error
+	}{
+		{struct{}{}, nil},
+		{struct {
+			A, b string `valid:"^1|2$"`
+		}{}, nil},
+		{struct {
+			A, b string `valid:"^1|2$"`
+		}{A: "1", b: "2"}, nil},
+		{struct {
+			A, b string `valid:"^1|2$"`
+		}{A: "1", b: "hello"}, nil},
+		{struct {
+			A, b string `valid:"^1|2$"`
+		}{A: "hello", b: "2"}, &ErrorValid{Value: "hello", Field: "A", Valid: "^1|2$"}},
+		{struct {
+			A, b int `valid:"^1|2$"`
+		}{}, nil},
+		{struct {
+			A, b int `valid:"^1|2$"`
+		}{A: 1, b: 2}, nil},
+		{struct {
+			A, b int `valid:"^1|2$"`
+		}{A: 1, b: 9}, nil},
+		{struct {
+			A, b int `valid:"^1|2$"`
+		}{A: 9, b: 2}, &ErrorValid{Value: "9", Field: "A", Valid: "^1|2$"}},
+	}
+
+	for _, tt := range tests {
+		if err := AssertStructValid(tt.c); !reflect.DeepEqual(tt.err, err) {
+			t.Errorf("bad result (%q): want %q, got %q", tt.c, tt.err, err)
+		}
+	}
+}
+
+func TestConfigCompile(t *testing.T) {
+	tests := []interface{}{
+		Etcd{},
+		File{},
+		Flannel{},
+		Fleet{},
+		Locksmith{},
+		OEM{},
+		Unit{},
+		Update{},
+	}
+
+	for _, tt := range tests {
+		ttt := reflect.TypeOf(tt)
+		for i := 0; i < ttt.NumField(); i++ {
+			ft := ttt.Field(i)
+			if !isFieldExported(ft) {
+				continue
+			}
+
+			if _, err := regexp.Compile(ft.Tag.Get("valid")); err != nil {
+				t.Errorf("bad regexp(%s.%s): want %v, got %s", ttt.Name(), ft.Name, nil, err)
+			}
+		}
+	}
+}
+
+func TestCloudConfigUnknownKeys(t *testing.T) {
+	contents := `
+coreos: 
+  etcd:
+    discovery: "https://discovery.etcd.io/827c73219eeb2fa5530027c37bf18877"
+  coreos_unknown:
+    foo: "bar"
+section_unknown:
+  dunno:
+    something
+bare_unknown:
+  bar
+write_files:
+  - content: fun
+    path: /var/party
+    file_unknown: nofun
+users:
+  - name: fry
+    passwd: somehash
+    user_unknown: philip
+hostname:
+  foo
+`
+	cfg, err := NewCloudConfig(contents)
+	if err != nil {
+		t.Fatalf("error instantiating CloudConfig with unknown keys: %v", err)
+	}
+	if cfg.Hostname != "foo" {
+		t.Fatalf("hostname not correctly set when invalid keys are present")
+	}
+	if cfg.CoreOS.Etcd.Discovery != "https://discovery.etcd.io/827c73219eeb2fa5530027c37bf18877" {
+		t.Fatalf("etcd section not correctly set when invalid keys are present")
+	}
+	if len(cfg.WriteFiles) < 1 || cfg.WriteFiles[0].Content != "fun" || cfg.WriteFiles[0].Path != "/var/party" {
+		t.Fatalf("write_files section not correctly set when invalid keys are present")
+	}
+	if len(cfg.Users) < 1 || cfg.Users[0].Name != "fry" || cfg.Users[0].PasswordHash != "somehash" {
+		t.Fatalf("users section not correctly set when invalid keys are present")
+	}
+}
+
+// Assert that the parsing of a cloud config file "generally works"
+func TestCloudConfigEmpty(t *testing.T) {
+	cfg, err := NewCloudConfig("")
+	if err != nil {
+		t.Fatalf("Encountered unexpected error :%v", err)
+	}
+
+	keys := cfg.SSHAuthorizedKeys
+	if len(keys) != 0 {
+		t.Error("Parsed incorrect number of SSH keys")
+	}
+
+	if len(cfg.WriteFiles) != 0 {
+		t.Error("Expected zero WriteFiles")
+	}
+
+	if cfg.Hostname != "" {
+		t.Errorf("Expected hostname to be empty, got '%s'", cfg.Hostname)
+	}
+}
+
+// Assert that the parsing of a cloud config file "generally works"
+func TestCloudConfig(t *testing.T) {
+	contents := `
+coreos: 
+  etcd:
+    discovery: "https://discovery.etcd.io/827c73219eeb2fa5530027c37bf18877"
+  update:
+    reboot_strategy: reboot
+  units:
+    - name: 50-eth0.network
+      runtime: yes
+      content: '[Match]
+ 
+    Name=eth47
+ 
+ 
+    [Network]
+ 
+    Address=10.209.171.177/19
+ 
+'
+  oem:
+    id: rackspace
+    name: Rackspace Cloud Servers
+    version_id: 168.0.0
+    home_url: https://www.rackspace.com/cloud/servers/
+    bug_report_url: https://github.com/coreos/coreos-overlay
+ssh_authorized_keys:
+  - foobar
+  - foobaz
+write_files:
+  - content: |
+      penny
+      elroy
+    path: /etc/dogepack.conf
+    permissions: '0644'
+    owner: root:dogepack
+hostname: trontastic
+`
+	cfg, err := NewCloudConfig(contents)
+	if err != nil {
+		t.Fatalf("Encountered unexpected error :%v", err)
+	}
+
+	keys := cfg.SSHAuthorizedKeys
+	if len(keys) != 2 {
+		t.Error("Parsed incorrect number of SSH keys")
+	} else if keys[0] != "foobar" {
+		t.Error("Expected first SSH key to be 'foobar'")
+	} else if keys[1] != "foobaz" {
+		t.Error("Expected first SSH key to be 'foobaz'")
+	}
+
+	if len(cfg.WriteFiles) != 1 {
+		t.Error("Failed to parse correct number of write_files")
+	} else {
+		wf := cfg.WriteFiles[0]
+		if wf.Content != "penny\nelroy\n" {
+			t.Errorf("WriteFile has incorrect contents '%s'", wf.Content)
+		}
+		if wf.Encoding != "" {
+			t.Errorf("WriteFile has incorrect encoding %s", wf.Encoding)
+		}
+		if wf.RawFilePermissions != "0644" {
+			t.Errorf("WriteFile has incorrect permissions %s", wf.RawFilePermissions)
+		}
+		if wf.Path != "/etc/dogepack.conf" {
+			t.Errorf("WriteFile has incorrect path %s", wf.Path)
+		}
+		if wf.Owner != "root:dogepack" {
+			t.Errorf("WriteFile has incorrect owner %s", wf.Owner)
+		}
+	}
+
+	if len(cfg.CoreOS.Units) != 1 {
+		t.Error("Failed to parse correct number of units")
+	} else {
+		u := cfg.CoreOS.Units[0]
+		expect := `[Match]
+Name=eth47
+
+[Network]
+Address=10.209.171.177/19
+`
+		if u.Content != expect {
+			t.Errorf("Unit has incorrect contents '%s'.\nExpected '%s'.", u.Content, expect)
+		}
+		if u.Runtime != true {
+			t.Errorf("Unit has incorrect runtime value")
+		}
+		if u.Name != "50-eth0.network" {
+			t.Errorf("Unit has incorrect name %s", u.Name)
+		}
+	}
+
+	if cfg.CoreOS.OEM.ID != "rackspace" {
+		t.Errorf("Failed parsing coreos.oem. Expected ID 'rackspace', got %q.", cfg.CoreOS.OEM.ID)
+	}
+
+	if cfg.Hostname != "trontastic" {
+		t.Errorf("Failed to parse hostname")
+	}
+	if cfg.CoreOS.Update.RebootStrategy != "reboot" {
+		t.Errorf("Failed to parse locksmith strategy")
+	}
+}
+
+// Assert that our interface conversion doesn't panic
+func TestCloudConfigKeysNotList(t *testing.T) {
+	contents := `
+ssh_authorized_keys:
+  - foo: bar
+`
+	cfg, err := NewCloudConfig(contents)
+	if err != nil {
+		t.Fatalf("Encountered unexpected error: %v", err)
+	}
+
+	keys := cfg.SSHAuthorizedKeys
+	if len(keys) != 0 {
+		t.Error("Parsed incorrect number of SSH keys")
+	}
+}
+
+func TestCloudConfigSerializationHeader(t *testing.T) {
+	cfg, _ := NewCloudConfig("")
+	contents := cfg.String()
+	header := strings.SplitN(contents, "\n", 2)[0]
+	if header != "#cloud-config" {
+		t.Fatalf("Serialized config did not have expected header")
+	}
+}
+
+func TestCloudConfigUsers(t *testing.T) {
+	contents := `
+users:
+  - name: elroy
+    passwd: somehash
+    ssh_authorized_keys:
+      - somekey
+    gecos: arbitrary comment
+    homedir: /home/place
+    no_create_home: yes
+    primary_group: things
+    groups:
+      - ping
+      - pong
+    no_user_group: true
+    system: y
+    no_log_init: True
+    shell: /bin/sh
+`
+	cfg, err := NewCloudConfig(contents)
+	if err != nil {
+		t.Fatalf("Encountered unexpected error: %v", err)
+	}
+
+	if len(cfg.Users) != 1 {
+		t.Fatalf("Parsed %d users, expected 1", len(cfg.Users))
+	}
+
+	user := cfg.Users[0]
+
+	if user.Name != "elroy" {
+		t.Errorf("User name is %q, expected 'elroy'", user.Name)
+	}
+
+	if user.PasswordHash != "somehash" {
+		t.Errorf("User passwd is %q, expected 'somehash'", user.PasswordHash)
+	}
+
+	if keys := user.SSHAuthorizedKeys; len(keys) != 1 {
+		t.Errorf("Parsed %d ssh keys, expected 1", len(keys))
+	} else {
+		key := user.SSHAuthorizedKeys[0]
+		if key != "somekey" {
+			t.Errorf("User SSH key is %q, expected 'somekey'", key)
+		}
+	}
+
+	if user.GECOS != "arbitrary comment" {
+		t.Errorf("Failed to parse gecos field, got %q", user.GECOS)
+	}
+
+	if user.Homedir != "/home/place" {
+		t.Errorf("Failed to parse homedir field, got %q", user.Homedir)
+	}
+
+	if !user.NoCreateHome {
+		t.Errorf("Failed to parse no_create_home field")
+	}
+
+	if user.PrimaryGroup != "things" {
+		t.Errorf("Failed to parse primary_group field, got %q", user.PrimaryGroup)
+	}
+
+	if len(user.Groups) != 2 {
+		t.Errorf("Failed to parse 2 goups, got %d", len(user.Groups))
+	} else {
+		if user.Groups[0] != "ping" {
+			t.Errorf("First group was %q, not expected value 'ping'", user.Groups[0])
+		}
+		if user.Groups[1] != "pong" {
+			t.Errorf("First group was %q, not expected value 'pong'", user.Groups[1])
+		}
+	}
+
+	if !user.NoUserGroup {
+		t.Errorf("Failed to parse no_user_group field")
+	}
+
+	if !user.System {
+		t.Errorf("Failed to parse system field")
+	}
+
+	if !user.NoLogInit {
+		t.Errorf("Failed to parse no_log_init field")
+	}
+
+	if user.Shell != "/bin/sh" {
+		t.Errorf("Failed to parse shell field, got %q", user.Shell)
+	}
+}
+
+func TestCloudConfigUsersGithubUser(t *testing.T) {
+
+	contents := `
+users:
+  - name: elroy
+    coreos_ssh_import_github: bcwaldon
+`
+	cfg, err := NewCloudConfig(contents)
+	if err != nil {
+		t.Fatalf("Encountered unexpected error: %v", err)
+	}
+
+	if len(cfg.Users) != 1 {
+		t.Fatalf("Parsed %d users, expected 1", len(cfg.Users))
+	}
+
+	user := cfg.Users[0]
+
+	if user.Name != "elroy" {
+		t.Errorf("User name is %q, expected 'elroy'", user.Name)
+	}
+
+	if user.SSHImportGithubUser != "bcwaldon" {
+		t.Errorf("github user is %q, expected 'bcwaldon'", user.SSHImportGithubUser)
+	}
+}
+
+func TestCloudConfigUsersSSHImportURL(t *testing.T) {
+	contents := `
+users:
+  - name: elroy
+    coreos_ssh_import_url: https://token:x-auth-token@github.enterprise.com/api/v3/polvi/keys
+`
+	cfg, err := NewCloudConfig(contents)
+	if err != nil {
+		t.Fatalf("Encountered unexpected error: %v", err)
+	}
+
+	if len(cfg.Users) != 1 {
+		t.Fatalf("Parsed %d users, expected 1", len(cfg.Users))
+	}
+
+	user := cfg.Users[0]
+
+	if user.Name != "elroy" {
+		t.Errorf("User name is %q, expected 'elroy'", user.Name)
+	}
+
+	if user.SSHImportURL != "https://token:x-auth-token@github.enterprise.com/api/v3/polvi/keys" {
+		t.Errorf("ssh import url is %q, expected 'https://token:x-auth-token@github.enterprise.com/api/v3/polvi/keys'", user.SSHImportURL)
+	}
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/decode.go

@@ -0,0 +1,56 @@
+package config
+
+import (
+	"bytes"
+	"compress/gzip"
+	"encoding/base64"
+	"fmt"
+)
+
+func DecodeBase64Content(content string) ([]byte, error) {
+	output, err := base64.StdEncoding.DecodeString(content)
+
+	if err != nil {
+		return nil, fmt.Errorf("Unable to decode base64: %q", err)
+	}
+
+	return output, nil
+}
+
+func DecodeGzipContent(content string) ([]byte, error) {
+	gzr, err := gzip.NewReader(bytes.NewReader([]byte(content)))
+
+	if err != nil {
+		return nil, fmt.Errorf("Unable to decode gzip: %q", err)
+	}
+	defer gzr.Close()
+
+	buf := new(bytes.Buffer)
+	buf.ReadFrom(gzr)
+
+	return buf.Bytes(), nil
+}
+
+func DecodeContent(content string, encoding string) ([]byte, error) {
+	switch encoding {
+	case "":
+		return []byte(content), nil
+
+	case "b64", "base64":
+		return DecodeBase64Content(content)
+
+	case "gz", "gzip":
+		return DecodeGzipContent(content)
+
+	case "gz+base64", "gzip+base64", "gz+b64", "gzip+b64":
+		gz, err := DecodeBase64Content(content)
+
+		if err != nil {
+			return nil, err
+		}
+
+		return DecodeGzipContent(string(gz))
+	}
+
+	return nil, fmt.Errorf("Unsupported encoding %q", encoding)
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/etc_hosts.go

@@ -0,0 +1,17 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type EtcHosts string

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/etcd.go

@@ -0,0 +1,67 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type Etcd struct {
+	Addr                     string  `yaml:"addr"                          env:"ETCD_ADDR"`
+	AdvertiseClientURLs      string  `yaml:"advertise_client_urls"         env:"ETCD_ADVERTISE_CLIENT_URLS"       deprecated:"etcd2 options no longer work for etcd"`
+	BindAddr                 string  `yaml:"bind_addr"                     env:"ETCD_BIND_ADDR"`
+	CAFile                   string  `yaml:"ca_file"                       env:"ETCD_CA_FILE"`
+	CertFile                 string  `yaml:"cert_file"                     env:"ETCD_CERT_FILE"`
+	ClusterActiveSize        int     `yaml:"cluster_active_size"           env:"ETCD_CLUSTER_ACTIVE_SIZE"`
+	ClusterRemoveDelay       float64 `yaml:"cluster_remove_delay"          env:"ETCD_CLUSTER_REMOVE_DELAY"`
+	ClusterSyncInterval      float64 `yaml:"cluster_sync_interval"         env:"ETCD_CLUSTER_SYNC_INTERVAL"`
+	CorsOrigins              string  `yaml:"cors"                          env:"ETCD_CORS"`
+	DataDir                  string  `yaml:"data_dir"                      env:"ETCD_DATA_DIR"`
+	Discovery                string  `yaml:"discovery"                     env:"ETCD_DISCOVERY"`
+	DiscoveryFallback        string  `yaml:"discovery_fallback"            env:"ETCD_DISCOVERY_FALLBACK"          deprecated:"etcd2 options no longer work for etcd"`
+	DiscoverySRV             string  `yaml:"discovery_srv"                 env:"ETCD_DISCOVERY_SRV"               deprecated:"etcd2 options no longer work for etcd"`
+	DiscoveryProxy           string  `yaml:"discovery_proxy"               env:"ETCD_DISCOVERY_PROXY"             deprecated:"etcd2 options no longer work for etcd"`
+	ElectionTimeout          int     `yaml:"election_timeout"              env:"ETCD_ELECTION_TIMEOUT"            deprecated:"etcd2 options no longer work for etcd"`
+	ForceNewCluster          bool    `yaml:"force_new_cluster"             env:"ETCD_FORCE_NEW_CLUSTER"           deprecated:"etcd2 options no longer work for etcd"`
+	GraphiteHost             string  `yaml:"graphite_host"                 env:"ETCD_GRAPHITE_HOST"`
+	HeartbeatInterval        int     `yaml:"heartbeat_interval"            env:"ETCD_HEARTBEAT_INTERVAL"          deprecated:"etcd2 options no longer work for etcd"`
+	HTTPReadTimeout          float64 `yaml:"http_read_timeout"             env:"ETCD_HTTP_READ_TIMEOUT"`
+	HTTPWriteTimeout         float64 `yaml:"http_write_timeout"            env:"ETCD_HTTP_WRITE_TIMEOUT"`
+	InitialAdvertisePeerURLs string  `yaml:"initial_advertise_peer_urls"   env:"ETCD_INITIAL_ADVERTISE_PEER_URLS" deprecated:"etcd2 options no longer work for etcd"`
+	InitialCluster           string  `yaml:"initial_cluster"               env:"ETCD_INITIAL_CLUSTER"             deprecated:"etcd2 options no longer work for etcd"`
+	InitialClusterState      string  `yaml:"initial_cluster_state"         env:"ETCD_INITIAL_CLUSTER_STATE"       deprecated:"etcd2 options no longer work for etcd"`
+	InitialClusterToken      string  `yaml:"initial_cluster_token"         env:"ETCD_INITIAL_CLUSTER_TOKEN"       deprecated:"etcd2 options no longer work for etcd"`
+	KeyFile                  string  `yaml:"key_file"                      env:"ETCD_KEY_FILE"`
+	ListenClientURLs         string  `yaml:"listen_client_urls"            env:"ETCD_LISTEN_CLIENT_URLS"          deprecated:"etcd2 options no longer work for etcd"`
+	ListenPeerURLs           string  `yaml:"listen_peer_urls"              env:"ETCD_LISTEN_PEER_URLS"            deprecated:"etcd2 options no longer work for etcd"`
+	MaxResultBuffer          int     `yaml:"max_result_buffer"             env:"ETCD_MAX_RESULT_BUFFER"`
+	MaxRetryAttempts         int     `yaml:"max_retry_attempts"            env:"ETCD_MAX_RETRY_ATTEMPTS"`
+	MaxSnapshots             int     `yaml:"max_snapshots"                 env:"ETCD_MAX_SNAPSHOTS"               deprecated:"etcd2 options no longer work for etcd"`
+	MaxWALs                  int     `yaml:"max_wals"                      env:"ETCD_MAX_WALS"                    deprecated:"etcd2 options no longer work for etcd"`
+	Name                     string  `yaml:"name"                          env:"ETCD_NAME"`
+	PeerAddr                 string  `yaml:"peer_addr"                     env:"ETCD_PEER_ADDR"`
+	PeerBindAddr             string  `yaml:"peer_bind_addr"                env:"ETCD_PEER_BIND_ADDR"`
+	PeerCAFile               string  `yaml:"peer_ca_file"                  env:"ETCD_PEER_CA_FILE"`
+	PeerCertFile             string  `yaml:"peer_cert_file"                env:"ETCD_PEER_CERT_FILE"`
+	PeerElectionTimeout      int     `yaml:"peer_election_timeout"         env:"ETCD_PEER_ELECTION_TIMEOUT"`
+	PeerHeartbeatInterval    int     `yaml:"peer_heartbeat_interval"       env:"ETCD_PEER_HEARTBEAT_INTERVAL"`
+	PeerKeyFile              string  `yaml:"peer_key_file"                 env:"ETCD_PEER_KEY_FILE"`
+	Peers                    string  `yaml:"peers"                         env:"ETCD_PEERS"`
+	PeersFile                string  `yaml:"peers_file"                    env:"ETCD_PEERS_FILE"`
+	Proxy                    string  `yaml:"proxy"                         env:"ETCD_PROXY"                       deprecated:"etcd2 options no longer work for etcd"`
+	RetryInterval            float64 `yaml:"retry_interval"                env:"ETCD_RETRY_INTERVAL"`
+	Snapshot                 bool    `yaml:"snapshot"                      env:"ETCD_SNAPSHOT"`
+	SnapshotCount            int     `yaml:"snapshot_count"                env:"ETCD_SNAPSHOTCOUNT"`
+	StrTrace                 string  `yaml:"trace"                         env:"ETCD_TRACE"`
+	Verbose                  bool    `yaml:"verbose"                       env:"ETCD_VERBOSE"`
+	VeryVerbose              bool    `yaml:"very_verbose"                  env:"ETCD_VERY_VERBOSE"`
+	VeryVeryVerbose          bool    `yaml:"very_very_verbose"             env:"ETCD_VERY_VERY_VERBOSE"`
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/etcd2.go

@@ -0,0 +1,57 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type Etcd2 struct {
+	AdvertiseClientURLs      string `yaml:"advertise_client_urls"         env:"ETCD_ADVERTISE_CLIENT_URLS"`
+	CAFile                   string `yaml:"ca_file"                       env:"ETCD_CA_FILE"                     deprecated:"ca_file obsoleted by trusted_ca_file and client_cert_auth"`
+	CertFile                 string `yaml:"cert_file"                     env:"ETCD_CERT_FILE"`
+	ClientCertAuth           bool   `yaml:"client_cert_auth"              env:"ETCD_CLIENT_CERT_AUTH"`
+	CorsOrigins              string `yaml:"cors"                          env:"ETCD_CORS"`
+	DataDir                  string `yaml:"data_dir"                      env:"ETCD_DATA_DIR"`
+	Debug                    bool   `yaml:"debug"                         env:"ETCD_DEBUG"`
+	Discovery                string `yaml:"discovery"                     env:"ETCD_DISCOVERY"`
+	DiscoveryFallback        string `yaml:"discovery_fallback"            env:"ETCD_DISCOVERY_FALLBACK"`
+	DiscoverySRV             string `yaml:"discovery_srv"                 env:"ETCD_DISCOVERY_SRV"`
+	DiscoveryProxy           string `yaml:"discovery_proxy"               env:"ETCD_DISCOVERY_PROXY"`
+	ElectionTimeout          int    `yaml:"election_timeout"              env:"ETCD_ELECTION_TIMEOUT"`
+	ForceNewCluster          bool   `yaml:"force_new_cluster"             env:"ETCD_FORCE_NEW_CLUSTER"`
+	HeartbeatInterval        int    `yaml:"heartbeat_interval"            env:"ETCD_HEARTBEAT_INTERVAL"`
+	InitialAdvertisePeerURLs string `yaml:"initial_advertise_peer_urls"   env:"ETCD_INITIAL_ADVERTISE_PEER_URLS"`
+	InitialCluster           string `yaml:"initial_cluster"               env:"ETCD_INITIAL_CLUSTER"`
+	InitialClusterState      string `yaml:"initial_cluster_state"         env:"ETCD_INITIAL_CLUSTER_STATE"`
+	InitialClusterToken      string `yaml:"initial_cluster_token"         env:"ETCD_INITIAL_CLUSTER_TOKEN"`
+	KeyFile                  string `yaml:"key_file"                      env:"ETCD_KEY_FILE"`
+	ListenClientURLs         string `yaml:"listen_client_urls"            env:"ETCD_LISTEN_CLIENT_URLS"`
+	ListenPeerURLs           string `yaml:"listen_peer_urls"              env:"ETCD_LISTEN_PEER_URLS"`
+	LogPackageLevels         string `yaml:"log_package_levels"            env:"ETCD_LOG_PACKAGE_LEVELS"`
+	MaxSnapshots             int    `yaml:"max_snapshots"                 env:"ETCD_MAX_SNAPSHOTS"`
+	MaxWALs                  int    `yaml:"max_wals"                      env:"ETCD_MAX_WALS"`
+	Name                     string `yaml:"name"                          env:"ETCD_NAME"`
+	PeerCAFile               string `yaml:"peer_ca_file"                  env:"ETCD_PEER_CA_FILE"                deprecated:"peer_ca_file obsoleted peer_trusted_ca_file and peer_client_cert_auth"`
+	PeerCertFile             string `yaml:"peer_cert_file"                env:"ETCD_PEER_CERT_FILE"`
+	PeerKeyFile              string `yaml:"peer_key_file"                 env:"ETCD_PEER_KEY_FILE"`
+	PeerClientCertAuth       bool   `yaml:"peer_client_cert_auth"         env:"ETCD_PEER_CLIENT_CERT_AUTH"`
+	PeerTrustedCAFile        string `yaml:"peer_trusted_ca_file"          env:"ETCD_PEER_TRUSTED_CA_FILE"`
+	Proxy                    string `yaml:"proxy"                         env:"ETCD_PROXY"                       valid:"^(on|off|readonly)$"`
+	ProxyDialTimeout         int    `yaml:"proxy_dial_timeout"            env:"ETCD_PROXY_DIAL_TIMEOUT"`
+	ProxyFailureWait         int    `yaml:"proxy_failure_wait"            env:"ETCD_PROXY_FAILURE_WAIT"`
+	ProxyReadTimeout         int    `yaml:"proxy_read_timeout"            env:"ETCD_PROXY_READ_TIMEOUT"`
+	ProxyRefreshInterval     int    `yaml:"proxy_refresh_interval"        env:"ETCD_PROXY_REFRESH_INTERVAL"`
+	ProxyWriteTimeout        int    `yaml:"proxy_write_timeout"           env:"ETCD_PROXY_WRITE_TIMEOUT"`
+	SnapshotCount            int    `yaml:"snapshot_count"                env:"ETCD_SNAPSHOT_COUNT"`
+	TrustedCAFile            string `yaml:"trusted_ca_file"               env:"ETCD_TRUSTED_CA_FILE"`
+	WalDir                   string `yaml:"wal_dir"                       env:"ETCD_WAL_DIR"`
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/file.go

@@ -0,0 +1,23 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type File struct {
+	Encoding           string `yaml:"encoding" valid:"^(base64|b64|gz|gzip|gz\\+base64|gzip\\+base64|gz\\+b64|gzip\\+b64)$"`
+	Content            string `yaml:"content"`
+	Owner              string `yaml:"owner"`
+	Path               string `yaml:"path"`
+	RawFilePermissions string `yaml:"permissions" valid:"^0?[0-7]{3,4}$"`
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/file_test.go

@@ -0,0 +1,69 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"testing"
+)
+
+func TestEncodingValid(t *testing.T) {
+	tests := []struct {
+		value string
+
+		isValid bool
+	}{
+		{value: "base64", isValid: true},
+		{value: "b64", isValid: true},
+		{value: "gz", isValid: true},
+		{value: "gzip", isValid: true},
+		{value: "gz+base64", isValid: true},
+		{value: "gzip+base64", isValid: true},
+		{value: "gz+b64", isValid: true},
+		{value: "gzip+b64", isValid: true},
+		{value: "gzzzzbase64", isValid: false},
+		{value: "gzipppbase64", isValid: false},
+		{value: "unknown", isValid: false},
+	}
+
+	for _, tt := range tests {
+		isValid := (nil == AssertStructValid(File{Encoding: tt.value}))
+		if tt.isValid != isValid {
+			t.Errorf("bad assert (%s): want %t, got %t", tt.value, tt.isValid, isValid)
+		}
+	}
+}
+
+func TestRawFilePermissionsValid(t *testing.T) {
+	tests := []struct {
+		value string
+
+		isValid bool
+	}{
+		{value: "744", isValid: true},
+		{value: "0744", isValid: true},
+		{value: "1744", isValid: true},
+		{value: "01744", isValid: true},
+		{value: "11744", isValid: false},
+		{value: "rwxr--r--", isValid: false},
+		{value: "800", isValid: false},
+	}
+
+	for _, tt := range tests {
+		isValid := (nil == AssertStructValid(File{RawFilePermissions: tt.value}))
+		if tt.isValid != isValid {
+			t.Errorf("bad assert (%s): want %t, got %t", tt.value, tt.isValid, isValid)
+		}
+	}
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/flannel.go

@@ -0,0 +1,27 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type Flannel struct {
+	EtcdEndpoints string `yaml:"etcd_endpoints" env:"FLANNELD_ETCD_ENDPOINTS"`
+	EtcdCAFile    string `yaml:"etcd_cafile"    env:"FLANNELD_ETCD_CAFILE"`
+	EtcdCertFile  string `yaml:"etcd_certfile"  env:"FLANNELD_ETCD_CERTFILE"`
+	EtcdKeyFile   string `yaml:"etcd_keyfile"   env:"FLANNELD_ETCD_KEYFILE"`
+	EtcdPrefix    string `yaml:"etcd_prefix"    env:"FLANNELD_ETCD_PREFIX"`
+	IPMasq        string `yaml:"ip_masq"        env:"FLANNELD_IP_MASQ"`
+	SubnetFile    string `yaml:"subnet_file"    env:"FLANNELD_SUBNET_FILE"`
+	Iface         string `yaml:"interface"      env:"FLANNELD_IFACE"`
+	PublicIP      string `yaml:"public_ip"      env:"FLANNELD_PUBLIC_IP"`
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/fleet.go

@@ -0,0 +1,33 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type Fleet struct {
+	AgentTTL                string  `yaml:"agent_ttl"                 env:"FLEET_AGENT_TTL"`
+	AuthorizedKeysFile      string  `yaml:"authorized_keys_file"      env:"FLEET_AUTHORIZED_KEYS_FILE"`
+	DisableEngine           bool    `yaml:"disable_engine"            env:"FLEET_DISABLE_ENGINE"`
+	EngineReconcileInterval float64 `yaml:"engine_reconcile_interval" env:"FLEET_ENGINE_RECONCILE_INTERVAL"`
+	EtcdCAFile              string  `yaml:"etcd_cafile"               env:"FLEET_ETCD_CAFILE"`
+	EtcdCertFile            string  `yaml:"etcd_certfile"             env:"FLEET_ETCD_CERTFILE"`
+	EtcdKeyFile             string  `yaml:"etcd_keyfile"              env:"FLEET_ETCD_KEYFILE"`
+	EtcdKeyPrefix           string  `yaml:"etcd_key_prefix"           env:"FLEET_ETCD_KEY_PREFIX"`
+	EtcdRequestTimeout      float64 `yaml:"etcd_request_timeout"      env:"FLEET_ETCD_REQUEST_TIMEOUT"`
+	EtcdServers             string  `yaml:"etcd_servers"              env:"FLEET_ETCD_SERVERS"`
+	Metadata                string  `yaml:"metadata"                  env:"FLEET_METADATA"`
+	PublicIP                string  `yaml:"public_ip"                 env:"FLEET_PUBLIC_IP"`
+	TokenLimit              int     `yaml:"token_limit"               env:"FLEET_TOKEN_LIMIT"`
+	Verbosity               int     `yaml:"verbosity"                 env:"FLEET_VERBOSITY"`
+	VerifyUnits             bool    `yaml:"verify_units"              env:"FLEET_VERIFY_UNITS"`
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/ignition.go

@@ -0,0 +1,26 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"encoding/json"
+)
+
+func IsIgnitionConfig(userdata string) bool {
+	var cfg struct {
+		Version *int `json:"ignitionVersion" yaml:"ignition_version"`
+	}
+	return (json.Unmarshal([]byte(userdata), &cfg) == nil && cfg.Version != nil)
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/locksmith.go

@@ -0,0 +1,25 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type Locksmith struct {
+	Endpoint           string `yaml:"endpoint"      env:"LOCKSMITHD_ENDPOINT"`
+	EtcdCAFile         string `yaml:"etcd_cafile"   env:"LOCKSMITHD_ETCD_CAFILE"`
+	EtcdCertFile       string `yaml:"etcd_certfile" env:"LOCKSMITHD_ETCD_CERTFILE"`
+	EtcdKeyFile        string `yaml:"etcd_keyfile"  env:"LOCKSMITHD_ETCD_KEYFILE"`
+	Group              string `yaml:"group"         env:"LOCKSMITHD_GROUP"`
+	RebootWindowStart  string `yaml:"window_start"  env:"REBOOT_WINDOW_START"  valid:"^((?i:sun|mon|tue|wed|thu|fri|sat|sun) )?0*([0-9]|1[0-9]|2[0-3]):0*([0-9]|[1-5][0-9])$"`
+	RebootWindowLength string `yaml:"window_length" env:"REBOOT_WINDOW_LENGTH" valid:"^[-+]?([0-9]*(\\.[0-9]*)?[a-z]+)+$"`
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/locksmith_test.go

@@ -0,0 +1,76 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"testing"
+)
+
+func TestRebootWindowStart(t *testing.T) {
+	tests := []struct {
+		value string
+
+		isValid bool
+	}{
+		{value: "Sun 0:0", isValid: true},
+		{value: "Sun 00:00", isValid: true},
+		{value: "sUn 23:59", isValid: true},
+		{value: "mon 0:0", isValid: true},
+		{value: "tue 0:0", isValid: true},
+		{value: "tues 0:0", isValid: false},
+		{value: "wed 0:0", isValid: true},
+		{value: "thu 0:0", isValid: true},
+		{value: "thur 0:0", isValid: false},
+		{value: "fri 0:0", isValid: true},
+		{value: "sat 0:0", isValid: true},
+		{value: "sat00:00", isValid: false},
+		{value: "00:00", isValid: true},
+		{value: "10:10", isValid: true},
+		{value: "20:20", isValid: true},
+		{value: "20:30", isValid: true},
+		{value: "20:40", isValid: true},
+		{value: "20:50", isValid: true},
+		{value: "20:60", isValid: false},
+		{value: "24:00", isValid: false},
+	}
+
+	for _, tt := range tests {
+		isValid := (nil == AssertStructValid(Locksmith{RebootWindowStart: tt.value}))
+		if tt.isValid != isValid {
+			t.Errorf("bad assert (%s): want %t, got %t", tt.value, tt.isValid, isValid)
+		}
+	}
+}
+
+func TestRebootWindowLength(t *testing.T) {
+	tests := []struct {
+		value string
+
+		isValid bool
+	}{
+		{value: "1h", isValid: true},
+		{value: "1d", isValid: true},
+		{value: "0d", isValid: true},
+		{value: "0.5h", isValid: true},
+		{value: "0.5.0h", isValid: false},
+	}
+
+	for _, tt := range tests {
+		isValid := (nil == AssertStructValid(Locksmith{RebootWindowLength: tt.value}))
+		if tt.isValid != isValid {
+			t.Errorf("bad assert (%s): want %t, got %t", tt.value, tt.isValid, isValid)
+		}
+	}
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/oem.go

@@ -0,0 +1,23 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type OEM struct {
+	ID           string `yaml:"id"`
+	Name         string `yaml:"name"`
+	VersionID    string `yaml:"version_id"`
+	HomeURL      string `yaml:"home_url"`
+	BugReportURL string `yaml:"bug_report_url"`
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/script.go

@@ -0,0 +1,31 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"strings"
+)
+
+type Script []byte
+
+func IsScript(userdata string) bool {
+	header := strings.SplitN(userdata, "\n", 2)[0]
+	return strings.HasPrefix(header, "#!")
+}
+
+func NewScript(userdata string) (*Script, error) {
+	s := Script(userdata)
+	return &s, nil
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/unit.go

@@ -0,0 +1,30 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type Unit struct {
+	Name    string       `yaml:"name"`
+	Mask    bool         `yaml:"mask"`
+	Enable  bool         `yaml:"enable"`
+	Runtime bool         `yaml:"runtime"`
+	Content string       `yaml:"content"`
+	Command string       `yaml:"command" valid:"^(start|stop|restart|reload|try-restart|reload-or-restart|reload-or-try-restart)$"`
+	DropIns []UnitDropIn `yaml:"drop_ins"`
+}
+
+type UnitDropIn struct {
+	Name    string `yaml:"name"`
+	Content string `yaml:"content"`
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/unit_test.go

@@ -0,0 +1,46 @@
+/*
+   Copyright 2014 CoreOS, Inc.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package config
+
+import (
+	"testing"
+)
+
+func TestCommandValid(t *testing.T) {
+	tests := []struct {
+		value string
+
+		isValid bool
+	}{
+		{value: "start", isValid: true},
+		{value: "stop", isValid: true},
+		{value: "restart", isValid: true},
+		{value: "reload", isValid: true},
+		{value: "try-restart", isValid: true},
+		{value: "reload-or-restart", isValid: true},
+		{value: "reload-or-try-restart", isValid: true},
+		{value: "tryrestart", isValid: false},
+		{value: "unknown", isValid: false},
+	}
+
+	for _, tt := range tests {
+		isValid := (nil == AssertStructValid(Unit{Command: tt.value}))
+		if tt.isValid != isValid {
+			t.Errorf("bad assert (%s): want %t, got %t", tt.value, tt.isValid, isValid)
+		}
+	}
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/update.go

@@ -0,0 +1,21 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type Update struct {
+	RebootStrategy string `yaml:"reboot_strategy" env:"REBOOT_STRATEGY" valid:"^(best-effort|etcd-lock|reboot|off)$"`
+	Group          string `yaml:"group"           env:"GROUP"`
+	Server         string `yaml:"server"          env:"SERVER"`
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/update_test.go

@@ -0,0 +1,43 @@
+/*
+   Copyright 2014 CoreOS, Inc.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package config
+
+import (
+	"testing"
+)
+
+func TestRebootStrategyValid(t *testing.T) {
+	tests := []struct {
+		value string
+
+		isValid bool
+	}{
+		{value: "best-effort", isValid: true},
+		{value: "etcd-lock", isValid: true},
+		{value: "reboot", isValid: true},
+		{value: "off", isValid: true},
+		{value: "besteffort", isValid: false},
+		{value: "unknown", isValid: false},
+	}
+
+	for _, tt := range tests {
+		isValid := (nil == AssertStructValid(Update{RebootStrategy: tt.value}))
+		if tt.isValid != isValid {
+			t.Errorf("bad assert (%s): want %t, got %t", tt.value, tt.isValid, isValid)
+		}
+	}
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/user.go

@@ -0,0 +1,33 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+type User struct {
+	Name                 string   `yaml:"name"`
+	PasswordHash         string   `yaml:"passwd"`
+	SSHAuthorizedKeys    []string `yaml:"ssh_authorized_keys"`
+	SSHImportGithubUser  string   `yaml:"coreos_ssh_import_github"       deprecated:"trying to fetch from a remote endpoint introduces too many intermittent errors"`
+	SSHImportGithubUsers []string `yaml:"coreos_ssh_import_github_users" deprecated:"trying to fetch from a remote endpoint introduces too many intermittent errors"`
+	SSHImportURL         string   `yaml:"coreos_ssh_import_url"          deprecated:"trying to fetch from a remote endpoint introduces too many intermittent errors"`
+	GECOS                string   `yaml:"gecos"`
+	Homedir              string   `yaml:"homedir"`
+	NoCreateHome         bool     `yaml:"no_create_home"`
+	PrimaryGroup         string   `yaml:"primary_group"`
+	Groups               []string `yaml:"groups"`
+	NoUserGroup          bool     `yaml:"no_user_group"`
+	System               bool     `yaml:"system"`
+	NoLogInit            bool     `yaml:"no_log_init"`
+	Shell                string   `yaml:"shell"`
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/validate/context.go

@@ -0,0 +1,52 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validate
+
+import (
+	"strings"
+)
+
+// context represents the current position within a newline-delimited string.
+// Each line is loaded, one by one, into currentLine (newline omitted) and
+// lineNumber keeps track of its position within the original string.
+type context struct {
+	currentLine    string
+	remainingLines string
+	lineNumber     int
+}
+
+// Increment moves the context to the next line (if available).
+func (c *context) Increment() {
+	if c.currentLine == "" && c.remainingLines == "" {
+		return
+	}
+
+	lines := strings.SplitN(c.remainingLines, "\n", 2)
+	c.currentLine = lines[0]
+	if len(lines) == 2 {
+		c.remainingLines = lines[1]
+	} else {
+		c.remainingLines = ""
+	}
+	c.lineNumber++
+}
+
+// NewContext creates a context from the provided data. It strips out all
+// carriage returns and moves to the first line (if available).
+func NewContext(content []byte) context {
+	c := context{remainingLines: strings.Replace(string(content), "\r", "", -1)}
+	c.Increment()
+	return c
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/validate/context_test.go

@@ -0,0 +1,131 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validate
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestNewContext(t *testing.T) {
+	tests := []struct {
+		in string
+
+		out context
+	}{
+		{
+			out: context{
+				currentLine:    "",
+				remainingLines: "",
+				lineNumber:     0,
+			},
+		},
+		{
+			in: "this\r\nis\r\na\r\ntest",
+			out: context{
+				currentLine:    "this",
+				remainingLines: "is\na\ntest",
+				lineNumber:     1,
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		if out := NewContext([]byte(tt.in)); !reflect.DeepEqual(tt.out, out) {
+			t.Errorf("bad context (%q): want %#v, got %#v", tt.in, tt.out, out)
+		}
+	}
+}
+
+func TestIncrement(t *testing.T) {
+	tests := []struct {
+		init context
+		op   func(c *context)
+
+		res context
+	}{
+		{
+			init: context{
+				currentLine:    "",
+				remainingLines: "",
+				lineNumber:     0,
+			},
+			res: context{
+				currentLine:    "",
+				remainingLines: "",
+				lineNumber:     0,
+			},
+			op: func(c *context) {
+				c.Increment()
+			},
+		},
+		{
+			init: context{
+				currentLine:    "test",
+				remainingLines: "",
+				lineNumber:     1,
+			},
+			res: context{
+				currentLine:    "",
+				remainingLines: "",
+				lineNumber:     2,
+			},
+			op: func(c *context) {
+				c.Increment()
+				c.Increment()
+				c.Increment()
+			},
+		},
+		{
+			init: context{
+				currentLine:    "this",
+				remainingLines: "is\na\ntest",
+				lineNumber:     1,
+			},
+			res: context{
+				currentLine:    "is",
+				remainingLines: "a\ntest",
+				lineNumber:     2,
+			},
+			op: func(c *context) {
+				c.Increment()
+			},
+		},
+		{
+			init: context{
+				currentLine:    "this",
+				remainingLines: "is\na\ntest",
+				lineNumber:     1,
+			},
+			res: context{
+				currentLine:    "test",
+				remainingLines: "",
+				lineNumber:     4,
+			},
+			op: func(c *context) {
+				c.Increment()
+				c.Increment()
+				c.Increment()
+			},
+		},
+	}
+
+	for i, tt := range tests {
+		res := tt.init
+		if tt.op(&res); !reflect.DeepEqual(tt.res, res) {
+			t.Errorf("bad context (%d, %#v): want %#v, got %#v", i, tt.init, tt.res, res)
+		}
+	}
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/validate/node.go

@@ -0,0 +1,157 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validate
+
+import (
+	"fmt"
+	"reflect"
+	"regexp"
+)
+
+var (
+	yamlKey  = regexp.MustCompile(`^ *-? ?(?P<key>.*?):`)
+	yamlElem = regexp.MustCompile(`^ *-`)
+)
+
+type node struct {
+	name     string
+	line     int
+	children []node
+	field    reflect.StructField
+	reflect.Value
+}
+
+// Child attempts to find the child with the given name in the node's list of
+// children. If no such child is found, an invalid node is returned.
+func (n node) Child(name string) node {
+	for _, c := range n.children {
+		if c.name == name {
+			return c
+		}
+	}
+	return node{}
+}
+
+// HumanType returns the human-consumable string representation of the type of
+// the node.
+func (n node) HumanType() string {
+	switch k := n.Kind(); k {
+	case reflect.Slice:
+		c := n.Type().Elem()
+		return "[]" + node{Value: reflect.New(c).Elem()}.HumanType()
+	default:
+		return k.String()
+	}
+}
+
+// NewNode returns the node representation of the given value. The context
+// will be used in an attempt to determine line numbers for the given value.
+func NewNode(value interface{}, context context) node {
+	var n node
+	toNode(value, context, &n)
+	return n
+}
+
+// toNode converts the given value into a node and then recursively processes
+// each of the nodes components (e.g. fields, array elements, keys).
+func toNode(v interface{}, c context, n *node) {
+	vv := reflect.ValueOf(v)
+	if !vv.IsValid() {
+		return
+	}
+
+	n.Value = vv
+	switch vv.Kind() {
+	case reflect.Struct:
+		// Walk over each field in the structure, skipping unexported fields,
+		// and create a node for it.
+		for i := 0; i < vv.Type().NumField(); i++ {
+			ft := vv.Type().Field(i)
+			k := ft.Tag.Get("yaml")
+			if k == "-" || k == "" {
+				continue
+			}
+
+			cn := node{name: k, field: ft}
+			c, ok := findKey(cn.name, c)
+			if ok {
+				cn.line = c.lineNumber
+			}
+			toNode(vv.Field(i).Interface(), c, &cn)
+			n.children = append(n.children, cn)
+		}
+	case reflect.Map:
+		// Walk over each key in the map and create a node for it.
+		v := v.(map[interface{}]interface{})
+		for k, cv := range v {
+			cn := node{name: fmt.Sprintf("%s", k)}
+			c, ok := findKey(cn.name, c)
+			if ok {
+				cn.line = c.lineNumber
+			}
+			toNode(cv, c, &cn)
+			n.children = append(n.children, cn)
+		}
+	case reflect.Slice:
+		// Walk over each element in the slice and create a node for it.
+		// While iterating over the slice, preserve the context after it
+		// is modified. This allows the line numbers to reflect the current
+		// element instead of the first.
+		for i := 0; i < vv.Len(); i++ {
+			cn := node{
+				name:  fmt.Sprintf("%s[%d]", n.name, i),
+				field: n.field,
+			}
+			var ok bool
+			c, ok = findElem(c)
+			if ok {
+				cn.line = c.lineNumber
+			}
+			toNode(vv.Index(i).Interface(), c, &cn)
+			n.children = append(n.children, cn)
+			c.Increment()
+		}
+	case reflect.String, reflect.Int, reflect.Bool, reflect.Float64:
+	default:
+		panic(fmt.Sprintf("toNode(): unhandled kind %s", vv.Kind()))
+	}
+}
+
+// findKey attempts to find the requested key within the provided context.
+// A modified copy of the context is returned with every line up to the key
+// incremented past. A boolean, true if the key was found, is also returned.
+func findKey(key string, context context) (context, bool) {
+	return find(yamlKey, key, context)
+}
+
+// findElem attempts to find an array element within the provided context.
+// A modified copy of the context is returned with every line up to the array
+// element incremented past. A boolean, true if the key was found, is also
+// returned.
+func findElem(context context) (context, bool) {
+	return find(yamlElem, "", context)
+}
+
+func find(exp *regexp.Regexp, key string, context context) (context, bool) {
+	for len(context.currentLine) > 0 || len(context.remainingLines) > 0 {
+		matches := exp.FindStringSubmatch(context.currentLine)
+		if len(matches) > 0 && (key == "" || matches[1] == key) {
+			return context, true
+		}
+
+		context.Increment()
+	}
+	return context, false
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/validate/node_test.go

@@ -0,0 +1,284 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validate
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestChild(t *testing.T) {
+	tests := []struct {
+		parent node
+		name   string
+
+		child node
+	}{
+		{},
+		{
+			name: "c1",
+		},
+		{
+			parent: node{
+				children: []node{
+					node{name: "c1"},
+					node{name: "c2"},
+					node{name: "c3"},
+				},
+			},
+		},
+		{
+			parent: node{
+				children: []node{
+					node{name: "c1"},
+					node{name: "c2"},
+					node{name: "c3"},
+				},
+			},
+			name:  "c2",
+			child: node{name: "c2"},
+		},
+	}
+
+	for _, tt := range tests {
+		if child := tt.parent.Child(tt.name); !reflect.DeepEqual(tt.child, child) {
+			t.Errorf("bad child (%q): want %#v, got %#v", tt.name, tt.child, child)
+		}
+	}
+}
+
+func TestHumanType(t *testing.T) {
+	tests := []struct {
+		node node
+
+		humanType string
+	}{
+		{
+			humanType: "invalid",
+		},
+		{
+			node:      node{Value: reflect.ValueOf("hello")},
+			humanType: "string",
+		},
+		{
+			node: node{
+				Value: reflect.ValueOf([]int{1, 2}),
+				children: []node{
+					node{Value: reflect.ValueOf(1)},
+					node{Value: reflect.ValueOf(2)},
+				}},
+			humanType: "[]int",
+		},
+	}
+
+	for _, tt := range tests {
+		if humanType := tt.node.HumanType(); tt.humanType != humanType {
+			t.Errorf("bad type (%q): want %q, got %q", tt.node, tt.humanType, humanType)
+		}
+	}
+}
+
+func TestToNode(t *testing.T) {
+	tests := []struct {
+		value   interface{}
+		context context
+
+		node node
+	}{
+		{},
+		{
+			value: struct{}{},
+			node:  node{Value: reflect.ValueOf(struct{}{})},
+		},
+		{
+			value: struct {
+				A int `yaml:"a"`
+			}{},
+			node: node{
+				children: []node{
+					node{
+						name: "a",
+						field: reflect.TypeOf(struct {
+							A int `yaml:"a"`
+						}{}).Field(0),
+					},
+				},
+			},
+		},
+		{
+			value: struct {
+				A []int `yaml:"a"`
+			}{},
+			node: node{
+				children: []node{
+					node{
+						name: "a",
+						field: reflect.TypeOf(struct {
+							A []int `yaml:"a"`
+						}{}).Field(0),
+					},
+				},
+			},
+		},
+		{
+			value: map[interface{}]interface{}{
+				"a": map[interface{}]interface{}{
+					"b": 2,
+				},
+			},
+			context: NewContext([]byte("a:\n  b: 2")),
+			node: node{
+				children: []node{
+					node{
+						line: 1,
+						name: "a",
+						children: []node{
+							node{name: "b", line: 2},
+						},
+					},
+				},
+			},
+		},
+		{
+			value: struct {
+				A struct {
+					Jon bool `yaml:"b"`
+				} `yaml:"a"`
+			}{},
+			node: node{
+				children: []node{
+					node{
+						name: "a",
+						children: []node{
+							node{
+								name: "b",
+								field: reflect.TypeOf(struct {
+									Jon bool `yaml:"b"`
+								}{}).Field(0),
+								Value: reflect.ValueOf(false),
+							},
+						},
+						field: reflect.TypeOf(struct {
+							A struct {
+								Jon bool `yaml:"b"`
+							} `yaml:"a"`
+						}{}).Field(0),
+						Value: reflect.ValueOf(struct {
+							Jon bool `yaml:"b"`
+						}{}),
+					},
+				},
+				Value: reflect.ValueOf(struct {
+					A struct {
+						Jon bool `yaml:"b"`
+					} `yaml:"a"`
+				}{}),
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		var node node
+		toNode(tt.value, tt.context, &node)
+		if !nodesEqual(tt.node, node) {
+			t.Errorf("bad node (%#v): want %#v, got %#v", tt.value, tt.node, node)
+		}
+	}
+}
+
+func TestFindKey(t *testing.T) {
+	tests := []struct {
+		key     string
+		context context
+
+		found bool
+	}{
+		{},
+		{
+			key:     "key1",
+			context: NewContext([]byte("key1: hi")),
+			found:   true,
+		},
+		{
+			key:     "key2",
+			context: NewContext([]byte("key1: hi")),
+			found:   false,
+		},
+		{
+			key:     "key3",
+			context: NewContext([]byte("key1:\n  key2:\n    key3: hi")),
+			found:   true,
+		},
+		{
+			key:     "key4",
+			context: NewContext([]byte("key1:\n  - key4: hi")),
+			found:   true,
+		},
+		{
+			key:     "key5",
+			context: NewContext([]byte("#key5")),
+			found:   false,
+		},
+	}
+
+	for _, tt := range tests {
+		if _, found := findKey(tt.key, tt.context); tt.found != found {
+			t.Errorf("bad find (%q): want %t, got %t", tt.key, tt.found, found)
+		}
+	}
+}
+
+func TestFindElem(t *testing.T) {
+	tests := []struct {
+		context context
+
+		found bool
+	}{
+		{},
+		{
+			context: NewContext([]byte("test: hi")),
+			found:   false,
+		},
+		{
+			context: NewContext([]byte("test:\n  - a\n  -b")),
+			found:   true,
+		},
+		{
+			context: NewContext([]byte("test:\n  -\n    a")),
+			found:   true,
+		},
+	}
+
+	for _, tt := range tests {
+		if _, found := findElem(tt.context); tt.found != found {
+			t.Errorf("bad find (%q): want %t, got %t", tt.context, tt.found, found)
+		}
+	}
+}
+
+func nodesEqual(a, b node) bool {
+	if a.name != b.name ||
+		a.line != b.line ||
+		!reflect.DeepEqual(a.field, b.field) ||
+		len(a.children) != len(b.children) {
+		return false
+	}
+	for i := 0; i < len(a.children); i++ {
+		if !nodesEqual(a.children[i], b.children[i]) {
+			return false
+		}
+	}
+	return true
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/validate/report.go

@@ -0,0 +1,88 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validate
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+// Report represents the list of entries resulting from validation.
+type Report struct {
+	entries []Entry
+}
+
+// Error adds an error entry to the report.
+func (r *Report) Error(line int, message string) {
+	r.entries = append(r.entries, Entry{entryError, message, line})
+}
+
+// Warning adds a warning entry to the report.
+func (r *Report) Warning(line int, message string) {
+	r.entries = append(r.entries, Entry{entryWarning, message, line})
+}
+
+// Info adds an info entry to the report.
+func (r *Report) Info(line int, message string) {
+	r.entries = append(r.entries, Entry{entryInfo, message, line})
+}
+
+// Entries returns the list of entries in the report.
+func (r *Report) Entries() []Entry {
+	return r.entries
+}
+
+// Entry represents a single generic item in the report.
+type Entry struct {
+	kind    entryKind
+	message string
+	line    int
+}
+
+// String returns a human-readable representation of the entry.
+func (e Entry) String() string {
+	return fmt.Sprintf("line %d: %s: %s", e.line, e.kind, e.message)
+}
+
+// MarshalJSON satisfies the json.Marshaler interface, returning the entry
+// encoded as a JSON object.
+func (e Entry) MarshalJSON() ([]byte, error) {
+	return json.Marshal(map[string]interface{}{
+		"kind":    e.kind.String(),
+		"message": e.message,
+		"line":    e.line,
+	})
+}
+
+type entryKind int
+
+const (
+	entryError entryKind = iota
+	entryWarning
+	entryInfo
+)
+
+func (k entryKind) String() string {
+	switch k {
+	case entryError:
+		return "error"
+	case entryWarning:
+		return "warning"
+	case entryInfo:
+		return "info"
+	default:
+		panic(fmt.Sprintf("invalid kind %d", k))
+	}
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/validate/report_test.go

@@ -0,0 +1,96 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validate
+
+import (
+	"bytes"
+	"reflect"
+	"testing"
+)
+
+func TestEntry(t *testing.T) {
+	tests := []struct {
+		entry Entry
+
+		str  string
+		json []byte
+	}{
+		{
+			Entry{entryInfo, "test info", 1},
+			"line 1: info: test info",
+			[]byte(`{"kind":"info","line":1,"message":"test info"}`),
+		},
+		{
+			Entry{entryWarning, "test warning", 1},
+			"line 1: warning: test warning",
+			[]byte(`{"kind":"warning","line":1,"message":"test warning"}`),
+		},
+		{
+			Entry{entryError, "test error", 2},
+			"line 2: error: test error",
+			[]byte(`{"kind":"error","line":2,"message":"test error"}`),
+		},
+	}
+
+	for _, tt := range tests {
+		if str := tt.entry.String(); tt.str != str {
+			t.Errorf("bad string (%q): want %q, got %q", tt.entry, tt.str, str)
+		}
+		json, err := tt.entry.MarshalJSON()
+		if err != nil {
+			t.Errorf("bad error (%q): want %v, got %q", tt.entry, nil, err)
+		}
+		if !bytes.Equal(tt.json, json) {
+			t.Errorf("bad JSON (%q): want %q, got %q", tt.entry, tt.json, json)
+		}
+	}
+}
+
+func TestReport(t *testing.T) {
+	type reportFunc struct {
+		fn      func(*Report, int, string)
+		line    int
+		message string
+	}
+
+	tests := []struct {
+		fs []reportFunc
+
+		es []Entry
+	}{
+		{
+			[]reportFunc{
+				{(*Report).Warning, 1, "test warning 1"},
+				{(*Report).Error, 2, "test error 2"},
+				{(*Report).Info, 10, "test info 10"},
+			},
+			[]Entry{
+				Entry{entryWarning, "test warning 1", 1},
+				Entry{entryError, "test error 2", 2},
+				Entry{entryInfo, "test info 10", 10},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		r := Report{}
+		for _, f := range tt.fs {
+			f.fn(&r, f.line, f.message)
+		}
+		if es := r.Entries(); !reflect.DeepEqual(tt.es, es) {
+			t.Errorf("bad entries (%v): want %#v, got %#v", tt.fs, tt.es, es)
+		}
+	}
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/validate/rules.go

@@ -0,0 +1,180 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validate
+
+import (
+	"fmt"
+	"net/url"
+	"path"
+	"reflect"
+	"strings"
+
+	"github.com/coreos/coreos-cloudinit/config"
+)
+
+type rule func(config node, report *Report)
+
+// Rules contains all of the validation rules.
+var Rules []rule = []rule{
+	checkDiscoveryUrl,
+	checkEncoding,
+	checkStructure,
+	checkValidity,
+	checkWriteFiles,
+	checkWriteFilesUnderCoreos,
+}
+
+// checkDiscoveryUrl verifies that the string is a valid url.
+func checkDiscoveryUrl(cfg node, report *Report) {
+	c := cfg.Child("coreos").Child("etcd").Child("discovery")
+	if !c.IsValid() {
+		return
+	}
+
+	if _, err := url.ParseRequestURI(c.String()); err != nil {
+		report.Warning(c.line, "discovery URL is not valid")
+	}
+}
+
+// checkEncoding validates that, for each file under 'write_files', the
+// content can be decoded given the specified encoding.
+func checkEncoding(cfg node, report *Report) {
+	for _, f := range cfg.Child("write_files").children {
+		e := f.Child("encoding")
+		if !e.IsValid() {
+			continue
+		}
+
+		c := f.Child("content")
+		if _, err := config.DecodeContent(c.String(), e.String()); err != nil {
+			report.Error(c.line, fmt.Sprintf("content cannot be decoded as %q", e.String()))
+		}
+	}
+}
+
+// checkStructure compares the provided config to the empty config.CloudConfig
+// structure. Each node is checked to make sure that it exists in the known
+// structure and that its type is compatible.
+func checkStructure(cfg node, report *Report) {
+	g := NewNode(config.CloudConfig{}, NewContext([]byte{}))
+	checkNodeStructure(cfg, g, report)
+}
+
+func checkNodeStructure(n, g node, r *Report) {
+	if !isCompatible(n.Kind(), g.Kind()) {
+		r.Warning(n.line, fmt.Sprintf("incorrect type for %q (want %s)", n.name, g.HumanType()))
+		return
+	}
+
+	switch g.Kind() {
+	case reflect.Struct:
+		for _, cn := range n.children {
+			if cg := g.Child(cn.name); cg.IsValid() {
+				if msg := cg.field.Tag.Get("deprecated"); msg != "" {
+					r.Warning(cn.line, fmt.Sprintf("deprecated key %q (%s)", cn.name, msg))
+				}
+				checkNodeStructure(cn, cg, r)
+			} else {
+				r.Warning(cn.line, fmt.Sprintf("unrecognized key %q", cn.name))
+			}
+		}
+	case reflect.Slice:
+		for _, cn := range n.children {
+			var cg node
+			c := g.Type().Elem()
+			toNode(reflect.New(c).Elem().Interface(), context{}, &cg)
+			checkNodeStructure(cn, cg, r)
+		}
+	case reflect.String, reflect.Int, reflect.Float64, reflect.Bool:
+	default:
+		panic(fmt.Sprintf("checkNodeStructure(): unhandled kind %s", g.Kind()))
+	}
+}
+
+// isCompatible determines if the type of kind n can be converted to the type
+// of kind g in the context of YAML. This is not an exhaustive list, but its
+// enough for the purposes of cloud-config validation.
+func isCompatible(n, g reflect.Kind) bool {
+	switch g {
+	case reflect.String:
+		return n == reflect.String || n == reflect.Int || n == reflect.Float64 || n == reflect.Bool
+	case reflect.Struct:
+		return n == reflect.Struct || n == reflect.Map
+	case reflect.Float64:
+		return n == reflect.Float64 || n == reflect.Int
+	case reflect.Bool, reflect.Slice, reflect.Int:
+		return n == g
+	default:
+		panic(fmt.Sprintf("isCompatible(): unhandled kind %s", g))
+	}
+}
+
+// checkValidity checks the value of every node in the provided config by
+// running config.AssertValid() on it.
+func checkValidity(cfg node, report *Report) {
+	g := NewNode(config.CloudConfig{}, NewContext([]byte{}))
+	checkNodeValidity(cfg, g, report)
+}
+
+func checkNodeValidity(n, g node, r *Report) {
+	if err := config.AssertValid(n.Value, g.field.Tag.Get("valid")); err != nil {
+		r.Error(n.line, fmt.Sprintf("invalid value %v", n.Value.Interface()))
+	}
+	switch g.Kind() {
+	case reflect.Struct:
+		for _, cn := range n.children {
+			if cg := g.Child(cn.name); cg.IsValid() {
+				checkNodeValidity(cn, cg, r)
+			}
+		}
+	case reflect.Slice:
+		for _, cn := range n.children {
+			var cg node
+			c := g.Type().Elem()
+			toNode(reflect.New(c).Elem().Interface(), context{}, &cg)
+			checkNodeValidity(cn, cg, r)
+		}
+	case reflect.String, reflect.Int, reflect.Float64, reflect.Bool:
+	default:
+		panic(fmt.Sprintf("checkNodeValidity(): unhandled kind %s", g.Kind()))
+	}
+}
+
+// checkWriteFiles checks to make sure that the target file can actually be
+// written. Note that this check is approximate (it only checks to see if the file
+// is under /usr).
+func checkWriteFiles(cfg node, report *Report) {
+	for _, f := range cfg.Child("write_files").children {
+		c := f.Child("path")
+		if !c.IsValid() {
+			continue
+		}
+
+		d := path.Dir(c.String())
+		switch {
+		case strings.HasPrefix(d, "/usr"):
+			report.Error(c.line, "file cannot be written to a read-only filesystem")
+		}
+	}
+}
+
+// checkWriteFilesUnderCoreos checks to see if the 'write_files' node is a
+// child of 'coreos' (it shouldn't be).
+func checkWriteFilesUnderCoreos(cfg node, report *Report) {
+	c := cfg.Child("coreos").Child("write_files")
+	if c.IsValid() {
+		report.Info(c.line, "write_files doesn't belong under coreos")
+	}
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/validate/rules_test.go

@@ -0,0 +1,408 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validate
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestCheckDiscoveryUrl(t *testing.T) {
+	tests := []struct {
+		config string
+
+		entries []Entry
+	}{
+		{},
+		{
+			config: "coreos:\n  etcd:\n    discovery: https://discovery.etcd.io/00000000000000000000000000000000",
+		},
+		{
+			config: "coreos:\n  etcd:\n    discovery: http://custom.domain/mytoken",
+		},
+		{
+			config:  "coreos:\n  etcd:\n    discovery: disco",
+			entries: []Entry{{entryWarning, "discovery URL is not valid", 3}},
+		},
+	}
+
+	for i, tt := range tests {
+		r := Report{}
+		n, err := parseCloudConfig([]byte(tt.config), &r)
+		if err != nil {
+			panic(err)
+		}
+		checkDiscoveryUrl(n, &r)
+
+		if e := r.Entries(); !reflect.DeepEqual(tt.entries, e) {
+			t.Errorf("bad report (%d, %q): want %#v, got %#v", i, tt.config, tt.entries, e)
+		}
+	}
+}
+
+func TestCheckEncoding(t *testing.T) {
+	tests := []struct {
+		config string
+
+		entries []Entry
+	}{
+		{},
+		{
+			config: "write_files:\n  - encoding: base64\n    content: aGVsbG8K",
+		},
+		{
+			config: "write_files:\n  - content: !!binary aGVsbG8K",
+		},
+		{
+			config:  "write_files:\n  - encoding: base64\n    content: !!binary aGVsbG8K",
+			entries: []Entry{{entryError, `content cannot be decoded as "base64"`, 3}},
+		},
+		{
+			config: "write_files:\n  - encoding: base64\n    content: !!binary YUdWc2JHOEsK",
+		},
+		{
+			config: "write_files:\n  - encoding: gzip\n    content: !!binary H4sIAOC3tVQAA8tIzcnJ5wIAIDA6NgYAAAA=",
+		},
+		{
+			config: "write_files:\n  - encoding: gzip+base64\n    content: H4sIAOC3tVQAA8tIzcnJ5wIAIDA6NgYAAAA=",
+		},
+		{
+			config:  "write_files:\n  - encoding: custom\n    content: hello",
+			entries: []Entry{{entryError, `content cannot be decoded as "custom"`, 3}},
+		},
+	}
+
+	for i, tt := range tests {
+		r := Report{}
+		n, err := parseCloudConfig([]byte(tt.config), &r)
+		if err != nil {
+			panic(err)
+		}
+		checkEncoding(n, &r)
+
+		if e := r.Entries(); !reflect.DeepEqual(tt.entries, e) {
+			t.Errorf("bad report (%d, %q): want %#v, got %#v", i, tt.config, tt.entries, e)
+		}
+	}
+}
+
+func TestCheckStructure(t *testing.T) {
+	tests := []struct {
+		config string
+
+		entries []Entry
+	}{
+		{},
+
+		// Test for unrecognized keys
+		{
+			config:  "test:",
+			entries: []Entry{{entryWarning, "unrecognized key \"test\"", 1}},
+		},
+		{
+			config:  "coreos:\n  etcd:\n    bad:",
+			entries: []Entry{{entryWarning, "unrecognized key \"bad\"", 3}},
+		},
+		{
+			config: "coreos:\n  etcd:\n    discovery: good",
+		},
+
+		// Test for deprecated keys
+		{
+			config: "coreos:\n  etcd:\n    addr: hi",
+		},
+		{
+			config:  "coreos:\n  etcd:\n    proxy: hi",
+			entries: []Entry{{entryWarning, "deprecated key \"proxy\" (etcd2 options no longer work for etcd)", 3}},
+		},
+
+		// Test for error on list of nodes
+		{
+			config: "coreos:\n  units:\n    - hello\n    - goodbye",
+			entries: []Entry{
+				{entryWarning, "incorrect type for \"units[0]\" (want struct)", 3},
+				{entryWarning, "incorrect type for \"units[1]\" (want struct)", 4},
+			},
+		},
+
+		// Test for incorrect types
+		// Want boolean
+		{
+			config: "coreos:\n  units:\n    - enable: true",
+		},
+		{
+			config:  "coreos:\n  units:\n    - enable: 4",
+			entries: []Entry{{entryWarning, "incorrect type for \"enable\" (want bool)", 3}},
+		},
+		{
+			config:  "coreos:\n  units:\n    - enable: bad",
+			entries: []Entry{{entryWarning, "incorrect type for \"enable\" (want bool)", 3}},
+		},
+		{
+			config:  "coreos:\n  units:\n    - enable:\n        bad:",
+			entries: []Entry{{entryWarning, "incorrect type for \"enable\" (want bool)", 3}},
+		},
+		{
+			config:  "coreos:\n  units:\n    - enable:\n      - bad",
+			entries: []Entry{{entryWarning, "incorrect type for \"enable\" (want bool)", 3}},
+		},
+		// Want string
+		{
+			config: "hostname: true",
+		},
+		{
+			config: "hostname: 4",
+		},
+		{
+			config: "hostname: host",
+		},
+		{
+			config:  "hostname:\n  name:",
+			entries: []Entry{{entryWarning, "incorrect type for \"hostname\" (want string)", 1}},
+		},
+		{
+			config:  "hostname:\n  - name",
+			entries: []Entry{{entryWarning, "incorrect type for \"hostname\" (want string)", 1}},
+		},
+		// Want struct
+		{
+			config:  "coreos: true",
+			entries: []Entry{{entryWarning, "incorrect type for \"coreos\" (want struct)", 1}},
+		},
+		{
+			config:  "coreos: 4",
+			entries: []Entry{{entryWarning, "incorrect type for \"coreos\" (want struct)", 1}},
+		},
+		{
+			config:  "coreos: hello",
+			entries: []Entry{{entryWarning, "incorrect type for \"coreos\" (want struct)", 1}},
+		},
+		{
+			config: "coreos:\n  etcd:\n    discovery: fire in the disco",
+		},
+		{
+			config:  "coreos:\n  - hello",
+			entries: []Entry{{entryWarning, "incorrect type for \"coreos\" (want struct)", 1}},
+		},
+		// Want []string
+		{
+			config:  "ssh_authorized_keys: true",
+			entries: []Entry{{entryWarning, "incorrect type for \"ssh_authorized_keys\" (want []string)", 1}},
+		},
+		{
+			config:  "ssh_authorized_keys: 4",
+			entries: []Entry{{entryWarning, "incorrect type for \"ssh_authorized_keys\" (want []string)", 1}},
+		},
+		{
+			config:  "ssh_authorized_keys: key",
+			entries: []Entry{{entryWarning, "incorrect type for \"ssh_authorized_keys\" (want []string)", 1}},
+		},
+		{
+			config:  "ssh_authorized_keys:\n  key: value",
+			entries: []Entry{{entryWarning, "incorrect type for \"ssh_authorized_keys\" (want []string)", 1}},
+		},
+		{
+			config: "ssh_authorized_keys:\n  - key",
+		},
+		{
+			config:  "ssh_authorized_keys:\n  - key: value",
+			entries: []Entry{{entryWarning, "incorrect type for \"ssh_authorized_keys[0]\" (want string)", 2}},
+		},
+		// Want []struct
+		{
+			config:  "users:\n  true",
+			entries: []Entry{{entryWarning, "incorrect type for \"users\" (want []struct)", 1}},
+		},
+		{
+			config:  "users:\n  4",
+			entries: []Entry{{entryWarning, "incorrect type for \"users\" (want []struct)", 1}},
+		},
+		{
+			config:  "users:\n  bad",
+			entries: []Entry{{entryWarning, "incorrect type for \"users\" (want []struct)", 1}},
+		},
+		{
+			config:  "users:\n  bad:",
+			entries: []Entry{{entryWarning, "incorrect type for \"users\" (want []struct)", 1}},
+		},
+		{
+			config: "users:\n  - name: good",
+		},
+		// Want struct within array
+		{
+			config:  "users:\n  - true",
+			entries: []Entry{{entryWarning, "incorrect type for \"users[0]\" (want struct)", 2}},
+		},
+		{
+			config:  "users:\n  - name: hi\n  - true",
+			entries: []Entry{{entryWarning, "incorrect type for \"users[1]\" (want struct)", 3}},
+		},
+		{
+			config:  "users:\n  - 4",
+			entries: []Entry{{entryWarning, "incorrect type for \"users[0]\" (want struct)", 2}},
+		},
+		{
+			config:  "users:\n  - bad",
+			entries: []Entry{{entryWarning, "incorrect type for \"users[0]\" (want struct)", 2}},
+		},
+		{
+			config:  "users:\n  - - bad",
+			entries: []Entry{{entryWarning, "incorrect type for \"users[0]\" (want struct)", 2}},
+		},
+	}
+
+	for i, tt := range tests {
+		r := Report{}
+		n, err := parseCloudConfig([]byte(tt.config), &r)
+		if err != nil {
+			panic(err)
+		}
+		checkStructure(n, &r)
+
+		if e := r.Entries(); !reflect.DeepEqual(tt.entries, e) {
+			t.Errorf("bad report (%d, %q): want %#v, got %#v", i, tt.config, tt.entries, e)
+		}
+	}
+}
+
+func TestCheckValidity(t *testing.T) {
+	tests := []struct {
+		config string
+
+		entries []Entry
+	}{
+		// string
+		{
+			config: "hostname: test",
+		},
+
+		// int
+		{
+			config: "coreos:\n  fleet:\n    verbosity: 2",
+		},
+
+		// bool
+		{
+			config: "coreos:\n  units:\n    - enable: true",
+		},
+
+		// slice
+		{
+			config: "coreos:\n  units:\n    - command: start\n    - name: stop",
+		},
+		{
+			config:  "coreos:\n  units:\n    - command: lol",
+			entries: []Entry{{entryError, "invalid value lol", 3}},
+		},
+
+		// struct
+		{
+			config: "coreos:\n  update:\n    reboot_strategy: off",
+		},
+		{
+			config:  "coreos:\n  update:\n    reboot_strategy: always",
+			entries: []Entry{{entryError, "invalid value always", 3}},
+		},
+
+		// unknown
+		{
+			config: "unknown: hi",
+		},
+	}
+
+	for i, tt := range tests {
+		r := Report{}
+		n, err := parseCloudConfig([]byte(tt.config), &r)
+		if err != nil {
+			panic(err)
+		}
+		checkValidity(n, &r)
+
+		if e := r.Entries(); !reflect.DeepEqual(tt.entries, e) {
+			t.Errorf("bad report (%d, %q): want %#v, got %#v", i, tt.config, tt.entries, e)
+		}
+	}
+}
+
+func TestCheckWriteFiles(t *testing.T) {
+	tests := []struct {
+		config string
+
+		entries []Entry
+	}{
+		{},
+		{
+			config: "write_files:\n  - path: /valid",
+		},
+		{
+			config: "write_files:\n  - path: /tmp/usr/valid",
+		},
+		{
+			config:  "write_files:\n  - path: /usr/invalid",
+			entries: []Entry{{entryError, "file cannot be written to a read-only filesystem", 2}},
+		},
+		{
+			config:  "write-files:\n  - path: /tmp/../usr/invalid",
+			entries: []Entry{{entryError, "file cannot be written to a read-only filesystem", 2}},
+		},
+	}
+
+	for i, tt := range tests {
+		r := Report{}
+		n, err := parseCloudConfig([]byte(tt.config), &r)
+		if err != nil {
+			panic(err)
+		}
+		checkWriteFiles(n, &r)
+
+		if e := r.Entries(); !reflect.DeepEqual(tt.entries, e) {
+			t.Errorf("bad report (%d, %q): want %#v, got %#v", i, tt.config, tt.entries, e)
+		}
+	}
+}
+
+func TestCheckWriteFilesUnderCoreos(t *testing.T) {
+	tests := []struct {
+		config string
+
+		entries []Entry
+	}{
+		{},
+		{
+			config: "write_files:\n  - path: /hi",
+		},
+		{
+			config:  "coreos:\n  write_files:\n    - path: /hi",
+			entries: []Entry{{entryInfo, "write_files doesn't belong under coreos", 2}},
+		},
+		{
+			config:  "coreos:\n  write-files:\n    - path: /hyphen",
+			entries: []Entry{{entryInfo, "write_files doesn't belong under coreos", 2}},
+		},
+	}
+
+	for i, tt := range tests {
+		r := Report{}
+		n, err := parseCloudConfig([]byte(tt.config), &r)
+		if err != nil {
+			panic(err)
+		}
+		checkWriteFilesUnderCoreos(n, &r)
+
+		if e := r.Entries(); !reflect.DeepEqual(tt.entries, e) {
+			t.Errorf("bad report (%d, %q): want %#v, got %#v", i, tt.config, tt.entries, e)
+		}
+	}
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/validate/validate.go

@@ -0,0 +1,164 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validate
+
+import (
+	"errors"
+	"fmt"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"github.com/coreos/coreos-cloudinit/config"
+
+	"github.com/coreos/yaml"
+)
+
+var (
+	yamlLineError = regexp.MustCompile(`^YAML error: line (?P<line>[[:digit:]]+): (?P<msg>.*)$`)
+	yamlError     = regexp.MustCompile(`^YAML error: (?P<msg>.*)$`)
+)
+
+// Validate runs a series of validation tests against the given userdata and
+// returns a report detailing all of the issues. Presently, only cloud-configs
+// can be validated.
+func Validate(userdataBytes []byte) (Report, error) {
+	switch {
+	case len(userdataBytes) == 0:
+		return Report{}, nil
+	case config.IsScript(string(userdataBytes)):
+		return Report{}, nil
+	case config.IsIgnitionConfig(string(userdataBytes)):
+		return Report{}, nil
+	case config.IsCloudConfig(string(userdataBytes)):
+		return validateCloudConfig(userdataBytes, Rules)
+	default:
+		return Report{entries: []Entry{
+			Entry{kind: entryError, message: `must be "#cloud-config" or begin with "#!"`, line: 1},
+		}}, nil
+	}
+}
+
+// validateCloudConfig runs all of the validation rules in Rules and returns
+// the resulting report and any errors encountered.
+func validateCloudConfig(config []byte, rules []rule) (report Report, err error) {
+	defer func() {
+		if r := recover(); r != nil {
+			err = fmt.Errorf("%v", r)
+		}
+	}()
+
+	c, err := parseCloudConfig(config, &report)
+	if err != nil {
+		return report, err
+	}
+
+	for _, r := range rules {
+		r(c, &report)
+	}
+	return report, nil
+}
+
+// parseCloudConfig parses the provided config into a node structure and logs
+// any parsing issues into the provided report. Unrecoverable errors are
+// returned as an error.
+func parseCloudConfig(cfg []byte, report *Report) (node, error) {
+	yaml.UnmarshalMappingKeyTransform = func(nameIn string) (nameOut string) {
+		return nameIn
+	}
+	// unmarshal the config into an implicitly-typed form. The yaml library
+	// will implicitly convert types into their normalized form
+	// (e.g. 0744 -> 484, off -> false).
+	var weak map[interface{}]interface{}
+	if err := yaml.Unmarshal(cfg, &weak); err != nil {
+		matches := yamlLineError.FindStringSubmatch(err.Error())
+		if len(matches) == 3 {
+			line, err := strconv.Atoi(matches[1])
+			if err != nil {
+				return node{}, err
+			}
+			msg := matches[2]
+			report.Error(line, msg)
+			return node{}, nil
+		}
+
+		matches = yamlError.FindStringSubmatch(err.Error())
+		if len(matches) == 2 {
+			report.Error(1, matches[1])
+			return node{}, nil
+		}
+
+		return node{}, errors.New("couldn't parse yaml error")
+	}
+	w := NewNode(weak, NewContext(cfg))
+	w = normalizeNodeNames(w, report)
+
+	// unmarshal the config into the explicitly-typed form.
+	yaml.UnmarshalMappingKeyTransform = func(nameIn string) (nameOut string) {
+		return strings.Replace(nameIn, "-", "_", -1)
+	}
+	var strong config.CloudConfig
+	if err := yaml.Unmarshal([]byte(cfg), &strong); err != nil {
+		return node{}, err
+	}
+	s := NewNode(strong, NewContext(cfg))
+
+	// coerceNodes weak nodes and strong nodes. strong nodes replace weak nodes
+	// if they are compatible types (this happens when the yaml library
+	// converts the input).
+	// (e.g. weak 484 is replaced by strong 0744, weak 4 is not replaced by
+	// strong false)
+	return coerceNodes(w, s), nil
+}
+
+// coerceNodes recursively evaluates two nodes, returning a new node containing
+// either the weak or strong node's value and its recursively processed
+// children. The strong node's value is used if the two nodes are leafs, are
+// both valid, and are compatible types (defined by isCompatible()). The weak
+// node is returned in all other cases. coerceNodes is used to counteract the
+// effects of yaml's automatic type conversion. The weak node is the one
+// resulting from unmarshalling into an empty interface{} (the type is
+// inferred). The strong node is the one resulting from unmarshalling into a
+// struct. If the two nodes are of compatible types, the yaml library correctly
+// parsed the value into the strongly typed unmarshalling. In this case, we
+// prefer the strong node because its actually the type we are expecting.
+func coerceNodes(w, s node) node {
+	n := w
+	n.children = nil
+	if len(w.children) == 0 && len(s.children) == 0 &&
+		w.IsValid() && s.IsValid() &&
+		isCompatible(w.Kind(), s.Kind()) {
+		n.Value = s.Value
+	}
+
+	for _, cw := range w.children {
+		n.children = append(n.children, coerceNodes(cw, s.Child(cw.name)))
+	}
+	return n
+}
+
+// normalizeNodeNames replaces all occurences of '-' with '_' within key names
+// and makes a note of each replacement in the report.
+func normalizeNodeNames(node node, report *Report) node {
+	if strings.Contains(node.name, "-") {
+		// TODO(crawford): Enable this message once the new validator hits stable.
+		//report.Info(node.line, fmt.Sprintf("%q uses '-' instead of '_'", node.name))
+		node.name = strings.Replace(node.name, "-", "_", -1)
+	}
+	for i := range node.children {
+		node.children[i] = normalizeNodeNames(node.children[i], report)
+	}
+	return node
+}

Godeps/_workspace/src/github.com/coreos/coreos-cloudinit/config/validate/validate_test.go

@@ -0,0 +1,177 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validate
+
+import (
+	"errors"
+	"reflect"
+	"testing"
+)
+
+func TestParseCloudConfig(t *testing.T) {
+	tests := []struct {
+		config string
+
+		entries []Entry
+	}{
+		{},
+		{
+			config: "	",
+			entries: []Entry{{entryError, "found character that cannot start any token", 1}},
+		},
+		{
+			config:  "a:\na",
+			entries: []Entry{{entryError, "could not find expected ':'", 2}},
+		},
+		{
+			config:  "#hello\na:\na",
+			entries: []Entry{{entryError, "could not find expected ':'", 3}},
+		},
+	}
+
+	for _, tt := range tests {
+		r := Report{}
+		parseCloudConfig([]byte(tt.config), &r)
+
+		if e := r.Entries(); !reflect.DeepEqual(tt.entries, e) {
+			t.Errorf("bad report (%s): want %#v, got %#v", tt.config, tt.entries, e)
+		}
+	}
+}
+
+func TestValidateCloudConfig(t *testing.T) {
+	tests := []struct {
+		config string
+		rules  []rule
+
+		report Report
+		err    error
+	}{
+		{
+			rules: []rule{func(_ node, _ *Report) { panic("something happened") }},
+			err:   errors.New("something happened"),
+		},
+		{
+			config: "write_files:\n  - permissions: 0744",
+			rules:  Rules,
+		},
+		{
+			config: "write_files:\n  - permissions: '0744'",
+			rules:  Rules,
+		},
+		{
+			config: "write_files:\n  - permissions: 744",
+			rules:  Rules,
+		},
+		{
+			config: "write_files:\n  - permissions: '744'",
+			rules:  Rules,
+		},
+		{
+			config: "coreos:\n  update:\n    reboot-strategy: off",
+			rules:  Rules,
+		},
+		{
+			config: "coreos:\n  update:\n    reboot-strategy: false",
+			rules:  Rules,
+			report: Report{entries: []Entry{{entryError, "invalid value false", 3}}},
+		},
+	}
+
+	for _, tt := range tests {
+		r, err := validateCloudConfig([]byte(tt.config), tt.rules)
+		if !reflect.DeepEqual(tt.err, err) {
+			t.Errorf("bad error (%s): want %v, got %v", tt.config, tt.err, err)
+		}
+		if !reflect.DeepEqual(tt.report, r) {
+			t.Errorf("bad report (%s): want %+v, got %+v", tt.config, tt.report, r)
+		}
+	}
+}
+
+func TestValidate(t *testing.T) {
+	tests := []struct {
+		config string
+
+		report Report
+	}{
+		{},
+		{
+			config: "#!/bin/bash\necho hey",
+		},
+		{
+			config: "{}",
+			report: Report{entries: []Entry{{entryError, `must be "#cloud-config" or begin with "#!"`, 1}}},
+		},
+		{
+			config: `{"ignitionVersion":0}`,
+		},
+		{
+			config: `{"ignitionVersion":1}`,
+		},
+	}
+
+	for i, tt := range tests {
+		r, err := Validate([]byte(tt.config))
+		if err != nil {
+			t.Errorf("bad error (case #%d): want %v, got %v", i, nil, err)
+		}
+		if !reflect.DeepEqual(tt.report, r) {
+			t.Errorf("bad report (case #%d): want %+v, got %+v", i, tt.report, r)
+		}
+	}
+}
+
+func BenchmarkValidate(b *testing.B) {
+	config := `#cloud-config
+hostname: test
+
+coreos:
+  etcd:
+    name:      node001
+    discovery: https://discovery.etcd.io/disco
+    addr:      $public_ipv4:4001
+    peer-addr: $private_ipv4:7001
+  fleet:
+    verbosity: 2
+    metadata:  "hi"
+  update:
+    reboot-strategy: off
+  units:
+    - name:    hi.service
+      command: start
+      enable:  true
+    - name:    bye.service
+      command: stop
+
+ssh_authorized_keys:
+  - ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC0g+ZTxC7weoIJLUafOgrm+h...
+  - ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC0g+ZTxC7weoIJLUafOgrm+h...
+
+users:
+  - name: me
+
+write_files:
+  - path: /etc/yes
+    content: "Hi"
+
+manage_etc_hosts: localhost`
+
+	for i := 0; i < b.N; i++ {
+		if _, err := Validate([]byte(config)); err != nil {
+			panic(err)
+		}
+	}
+}

Godeps/_workspace/src/github.com/coreos/yaml/LICENSE

@@ -0,0 +1,188 @@
+
+Copyright (c) 2011-2014 - Canonical Inc.
+
+This software is licensed under the LGPLv3, included below.
+
+As a special exception to the GNU Lesser General Public License version 3
+("LGPL3"), the copyright holders of this Library give you permission to
+convey to a third party a Combined Work that links statically or dynamically
+to this Library without providing any Minimal Corresponding Source or
+Minimal Application Code as set out in 4d or providing the installation
+information set out in section 4e, provided that you comply with the other
+provisions of LGPL3 and provided that you meet, for the Application the
+terms and conditions of the license(s) which apply to the Application.
+
+Except as stated in this special exception, the provisions of LGPL3 will
+continue to comply in full to this Library. If you modify this Library, you
+may apply this exception to your version of this Library, but you are not
+obliged to do so. If you do not wish to do so, delete this exception
+statement from your version. This exception does not (and cannot) modify any
+license terms which apply to the Application, with which you must still
+comply.
+
+
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.

Godeps/_workspace/src/github.com/coreos/yaml/LICENSE.libyaml

@@ -0,0 +1,31 @@
+The following files were ported to Go from C files of libyaml, and thus
+are still covered by their original copyright and license:
+
+    apic.go
+    emitterc.go
+    parserc.go
+    readerc.go
+    scannerc.go
+    writerc.go
+    yamlh.go
+    yamlprivateh.go
+
+Copyright (c) 2006 Kirill Simonov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Godeps/_workspace/src/github.com/coreos/yaml/README.md

@@ -0,0 +1,131 @@
+Note: This is a fork of https://github.com/go-yaml/yaml. The following README
+doesn't necessarily apply to this fork.
+
+# YAML support for the Go language
+
+Introduction
+------------
+
+The yaml package enables Go programs to comfortably encode and decode YAML
+values. It was developed within [Canonical](https://www.canonical.com) as
+part of the [juju](https://juju.ubuntu.com) project, and is based on a
+pure Go port of the well-known [libyaml](http://pyyaml.org/wiki/LibYAML)
+C library to parse and generate YAML data quickly and reliably.
+
+Compatibility
+-------------
+
+The yaml package supports most of YAML 1.1 and 1.2, including support for
+anchors, tags, map merging, etc. Multi-document unmarshalling is not yet
+implemented, and base-60 floats from YAML 1.1 are purposefully not
+supported since they're a poor design and are gone in YAML 1.2.
+
+Installation and usage
+----------------------
+
+The import path for the package is *gopkg.in/yaml.v1*.
+
+To install it, run:
+
+    go get gopkg.in/yaml.v1
+
+API documentation
+-----------------
+
+If opened in a browser, the import path itself leads to the API documentation:
+
+  * [https://gopkg.in/yaml.v1](https://gopkg.in/yaml.v1)
+
+API stability
+-------------
+
+The package API for yaml v1 will remain stable as described in [gopkg.in](https://gopkg.in).
+
+
+License
+-------
+
+The yaml package is licensed under the LGPL with an exception that allows it to be linked statically. Please see the LICENSE file for details.
+
+
+Example
+-------
+
+```Go
+package main
+
+import (
+        "fmt"
+        "log"
+
+        "gopkg.in/yaml.v1"
+)
+
+var data = `
+a: Easy!
+b:
+  c: 2
+  d: [3, 4]
+`
+
+type T struct {
+        A string
+        B struct{C int; D []int ",flow"}
+}
+
+func main() {
+        t := T{}
+    
+        err := yaml.Unmarshal([]byte(data), &t)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- t:\n%v\n\n", t)
+    
+        d, err := yaml.Marshal(&t)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- t dump:\n%s\n\n", string(d))
+    
+        m := make(map[interface{}]interface{})
+    
+        err = yaml.Unmarshal([]byte(data), &m)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- m:\n%v\n\n", m)
+    
+        d, err = yaml.Marshal(&m)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- m dump:\n%s\n\n", string(d))
+}
+```
+
+This example will generate the following output:
+
+```
+--- t:
+{Easy! {2 [3 4]}}
+
+--- t dump:
+a: Easy!
+b:
+  c: 2
+  d: [3, 4]
+
+
+--- m:
+map[a:Easy! b:map[c:2 d:[3 4]]]
+
+--- m dump:
+a: Easy!
+b:
+  c: 2
+  d:
+  - 3
+  - 4
+```
+

Godeps/_workspace/src/github.com/coreos/yaml/apic.go

@@ -0,0 +1,742 @@
+package yaml
+
+import (
+	"io"
+	"os"
+)
+
+func yaml_insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) {
+	//fmt.Println("yaml_insert_token", "pos:", pos, "typ:", token.typ, "head:", parser.tokens_head, "len:", len(parser.tokens))
+
+	// Check if we can move the queue at the beginning of the buffer.
+	if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) {
+		if parser.tokens_head != len(parser.tokens) {
+			copy(parser.tokens, parser.tokens[parser.tokens_head:])
+		}
+		parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head]
+		parser.tokens_head = 0
+	}
+	parser.tokens = append(parser.tokens, *token)
+	if pos < 0 {
+		return
+	}
+	copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:])
+	parser.tokens[parser.tokens_head+pos] = *token
+}
+
+// Create a new parser object.
+func yaml_parser_initialize(parser *yaml_parser_t) bool {
+	*parser = yaml_parser_t{
+		raw_buffer: make([]byte, 0, input_raw_buffer_size),
+		buffer:     make([]byte, 0, input_buffer_size),
+	}
+	return true
+}
+
+// Destroy a parser object.
+func yaml_parser_delete(parser *yaml_parser_t) {
+	*parser = yaml_parser_t{}
+}
+
+// String read handler.
+func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
+	if parser.input_pos == len(parser.input) {
+		return 0, io.EOF
+	}
+	n = copy(buffer, parser.input[parser.input_pos:])
+	parser.input_pos += n
+	return n, nil
+}
+
+// File read handler.
+func yaml_file_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
+	return parser.input_file.Read(buffer)
+}
+
+// Set a string input.
+func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) {
+	if parser.read_handler != nil {
+		panic("must set the input source only once")
+	}
+	parser.read_handler = yaml_string_read_handler
+	parser.input = input
+	parser.input_pos = 0
+}
+
+// Set a file input.
+func yaml_parser_set_input_file(parser *yaml_parser_t, file *os.File) {
+	if parser.read_handler != nil {
+		panic("must set the input source only once")
+	}
+	parser.read_handler = yaml_file_read_handler
+	parser.input_file = file
+}
+
+// Set the source encoding.
+func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) {
+	if parser.encoding != yaml_ANY_ENCODING {
+		panic("must set the encoding only once")
+	}
+	parser.encoding = encoding
+}
+
+// Create a new emitter object.
+func yaml_emitter_initialize(emitter *yaml_emitter_t) bool {
+	*emitter = yaml_emitter_t{
+		buffer:     make([]byte, output_buffer_size),
+		raw_buffer: make([]byte, 0, output_raw_buffer_size),
+		states:     make([]yaml_emitter_state_t, 0, initial_stack_size),
+		events:     make([]yaml_event_t, 0, initial_queue_size),
+	}
+	return true
+}
+
+// Destroy an emitter object.
+func yaml_emitter_delete(emitter *yaml_emitter_t) {
+	*emitter = yaml_emitter_t{}
+}
+
+// String write handler.
+func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
+	*emitter.output_buffer = append(*emitter.output_buffer, buffer...)
+	return nil
+}
+
+// File write handler.
+func yaml_file_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
+	_, err := emitter.output_file.Write(buffer)
+	return err
+}
+
+// Set a string output.
+func yaml_emitter_set_output_string(emitter *yaml_emitter_t, output_buffer *[]byte) {
+	if emitter.write_handler != nil {
+		panic("must set the output target only once")
+	}
+	emitter.write_handler = yaml_string_write_handler
+	emitter.output_buffer = output_buffer
+}
+
+// Set a file output.
+func yaml_emitter_set_output_file(emitter *yaml_emitter_t, file io.Writer) {
+	if emitter.write_handler != nil {
+		panic("must set the output target only once")
+	}
+	emitter.write_handler = yaml_file_write_handler
+	emitter.output_file = file
+}
+
+// Set the output encoding.
+func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) {
+	if emitter.encoding != yaml_ANY_ENCODING {
+		panic("must set the output encoding only once")
+	}
+	emitter.encoding = encoding
+}
+
+// Set the canonical output style.
+func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) {
+	emitter.canonical = canonical
+}
+
+//// Set the indentation increment.
+func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) {
+	if indent < 2 || indent > 9 {
+		indent = 2
+	}
+	emitter.best_indent = indent
+}
+
+// Set the preferred line width.
+func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) {
+	if width < 0 {
+		width = -1
+	}
+	emitter.best_width = width
+}
+
+// Set if unescaped non-ASCII characters are allowed.
+func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) {
+	emitter.unicode = unicode
+}
+
+// Set the preferred line break character.
+func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) {
+	emitter.line_break = line_break
+}
+
+///*
+// * Destroy a token object.
+// */
+//
+//YAML_DECLARE(void)
+//yaml_token_delete(yaml_token_t *token)
+//{
+//    assert(token);  // Non-NULL token object expected.
+//
+//    switch (token.type)
+//    {
+//        case YAML_TAG_DIRECTIVE_TOKEN:
+//            yaml_free(token.data.tag_directive.handle);
+//            yaml_free(token.data.tag_directive.prefix);
+//            break;
+//
+//        case YAML_ALIAS_TOKEN:
+//            yaml_free(token.data.alias.value);
+//            break;
+//
+//        case YAML_ANCHOR_TOKEN:
+//            yaml_free(token.data.anchor.value);
+//            break;
+//
+//        case YAML_TAG_TOKEN:
+//            yaml_free(token.data.tag.handle);
+//            yaml_free(token.data.tag.suffix);
+//            break;
+//
+//        case YAML_SCALAR_TOKEN:
+//            yaml_free(token.data.scalar.value);
+//            break;
+//
+//        default:
+//            break;
+//    }
+//
+//    memset(token, 0, sizeof(yaml_token_t));
+//}
+//
+///*
+// * Check if a string is a valid UTF-8 sequence.
+// *
+// * Check 'reader.c' for more details on UTF-8 encoding.
+// */
+//
+//static int
+//yaml_check_utf8(yaml_char_t *start, size_t length)
+//{
+//    yaml_char_t *end = start+length;
+//    yaml_char_t *pointer = start;
+//
+//    while (pointer < end) {
+//        unsigned char octet;
+//        unsigned int width;
+//        unsigned int value;
+//        size_t k;
+//
+//        octet = pointer[0];
+//        width = (octet & 0x80) == 0x00 ? 1 :
+//                (octet & 0xE0) == 0xC0 ? 2 :
+//                (octet & 0xF0) == 0xE0 ? 3 :
+//                (octet & 0xF8) == 0xF0 ? 4 : 0;
+//        value = (octet & 0x80) == 0x00 ? octet & 0x7F :
+//                (octet & 0xE0) == 0xC0 ? octet & 0x1F :
+//                (octet & 0xF0) == 0xE0 ? octet & 0x0F :
+//                (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
+//        if (!width) return 0;
+//        if (pointer+width > end) return 0;
+//        for (k = 1; k < width; k ++) {
+//            octet = pointer[k];
+//            if ((octet & 0xC0) != 0x80) return 0;
+//            value = (value << 6) + (octet & 0x3F);
+//        }
+//        if (!((width == 1) ||
+//            (width == 2 && value >= 0x80) ||
+//            (width == 3 && value >= 0x800) ||
+//            (width == 4 && value >= 0x10000))) return 0;
+//
+//        pointer += width;
+//    }
+//
+//    return 1;
+//}
+//
+
+// Create STREAM-START.
+func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) bool {
+	*event = yaml_event_t{
+		typ:      yaml_STREAM_START_EVENT,
+		encoding: encoding,
+	}
+	return true
+}
+
+// Create STREAM-END.
+func yaml_stream_end_event_initialize(event *yaml_event_t) bool {
+	*event = yaml_event_t{
+		typ: yaml_STREAM_END_EVENT,
+	}
+	return true
+}
+
+// Create DOCUMENT-START.
+func yaml_document_start_event_initialize(event *yaml_event_t, version_directive *yaml_version_directive_t,
+	tag_directives []yaml_tag_directive_t, implicit bool) bool {
+	*event = yaml_event_t{
+		typ:               yaml_DOCUMENT_START_EVENT,
+		version_directive: version_directive,
+		tag_directives:    tag_directives,
+		implicit:          implicit,
+	}
+	return true
+}
+
+// Create DOCUMENT-END.
+func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) bool {
+	*event = yaml_event_t{
+		typ:      yaml_DOCUMENT_END_EVENT,
+		implicit: implicit,
+	}
+	return true
+}
+
+///*
+// * Create ALIAS.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_alias_event_initialize(event *yaml_event_t, anchor *yaml_char_t)
+//{
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    anchor_copy *yaml_char_t = NULL
+//
+//    assert(event) // Non-NULL event object is expected.
+//    assert(anchor) // Non-NULL anchor is expected.
+//
+//    if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0
+//
+//    anchor_copy = yaml_strdup(anchor)
+//    if (!anchor_copy)
+//        return 0
+//
+//    ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark)
+//
+//    return 1
+//}
+
+// Create SCALAR.
+func yaml_scalar_event_initialize(event *yaml_event_t, anchor, tag, value []byte, plain_implicit, quoted_implicit bool, style yaml_scalar_style_t) bool {
+	*event = yaml_event_t{
+		typ:             yaml_SCALAR_EVENT,
+		anchor:          anchor,
+		tag:             tag,
+		value:           value,
+		implicit:        plain_implicit,
+		quoted_implicit: quoted_implicit,
+		style:           yaml_style_t(style),
+	}
+	return true
+}
+
+// Create SEQUENCE-START.
+func yaml_sequence_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_sequence_style_t) bool {
+	*event = yaml_event_t{
+		typ:      yaml_SEQUENCE_START_EVENT,
+		anchor:   anchor,
+		tag:      tag,
+		implicit: implicit,
+		style:    yaml_style_t(style),
+	}
+	return true
+}
+
+// Create SEQUENCE-END.
+func yaml_sequence_end_event_initialize(event *yaml_event_t) bool {
+	*event = yaml_event_t{
+		typ: yaml_SEQUENCE_END_EVENT,
+	}
+	return true
+}
+
+// Create MAPPING-START.
+func yaml_mapping_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_mapping_style_t) bool {
+	*event = yaml_event_t{
+		typ:      yaml_MAPPING_START_EVENT,
+		anchor:   anchor,
+		tag:      tag,
+		implicit: implicit,
+		style:    yaml_style_t(style),
+	}
+	return true
+}
+
+// Create MAPPING-END.
+func yaml_mapping_end_event_initialize(event *yaml_event_t) bool {
+	*event = yaml_event_t{
+		typ: yaml_MAPPING_END_EVENT,
+	}
+	return true
+}
+
+// Destroy an event object.
+func yaml_event_delete(event *yaml_event_t) {
+	*event = yaml_event_t{}
+}
+
+///*
+// * Create a document object.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_initialize(document *yaml_document_t,
+//        version_directive *yaml_version_directive_t,
+//        tag_directives_start *yaml_tag_directive_t,
+//        tag_directives_end *yaml_tag_directive_t,
+//        start_implicit int, end_implicit int)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    struct {
+//        start *yaml_node_t
+//        end *yaml_node_t
+//        top *yaml_node_t
+//    } nodes = { NULL, NULL, NULL }
+//    version_directive_copy *yaml_version_directive_t = NULL
+//    struct {
+//        start *yaml_tag_directive_t
+//        end *yaml_tag_directive_t
+//        top *yaml_tag_directive_t
+//    } tag_directives_copy = { NULL, NULL, NULL }
+//    value yaml_tag_directive_t = { NULL, NULL }
+//    mark yaml_mark_t = { 0, 0, 0 }
+//
+//    assert(document) // Non-NULL document object is expected.
+//    assert((tag_directives_start && tag_directives_end) ||
+//            (tag_directives_start == tag_directives_end))
+//                            // Valid tag directives are expected.
+//
+//    if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error
+//
+//    if (version_directive) {
+//        version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t))
+//        if (!version_directive_copy) goto error
+//        version_directive_copy.major = version_directive.major
+//        version_directive_copy.minor = version_directive.minor
+//    }
+//
+//    if (tag_directives_start != tag_directives_end) {
+//        tag_directive *yaml_tag_directive_t
+//        if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE))
+//            goto error
+//        for (tag_directive = tag_directives_start
+//                tag_directive != tag_directives_end; tag_directive ++) {
+//            assert(tag_directive.handle)
+//            assert(tag_directive.prefix)
+//            if (!yaml_check_utf8(tag_directive.handle,
+//                        strlen((char *)tag_directive.handle)))
+//                goto error
+//            if (!yaml_check_utf8(tag_directive.prefix,
+//                        strlen((char *)tag_directive.prefix)))
+//                goto error
+//            value.handle = yaml_strdup(tag_directive.handle)
+//            value.prefix = yaml_strdup(tag_directive.prefix)
+//            if (!value.handle || !value.prefix) goto error
+//            if (!PUSH(&context, tag_directives_copy, value))
+//                goto error
+//            value.handle = NULL
+//            value.prefix = NULL
+//        }
+//    }
+//
+//    DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,
+//            tag_directives_copy.start, tag_directives_copy.top,
+//            start_implicit, end_implicit, mark, mark)
+//
+//    return 1
+//
+//error:
+//    STACK_DEL(&context, nodes)
+//    yaml_free(version_directive_copy)
+//    while (!STACK_EMPTY(&context, tag_directives_copy)) {
+//        value yaml_tag_directive_t = POP(&context, tag_directives_copy)
+//        yaml_free(value.handle)
+//        yaml_free(value.prefix)
+//    }
+//    STACK_DEL(&context, tag_directives_copy)
+//    yaml_free(value.handle)
+//    yaml_free(value.prefix)
+//
+//    return 0
+//}
+//
+///*
+// * Destroy a document object.
+// */
+//
+//YAML_DECLARE(void)
+//yaml_document_delete(document *yaml_document_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    tag_directive *yaml_tag_directive_t
+//
+//    context.error = YAML_NO_ERROR // Eliminate a compliler warning.
+//
+//    assert(document) // Non-NULL document object is expected.
+//
+//    while (!STACK_EMPTY(&context, document.nodes)) {
+//        node yaml_node_t = POP(&context, document.nodes)
+//        yaml_free(node.tag)
+//        switch (node.type) {
+//            case YAML_SCALAR_NODE:
+//                yaml_free(node.data.scalar.value)
+//                break
+//            case YAML_SEQUENCE_NODE:
+//                STACK_DEL(&context, node.data.sequence.items)
+//                break
+//            case YAML_MAPPING_NODE:
+//                STACK_DEL(&context, node.data.mapping.pairs)
+//                break
+//            default:
+//                assert(0) // Should not happen.
+//        }
+//    }
+//    STACK_DEL(&context, document.nodes)
+//
+//    yaml_free(document.version_directive)
+//    for (tag_directive = document.tag_directives.start
+//            tag_directive != document.tag_directives.end
+//            tag_directive++) {
+//        yaml_free(tag_directive.handle)
+//        yaml_free(tag_directive.prefix)
+//    }
+//    yaml_free(document.tag_directives.start)
+//
+//    memset(document, 0, sizeof(yaml_document_t))
+//}
+//
+///**
+// * Get a document node.
+// */
+//
+//YAML_DECLARE(yaml_node_t *)
+//yaml_document_get_node(document *yaml_document_t, index int)
+//{
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (index > 0 && document.nodes.start + index <= document.nodes.top) {
+//        return document.nodes.start + index - 1
+//    }
+//    return NULL
+//}
+//
+///**
+// * Get the root object.
+// */
+//
+//YAML_DECLARE(yaml_node_t *)
+//yaml_document_get_root_node(document *yaml_document_t)
+//{
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (document.nodes.top != document.nodes.start) {
+//        return document.nodes.start
+//    }
+//    return NULL
+//}
+//
+///*
+// * Add a scalar node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_scalar(document *yaml_document_t,
+//        tag *yaml_char_t, value *yaml_char_t, length int,
+//        style yaml_scalar_style_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    tag_copy *yaml_char_t = NULL
+//    value_copy *yaml_char_t = NULL
+//    node yaml_node_t
+//
+//    assert(document) // Non-NULL document object is expected.
+//    assert(value) // Non-NULL value is expected.
+//
+//    if (!tag) {
+//        tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG
+//    }
+//
+//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+//    tag_copy = yaml_strdup(tag)
+//    if (!tag_copy) goto error
+//
+//    if (length < 0) {
+//        length = strlen((char *)value)
+//    }
+//
+//    if (!yaml_check_utf8(value, length)) goto error
+//    value_copy = yaml_malloc(length+1)
+//    if (!value_copy) goto error
+//    memcpy(value_copy, value, length)
+//    value_copy[length] = '\0'
+//
+//    SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark)
+//    if (!PUSH(&context, document.nodes, node)) goto error
+//
+//    return document.nodes.top - document.nodes.start
+//
+//error:
+//    yaml_free(tag_copy)
+//    yaml_free(value_copy)
+//
+//    return 0
+//}
+//
+///*
+// * Add a sequence node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_sequence(document *yaml_document_t,
+//        tag *yaml_char_t, style yaml_sequence_style_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    tag_copy *yaml_char_t = NULL
+//    struct {
+//        start *yaml_node_item_t
+//        end *yaml_node_item_t
+//        top *yaml_node_item_t
+//    } items = { NULL, NULL, NULL }
+//    node yaml_node_t
+//
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (!tag) {
+//        tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG
+//    }
+//
+//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+//    tag_copy = yaml_strdup(tag)
+//    if (!tag_copy) goto error
+//
+//    if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error
+//
+//    SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,
+//            style, mark, mark)
+//    if (!PUSH(&context, document.nodes, node)) goto error
+//
+//    return document.nodes.top - document.nodes.start
+//
+//error:
+//    STACK_DEL(&context, items)
+//    yaml_free(tag_copy)
+//
+//    return 0
+//}
+//
+///*
+// * Add a mapping node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_mapping(document *yaml_document_t,
+//        tag *yaml_char_t, style yaml_mapping_style_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    tag_copy *yaml_char_t = NULL
+//    struct {
+//        start *yaml_node_pair_t
+//        end *yaml_node_pair_t
+//        top *yaml_node_pair_t
+//    } pairs = { NULL, NULL, NULL }
+//    node yaml_node_t
+//
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (!tag) {
+//        tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG
+//    }
+//
+//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+//    tag_copy = yaml_strdup(tag)
+//    if (!tag_copy) goto error
+//
+//    if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error
+//
+//    MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,
+//            style, mark, mark)
+//    if (!PUSH(&context, document.nodes, node)) goto error
+//
+//    return document.nodes.top - document.nodes.start
+//
+//error:
+//    STACK_DEL(&context, pairs)
+//    yaml_free(tag_copy)
+//
+//    return 0
+//}
+//
+///*
+// * Append an item to a sequence node.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_append_sequence_item(document *yaml_document_t,
+//        sequence int, item int)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//
+//    assert(document) // Non-NULL document is required.
+//    assert(sequence > 0
+//            && document.nodes.start + sequence <= document.nodes.top)
+//                            // Valid sequence id is required.
+//    assert(document.nodes.start[sequence-1].type == YAML_SEQUENCE_NODE)
+//                            // A sequence node is required.
+//    assert(item > 0 && document.nodes.start + item <= document.nodes.top)
+//                            // Valid item id is required.
+//
+//    if (!PUSH(&context,
+//                document.nodes.start[sequence-1].data.sequence.items, item))
+//        return 0
+//
+//    return 1
+//}
+//
+///*
+// * Append a pair of a key and a value to a mapping node.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_append_mapping_pair(document *yaml_document_t,
+//        mapping int, key int, value int)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//
+//    pair yaml_node_pair_t
+//
+//    assert(document) // Non-NULL document is required.
+//    assert(mapping > 0
+//            && document.nodes.start + mapping <= document.nodes.top)
+//                            // Valid mapping id is required.
+//    assert(document.nodes.start[mapping-1].type == YAML_MAPPING_NODE)
+//                            // A mapping node is required.
+//    assert(key > 0 && document.nodes.start + key <= document.nodes.top)
+//                            // Valid key id is required.
+//    assert(value > 0 && document.nodes.start + value <= document.nodes.top)
+//                            // Valid value id is required.
+//
+//    pair.key = key
+//    pair.value = value
+//
+//    if (!PUSH(&context,
+//                document.nodes.start[mapping-1].data.mapping.pairs, pair))
+//        return 0
+//
+//    return 1
+//}
+//
+//

Godeps/_workspace/src/github.com/coreos/yaml/decode.go

@@ -0,0 +1,571 @@
+package yaml
+
+import (
+	"encoding/base64"
+	"fmt"
+	"reflect"
+	"strconv"
+	"time"
+)
+
+const (
+	documentNode = 1 << iota
+	mappingNode
+	sequenceNode
+	scalarNode
+	aliasNode
+)
+
+type node struct {
+	kind         int
+	line, column int
+	tag          string
+	value        string
+	implicit     bool
+	children     []*node
+	anchors      map[string]*node
+}
+
+// ----------------------------------------------------------------------------
+// Parser, produces a node tree out of a libyaml event stream.
+
+type parser struct {
+	parser    yaml_parser_t
+	event     yaml_event_t
+	doc       *node
+	transform transformString
+}
+
+func newParser(b []byte, t transformString) *parser {
+	p := parser{transform: t}
+
+	if !yaml_parser_initialize(&p.parser) {
+		panic("Failed to initialize YAML emitter")
+	}
+
+	if len(b) == 0 {
+		b = []byte{'\n'}
+	}
+
+	yaml_parser_set_input_string(&p.parser, b)
+
+	p.skip()
+	if p.event.typ != yaml_STREAM_START_EVENT {
+		panic("Expected stream start event, got " + strconv.Itoa(int(p.event.typ)))
+	}
+	p.skip()
+	return &p
+}
+
+func (p *parser) destroy() {
+	if p.event.typ != yaml_NO_EVENT {
+		yaml_event_delete(&p.event)
+	}
+	yaml_parser_delete(&p.parser)
+}
+
+func (p *parser) skip() {
+	if p.event.typ != yaml_NO_EVENT {
+		if p.event.typ == yaml_STREAM_END_EVENT {
+			fail("Attempted to go past the end of stream. Corrupted value?")
+		}
+		yaml_event_delete(&p.event)
+	}
+	if !yaml_parser_parse(&p.parser, &p.event) {
+		p.fail()
+	}
+}
+
+func (p *parser) fail() {
+	var where string
+	var line int
+	if p.parser.problem_mark.line != 0 {
+		line = p.parser.problem_mark.line
+	} else if p.parser.context_mark.line != 0 {
+		line = p.parser.context_mark.line
+	}
+	if line != 0 {
+		where = "line " + strconv.Itoa(line) + ": "
+	}
+	var msg string
+	if len(p.parser.problem) > 0 {
+		msg = p.parser.problem
+	} else {
+		msg = "Unknown problem parsing YAML content"
+	}
+	fail(where + msg)
+}
+
+func (p *parser) anchor(n *node, anchor []byte) {
+	if anchor != nil {
+		p.doc.anchors[string(anchor)] = n
+	}
+}
+
+func (p *parser) parse() *node {
+	switch p.event.typ {
+	case yaml_SCALAR_EVENT:
+		return p.scalar()
+	case yaml_ALIAS_EVENT:
+		return p.alias()
+	case yaml_MAPPING_START_EVENT:
+		return p.mapping()
+	case yaml_SEQUENCE_START_EVENT:
+		return p.sequence()
+	case yaml_DOCUMENT_START_EVENT:
+		return p.document()
+	case yaml_STREAM_END_EVENT:
+		// Happens when attempting to decode an empty buffer.
+		return nil
+	default:
+		panic("Attempted to parse unknown event: " + strconv.Itoa(int(p.event.typ)))
+	}
+	panic("unreachable")
+}
+
+func (p *parser) node(kind int) *node {
+	return &node{
+		kind:   kind,
+		line:   p.event.start_mark.line,
+		column: p.event.start_mark.column,
+	}
+}
+
+func (p *parser) document() *node {
+	n := p.node(documentNode)
+	n.anchors = make(map[string]*node)
+	p.doc = n
+	p.skip()
+	n.children = append(n.children, p.parse())
+	if p.event.typ != yaml_DOCUMENT_END_EVENT {
+		panic("Expected end of document event but got " + strconv.Itoa(int(p.event.typ)))
+	}
+	p.skip()
+	return n
+}
+
+func (p *parser) alias() *node {
+	n := p.node(aliasNode)
+	n.value = string(p.event.anchor)
+	p.skip()
+	return n
+}
+
+func (p *parser) scalar() *node {
+	n := p.node(scalarNode)
+	n.value = string(p.event.value)
+	n.tag = string(p.event.tag)
+	n.implicit = p.event.implicit
+	p.anchor(n, p.event.anchor)
+	p.skip()
+	return n
+}
+
+func (p *parser) sequence() *node {
+	n := p.node(sequenceNode)
+	p.anchor(n, p.event.anchor)
+	p.skip()
+	for p.event.typ != yaml_SEQUENCE_END_EVENT {
+		n.children = append(n.children, p.parse())
+	}
+	p.skip()
+	return n
+}
+
+func (p *parser) mapping() *node {
+	n := p.node(mappingNode)
+	p.anchor(n, p.event.anchor)
+	p.skip()
+	for p.event.typ != yaml_MAPPING_END_EVENT {
+		key := p.parse()
+		key.value = p.transform(key.value)
+		value := p.parse()
+		n.children = append(n.children, key, value)
+	}
+	p.skip()
+	return n
+}
+
+// ----------------------------------------------------------------------------
+// Decoder, unmarshals a node into a provided value.
+
+type decoder struct {
+	doc     *node
+	aliases map[string]bool
+}
+
+func newDecoder() *decoder {
+	d := &decoder{}
+	d.aliases = make(map[string]bool)
+	return d
+}
+
+// d.setter deals with setters and pointer dereferencing and initialization.
+//
+// It's a slightly convoluted case to handle properly:
+//
+// - nil pointers should be initialized, unless being set to nil
+// - we don't know at this point yet what's the value to SetYAML() with.
+// - we can't separate pointer deref/init and setter checking, because
+//   a setter may be found while going down a pointer chain.
+//
+// Thus, here is how it takes care of it:
+//
+// - out is provided as a pointer, so that it can be replaced.
+// - when looking at a non-setter ptr, *out=ptr.Elem(), unless tag=!!null
+// - when a setter is found, *out=interface{}, and a set() function is
+//   returned to call SetYAML() with the value of *out once it's defined.
+//
+func (d *decoder) setter(tag string, out *reflect.Value, good *bool) (set func()) {
+	if (*out).Kind() != reflect.Ptr && (*out).CanAddr() {
+		setter, _ := (*out).Addr().Interface().(Setter)
+		if setter != nil {
+			var arg interface{}
+			*out = reflect.ValueOf(&arg).Elem()
+			return func() {
+				*good = setter.SetYAML(shortTag(tag), arg)
+			}
+		}
+	}
+	again := true
+	for again {
+		again = false
+		setter, _ := (*out).Interface().(Setter)
+		if tag != yaml_NULL_TAG || setter != nil {
+			if pv := (*out); pv.Kind() == reflect.Ptr {
+				if pv.IsNil() {
+					*out = reflect.New(pv.Type().Elem()).Elem()
+					pv.Set((*out).Addr())
+				} else {
+					*out = pv.Elem()
+				}
+				setter, _ = pv.Interface().(Setter)
+				again = true
+			}
+		}
+		if setter != nil {
+			var arg interface{}
+			*out = reflect.ValueOf(&arg).Elem()
+			return func() {
+				*good = setter.SetYAML(shortTag(tag), arg)
+			}
+		}
+	}
+	return nil
+}
+
+func (d *decoder) unmarshal(n *node, out reflect.Value) (good bool) {
+	switch n.kind {
+	case documentNode:
+		good = d.document(n, out)
+	case scalarNode:
+		good = d.scalar(n, out)
+	case aliasNode:
+		good = d.alias(n, out)
+	case mappingNode:
+		good = d.mapping(n, out)
+	case sequenceNode:
+		good = d.sequence(n, out)
+	default:
+		panic("Internal error: unknown node kind: " + strconv.Itoa(n.kind))
+	}
+	return
+}
+
+func (d *decoder) document(n *node, out reflect.Value) (good bool) {
+	if len(n.children) == 1 {
+		d.doc = n
+		d.unmarshal(n.children[0], out)
+		return true
+	}
+	return false
+}
+
+func (d *decoder) alias(n *node, out reflect.Value) (good bool) {
+	an, ok := d.doc.anchors[n.value]
+	if !ok {
+		fail("Unknown anchor '" + n.value + "' referenced")
+	}
+	if d.aliases[n.value] {
+		fail("Anchor '" + n.value + "' value contains itself")
+	}
+	d.aliases[n.value] = true
+	good = d.unmarshal(an, out)
+	delete(d.aliases, n.value)
+	return good
+}
+
+var zeroValue reflect.Value
+
+func resetMap(out reflect.Value) {
+	for _, k := range out.MapKeys() {
+		out.SetMapIndex(k, zeroValue)
+	}
+}
+
+var durationType = reflect.TypeOf(time.Duration(0))
+
+func (d *decoder) scalar(n *node, out reflect.Value) (good bool) {
+	var tag string
+	var resolved interface{}
+	if n.tag == "" && !n.implicit {
+		tag = yaml_STR_TAG
+		resolved = n.value
+	} else {
+		tag, resolved = resolve(n.tag, n.value)
+		if tag == yaml_BINARY_TAG {
+			data, err := base64.StdEncoding.DecodeString(resolved.(string))
+			if err != nil {
+				fail("!!binary value contains invalid base64 data")
+			}
+			resolved = string(data)
+		}
+	}
+	if set := d.setter(tag, &out, &good); set != nil {
+		defer set()
+	}
+	if resolved == nil {
+		if out.Kind() == reflect.Map && !out.CanAddr() {
+			resetMap(out)
+		} else {
+			out.Set(reflect.Zero(out.Type()))
+		}
+		good = true
+		return
+	}
+	switch out.Kind() {
+	case reflect.String:
+		if tag == yaml_BINARY_TAG {
+			out.SetString(resolved.(string))
+			good = true
+		} else if resolved != nil {
+			out.SetString(n.value)
+			good = true
+		}
+	case reflect.Interface:
+		if resolved == nil {
+			out.Set(reflect.Zero(out.Type()))
+		} else {
+			out.Set(reflect.ValueOf(resolved))
+		}
+		good = true
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		switch resolved := resolved.(type) {
+		case int:
+			if !out.OverflowInt(int64(resolved)) {
+				out.SetInt(int64(resolved))
+				good = true
+			}
+		case int64:
+			if !out.OverflowInt(resolved) {
+				out.SetInt(resolved)
+				good = true
+			}
+		case float64:
+			if resolved < 1<<63-1 && !out.OverflowInt(int64(resolved)) {
+				out.SetInt(int64(resolved))
+				good = true
+			}
+		case string:
+			if out.Type() == durationType {
+				d, err := time.ParseDuration(resolved)
+				if err == nil {
+					out.SetInt(int64(d))
+					good = true
+				}
+			}
+		}
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		switch resolved := resolved.(type) {
+		case int:
+			if resolved >= 0 {
+				out.SetUint(uint64(resolved))
+				good = true
+			}
+		case int64:
+			if resolved >= 0 {
+				out.SetUint(uint64(resolved))
+				good = true
+			}
+		case float64:
+			if resolved < 1<<64-1 && !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				good = true
+			}
+		}
+	case reflect.Bool:
+		switch resolved := resolved.(type) {
+		case bool:
+			out.SetBool(resolved)
+			good = true
+		}
+	case reflect.Float32, reflect.Float64:
+		switch resolved := resolved.(type) {
+		case int:
+			out.SetFloat(float64(resolved))
+			good = true
+		case int64:
+			out.SetFloat(float64(resolved))
+			good = true
+		case float64:
+			out.SetFloat(resolved)
+			good = true
+		}
+	case reflect.Ptr:
+		if out.Type().Elem() == reflect.TypeOf(resolved) {
+			elem := reflect.New(out.Type().Elem())
+			elem.Elem().Set(reflect.ValueOf(resolved))
+			out.Set(elem)
+			good = true
+		}
+	}
+	return good
+}
+
+func settableValueOf(i interface{}) reflect.Value {
+	v := reflect.ValueOf(i)
+	sv := reflect.New(v.Type()).Elem()
+	sv.Set(v)
+	return sv
+}
+
+func (d *decoder) sequence(n *node, out reflect.Value) (good bool) {
+	if set := d.setter(yaml_SEQ_TAG, &out, &good); set != nil {
+		defer set()
+	}
+	var iface reflect.Value
+	if out.Kind() == reflect.Interface {
+		// No type hints. Will have to use a generic sequence.
+		iface = out
+		out = settableValueOf(make([]interface{}, 0))
+	}
+
+	if out.Kind() != reflect.Slice {
+		return false
+	}
+	et := out.Type().Elem()
+
+	l := len(n.children)
+	for i := 0; i < l; i++ {
+		e := reflect.New(et).Elem()
+		if ok := d.unmarshal(n.children[i], e); ok {
+			out.Set(reflect.Append(out, e))
+		}
+	}
+	if iface.IsValid() {
+		iface.Set(out)
+	}
+	return true
+}
+
+func (d *decoder) mapping(n *node, out reflect.Value) (good bool) {
+	if set := d.setter(yaml_MAP_TAG, &out, &good); set != nil {
+		defer set()
+	}
+	if out.Kind() == reflect.Struct {
+		return d.mappingStruct(n, out)
+	}
+
+	if out.Kind() == reflect.Interface {
+		// No type hints. Will have to use a generic map.
+		iface := out
+		out = settableValueOf(make(map[interface{}]interface{}))
+		iface.Set(out)
+	}
+
+	if out.Kind() != reflect.Map {
+		return false
+	}
+	outt := out.Type()
+	kt := outt.Key()
+	et := outt.Elem()
+
+	if out.IsNil() {
+		out.Set(reflect.MakeMap(outt))
+	}
+	l := len(n.children)
+	for i := 0; i < l; i += 2 {
+		if isMerge(n.children[i]) {
+			d.merge(n.children[i+1], out)
+			continue
+		}
+		k := reflect.New(kt).Elem()
+		if d.unmarshal(n.children[i], k) {
+			kkind := k.Kind()
+			if kkind == reflect.Interface {
+				kkind = k.Elem().Kind()
+			}
+			if kkind == reflect.Map || kkind == reflect.Slice {
+				fail(fmt.Sprintf("invalid map key: %#v", k.Interface()))
+			}
+			e := reflect.New(et).Elem()
+			if d.unmarshal(n.children[i+1], e) {
+				out.SetMapIndex(k, e)
+			}
+		}
+	}
+	return true
+}
+
+func (d *decoder) mappingStruct(n *node, out reflect.Value) (good bool) {
+	sinfo, err := getStructInfo(out.Type())
+	if err != nil {
+		panic(err)
+	}
+	name := settableValueOf("")
+	l := len(n.children)
+	for i := 0; i < l; i += 2 {
+		ni := n.children[i]
+		if isMerge(ni) {
+			d.merge(n.children[i+1], out)
+			continue
+		}
+		if !d.unmarshal(ni, name) {
+			continue
+		}
+		if info, ok := sinfo.FieldsMap[name.String()]; ok {
+			var field reflect.Value
+			if info.Inline == nil {
+				field = out.Field(info.Num)
+			} else {
+				field = out.FieldByIndex(info.Inline)
+			}
+			d.unmarshal(n.children[i+1], field)
+		}
+	}
+	return true
+}
+
+func (d *decoder) merge(n *node, out reflect.Value) {
+	const wantMap = "map merge requires map or sequence of maps as the value"
+	switch n.kind {
+	case mappingNode:
+		d.unmarshal(n, out)
+	case aliasNode:
+		an, ok := d.doc.anchors[n.value]
+		if ok && an.kind != mappingNode {
+			fail(wantMap)
+		}
+		d.unmarshal(n, out)
+	case sequenceNode:
+		// Step backwards as earlier nodes take precedence.
+		for i := len(n.children) - 1; i >= 0; i-- {
+			ni := n.children[i]
+			if ni.kind == aliasNode {
+				an, ok := d.doc.anchors[ni.value]
+				if ok && an.kind != mappingNode {
+					fail(wantMap)
+				}
+			} else if ni.kind != mappingNode {
+				fail(wantMap)
+			}
+			d.unmarshal(ni, out)
+		}
+	default:
+		fail(wantMap)
+	}
+}
+
+func isMerge(n *node) bool {
+	return n.kind == scalarNode && n.value == "<<" && (n.implicit == true || n.tag == yaml_MERGE_TAG)
+}

Godeps/_workspace/src/github.com/coreos/yaml/decode_test.go

@@ -0,0 +1,720 @@
+package yaml_test
+
+import (
+	"github.com/coreos/yaml"
+	. "gopkg.in/check.v1"
+	"math"
+	"reflect"
+	"strings"
+	"time"
+)
+
+var unmarshalIntTest = 123
+
+var unmarshalTests = []struct {
+	data  string
+	value interface{}
+}{
+	{
+		"",
+		&struct{}{},
+	}, {
+		"{}", &struct{}{},
+	}, {
+		"v: hi",
+		map[string]string{"v": "hi"},
+	}, {
+		"v: hi", map[string]interface{}{"v": "hi"},
+	}, {
+		"v: true",
+		map[string]string{"v": "true"},
+	}, {
+		"v: true",
+		map[string]interface{}{"v": true},
+	}, {
+		"v: 10",
+		map[string]interface{}{"v": 10},
+	}, {
+		"v: 0b10",
+		map[string]interface{}{"v": 2},
+	}, {
+		"v: 0xA",
+		map[string]interface{}{"v": 10},
+	}, {
+		"v: 4294967296",
+		map[string]int64{"v": 4294967296},
+	}, {
+		"v: 0.1",
+		map[string]interface{}{"v": 0.1},
+	}, {
+		"v: .1",
+		map[string]interface{}{"v": 0.1},
+	}, {
+		"v: .Inf",
+		map[string]interface{}{"v": math.Inf(+1)},
+	}, {
+		"v: -.Inf",
+		map[string]interface{}{"v": math.Inf(-1)},
+	}, {
+		"v: -10",
+		map[string]interface{}{"v": -10},
+	}, {
+		"v: -.1",
+		map[string]interface{}{"v": -0.1},
+	},
+
+	// Simple values.
+	{
+		"123",
+		&unmarshalIntTest,
+	},
+
+	// Floats from spec
+	{
+		"canonical: 6.8523e+5",
+		map[string]interface{}{"canonical": 6.8523e+5},
+	}, {
+		"expo: 685.230_15e+03",
+		map[string]interface{}{"expo": 685.23015e+03},
+	}, {
+		"fixed: 685_230.15",
+		map[string]interface{}{"fixed": 685230.15},
+	}, {
+		"neginf: -.inf",
+		map[string]interface{}{"neginf": math.Inf(-1)},
+	}, {
+		"fixed: 685_230.15",
+		map[string]float64{"fixed": 685230.15},
+	},
+	//{"sexa: 190:20:30.15", map[string]interface{}{"sexa": 0}}, // Unsupported
+	//{"notanum: .NaN", map[string]interface{}{"notanum": math.NaN()}}, // Equality of NaN fails.
+
+	// Bools from spec
+	{
+		"canonical: y",
+		map[string]interface{}{"canonical": true},
+	}, {
+		"answer: NO",
+		map[string]interface{}{"answer": false},
+	}, {
+		"logical: True",
+		map[string]interface{}{"logical": true},
+	}, {
+		"option: on",
+		map[string]interface{}{"option": true},
+	}, {
+		"option: on",
+		map[string]bool{"option": true},
+	},
+	// Ints from spec
+	{
+		"canonical: 685230",
+		map[string]interface{}{"canonical": 685230},
+	}, {
+		"decimal: +685_230",
+		map[string]interface{}{"decimal": 685230},
+	}, {
+		"octal: 02472256",
+		map[string]interface{}{"octal": 685230},
+	}, {
+		"hexa: 0x_0A_74_AE",
+		map[string]interface{}{"hexa": 685230},
+	}, {
+		"bin: 0b1010_0111_0100_1010_1110",
+		map[string]interface{}{"bin": 685230},
+	}, {
+		"bin: -0b101010",
+		map[string]interface{}{"bin": -42},
+	}, {
+		"decimal: +685_230",
+		map[string]int{"decimal": 685230},
+	},
+
+	//{"sexa: 190:20:30", map[string]interface{}{"sexa": 0}}, // Unsupported
+
+	// Nulls from spec
+	{
+		"empty:",
+		map[string]interface{}{"empty": nil},
+	}, {
+		"canonical: ~",
+		map[string]interface{}{"canonical": nil},
+	}, {
+		"english: null",
+		map[string]interface{}{"english": nil},
+	}, {
+		"~: null key",
+		map[interface{}]string{nil: "null key"},
+	}, {
+		"empty:",
+		map[string]*bool{"empty": nil},
+	},
+
+	// Flow sequence
+	{
+		"seq: [A,B]",
+		map[string]interface{}{"seq": []interface{}{"A", "B"}},
+	}, {
+		"seq: [A,B,C,]",
+		map[string][]string{"seq": []string{"A", "B", "C"}},
+	}, {
+		"seq: [A,1,C]",
+		map[string][]string{"seq": []string{"A", "1", "C"}},
+	}, {
+		"seq: [A,1,C]",
+		map[string][]int{"seq": []int{1}},
+	}, {
+		"seq: [A,1,C]",
+		map[string]interface{}{"seq": []interface{}{"A", 1, "C"}},
+	},
+	// Block sequence
+	{
+		"seq:\n - A\n - B",
+		map[string]interface{}{"seq": []interface{}{"A", "B"}},
+	}, {
+		"seq:\n - A\n - B\n - C",
+		map[string][]string{"seq": []string{"A", "B", "C"}},
+	}, {
+		"seq:\n - A\n - 1\n - C",
+		map[string][]string{"seq": []string{"A", "1", "C"}},
+	}, {
+		"seq:\n - A\n - 1\n - C",
+		map[string][]int{"seq": []int{1}},
+	}, {
+		"seq:\n - A\n - 1\n - C",
+		map[string]interface{}{"seq": []interface{}{"A", 1, "C"}},
+	},
+
+	// Literal block scalar
+	{
+		"scalar: | # Comment\n\n literal\n\n \ttext\n\n",
+		map[string]string{"scalar": "\nliteral\n\n\ttext\n"},
+	},
+
+	// Folded block scalar
+	{
+		"scalar: > # Comment\n\n folded\n line\n \n next\n line\n  * one\n  * two\n\n last\n line\n\n",
+		map[string]string{"scalar": "\nfolded line\nnext line\n * one\n * two\n\nlast line\n"},
+	},
+
+	// Map inside interface with no type hints.
+	{
+		"a: {b: c}",
+		map[string]interface{}{"a": map[interface{}]interface{}{"b": "c"}},
+	},
+
+	// Structs and type conversions.
+	{
+		"hello: world",
+		&struct{ Hello string }{"world"},
+	}, {
+		"a: {b: c}",
+		&struct{ A struct{ B string } }{struct{ B string }{"c"}},
+	}, {
+		"a: {b: c}",
+		&struct{ A *struct{ B string } }{&struct{ B string }{"c"}},
+	}, {
+		"a: {b: c}",
+		&struct{ A map[string]string }{map[string]string{"b": "c"}},
+	}, {
+		"a: {b: c}",
+		&struct{ A *map[string]string }{&map[string]string{"b": "c"}},
+	}, {
+		"a:",
+		&struct{ A map[string]string }{},
+	}, {
+		"a: 1",
+		&struct{ A int }{1},
+	}, {
+		"a: 1",
+		&struct{ A float64 }{1},
+	}, {
+		"a: 1.0",
+		&struct{ A int }{1},
+	}, {
+		"a: 1.0",
+		&struct{ A uint }{1},
+	}, {
+		"a: [1, 2]",
+		&struct{ A []int }{[]int{1, 2}},
+	}, {
+		"a: 1",
+		&struct{ B int }{0},
+	}, {
+		"a: 1",
+		&struct {
+			B int "a"
+		}{1},
+	}, {
+		"a: y",
+		&struct{ A bool }{true},
+	},
+
+	// Some cross type conversions
+	{
+		"v: 42",
+		map[string]uint{"v": 42},
+	}, {
+		"v: -42",
+		map[string]uint{},
+	}, {
+		"v: 4294967296",
+		map[string]uint64{"v": 4294967296},
+	}, {
+		"v: -4294967296",
+		map[string]uint64{},
+	},
+
+	// Overflow cases.
+	{
+		"v: 4294967297",
+		map[string]int32{},
+	}, {
+		"v: 128",
+		map[string]int8{},
+	},
+
+	// Quoted values.
+	{
+		"'1': '\"2\"'",
+		map[interface{}]interface{}{"1": "\"2\""},
+	}, {
+		"v:\n- A\n- 'B\n\n  C'\n",
+		map[string][]string{"v": []string{"A", "B\nC"}},
+	},
+
+	// Explicit tags.
+	{
+		"v: !!float '1.1'",
+		map[string]interface{}{"v": 1.1},
+	}, {
+		"v: !!null ''",
+		map[string]interface{}{"v": nil},
+	}, {
+		"%TAG !y! tag:yaml.org,2002:\n---\nv: !y!int '1'",
+		map[string]interface{}{"v": 1},
+	},
+
+	// Anchors and aliases.
+	{
+		"a: &x 1\nb: &y 2\nc: *x\nd: *y\n",
+		&struct{ A, B, C, D int }{1, 2, 1, 2},
+	}, {
+		"a: &a {c: 1}\nb: *a",
+		&struct {
+			A, B struct {
+				C int
+			}
+		}{struct{ C int }{1}, struct{ C int }{1}},
+	}, {
+		"a: &a [1, 2]\nb: *a",
+		&struct{ B []int }{[]int{1, 2}},
+	},
+
+	// Bug #1133337
+	{
+		"foo: ''",
+		map[string]*string{"foo": new(string)},
+	}, {
+		"foo: null",
+		map[string]string{"foo": ""},
+	}, {
+		"foo: null",
+		map[string]interface{}{"foo": nil},
+	},
+
+	// Ignored field
+	{
+		"a: 1\nb: 2\n",
+		&struct {
+			A int
+			B int "-"
+		}{1, 0},
+	},
+
+	// Bug #1191981
+	{
+		"" +
+			"%YAML 1.1\n" +
+			"--- !!str\n" +
+			`"Generic line break (no glyph)\n\` + "\n" +
+			` Generic line break (glyphed)\n\` + "\n" +
+			` Line separator\u2028\` + "\n" +
+			` Paragraph separator\u2029"` + "\n",
+		"" +
+			"Generic line break (no glyph)\n" +
+			"Generic line break (glyphed)\n" +
+			"Line separator\u2028Paragraph separator\u2029",
+	},
+
+	// Struct inlining
+	{
+		"a: 1\nb: 2\nc: 3\n",
+		&struct {
+			A int
+			C inlineB `yaml:",inline"`
+		}{1, inlineB{2, inlineC{3}}},
+	},
+
+	// bug 1243827
+	{
+		"a: -b_c",
+		map[string]interface{}{"a": "-b_c"},
+	},
+	{
+		"a: +b_c",
+		map[string]interface{}{"a": "+b_c"},
+	},
+	{
+		"a: 50cent_of_dollar",
+		map[string]interface{}{"a": "50cent_of_dollar"},
+	},
+
+	// Duration
+	{
+		"a: 3s",
+		map[string]time.Duration{"a": 3 * time.Second},
+	},
+
+	// Issue #24.
+	{
+		"a: <foo>",
+		map[string]string{"a": "<foo>"},
+	},
+
+	// Base 60 floats are obsolete and unsupported.
+	{
+		"a: 1:1\n",
+		map[string]string{"a": "1:1"},
+	},
+
+	// Binary data.
+	{
+		"a: !!binary gIGC\n",
+		map[string]string{"a": "\x80\x81\x82"},
+	}, {
+		"a: !!binary |\n  " + strings.Repeat("kJCQ", 17) + "kJ\n  CQ\n",
+		map[string]string{"a": strings.Repeat("\x90", 54)},
+	}, {
+		"a: !!binary |\n  " + strings.Repeat("A", 70) + "\n  ==\n",
+		map[string]string{"a": strings.Repeat("\x00", 52)},
+	},
+}
+
+type inlineB struct {
+	B       int
+	inlineC `yaml:",inline"`
+}
+
+type inlineC struct {
+	C int
+}
+
+func (s *S) TestUnmarshal(c *C) {
+	for i, item := range unmarshalTests {
+		t := reflect.ValueOf(item.value).Type()
+		var value interface{}
+		switch t.Kind() {
+		case reflect.Map:
+			value = reflect.MakeMap(t).Interface()
+		case reflect.String:
+			t := reflect.ValueOf(item.value).Type()
+			v := reflect.New(t)
+			value = v.Interface()
+		default:
+			pt := reflect.ValueOf(item.value).Type()
+			pv := reflect.New(pt.Elem())
+			value = pv.Interface()
+		}
+		err := yaml.Unmarshal([]byte(item.data), value)
+		c.Assert(err, IsNil, Commentf("Item #%d", i))
+		if t.Kind() == reflect.String {
+			c.Assert(*value.(*string), Equals, item.value, Commentf("Item #%d", i))
+		} else {
+			c.Assert(value, DeepEquals, item.value, Commentf("Item #%d", i))
+		}
+	}
+}
+
+func (s *S) TestUnmarshalNaN(c *C) {
+	value := map[string]interface{}{}
+	err := yaml.Unmarshal([]byte("notanum: .NaN"), &value)
+	c.Assert(err, IsNil)
+	c.Assert(math.IsNaN(value["notanum"].(float64)), Equals, true)
+}
+
+var unmarshalErrorTests = []struct {
+	data, error string
+}{
+	{"v: !!float 'error'", "YAML error: cannot decode !!str `error` as a !!float"},
+	{"v: [A,", "YAML error: line 1: did not find expected node content"},
+	{"v:\n- [A,", "YAML error: line 2: did not find expected node content"},
+	{"a: *b\n", "YAML error: Unknown anchor 'b' referenced"},
+	{"a: &a\n  b: *a\n", "YAML error: Anchor 'a' value contains itself"},
+	{"value: -", "YAML error: block sequence entries are not allowed in this context"},
+	{"a: !!binary ==", "YAML error: !!binary value contains invalid base64 data"},
+	{"{[.]}", `YAML error: invalid map key: \[\]interface \{\}\{"\."\}`},
+	{"{{.}}", `YAML error: invalid map key: map\[interface\ \{\}\]interface \{\}\{".":interface \{\}\(nil\)\}`},
+}
+
+func (s *S) TestUnmarshalErrors(c *C) {
+	for _, item := range unmarshalErrorTests {
+		var value interface{}
+		err := yaml.Unmarshal([]byte(item.data), &value)
+		c.Assert(err, ErrorMatches, item.error, Commentf("Partial unmarshal: %#v", value))
+	}
+}
+
+var setterTests = []struct {
+	data, tag string
+	value     interface{}
+}{
+	{"_: {hi: there}", "!!map", map[interface{}]interface{}{"hi": "there"}},
+	{"_: [1,A]", "!!seq", []interface{}{1, "A"}},
+	{"_: 10", "!!int", 10},
+	{"_: null", "!!null", nil},
+	{`_: BAR!`, "!!str", "BAR!"},
+	{`_: "BAR!"`, "!!str", "BAR!"},
+	{"_: !!foo 'BAR!'", "!!foo", "BAR!"},
+}
+
+var setterResult = map[int]bool{}
+
+type typeWithSetter struct {
+	tag   string
+	value interface{}
+}
+
+func (o *typeWithSetter) SetYAML(tag string, value interface{}) (ok bool) {
+	o.tag = tag
+	o.value = value
+	if i, ok := value.(int); ok {
+		if result, ok := setterResult[i]; ok {
+			return result
+		}
+	}
+	return true
+}
+
+type setterPointerType struct {
+	Field *typeWithSetter "_"
+}
+
+type setterValueType struct {
+	Field typeWithSetter "_"
+}
+
+func (s *S) TestUnmarshalWithPointerSetter(c *C) {
+	for _, item := range setterTests {
+		obj := &setterPointerType{}
+		err := yaml.Unmarshal([]byte(item.data), obj)
+		c.Assert(err, IsNil)
+		c.Assert(obj.Field, NotNil, Commentf("Pointer not initialized (%#v)", item.value))
+		c.Assert(obj.Field.tag, Equals, item.tag)
+		c.Assert(obj.Field.value, DeepEquals, item.value)
+	}
+}
+
+func (s *S) TestUnmarshalWithValueSetter(c *C) {
+	for _, item := range setterTests {
+		obj := &setterValueType{}
+		err := yaml.Unmarshal([]byte(item.data), obj)
+		c.Assert(err, IsNil)
+		c.Assert(obj.Field, NotNil, Commentf("Pointer not initialized (%#v)", item.value))
+		c.Assert(obj.Field.tag, Equals, item.tag)
+		c.Assert(obj.Field.value, DeepEquals, item.value)
+	}
+}
+
+func (s *S) TestUnmarshalWholeDocumentWithSetter(c *C) {
+	obj := &typeWithSetter{}
+	err := yaml.Unmarshal([]byte(setterTests[0].data), obj)
+	c.Assert(err, IsNil)
+	c.Assert(obj.tag, Equals, setterTests[0].tag)
+	value, ok := obj.value.(map[interface{}]interface{})
+	c.Assert(ok, Equals, true)
+	c.Assert(value["_"], DeepEquals, setterTests[0].value)
+}
+
+func (s *S) TestUnmarshalWithFalseSetterIgnoresValue(c *C) {
+	setterResult[2] = false
+	setterResult[4] = false
+	defer func() {
+		delete(setterResult, 2)
+		delete(setterResult, 4)
+	}()
+
+	m := map[string]*typeWithSetter{}
+	data := `{abc: 1, def: 2, ghi: 3, jkl: 4}`
+	err := yaml.Unmarshal([]byte(data), m)
+	c.Assert(err, IsNil)
+	c.Assert(m["abc"], NotNil)
+	c.Assert(m["def"], IsNil)
+	c.Assert(m["ghi"], NotNil)
+	c.Assert(m["jkl"], IsNil)
+
+	c.Assert(m["abc"].value, Equals, 1)
+	c.Assert(m["ghi"].value, Equals, 3)
+}
+
+func (s *S) TestUnmarshalWithTransform(c *C) {
+	data := `{a_b: 1, c-d: 2, e-f_g: 3, h_i-j: 4}`
+	expect := map[string]int{
+		"a_b":   1,
+		"c_d":   2,
+		"e_f_g": 3,
+		"h_i_j": 4,
+	}
+	m := map[string]int{}
+	yaml.UnmarshalMappingKeyTransform = func(i string) string {
+		return strings.Replace(i, "-", "_", -1)
+	}
+	err := yaml.Unmarshal([]byte(data), m)
+	c.Assert(err, IsNil)
+	c.Assert(m, DeepEquals, expect)
+}
+
+// From http://yaml.org/type/merge.html
+var mergeTests = `
+anchors:
+  - &CENTER { "x": 1, "y": 2 }
+  - &LEFT   { "x": 0, "y": 2 }
+  - &BIG    { "r": 10 }
+  - &SMALL  { "r": 1 }
+
+# All the following maps are equal:
+
+plain:
+  # Explicit keys
+  "x": 1
+  "y": 2
+  "r": 10
+  label: center/big
+
+mergeOne:
+  # Merge one map
+  << : *CENTER
+  "r": 10
+  label: center/big
+
+mergeMultiple:
+  # Merge multiple maps
+  << : [ *CENTER, *BIG ]
+  label: center/big
+
+override:
+  # Override
+  << : [ *BIG, *LEFT, *SMALL ]
+  "x": 1
+  label: center/big
+
+shortTag:
+  # Explicit short merge tag
+  !!merge "<<" : [ *CENTER, *BIG ]
+  label: center/big
+
+longTag:
+  # Explicit merge long tag
+  !<tag:yaml.org,2002:merge> "<<" : [ *CENTER, *BIG ]
+  label: center/big
+
+inlineMap:
+  # Inlined map 
+  << : {"x": 1, "y": 2, "r": 10}
+  label: center/big
+
+inlineSequenceMap:
+  # Inlined map in sequence
+  << : [ *CENTER, {"r": 10} ]
+  label: center/big
+`
+
+func (s *S) TestMerge(c *C) {
+	var want = map[interface{}]interface{}{
+		"x":     1,
+		"y":     2,
+		"r":     10,
+		"label": "center/big",
+	}
+
+	var m map[string]interface{}
+	err := yaml.Unmarshal([]byte(mergeTests), &m)
+	c.Assert(err, IsNil)
+	for name, test := range m {
+		if name == "anchors" {
+			continue
+		}
+		c.Assert(test, DeepEquals, want, Commentf("test %q failed", name))
+	}
+}
+
+func (s *S) TestMergeStruct(c *C) {
+	type Data struct {
+		X, Y, R int
+		Label   string
+	}
+	want := Data{1, 2, 10, "center/big"}
+
+	var m map[string]Data
+	err := yaml.Unmarshal([]byte(mergeTests), &m)
+	c.Assert(err, IsNil)
+	for name, test := range m {
+		if name == "anchors" {
+			continue
+		}
+		c.Assert(test, Equals, want, Commentf("test %q failed", name))
+	}
+}
+
+var unmarshalNullTests = []func() interface{}{
+	func() interface{} { var v interface{}; v = "v"; return &v },
+	func() interface{} { var s = "s"; return &s },
+	func() interface{} { var s = "s"; sptr := &s; return &sptr },
+	func() interface{} { var i = 1; return &i },
+	func() interface{} { var i = 1; iptr := &i; return &iptr },
+	func() interface{} { m := map[string]int{"s": 1}; return &m },
+	func() interface{} { m := map[string]int{"s": 1}; return m },
+}
+
+func (s *S) TestUnmarshalNull(c *C) {
+	for _, test := range unmarshalNullTests {
+		item := test()
+		zero := reflect.Zero(reflect.TypeOf(item).Elem()).Interface()
+		err := yaml.Unmarshal([]byte("null"), item)
+		c.Assert(err, IsNil)
+		if reflect.TypeOf(item).Kind() == reflect.Map {
+			c.Assert(reflect.ValueOf(item).Interface(), DeepEquals, reflect.MakeMap(reflect.TypeOf(item)).Interface())
+		} else {
+			c.Assert(reflect.ValueOf(item).Elem().Interface(), DeepEquals, zero)
+		}
+	}
+}
+
+//var data []byte
+//func init() {
+//	var err error
+//	data, err = ioutil.ReadFile("/tmp/file.yaml")
+//	if err != nil {
+//		panic(err)
+//	}
+//}
+//
+//func (s *S) BenchmarkUnmarshal(c *C) {
+//	var err error
+//	for i := 0; i < c.N; i++ {
+//		var v map[string]interface{}
+//		err = yaml.Unmarshal(data, &v)
+//	}
+//	if err != nil {
+//		panic(err)
+//	}
+//}
+//
+//func (s *S) BenchmarkMarshal(c *C) {
+//	var v map[string]interface{}
+//	yaml.Unmarshal(data, &v)
+//	c.ResetTimer()
+//	for i := 0; i < c.N; i++ {
+//		yaml.Marshal(&v)
+//	}
+//}

Godeps/_workspace/src/github.com/coreos/yaml/encode.go

@@ -0,0 +1,265 @@
+package yaml
+
+import (
+	"reflect"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+)
+
+type encoder struct {
+	emitter yaml_emitter_t
+	event   yaml_event_t
+	out     []byte
+	flow    bool
+}
+
+func newEncoder() (e *encoder) {
+	e = &encoder{}
+	e.must(yaml_emitter_initialize(&e.emitter))
+	yaml_emitter_set_output_string(&e.emitter, &e.out)
+	e.must(yaml_stream_start_event_initialize(&e.event, yaml_UTF8_ENCODING))
+	e.emit()
+	e.must(yaml_document_start_event_initialize(&e.event, nil, nil, true))
+	e.emit()
+	return e
+}
+
+func (e *encoder) finish() {
+	e.must(yaml_document_end_event_initialize(&e.event, true))
+	e.emit()
+	e.emitter.open_ended = false
+	e.must(yaml_stream_end_event_initialize(&e.event))
+	e.emit()
+}
+
+func (e *encoder) destroy() {
+	yaml_emitter_delete(&e.emitter)
+}
+
+func (e *encoder) emit() {
+	// This will internally delete the e.event value.
+	if !yaml_emitter_emit(&e.emitter, &e.event) && e.event.typ != yaml_DOCUMENT_END_EVENT && e.event.typ != yaml_STREAM_END_EVENT {
+		e.must(false)
+	}
+}
+
+func (e *encoder) must(ok bool) {
+	if !ok {
+		msg := e.emitter.problem
+		if msg == "" {
+			msg = "Unknown problem generating YAML content"
+		}
+		fail(msg)
+	}
+}
+
+func (e *encoder) marshal(tag string, in reflect.Value) {
+	if !in.IsValid() {
+		e.nilv()
+		return
+	}
+	var value interface{}
+	if getter, ok := in.Interface().(Getter); ok {
+		tag, value = getter.GetYAML()
+		tag = longTag(tag)
+		if value == nil {
+			e.nilv()
+			return
+		}
+		in = reflect.ValueOf(value)
+	}
+	switch in.Kind() {
+	case reflect.Interface:
+		if in.IsNil() {
+			e.nilv()
+		} else {
+			e.marshal(tag, in.Elem())
+		}
+	case reflect.Map:
+		e.mapv(tag, in)
+	case reflect.Ptr:
+		if in.IsNil() {
+			e.nilv()
+		} else {
+			e.marshal(tag, in.Elem())
+		}
+	case reflect.Struct:
+		e.structv(tag, in)
+	case reflect.Slice:
+		e.slicev(tag, in)
+	case reflect.String:
+		e.stringv(tag, in)
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		if in.Type() == durationType {
+			e.stringv(tag, reflect.ValueOf(in.Interface().(time.Duration).String()))
+		} else {
+			e.intv(tag, in)
+		}
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		e.uintv(tag, in)
+	case reflect.Float32, reflect.Float64:
+		e.floatv(tag, in)
+	case reflect.Bool:
+		e.boolv(tag, in)
+	default:
+		panic("Can't marshal type: " + in.Type().String())
+	}
+}
+
+func (e *encoder) mapv(tag string, in reflect.Value) {
+	e.mappingv(tag, func() {
+		keys := keyList(in.MapKeys())
+		sort.Sort(keys)
+		for _, k := range keys {
+			e.marshal("", k)
+			e.marshal("", in.MapIndex(k))
+		}
+	})
+}
+
+func (e *encoder) structv(tag string, in reflect.Value) {
+	sinfo, err := getStructInfo(in.Type())
+	if err != nil {
+		panic(err)
+	}
+	e.mappingv(tag, func() {
+		for _, info := range sinfo.FieldsList {
+			var value reflect.Value
+			if info.Inline == nil {
+				value = in.Field(info.Num)
+			} else {
+				value = in.FieldByIndex(info.Inline)
+			}
+			if info.OmitEmpty && isZero(value) {
+				continue
+			}
+			e.marshal("", reflect.ValueOf(info.Key))
+			e.flow = info.Flow
+			e.marshal("", value)
+		}
+	})
+}
+
+func (e *encoder) mappingv(tag string, f func()) {
+	implicit := tag == ""
+	style := yaml_BLOCK_MAPPING_STYLE
+	if e.flow {
+		e.flow = false
+		style = yaml_FLOW_MAPPING_STYLE
+	}
+	e.must(yaml_mapping_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
+	e.emit()
+	f()
+	e.must(yaml_mapping_end_event_initialize(&e.event))
+	e.emit()
+}
+
+func (e *encoder) slicev(tag string, in reflect.Value) {
+	implicit := tag == ""
+	style := yaml_BLOCK_SEQUENCE_STYLE
+	if e.flow {
+		e.flow = false
+		style = yaml_FLOW_SEQUENCE_STYLE
+	}
+	e.must(yaml_sequence_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
+	e.emit()
+	n := in.Len()
+	for i := 0; i < n; i++ {
+		e.marshal("", in.Index(i))
+	}
+	e.must(yaml_sequence_end_event_initialize(&e.event))
+	e.emit()
+}
+
+// isBase60 returns whether s is in base 60 notation as defined in YAML 1.1.
+//
+// The base 60 float notation in YAML 1.1 is a terrible idea and is unsupported
+// in YAML 1.2 and by this package, but these should be marshalled quoted for
+// the time being for compatibility with other parsers.
+func isBase60Float(s string) (result bool) {
+	// Fast path.
+	if s == "" {
+		return false
+	}
+	c := s[0]
+	if !(c == '+' || c == '-' || c >= '0' && c <= '9') || strings.IndexByte(s, ':') < 0 {
+		return false
+	}
+	// Do the full match.
+	return base60float.MatchString(s)
+}
+
+// From http://yaml.org/type/float.html, except the regular expression there
+// is bogus. In practice parsers do not enforce the "\.[0-9_]*" suffix.
+var base60float = regexp.MustCompile(`^[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+(?:\.[0-9_]*)?$`)
+
+func (e *encoder) stringv(tag string, in reflect.Value) {
+	var style yaml_scalar_style_t
+	s := in.String()
+	rtag, rs := resolve("", s)
+	if rtag == yaml_BINARY_TAG {
+		if tag == "" || tag == yaml_STR_TAG {
+			tag = rtag
+			s = rs.(string)
+		} else if tag == yaml_BINARY_TAG {
+			fail("explicitly tagged !!binary data must be base64-encoded")
+		} else {
+			fail("cannot marshal invalid UTF-8 data as " + shortTag(tag))
+		}
+	}
+	if tag == "" && (rtag != yaml_STR_TAG || isBase60Float(s)) {
+		style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+	} else if strings.Contains(s, "\n") {
+		style = yaml_LITERAL_SCALAR_STYLE
+	} else {
+		style = yaml_PLAIN_SCALAR_STYLE
+	}
+	e.emitScalar(s, "", tag, style)
+}
+
+func (e *encoder) boolv(tag string, in reflect.Value) {
+	var s string
+	if in.Bool() {
+		s = "true"
+	} else {
+		s = "false"
+	}
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) intv(tag string, in reflect.Value) {
+	s := strconv.FormatInt(in.Int(), 10)
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) uintv(tag string, in reflect.Value) {
+	s := strconv.FormatUint(in.Uint(), 10)
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) floatv(tag string, in reflect.Value) {
+	// FIXME: Handle 64 bits here.
+	s := strconv.FormatFloat(float64(in.Float()), 'g', -1, 32)
+	switch s {
+	case "+Inf":
+		s = ".inf"
+	case "-Inf":
+		s = "-.inf"
+	case "NaN":
+		s = ".nan"
+	}
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) nilv() {
+	e.emitScalar("null", "", "", yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) emitScalar(value, anchor, tag string, style yaml_scalar_style_t) {
+	implicit := tag == ""
+	e.must(yaml_scalar_event_initialize(&e.event, []byte(anchor), []byte(tag), []byte(value), implicit, implicit, style))
+	e.emit()
+}

Godeps/_workspace/src/github.com/coreos/yaml/encode_test.go

@@ -0,0 +1,433 @@
+package yaml_test
+
+import (
+	"fmt"
+	"math"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/coreos/yaml"
+	. "gopkg.in/check.v1"
+)
+
+var marshalIntTest = 123
+
+var marshalTests = []struct {
+	value interface{}
+	data  string
+}{
+	{
+		nil,
+		"null\n",
+	}, {
+		&struct{}{},
+		"{}\n",
+	}, {
+		map[string]string{"v": "hi"},
+		"v: hi\n",
+	}, {
+		map[string]interface{}{"v": "hi"},
+		"v: hi\n",
+	}, {
+		map[string]string{"v": "true"},
+		"v: \"true\"\n",
+	}, {
+		map[string]string{"v": "false"},
+		"v: \"false\"\n",
+	}, {
+		map[string]interface{}{"v": true},
+		"v: true\n",
+	}, {
+		map[string]interface{}{"v": false},
+		"v: false\n",
+	}, {
+		map[string]interface{}{"v": 10},
+		"v: 10\n",
+	}, {
+		map[string]interface{}{"v": -10},
+		"v: -10\n",
+	}, {
+		map[string]uint{"v": 42},
+		"v: 42\n",
+	}, {
+		map[string]interface{}{"v": int64(4294967296)},
+		"v: 4294967296\n",
+	}, {
+		map[string]int64{"v": int64(4294967296)},
+		"v: 4294967296\n",
+	}, {
+		map[string]uint64{"v": 4294967296},
+		"v: 4294967296\n",
+	}, {
+		map[string]interface{}{"v": "10"},
+		"v: \"10\"\n",
+	}, {
+		map[string]interface{}{"v": 0.1},
+		"v: 0.1\n",
+	}, {
+		map[string]interface{}{"v": float64(0.1)},
+		"v: 0.1\n",
+	}, {
+		map[string]interface{}{"v": -0.1},
+		"v: -0.1\n",
+	}, {
+		map[string]interface{}{"v": math.Inf(+1)},
+		"v: .inf\n",
+	}, {
+		map[string]interface{}{"v": math.Inf(-1)},
+		"v: -.inf\n",
+	}, {
+		map[string]interface{}{"v": math.NaN()},
+		"v: .nan\n",
+	}, {
+		map[string]interface{}{"v": nil},
+		"v: null\n",
+	}, {
+		map[string]interface{}{"v": ""},
+		"v: \"\"\n",
+	}, {
+		map[string][]string{"v": []string{"A", "B"}},
+		"v:\n- A\n- B\n",
+	}, {
+		map[string][]string{"v": []string{"A", "B\nC"}},
+		"v:\n- A\n- |-\n  B\n  C\n",
+	}, {
+		map[string][]interface{}{"v": []interface{}{"A", 1, map[string][]int{"B": []int{2, 3}}}},
+		"v:\n- A\n- 1\n- B:\n  - 2\n  - 3\n",
+	}, {
+		map[string]interface{}{"a": map[interface{}]interface{}{"b": "c"}},
+		"a:\n  b: c\n",
+	}, {
+		map[string]interface{}{"a": "-"},
+		"a: '-'\n",
+	},
+
+	// Simple values.
+	{
+		&marshalIntTest,
+		"123\n",
+	},
+
+	// Structures
+	{
+		&struct{ Hello string }{"world"},
+		"hello: world\n",
+	}, {
+		&struct {
+			A struct {
+				B string
+			}
+		}{struct{ B string }{"c"}},
+		"a:\n  b: c\n",
+	}, {
+		&struct {
+			A *struct {
+				B string
+			}
+		}{&struct{ B string }{"c"}},
+		"a:\n  b: c\n",
+	}, {
+		&struct {
+			A *struct {
+				B string
+			}
+		}{},
+		"a: null\n",
+	}, {
+		&struct{ A int }{1},
+		"a: 1\n",
+	}, {
+		&struct{ A []int }{[]int{1, 2}},
+		"a:\n- 1\n- 2\n",
+	}, {
+		&struct {
+			B int "a"
+		}{1},
+		"a: 1\n",
+	}, {
+		&struct{ A bool }{true},
+		"a: true\n",
+	},
+
+	// Conditional flag
+	{
+		&struct {
+			A int "a,omitempty"
+			B int "b,omitempty"
+		}{1, 0},
+		"a: 1\n",
+	}, {
+		&struct {
+			A int "a,omitempty"
+			B int "b,omitempty"
+		}{0, 0},
+		"{}\n",
+	}, {
+		&struct {
+			A *struct{ X int } "a,omitempty"
+			B int              "b,omitempty"
+		}{nil, 0},
+		"{}\n",
+	},
+
+	// Flow flag
+	{
+		&struct {
+			A []int "a,flow"
+		}{[]int{1, 2}},
+		"a: [1, 2]\n",
+	}, {
+		&struct {
+			A map[string]string "a,flow"
+		}{map[string]string{"b": "c", "d": "e"}},
+		"a: {b: c, d: e}\n",
+	}, {
+		&struct {
+			A struct {
+				B, D string
+			} "a,flow"
+		}{struct{ B, D string }{"c", "e"}},
+		"a: {b: c, d: e}\n",
+	},
+
+	// Unexported field
+	{
+		&struct {
+			u int
+			A int
+		}{0, 1},
+		"a: 1\n",
+	},
+
+	// Ignored field
+	{
+		&struct {
+			A int
+			B int "-"
+		}{1, 2},
+		"a: 1\n",
+	},
+
+	// Struct inlining
+	{
+		&struct {
+			A int
+			C inlineB `yaml:",inline"`
+		}{1, inlineB{2, inlineC{3}}},
+		"a: 1\nb: 2\nc: 3\n",
+	},
+
+	// Duration
+	{
+		map[string]time.Duration{"a": 3 * time.Second},
+		"a: 3s\n",
+	},
+
+	// Issue #24: bug in map merging logic.
+	{
+		map[string]string{"a": "<foo>"},
+		"a: <foo>\n",
+	},
+
+	// Issue #34: marshal unsupported base 60 floats quoted for compatibility
+	// with old YAML 1.1 parsers.
+	{
+		map[string]string{"a": "1:1"},
+		"a: \"1:1\"\n",
+	},
+
+	// Binary data.
+	{
+		map[string]string{"a": "\x00"},
+		"a: \"\\0\"\n",
+	}, {
+		map[string]string{"a": "\x80\x81\x82"},
+		"a: !!binary gIGC\n",
+	}, {
+		map[string]string{"a": strings.Repeat("\x90", 54)},
+		"a: !!binary |\n  " + strings.Repeat("kJCQ", 17) + "kJ\n  CQ\n",
+	}, {
+		map[string]interface{}{"a": typeWithGetter{"!!str", "\x80\x81\x82"}},
+		"a: !!binary gIGC\n",
+	},
+
+	// Escaping of tags.
+	{
+		map[string]interface{}{"a": typeWithGetter{"foo!bar", 1}},
+		"a: !<foo%21bar> 1\n",
+	},
+}
+
+func (s *S) TestMarshal(c *C) {
+	for _, item := range marshalTests {
+		data, err := yaml.Marshal(item.value)
+		c.Assert(err, IsNil)
+		c.Assert(string(data), Equals, item.data)
+	}
+}
+
+var marshalErrorTests = []struct {
+	value interface{}
+	error string
+	panic string
+}{{
+	value: &struct {
+		B       int
+		inlineB ",inline"
+	}{1, inlineB{2, inlineC{3}}},
+	panic: `Duplicated key 'b' in struct struct \{ B int; .*`,
+}, {
+	value: typeWithGetter{"!!binary", "\x80"},
+	error: "YAML error: explicitly tagged !!binary data must be base64-encoded",
+}, {
+	value: typeWithGetter{"!!float", "\x80"},
+	error: `YAML error: cannot marshal invalid UTF-8 data as !!float`,
+}}
+
+func (s *S) TestMarshalErrors(c *C) {
+	for _, item := range marshalErrorTests {
+		if item.panic != "" {
+			c.Assert(func() { yaml.Marshal(item.value) }, PanicMatches, item.panic)
+		} else {
+			_, err := yaml.Marshal(item.value)
+			c.Assert(err, ErrorMatches, item.error)
+		}
+	}
+}
+
+var marshalTaggedIfaceTest interface{} = &struct{ A string }{"B"}
+
+var getterTests = []struct {
+	data, tag string
+	value     interface{}
+}{
+	{"_:\n  hi: there\n", "", map[interface{}]interface{}{"hi": "there"}},
+	{"_:\n- 1\n- A\n", "", []interface{}{1, "A"}},
+	{"_: 10\n", "", 10},
+	{"_: null\n", "", nil},
+	{"_: !foo BAR!\n", "!foo", "BAR!"},
+	{"_: !foo 1\n", "!foo", "1"},
+	{"_: !foo '\"1\"'\n", "!foo", "\"1\""},
+	{"_: !foo 1.1\n", "!foo", 1.1},
+	{"_: !foo 1\n", "!foo", 1},
+	{"_: !foo 1\n", "!foo", uint(1)},
+	{"_: !foo true\n", "!foo", true},
+	{"_: !foo\n- A\n- B\n", "!foo", []string{"A", "B"}},
+	{"_: !foo\n  A: B\n", "!foo", map[string]string{"A": "B"}},
+	{"_: !foo\n  a: B\n", "!foo", &marshalTaggedIfaceTest},
+}
+
+func (s *S) TestMarshalTypeCache(c *C) {
+	var data []byte
+	var err error
+	func() {
+		type T struct{ A int }
+		data, err = yaml.Marshal(&T{})
+		c.Assert(err, IsNil)
+	}()
+	func() {
+		type T struct{ B int }
+		data, err = yaml.Marshal(&T{})
+		c.Assert(err, IsNil)
+	}()
+	c.Assert(string(data), Equals, "b: 0\n")
+}
+
+type typeWithGetter struct {
+	tag   string
+	value interface{}
+}
+
+func (o typeWithGetter) GetYAML() (tag string, value interface{}) {
+	return o.tag, o.value
+}
+
+type typeWithGetterField struct {
+	Field typeWithGetter "_"
+}
+
+func (s *S) TestMashalWithGetter(c *C) {
+	for _, item := range getterTests {
+		obj := &typeWithGetterField{}
+		obj.Field.tag = item.tag
+		obj.Field.value = item.value
+		data, err := yaml.Marshal(obj)
+		c.Assert(err, IsNil)
+		c.Assert(string(data), Equals, string(item.data))
+	}
+}
+
+func (s *S) TestUnmarshalWholeDocumentWithGetter(c *C) {
+	obj := &typeWithGetter{}
+	obj.tag = ""
+	obj.value = map[string]string{"hello": "world!"}
+	data, err := yaml.Marshal(obj)
+	c.Assert(err, IsNil)
+	c.Assert(string(data), Equals, "hello: world!\n")
+}
+
+func (s *S) TestSortedOutput(c *C) {
+	order := []interface{}{
+		false,
+		true,
+		1,
+		uint(1),
+		1.0,
+		1.1,
+		1.2,
+		2,
+		uint(2),
+		2.0,
+		2.1,
+		"",
+		".1",
+		".2",
+		".a",
+		"1",
+		"2",
+		"a!10",
+		"a/2",
+		"a/10",
+		"a~10",
+		"ab/1",
+		"b/1",
+		"b/01",
+		"b/2",
+		"b/02",
+		"b/3",
+		"b/03",
+		"b1",
+		"b01",
+		"b3",
+		"c2.10",
+		"c10.2",
+		"d1",
+		"d12",
+		"d12a",
+	}
+	m := make(map[interface{}]int)
+	for _, k := range order {
+		m[k] = 1
+	}
+	data, err := yaml.Marshal(m)
+	c.Assert(err, IsNil)
+	out := "\n" + string(data)
+	last := 0
+	for i, k := range order {
+		repr := fmt.Sprint(k)
+		if s, ok := k.(string); ok {
+			if _, err = strconv.ParseFloat(repr, 32); s == "" || err == nil {
+				repr = `"` + repr + `"`
+			}
+		}
+		index := strings.Index(out, "\n"+repr+":")
+		if index == -1 {
+			c.Fatalf("%#v is not in the output: %#v", k, out)
+		}
+		if index < last {
+			c.Fatalf("%#v was generated before %#v: %q", k, order[i-1], out)
+		}
+		last = index
+	}
+}

Godeps/_workspace/src/github.com/coreos/yaml/readerc.go

@@ -0,0 +1,391 @@
+package yaml
+
+import (
+	"io"
+)
+
+// Set the reader error and return 0.
+func yaml_parser_set_reader_error(parser *yaml_parser_t, problem string, offset int, value int) bool {
+	parser.error = yaml_READER_ERROR
+	parser.problem = problem
+	parser.problem_offset = offset
+	parser.problem_value = value
+	return false
+}
+
+// Byte order marks.
+const (
+	bom_UTF8    = "\xef\xbb\xbf"
+	bom_UTF16LE = "\xff\xfe"
+	bom_UTF16BE = "\xfe\xff"
+)
+
+// Determine the input stream encoding by checking the BOM symbol. If no BOM is
+// found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure.
+func yaml_parser_determine_encoding(parser *yaml_parser_t) bool {
+	// Ensure that we had enough bytes in the raw buffer.
+	for !parser.eof && len(parser.raw_buffer)-parser.raw_buffer_pos < 3 {
+		if !yaml_parser_update_raw_buffer(parser) {
+			return false
+		}
+	}
+
+	// Determine the encoding.
+	buf := parser.raw_buffer
+	pos := parser.raw_buffer_pos
+	avail := len(buf) - pos
+	if avail >= 2 && buf[pos] == bom_UTF16LE[0] && buf[pos+1] == bom_UTF16LE[1] {
+		parser.encoding = yaml_UTF16LE_ENCODING
+		parser.raw_buffer_pos += 2
+		parser.offset += 2
+	} else if avail >= 2 && buf[pos] == bom_UTF16BE[0] && buf[pos+1] == bom_UTF16BE[1] {
+		parser.encoding = yaml_UTF16BE_ENCODING
+		parser.raw_buffer_pos += 2
+		parser.offset += 2
+	} else if avail >= 3 && buf[pos] == bom_UTF8[0] && buf[pos+1] == bom_UTF8[1] && buf[pos+2] == bom_UTF8[2] {
+		parser.encoding = yaml_UTF8_ENCODING
+		parser.raw_buffer_pos += 3
+		parser.offset += 3
+	} else {
+		parser.encoding = yaml_UTF8_ENCODING
+	}
+	return true
+}
+
+// Update the raw buffer.
+func yaml_parser_update_raw_buffer(parser *yaml_parser_t) bool {
+	size_read := 0
+
+	// Return if the raw buffer is full.
+	if parser.raw_buffer_pos == 0 && len(parser.raw_buffer) == cap(parser.raw_buffer) {
+		return true
+	}
+
+	// Return on EOF.
+	if parser.eof {
+		return true
+	}
+
+	// Move the remaining bytes in the raw buffer to the beginning.
+	if parser.raw_buffer_pos > 0 && parser.raw_buffer_pos < len(parser.raw_buffer) {
+		copy(parser.raw_buffer, parser.raw_buffer[parser.raw_buffer_pos:])
+	}
+	parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)-parser.raw_buffer_pos]
+	parser.raw_buffer_pos = 0
+
+	// Call the read handler to fill the buffer.
+	size_read, err := parser.read_handler(parser, parser.raw_buffer[len(parser.raw_buffer):cap(parser.raw_buffer)])
+	parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)+size_read]
+	if err == io.EOF {
+		parser.eof = true
+	} else if err != nil {
+		return yaml_parser_set_reader_error(parser, "input error: "+err.Error(), parser.offset, -1)
+	}
+	return true
+}
+
+// Ensure that the buffer contains at least `length` characters.
+// Return true on success, false on failure.
+//
+// The length is supposed to be significantly less that the buffer size.
+func yaml_parser_update_buffer(parser *yaml_parser_t, length int) bool {
+	if parser.read_handler == nil {
+		panic("read handler must be set")
+	}
+
+	// If the EOF flag is set and the raw buffer is empty, do nothing.
+	if parser.eof && parser.raw_buffer_pos == len(parser.raw_buffer) {
+		return true
+	}
+
+	// Return if the buffer contains enough characters.
+	if parser.unread >= length {
+		return true
+	}
+
+	// Determine the input encoding if it is not known yet.
+	if parser.encoding == yaml_ANY_ENCODING {
+		if !yaml_parser_determine_encoding(parser) {
+			return false
+		}
+	}
+
+	// Move the unread characters to the beginning of the buffer.
+	buffer_len := len(parser.buffer)
+	if parser.buffer_pos > 0 && parser.buffer_pos < buffer_len {
+		copy(parser.buffer, parser.buffer[parser.buffer_pos:])
+		buffer_len -= parser.buffer_pos
+		parser.buffer_pos = 0
+	} else if parser.buffer_pos == buffer_len {
+		buffer_len = 0
+		parser.buffer_pos = 0
+	}
+
+	// Open the whole buffer for writing, and cut it before returning.
+	parser.buffer = parser.buffer[:cap(parser.buffer)]
+
+	// Fill the buffer until it has enough characters.
+	first := true
+	for parser.unread < length {
+
+		// Fill the raw buffer if necessary.
+		if !first || parser.raw_buffer_pos == len(parser.raw_buffer) {
+			if !yaml_parser_update_raw_buffer(parser) {
+				parser.buffer = parser.buffer[:buffer_len]
+				return false
+			}
+		}
+		first = false
+
+		// Decode the raw buffer.
+	inner:
+		for parser.raw_buffer_pos != len(parser.raw_buffer) {
+			var value rune
+			var width int
+
+			raw_unread := len(parser.raw_buffer) - parser.raw_buffer_pos
+
+			// Decode the next character.
+			switch parser.encoding {
+			case yaml_UTF8_ENCODING:
+				// Decode a UTF-8 character.  Check RFC 3629
+				// (http://www.ietf.org/rfc/rfc3629.txt) for more details.
+				//
+				// The following table (taken from the RFC) is used for
+				// decoding.
+				//
+				//    Char. number range |        UTF-8 octet sequence
+				//      (hexadecimal)    |              (binary)
+				//   --------------------+------------------------------------
+				//   0000 0000-0000 007F | 0xxxxxxx
+				//   0000 0080-0000 07FF | 110xxxxx 10xxxxxx
+				//   0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
+				//   0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+				//
+				// Additionally, the characters in the range 0xD800-0xDFFF
+				// are prohibited as they are reserved for use with UTF-16
+				// surrogate pairs.
+
+				// Determine the length of the UTF-8 sequence.
+				octet := parser.raw_buffer[parser.raw_buffer_pos]
+				switch {
+				case octet&0x80 == 0x00:
+					width = 1
+				case octet&0xE0 == 0xC0:
+					width = 2
+				case octet&0xF0 == 0xE0:
+					width = 3
+				case octet&0xF8 == 0xF0:
+					width = 4
+				default:
+					// The leading octet is invalid.
+					return yaml_parser_set_reader_error(parser,
+						"invalid leading UTF-8 octet",
+						parser.offset, int(octet))
+				}
+
+				// Check if the raw buffer contains an incomplete character.
+				if width > raw_unread {
+					if parser.eof {
+						return yaml_parser_set_reader_error(parser,
+							"incomplete UTF-8 octet sequence",
+							parser.offset, -1)
+					}
+					break inner
+				}
+
+				// Decode the leading octet.
+				switch {
+				case octet&0x80 == 0x00:
+					value = rune(octet & 0x7F)
+				case octet&0xE0 == 0xC0:
+					value = rune(octet & 0x1F)
+				case octet&0xF0 == 0xE0:
+					value = rune(octet & 0x0F)
+				case octet&0xF8 == 0xF0:
+					value = rune(octet & 0x07)
+				default:
+					value = 0
+				}
+
+				// Check and decode the trailing octets.
+				for k := 1; k < width; k++ {
+					octet = parser.raw_buffer[parser.raw_buffer_pos+k]
+
+					// Check if the octet is valid.
+					if (octet & 0xC0) != 0x80 {
+						return yaml_parser_set_reader_error(parser,
+							"invalid trailing UTF-8 octet",
+							parser.offset+k, int(octet))
+					}
+
+					// Decode the octet.
+					value = (value << 6) + rune(octet&0x3F)
+				}
+
+				// Check the length of the sequence against the value.
+				switch {
+				case width == 1:
+				case width == 2 && value >= 0x80:
+				case width == 3 && value >= 0x800:
+				case width == 4 && value >= 0x10000:
+				default:
+					return yaml_parser_set_reader_error(parser,
+						"invalid length of a UTF-8 sequence",
+						parser.offset, -1)
+				}
+
+				// Check the range of the value.
+				if value >= 0xD800 && value <= 0xDFFF || value > 0x10FFFF {
+					return yaml_parser_set_reader_error(parser,
+						"invalid Unicode character",
+						parser.offset, int(value))
+				}
+
+			case yaml_UTF16LE_ENCODING, yaml_UTF16BE_ENCODING:
+				var low, high int
+				if parser.encoding == yaml_UTF16LE_ENCODING {
+					low, high = 0, 1
+				} else {
+					high, low = 1, 0
+				}
+
+				// The UTF-16 encoding is not as simple as one might
+				// naively think.  Check RFC 2781
+				// (http://www.ietf.org/rfc/rfc2781.txt).
+				//
+				// Normally, two subsequent bytes describe a Unicode
+				// character.  However a special technique (called a
+				// surrogate pair) is used for specifying character
+				// values larger than 0xFFFF.
+				//
+				// A surrogate pair consists of two pseudo-characters:
+				//      high surrogate area (0xD800-0xDBFF)
+				//      low surrogate area (0xDC00-0xDFFF)
+				//
+				// The following formulas are used for decoding
+				// and encoding characters using surrogate pairs:
+				//
+				//  U  = U' + 0x10000   (0x01 00 00 <= U <= 0x10 FF FF)
+				//  U' = yyyyyyyyyyxxxxxxxxxx   (0 <= U' <= 0x0F FF FF)
+				//  W1 = 110110yyyyyyyyyy
+				//  W2 = 110111xxxxxxxxxx
+				//
+				// where U is the character value, W1 is the high surrogate
+				// area, W2 is the low surrogate area.
+
+				// Check for incomplete UTF-16 character.
+				if raw_unread < 2 {
+					if parser.eof {
+						return yaml_parser_set_reader_error(parser,
+							"incomplete UTF-16 character",
+							parser.offset, -1)
+					}
+					break inner
+				}
+
+				// Get the character.
+				value = rune(parser.raw_buffer[parser.raw_buffer_pos+low]) +
+					(rune(parser.raw_buffer[parser.raw_buffer_pos+high]) << 8)
+
+				// Check for unexpected low surrogate area.
+				if value&0xFC00 == 0xDC00 {
+					return yaml_parser_set_reader_error(parser,
+						"unexpected low surrogate area",
+						parser.offset, int(value))
+				}
+
+				// Check for a high surrogate area.
+				if value&0xFC00 == 0xD800 {
+					width = 4
+
+					// Check for incomplete surrogate pair.
+					if raw_unread < 4 {
+						if parser.eof {
+							return yaml_parser_set_reader_error(parser,
+								"incomplete UTF-16 surrogate pair",
+								parser.offset, -1)
+						}
+						break inner
+					}
+
+					// Get the next character.
+					value2 := rune(parser.raw_buffer[parser.raw_buffer_pos+low+2]) +
+						(rune(parser.raw_buffer[parser.raw_buffer_pos+high+2]) << 8)
+
+					// Check for a low surrogate area.
+					if value2&0xFC00 != 0xDC00 {
+						return yaml_parser_set_reader_error(parser,
+							"expected low surrogate area",
+							parser.offset+2, int(value2))
+					}
+
+					// Generate the value of the surrogate pair.
+					value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF)
+				} else {
+					width = 2
+				}
+
+			default:
+				panic("impossible")
+			}
+
+			// Check if the character is in the allowed range:
+			//      #x9 | #xA | #xD | [#x20-#x7E]               (8 bit)
+			//      | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD]    (16 bit)
+			//      | [#x10000-#x10FFFF]                        (32 bit)
+			switch {
+			case value == 0x09:
+			case value == 0x0A:
+			case value == 0x0D:
+			case value >= 0x20 && value <= 0x7E:
+			case value == 0x85:
+			case value >= 0xA0 && value <= 0xD7FF:
+			case value >= 0xE000 && value <= 0xFFFD:
+			case value >= 0x10000 && value <= 0x10FFFF:
+			default:
+				return yaml_parser_set_reader_error(parser,
+					"control characters are not allowed",
+					parser.offset, int(value))
+			}
+
+			// Move the raw pointers.
+			parser.raw_buffer_pos += width
+			parser.offset += width
+
+			// Finally put the character into the buffer.
+			if value <= 0x7F {
+				// 0000 0000-0000 007F . 0xxxxxxx
+				parser.buffer[buffer_len+0] = byte(value)
+			} else if value <= 0x7FF {
+				// 0000 0080-0000 07FF . 110xxxxx 10xxxxxx
+				parser.buffer[buffer_len+0] = byte(0xC0 + (value >> 6))
+				parser.buffer[buffer_len+1] = byte(0x80 + (value & 0x3F))
+			} else if value <= 0xFFFF {
+				// 0000 0800-0000 FFFF . 1110xxxx 10xxxxxx 10xxxxxx
+				parser.buffer[buffer_len+0] = byte(0xE0 + (value >> 12))
+				parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 6) & 0x3F))
+				parser.buffer[buffer_len+2] = byte(0x80 + (value & 0x3F))
+			} else {
+				// 0001 0000-0010 FFFF . 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+				parser.buffer[buffer_len+0] = byte(0xF0 + (value >> 18))
+				parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 12) & 0x3F))
+				parser.buffer[buffer_len+2] = byte(0x80 + ((value >> 6) & 0x3F))
+				parser.buffer[buffer_len+3] = byte(0x80 + (value & 0x3F))
+			}
+			buffer_len += width
+
+			parser.unread++
+		}
+
+		// On EOF, put NUL into the buffer and return.
+		if parser.eof {
+			parser.buffer[buffer_len] = 0
+			buffer_len++
+			parser.unread++
+			break
+		}
+	}
+	parser.buffer = parser.buffer[:buffer_len]
+	return true
+}

Godeps/_workspace/src/github.com/coreos/yaml/resolve.go

@@ -0,0 +1,190 @@
+package yaml
+
+import (
+	"encoding/base64"
+	"fmt"
+	"math"
+	"strconv"
+	"strings"
+	"unicode/utf8"
+)
+
+// TODO: merge, timestamps, base 60 floats, omap.
+
+type resolveMapItem struct {
+	value interface{}
+	tag   string
+}
+
+var resolveTable = make([]byte, 256)
+var resolveMap = make(map[string]resolveMapItem)
+
+func init() {
+	t := resolveTable
+	t[int('+')] = 'S' // Sign
+	t[int('-')] = 'S'
+	for _, c := range "0123456789" {
+		t[int(c)] = 'D' // Digit
+	}
+	for _, c := range "yYnNtTfFoO~" {
+		t[int(c)] = 'M' // In map
+	}
+	t[int('.')] = '.' // Float (potentially in map)
+
+	var resolveMapList = []struct {
+		v   interface{}
+		tag string
+		l   []string
+	}{
+		{true, yaml_BOOL_TAG, []string{"y", "Y", "yes", "Yes", "YES"}},
+		{true, yaml_BOOL_TAG, []string{"true", "True", "TRUE"}},
+		{true, yaml_BOOL_TAG, []string{"on", "On", "ON"}},
+		{false, yaml_BOOL_TAG, []string{"n", "N", "no", "No", "NO"}},
+		{false, yaml_BOOL_TAG, []string{"false", "False", "FALSE"}},
+		{false, yaml_BOOL_TAG, []string{"off", "Off", "OFF"}},
+		{nil, yaml_NULL_TAG, []string{"", "~", "null", "Null", "NULL"}},
+		{math.NaN(), yaml_FLOAT_TAG, []string{".nan", ".NaN", ".NAN"}},
+		{math.Inf(+1), yaml_FLOAT_TAG, []string{".inf", ".Inf", ".INF"}},
+		{math.Inf(+1), yaml_FLOAT_TAG, []string{"+.inf", "+.Inf", "+.INF"}},
+		{math.Inf(-1), yaml_FLOAT_TAG, []string{"-.inf", "-.Inf", "-.INF"}},
+		{"<<", yaml_MERGE_TAG, []string{"<<"}},
+	}
+
+	m := resolveMap
+	for _, item := range resolveMapList {
+		for _, s := range item.l {
+			m[s] = resolveMapItem{item.v, item.tag}
+		}
+	}
+}
+
+const longTagPrefix = "tag:yaml.org,2002:"
+
+func shortTag(tag string) string {
+	// TODO This can easily be made faster and produce less garbage.
+	if strings.HasPrefix(tag, longTagPrefix) {
+		return "!!" + tag[len(longTagPrefix):]
+	}
+	return tag
+}
+
+func longTag(tag string) string {
+	if strings.HasPrefix(tag, "!!") {
+		return longTagPrefix + tag[2:]
+	}
+	return tag
+}
+
+func resolvableTag(tag string) bool {
+	switch tag {
+	case "", yaml_STR_TAG, yaml_BOOL_TAG, yaml_INT_TAG, yaml_FLOAT_TAG, yaml_NULL_TAG:
+		return true
+	}
+	return false
+}
+
+func resolve(tag string, in string) (rtag string, out interface{}) {
+	if !resolvableTag(tag) {
+		return tag, in
+	}
+
+	defer func() {
+		switch tag {
+		case "", rtag, yaml_STR_TAG, yaml_BINARY_TAG:
+			return
+		}
+		fail(fmt.Sprintf("cannot decode %s `%s` as a %s", shortTag(rtag), in, shortTag(tag)))
+	}()
+
+	// Any data is accepted as a !!str or !!binary.
+	// Otherwise, the prefix is enough of a hint about what it might be.
+	hint := byte('N')
+	if in != "" {
+		hint = resolveTable[in[0]]
+	}
+	if hint != 0 && tag != yaml_STR_TAG && tag != yaml_BINARY_TAG {
+		// Handle things we can lookup in a map.
+		if item, ok := resolveMap[in]; ok {
+			return item.tag, item.value
+		}
+
+		// Base 60 floats are a bad idea, were dropped in YAML 1.2, and
+		// are purposefully unsupported here. They're still quoted on
+		// the way out for compatibility with other parser, though.
+
+		switch hint {
+		case 'M':
+			// We've already checked the map above.
+
+		case '.':
+			// Not in the map, so maybe a normal float.
+			floatv, err := strconv.ParseFloat(in, 64)
+			if err == nil {
+				return yaml_FLOAT_TAG, floatv
+			}
+
+		case 'D', 'S':
+			// Int, float, or timestamp.
+			plain := strings.Replace(in, "_", "", -1)
+			intv, err := strconv.ParseInt(plain, 0, 64)
+			if err == nil {
+				if intv == int64(int(intv)) {
+					return yaml_INT_TAG, int(intv)
+				} else {
+					return yaml_INT_TAG, intv
+				}
+			}
+			floatv, err := strconv.ParseFloat(plain, 64)
+			if err == nil {
+				return yaml_FLOAT_TAG, floatv
+			}
+			if strings.HasPrefix(plain, "0b") {
+				intv, err := strconv.ParseInt(plain[2:], 2, 64)
+				if err == nil {
+					return yaml_INT_TAG, int(intv)
+				}
+			} else if strings.HasPrefix(plain, "-0b") {
+				intv, err := strconv.ParseInt(plain[3:], 2, 64)
+				if err == nil {
+					return yaml_INT_TAG, -int(intv)
+				}
+			}
+			// XXX Handle timestamps here.
+
+		default:
+			panic("resolveTable item not yet handled: " + string(rune(hint)) + " (with " + in + ")")
+		}
+	}
+	if tag == yaml_BINARY_TAG {
+		return yaml_BINARY_TAG, in
+	}
+	if utf8.ValidString(in) {
+		return yaml_STR_TAG, in
+	}
+	return yaml_BINARY_TAG, encodeBase64(in)
+}
+
+// encodeBase64 encodes s as base64 that is broken up into multiple lines
+// as appropriate for the resulting length.
+func encodeBase64(s string) string {
+	const lineLen = 70
+	encLen := base64.StdEncoding.EncodedLen(len(s))
+	lines := encLen/lineLen + 1
+	buf := make([]byte, encLen*2+lines)
+	in := buf[0:encLen]
+	out := buf[encLen:]
+	base64.StdEncoding.Encode(in, []byte(s))
+	k := 0
+	for i := 0; i < len(in); i += lineLen {
+		j := i + lineLen
+		if j > len(in) {
+			j = len(in)
+		}
+		k += copy(out[k:], in[i:j])
+		if lines > 1 {
+			out[k] = '\n'
+			k++
+		}
+	}
+	return string(out[:k])
+}

Godeps/_workspace/src/github.com/coreos/yaml/sorter.go

@@ -0,0 +1,104 @@
+package yaml
+
+import (
+	"reflect"
+	"unicode"
+)
+
+type keyList []reflect.Value
+
+func (l keyList) Len() int      { return len(l) }
+func (l keyList) Swap(i, j int) { l[i], l[j] = l[j], l[i] }
+func (l keyList) Less(i, j int) bool {
+	a := l[i]
+	b := l[j]
+	ak := a.Kind()
+	bk := b.Kind()
+	for (ak == reflect.Interface || ak == reflect.Ptr) && !a.IsNil() {
+		a = a.Elem()
+		ak = a.Kind()
+	}
+	for (bk == reflect.Interface || bk == reflect.Ptr) && !b.IsNil() {
+		b = b.Elem()
+		bk = b.Kind()
+	}
+	af, aok := keyFloat(a)
+	bf, bok := keyFloat(b)
+	if aok && bok {
+		if af != bf {
+			return af < bf
+		}
+		if ak != bk {
+			return ak < bk
+		}
+		return numLess(a, b)
+	}
+	if ak != reflect.String || bk != reflect.String {
+		return ak < bk
+	}
+	ar, br := []rune(a.String()), []rune(b.String())
+	for i := 0; i < len(ar) && i < len(br); i++ {
+		if ar[i] == br[i] {
+			continue
+		}
+		al := unicode.IsLetter(ar[i])
+		bl := unicode.IsLetter(br[i])
+		if al && bl {
+			return ar[i] < br[i]
+		}
+		if al || bl {
+			return bl
+		}
+		var ai, bi int
+		var an, bn int64
+		for ai = i; ai < len(ar) && unicode.IsDigit(ar[ai]); ai++ {
+			an = an*10 + int64(ar[ai]-'0')
+		}
+		for bi = i; bi < len(br) && unicode.IsDigit(br[bi]); bi++ {
+			bn = bn*10 + int64(br[bi]-'0')
+		}
+		if an != bn {
+			return an < bn
+		}
+		if ai != bi {
+			return ai < bi
+		}
+		return ar[i] < br[i]
+	}
+	return len(ar) < len(br)
+}
+
+// keyFloat returns a float value for v if it is a number/bool
+// and whether it is a number/bool or not.
+func keyFloat(v reflect.Value) (f float64, ok bool) {
+	switch v.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return float64(v.Int()), true
+	case reflect.Float32, reflect.Float64:
+		return v.Float(), true
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return float64(v.Uint()), true
+	case reflect.Bool:
+		if v.Bool() {
+			return 1, true
+		}
+		return 0, true
+	}
+	return 0, false
+}
+
+// numLess returns whether a < b.
+// a and b must necessarily have the same kind.
+func numLess(a, b reflect.Value) bool {
+	switch a.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return a.Int() < b.Int()
+	case reflect.Float32, reflect.Float64:
+		return a.Float() < b.Float()
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return a.Uint() < b.Uint()
+	case reflect.Bool:
+		return !a.Bool() && b.Bool()
+	}
+	panic("not a number")
+}

Godeps/_workspace/src/github.com/coreos/yaml/suite_test.go

@@ -0,0 +1,12 @@
+package yaml_test
+
+import (
+	. "gopkg.in/check.v1"
+	"testing"
+)
+
+func Test(t *testing.T) { TestingT(t) }
+
+type S struct{}
+
+var _ = Suite(&S{})

Godeps/_workspace/src/github.com/coreos/yaml/writerc.go

@@ -0,0 +1,89 @@
+package yaml
+
+// Set the writer error and return false.
+func yaml_emitter_set_writer_error(emitter *yaml_emitter_t, problem string) bool {
+	emitter.error = yaml_WRITER_ERROR
+	emitter.problem = problem
+	return false
+}
+
+// Flush the output buffer.
+func yaml_emitter_flush(emitter *yaml_emitter_t) bool {
+	if emitter.write_handler == nil {
+		panic("write handler not set")
+	}
+
+	// Check if the buffer is empty.
+	if emitter.buffer_pos == 0 {
+		return true
+	}
+
+	// If the output encoding is UTF-8, we don't need to recode the buffer.
+	if emitter.encoding == yaml_UTF8_ENCODING {
+		if err := emitter.write_handler(emitter, emitter.buffer[:emitter.buffer_pos]); err != nil {
+			return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
+		}
+		emitter.buffer_pos = 0
+		return true
+	}
+
+	// Recode the buffer into the raw buffer.
+	var low, high int
+	if emitter.encoding == yaml_UTF16LE_ENCODING {
+		low, high = 0, 1
+	} else {
+		high, low = 1, 0
+	}
+
+	pos := 0
+	for pos < emitter.buffer_pos {
+		// See the "reader.c" code for more details on UTF-8 encoding.  Note
+		// that we assume that the buffer contains a valid UTF-8 sequence.
+
+		// Read the next UTF-8 character.
+		octet := emitter.buffer[pos]
+
+		var w int
+		var value rune
+		switch {
+		case octet&0x80 == 0x00:
+			w, value = 1, rune(octet&0x7F)
+		case octet&0xE0 == 0xC0:
+			w, value = 2, rune(octet&0x1F)
+		case octet&0xF0 == 0xE0:
+			w, value = 3, rune(octet&0x0F)
+		case octet&0xF8 == 0xF0:
+			w, value = 4, rune(octet&0x07)
+		}
+		for k := 1; k < w; k++ {
+			octet = emitter.buffer[pos+k]
+			value = (value << 6) + (rune(octet) & 0x3F)
+		}
+		pos += w
+
+		// Write the character.
+		if value < 0x10000 {
+			var b [2]byte
+			b[high] = byte(value >> 8)
+			b[low] = byte(value & 0xFF)
+			emitter.raw_buffer = append(emitter.raw_buffer, b[0], b[1])
+		} else {
+			// Write the character using a surrogate pair (check "reader.c").
+			var b [4]byte
+			value -= 0x10000
+			b[high] = byte(0xD8 + (value >> 18))
+			b[low] = byte((value >> 10) & 0xFF)
+			b[high+2] = byte(0xDC + ((value >> 8) & 0xFF))
+			b[low+2] = byte(value & 0xFF)
+			emitter.raw_buffer = append(emitter.raw_buffer, b[0], b[1], b[2], b[3])
+		}
+	}
+
+	// Write the raw buffer.
+	if err := emitter.write_handler(emitter, emitter.raw_buffer); err != nil {
+		return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
+	}
+	emitter.buffer_pos = 0
+	emitter.raw_buffer = emitter.raw_buffer[:0]
+	return true
+}

Godeps/_workspace/src/github.com/coreos/yaml/yaml.go

@@ -0,0 +1,312 @@
+// Package yaml implements YAML support for the Go language.
+//
+// Source code and other details for the project are available at GitHub:
+//
+//   https://github.com/go-yaml/yaml
+//
+package yaml
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"strings"
+	"sync"
+)
+
+type yamlError string
+
+func fail(msg string) {
+	panic(yamlError(msg))
+}
+
+func handleErr(err *error) {
+	if r := recover(); r != nil {
+		if e, ok := r.(yamlError); ok {
+			*err = errors.New("YAML error: " + string(e))
+		} else {
+			panic(r)
+		}
+	}
+}
+
+// The Setter interface may be implemented by types to do their own custom
+// unmarshalling of YAML values, rather than being implicitly assigned by
+// the yaml package machinery. If setting the value works, the method should
+// return true.  If it returns false, the value is considered unsupported
+// and is omitted from maps and slices.
+type Setter interface {
+	SetYAML(tag string, value interface{}) bool
+}
+
+// The Getter interface is implemented by types to do their own custom
+// marshalling into a YAML tag and value.
+type Getter interface {
+	GetYAML() (tag string, value interface{})
+}
+
+// Unmarshal decodes the first document found within the in byte slice
+// and assigns decoded values into the out value.
+//
+// Maps and pointers (to a struct, string, int, etc) are accepted as out
+// values.  If an internal pointer within a struct is not initialized,
+// the yaml package will initialize it if necessary for unmarshalling
+// the provided data. The out parameter must not be nil.
+//
+// The type of the decoded values and the type of out will be considered,
+// and Unmarshal will do the best possible job to unmarshal values
+// appropriately.  It is NOT considered an error, though, to skip values
+// because they are not available in the decoded YAML, or if they are not
+// compatible with the out value. To ensure something was properly
+// unmarshaled use a map or compare against the previous value for the
+// field (usually the zero value).
+//
+// Struct fields are only unmarshalled if they are exported (have an
+// upper case first letter), and are unmarshalled using the field name
+// lowercased as the default key. Custom keys may be defined via the
+// "yaml" name in the field tag: the content preceding the first comma
+// is used as the key, and the following comma-separated options are
+// used to tweak the marshalling process (see Marshal).
+// Conflicting names result in a runtime error.
+//
+// For example:
+//
+//     type T struct {
+//         F int `yaml:"a,omitempty"`
+//         B int
+//     }
+//     var t T
+//     yaml.Unmarshal([]byte("a: 1\nb: 2"), &t)
+//
+// See the documentation of Marshal for the format of tags and a list of
+// supported tag options.
+//
+func Unmarshal(in []byte, out interface{}) (err error) {
+	defer handleErr(&err)
+	d := newDecoder()
+	p := newParser(in, UnmarshalMappingKeyTransform)
+	defer p.destroy()
+	node := p.parse()
+	if node != nil {
+		v := reflect.ValueOf(out)
+		if v.Kind() == reflect.Ptr && !v.IsNil() {
+			v = v.Elem()
+		}
+		d.unmarshal(node, v)
+	}
+	return nil
+}
+
+// Marshal serializes the value provided into a YAML document. The structure
+// of the generated document will reflect the structure of the value itself.
+// Maps and pointers (to struct, string, int, etc) are accepted as the in value.
+//
+// Struct fields are only unmarshalled if they are exported (have an upper case
+// first letter), and are unmarshalled using the field name lowercased as the
+// default key. Custom keys may be defined via the "yaml" name in the field
+// tag: the content preceding the first comma is used as the key, and the
+// following comma-separated options are used to tweak the marshalling process.
+// Conflicting names result in a runtime error.
+//
+// The field tag format accepted is:
+//
+//     `(...) yaml:"[<key>][,<flag1>[,<flag2>]]" (...)`
+//
+// The following flags are currently supported:
+//
+//     omitempty    Only include the field if it's not set to the zero
+//                  value for the type or to empty slices or maps.
+//                  Does not apply to zero valued structs.
+//
+//     flow         Marshal using a flow style (useful for structs,
+//                  sequences and maps.
+//
+//     inline       Inline the struct it's applied to, so its fields
+//                  are processed as if they were part of the outer
+//                  struct.
+//
+// In addition, if the key is "-", the field is ignored.
+//
+// For example:
+//
+//     type T struct {
+//         F int "a,omitempty"
+//         B int
+//     }
+//     yaml.Marshal(&T{B: 2}) // Returns "b: 2\n"
+//     yaml.Marshal(&T{F: 1}} // Returns "a: 1\nb: 0\n"
+//
+func Marshal(in interface{}) (out []byte, err error) {
+	defer handleErr(&err)
+	e := newEncoder()
+	defer e.destroy()
+	e.marshal("", reflect.ValueOf(in))
+	e.finish()
+	out = e.out
+	return
+}
+
+// UnmarshalMappingKeyTransform is a string transformation that is applied to
+// each mapping key in a YAML document before it is unmarshalled. By default,
+// UnmarshalMappingKeyTransform is an identity transform (no modification).
+var UnmarshalMappingKeyTransform transformString = identityTransform
+
+type transformString func(in string) (out string)
+
+func identityTransform(in string) (out string) {
+	return in
+}
+
+// --------------------------------------------------------------------------
+// Maintain a mapping of keys to structure field indexes
+
+// The code in this section was copied from mgo/bson.
+
+// structInfo holds details for the serialization of fields of
+// a given struct.
+type structInfo struct {
+	FieldsMap  map[string]fieldInfo
+	FieldsList []fieldInfo
+
+	// InlineMap is the number of the field in the struct that
+	// contains an ,inline map, or -1 if there's none.
+	InlineMap int
+}
+
+type fieldInfo struct {
+	Key       string
+	Num       int
+	OmitEmpty bool
+	Flow      bool
+
+	// Inline holds the field index if the field is part of an inlined struct.
+	Inline []int
+}
+
+var structMap = make(map[reflect.Type]*structInfo)
+var fieldMapMutex sync.RWMutex
+
+func getStructInfo(st reflect.Type) (*structInfo, error) {
+	fieldMapMutex.RLock()
+	sinfo, found := structMap[st]
+	fieldMapMutex.RUnlock()
+	if found {
+		return sinfo, nil
+	}
+
+	n := st.NumField()
+	fieldsMap := make(map[string]fieldInfo)
+	fieldsList := make([]fieldInfo, 0, n)
+	inlineMap := -1
+	for i := 0; i != n; i++ {
+		field := st.Field(i)
+		if field.PkgPath != "" {
+			continue // Private field
+		}
+
+		info := fieldInfo{Num: i}
+
+		tag := field.Tag.Get("yaml")
+		if tag == "" && strings.Index(string(field.Tag), ":") < 0 {
+			tag = string(field.Tag)
+		}
+		if tag == "-" {
+			continue
+		}
+
+		inline := false
+		fields := strings.Split(tag, ",")
+		if len(fields) > 1 {
+			for _, flag := range fields[1:] {
+				switch flag {
+				case "omitempty":
+					info.OmitEmpty = true
+				case "flow":
+					info.Flow = true
+				case "inline":
+					inline = true
+				default:
+					return nil, errors.New(fmt.Sprintf("Unsupported flag %q in tag %q of type %s", flag, tag, st))
+				}
+			}
+			tag = fields[0]
+		}
+
+		if inline {
+			switch field.Type.Kind() {
+			// TODO: Implement support for inline maps.
+			//case reflect.Map:
+			//	if inlineMap >= 0 {
+			//		return nil, errors.New("Multiple ,inline maps in struct " + st.String())
+			//	}
+			//	if field.Type.Key() != reflect.TypeOf("") {
+			//		return nil, errors.New("Option ,inline needs a map with string keys in struct " + st.String())
+			//	}
+			//	inlineMap = info.Num
+			case reflect.Struct:
+				sinfo, err := getStructInfo(field.Type)
+				if err != nil {
+					return nil, err
+				}
+				for _, finfo := range sinfo.FieldsList {
+					if _, found := fieldsMap[finfo.Key]; found {
+						msg := "Duplicated key '" + finfo.Key + "' in struct " + st.String()
+						return nil, errors.New(msg)
+					}
+					if finfo.Inline == nil {
+						finfo.Inline = []int{i, finfo.Num}
+					} else {
+						finfo.Inline = append([]int{i}, finfo.Inline...)
+					}
+					fieldsMap[finfo.Key] = finfo
+					fieldsList = append(fieldsList, finfo)
+				}
+			default:
+				//return nil, errors.New("Option ,inline needs a struct value or map field")
+				return nil, errors.New("Option ,inline needs a struct value field")
+			}
+			continue
+		}
+
+		if tag != "" {
+			info.Key = tag
+		} else {
+			info.Key = strings.ToLower(field.Name)
+		}
+
+		if _, found = fieldsMap[info.Key]; found {
+			msg := "Duplicated key '" + info.Key + "' in struct " + st.String()
+			return nil, errors.New(msg)
+		}
+
+		fieldsList = append(fieldsList, info)
+		fieldsMap[info.Key] = info
+	}
+
+	sinfo = &structInfo{fieldsMap, fieldsList, inlineMap}
+
+	fieldMapMutex.Lock()
+	structMap[st] = sinfo
+	fieldMapMutex.Unlock()
+	return sinfo, nil
+}
+
+func isZero(v reflect.Value) bool {
+	switch v.Kind() {
+	case reflect.String:
+		return len(v.String()) == 0
+	case reflect.Interface, reflect.Ptr:
+		return v.IsNil()
+	case reflect.Slice:
+		return v.Len() == 0
+	case reflect.Map:
+		return v.Len() == 0
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return v.Int() == 0
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return v.Uint() == 0
+	case reflect.Bool:
+		return !v.Bool()
+	}
+	return false
+}

Godeps/_workspace/src/github.com/coreos/yaml/yamlh.go

@@ -0,0 +1,716 @@
+package yaml
+
+import (
+	"io"
+)
+
+// The version directive data.
+type yaml_version_directive_t struct {
+	major int8 // The major version number.
+	minor int8 // The minor version number.
+}
+
+// The tag directive data.
+type yaml_tag_directive_t struct {
+	handle []byte // The tag handle.
+	prefix []byte // The tag prefix.
+}
+
+type yaml_encoding_t int
+
+// The stream encoding.
+const (
+	// Let the parser choose the encoding.
+	yaml_ANY_ENCODING yaml_encoding_t = iota
+
+	yaml_UTF8_ENCODING    // The default UTF-8 encoding.
+	yaml_UTF16LE_ENCODING // The UTF-16-LE encoding with BOM.
+	yaml_UTF16BE_ENCODING // The UTF-16-BE encoding with BOM.
+)
+
+type yaml_break_t int
+
+// Line break types.
+const (
+	// Let the parser choose the break type.
+	yaml_ANY_BREAK yaml_break_t = iota
+
+	yaml_CR_BREAK   // Use CR for line breaks (Mac style).
+	yaml_LN_BREAK   // Use LN for line breaks (Unix style).
+	yaml_CRLN_BREAK // Use CR LN for line breaks (DOS style).
+)
+
+type yaml_error_type_t int
+
+// Many bad things could happen with the parser and emitter.
+const (
+	// No error is produced.
+	yaml_NO_ERROR yaml_error_type_t = iota
+
+	yaml_MEMORY_ERROR   // Cannot allocate or reallocate a block of memory.
+	yaml_READER_ERROR   // Cannot read or decode the input stream.
+	yaml_SCANNER_ERROR  // Cannot scan the input stream.
+	yaml_PARSER_ERROR   // Cannot parse the input stream.
+	yaml_COMPOSER_ERROR // Cannot compose a YAML document.
+	yaml_WRITER_ERROR   // Cannot write to the output stream.
+	yaml_EMITTER_ERROR  // Cannot emit a YAML stream.
+)
+
+// The pointer position.
+type yaml_mark_t struct {
+	index  int // The position index.
+	line   int // The position line.
+	column int // The position column.
+}
+
+// Node Styles
+
+type yaml_style_t int8
+
+type yaml_scalar_style_t yaml_style_t
+
+// Scalar styles.
+const (
+	// Let the emitter choose the style.
+	yaml_ANY_SCALAR_STYLE yaml_scalar_style_t = iota
+
+	yaml_PLAIN_SCALAR_STYLE         // The plain scalar style.
+	yaml_SINGLE_QUOTED_SCALAR_STYLE // The single-quoted scalar style.
+	yaml_DOUBLE_QUOTED_SCALAR_STYLE // The double-quoted scalar style.
+	yaml_LITERAL_SCALAR_STYLE       // The literal scalar style.
+	yaml_FOLDED_SCALAR_STYLE        // The folded scalar style.
+)
+
+type yaml_sequence_style_t yaml_style_t
+
+// Sequence styles.
+const (
+	// Let the emitter choose the style.
+	yaml_ANY_SEQUENCE_STYLE yaml_sequence_style_t = iota
+
+	yaml_BLOCK_SEQUENCE_STYLE // The block sequence style.
+	yaml_FLOW_SEQUENCE_STYLE  // The flow sequence style.
+)
+
+type yaml_mapping_style_t yaml_style_t
+
+// Mapping styles.
+const (
+	// Let the emitter choose the style.
+	yaml_ANY_MAPPING_STYLE yaml_mapping_style_t = iota
+
+	yaml_BLOCK_MAPPING_STYLE // The block mapping style.
+	yaml_FLOW_MAPPING_STYLE  // The flow mapping style.
+)
+
+// Tokens
+
+type yaml_token_type_t int
+
+// Token types.
+const (
+	// An empty token.
+	yaml_NO_TOKEN yaml_token_type_t = iota
+
+	yaml_STREAM_START_TOKEN // A STREAM-START token.
+	yaml_STREAM_END_TOKEN   // A STREAM-END token.
+
+	yaml_VERSION_DIRECTIVE_TOKEN // A VERSION-DIRECTIVE token.
+	yaml_TAG_DIRECTIVE_TOKEN     // A TAG-DIRECTIVE token.
+	yaml_DOCUMENT_START_TOKEN    // A DOCUMENT-START token.
+	yaml_DOCUMENT_END_TOKEN      // A DOCUMENT-END token.
+
+	yaml_BLOCK_SEQUENCE_START_TOKEN // A BLOCK-SEQUENCE-START token.
+	yaml_BLOCK_MAPPING_START_TOKEN  // A BLOCK-SEQUENCE-END token.
+	yaml_BLOCK_END_TOKEN            // A BLOCK-END token.
+
+	yaml_FLOW_SEQUENCE_START_TOKEN // A FLOW-SEQUENCE-START token.
+	yaml_FLOW_SEQUENCE_END_TOKEN   // A FLOW-SEQUENCE-END token.
+	yaml_FLOW_MAPPING_START_TOKEN  // A FLOW-MAPPING-START token.
+	yaml_FLOW_MAPPING_END_TOKEN    // A FLOW-MAPPING-END token.
+
+	yaml_BLOCK_ENTRY_TOKEN // A BLOCK-ENTRY token.
+	yaml_FLOW_ENTRY_TOKEN  // A FLOW-ENTRY token.
+	yaml_KEY_TOKEN         // A KEY token.
+	yaml_VALUE_TOKEN       // A VALUE token.
+
+	yaml_ALIAS_TOKEN  // An ALIAS token.
+	yaml_ANCHOR_TOKEN // An ANCHOR token.
+	yaml_TAG_TOKEN    // A TAG token.
+	yaml_SCALAR_TOKEN // A SCALAR token.
+)
+
+func (tt yaml_token_type_t) String() string {
+	switch tt {
+	case yaml_NO_TOKEN:
+		return "yaml_NO_TOKEN"
+	case yaml_STREAM_START_TOKEN:
+		return "yaml_STREAM_START_TOKEN"
+	case yaml_STREAM_END_TOKEN:
+		return "yaml_STREAM_END_TOKEN"
+	case yaml_VERSION_DIRECTIVE_TOKEN:
+		return "yaml_VERSION_DIRECTIVE_TOKEN"
+	case yaml_TAG_DIRECTIVE_TOKEN:
+		return "yaml_TAG_DIRECTIVE_TOKEN"
+	case yaml_DOCUMENT_START_TOKEN:
+		return "yaml_DOCUMENT_START_TOKEN"
+	case yaml_DOCUMENT_END_TOKEN:
+		return "yaml_DOCUMENT_END_TOKEN"
+	case yaml_BLOCK_SEQUENCE_START_TOKEN:
+		return "yaml_BLOCK_SEQUENCE_START_TOKEN"
+	case yaml_BLOCK_MAPPING_START_TOKEN:
+		return "yaml_BLOCK_MAPPING_START_TOKEN"
+	case yaml_BLOCK_END_TOKEN:
+		return "yaml_BLOCK_END_TOKEN"
+	case yaml_FLOW_SEQUENCE_START_TOKEN:
+		return "yaml_FLOW_SEQUENCE_START_TOKEN"
+	case yaml_FLOW_SEQUENCE_END_TOKEN:
+		return "yaml_FLOW_SEQUENCE_END_TOKEN"
+	case yaml_FLOW_MAPPING_START_TOKEN:
+		return "yaml_FLOW_MAPPING_START_TOKEN"
+	case yaml_FLOW_MAPPING_END_TOKEN:
+		return "yaml_FLOW_MAPPING_END_TOKEN"
+	case yaml_BLOCK_ENTRY_TOKEN:
+		return "yaml_BLOCK_ENTRY_TOKEN"
+	case yaml_FLOW_ENTRY_TOKEN:
+		return "yaml_FLOW_ENTRY_TOKEN"
+	case yaml_KEY_TOKEN:
+		return "yaml_KEY_TOKEN"
+	case yaml_VALUE_TOKEN:
+		return "yaml_VALUE_TOKEN"
+	case yaml_ALIAS_TOKEN:
+		return "yaml_ALIAS_TOKEN"
+	case yaml_ANCHOR_TOKEN:
+		return "yaml_ANCHOR_TOKEN"
+	case yaml_TAG_TOKEN:
+		return "yaml_TAG_TOKEN"
+	case yaml_SCALAR_TOKEN:
+		return "yaml_SCALAR_TOKEN"
+	}
+	return "<unknown token>"
+}
+
+// The token structure.
+type yaml_token_t struct {
+	// The token type.
+	typ yaml_token_type_t
+
+	// The start/end of the token.
+	start_mark, end_mark yaml_mark_t
+
+	// The stream encoding (for yaml_STREAM_START_TOKEN).
+	encoding yaml_encoding_t
+
+	// The alias/anchor/scalar value or tag/tag directive handle
+	// (for yaml_ALIAS_TOKEN, yaml_ANCHOR_TOKEN, yaml_SCALAR_TOKEN, yaml_TAG_TOKEN, yaml_TAG_DIRECTIVE_TOKEN).
+	value []byte
+
+	// The tag suffix (for yaml_TAG_TOKEN).
+	suffix []byte
+
+	// The tag directive prefix (for yaml_TAG_DIRECTIVE_TOKEN).
+	prefix []byte
+
+	// The scalar style (for yaml_SCALAR_TOKEN).
+	style yaml_scalar_style_t
+
+	// The version directive major/minor (for yaml_VERSION_DIRECTIVE_TOKEN).
+	major, minor int8
+}
+
+// Events
+
+type yaml_event_type_t int8
+
+// Event types.
+const (
+	// An empty event.
+	yaml_NO_EVENT yaml_event_type_t = iota
+
+	yaml_STREAM_START_EVENT   // A STREAM-START event.
+	yaml_STREAM_END_EVENT     // A STREAM-END event.
+	yaml_DOCUMENT_START_EVENT // A DOCUMENT-START event.
+	yaml_DOCUMENT_END_EVENT   // A DOCUMENT-END event.
+	yaml_ALIAS_EVENT          // An ALIAS event.
+	yaml_SCALAR_EVENT         // A SCALAR event.
+	yaml_SEQUENCE_START_EVENT // A SEQUENCE-START event.
+	yaml_SEQUENCE_END_EVENT   // A SEQUENCE-END event.
+	yaml_MAPPING_START_EVENT  // A MAPPING-START event.
+	yaml_MAPPING_END_EVENT    // A MAPPING-END event.
+)
+
+// The event structure.
+type yaml_event_t struct {
+
+	// The event type.
+	typ yaml_event_type_t
+
+	// The start and end of the event.
+	start_mark, end_mark yaml_mark_t
+
+	// The document encoding (for yaml_STREAM_START_EVENT).
+	encoding yaml_encoding_t
+
+	// The version directive (for yaml_DOCUMENT_START_EVENT).
+	version_directive *yaml_version_directive_t
+
+	// The list of tag directives (for yaml_DOCUMENT_START_EVENT).
+	tag_directives []yaml_tag_directive_t
+
+	// The anchor (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_ALIAS_EVENT).
+	anchor []byte
+
+	// The tag (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
+	tag []byte
+
+	// The scalar value (for yaml_SCALAR_EVENT).
+	value []byte
+
+	// Is the document start/end indicator implicit, or the tag optional?
+	// (for yaml_DOCUMENT_START_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_SCALAR_EVENT).
+	implicit bool
+
+	// Is the tag optional for any non-plain style? (for yaml_SCALAR_EVENT).
+	quoted_implicit bool
+
+	// The style (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
+	style yaml_style_t
+}
+
+func (e *yaml_event_t) scalar_style() yaml_scalar_style_t     { return yaml_scalar_style_t(e.style) }
+func (e *yaml_event_t) sequence_style() yaml_sequence_style_t { return yaml_sequence_style_t(e.style) }
+func (e *yaml_event_t) mapping_style() yaml_mapping_style_t   { return yaml_mapping_style_t(e.style) }
+
+// Nodes
+
+const (
+	yaml_NULL_TAG      = "tag:yaml.org,2002:null"      // The tag !!null with the only possible value: null.
+	yaml_BOOL_TAG      = "tag:yaml.org,2002:bool"      // The tag !!bool with the values: true and false.
+	yaml_STR_TAG       = "tag:yaml.org,2002:str"       // The tag !!str for string values.
+	yaml_INT_TAG       = "tag:yaml.org,2002:int"       // The tag !!int for integer values.
+	yaml_FLOAT_TAG     = "tag:yaml.org,2002:float"     // The tag !!float for float values.
+	yaml_TIMESTAMP_TAG = "tag:yaml.org,2002:timestamp" // The tag !!timestamp for date and time values.
+
+	yaml_SEQ_TAG = "tag:yaml.org,2002:seq" // The tag !!seq is used to denote sequences.
+	yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping.
+
+	// Not in original libyaml.
+	yaml_BINARY_TAG = "tag:yaml.org,2002:binary"
+	yaml_MERGE_TAG = "tag:yaml.org,2002:merge"
+
+	yaml_DEFAULT_SCALAR_TAG   = yaml_STR_TAG // The default scalar tag is !!str.
+	yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq.
+	yaml_DEFAULT_MAPPING_TAG  = yaml_MAP_TAG // The default mapping tag is !!map.
+)
+
+type yaml_node_type_t int
+
+// Node types.
+const (
+	// An empty node.
+	yaml_NO_NODE yaml_node_type_t = iota
+
+	yaml_SCALAR_NODE   // A scalar node.
+	yaml_SEQUENCE_NODE // A sequence node.
+	yaml_MAPPING_NODE  // A mapping node.
+)
+
+// An element of a sequence node.
+type yaml_node_item_t int
+
+// An element of a mapping node.
+type yaml_node_pair_t struct {
+	key   int // The key of the element.
+	value int // The value of the element.
+}
+
+// The node structure.
+type yaml_node_t struct {
+	typ yaml_node_type_t // The node type.
+	tag []byte           // The node tag.
+
+	// The node data.
+
+	// The scalar parameters (for yaml_SCALAR_NODE).
+	scalar struct {
+		value  []byte              // The scalar value.
+		length int                 // The length of the scalar value.
+		style  yaml_scalar_style_t // The scalar style.
+	}
+
+	// The sequence parameters (for YAML_SEQUENCE_NODE).
+	sequence struct {
+		items_data []yaml_node_item_t    // The stack of sequence items.
+		style      yaml_sequence_style_t // The sequence style.
+	}
+
+	// The mapping parameters (for yaml_MAPPING_NODE).
+	mapping struct {
+		pairs_data  []yaml_node_pair_t   // The stack of mapping pairs (key, value).
+		pairs_start *yaml_node_pair_t    // The beginning of the stack.
+		pairs_end   *yaml_node_pair_t    // The end of the stack.
+		pairs_top   *yaml_node_pair_t    // The top of the stack.
+		style       yaml_mapping_style_t // The mapping style.
+	}
+
+	start_mark yaml_mark_t // The beginning of the node.
+	end_mark   yaml_mark_t // The end of the node.
+
+}
+
+// The document structure.
+type yaml_document_t struct {
+
+	// The document nodes.
+	nodes []yaml_node_t
+
+	// The version directive.
+	version_directive *yaml_version_directive_t
+
+	// The list of tag directives.
+	tag_directives_data  []yaml_tag_directive_t
+	tag_directives_start int // The beginning of the tag directives list.
+	tag_directives_end   int // The end of the tag directives list.
+
+	start_implicit int // Is the document start indicator implicit?
+	end_implicit   int // Is the document end indicator implicit?
+
+	// The start/end of the document.
+	start_mark, end_mark yaml_mark_t
+}
+
+// The prototype of a read handler.
+//
+// The read handler is called when the parser needs to read more bytes from the
+// source. The handler should write not more than size bytes to the buffer.
+// The number of written bytes should be set to the size_read variable.
+//
+// [in,out]   data        A pointer to an application data specified by
+//                        yaml_parser_set_input().
+// [out]      buffer      The buffer to write the data from the source.
+// [in]       size        The size of the buffer.
+// [out]      size_read   The actual number of bytes read from the source.
+//
+// On success, the handler should return 1.  If the handler failed,
+// the returned value should be 0. On EOF, the handler should set the
+// size_read to 0 and return 1.
+type yaml_read_handler_t func(parser *yaml_parser_t, buffer []byte) (n int, err error)
+
+// This structure holds information about a potential simple key.
+type yaml_simple_key_t struct {
+	possible     bool        // Is a simple key possible?
+	required     bool        // Is a simple key required?
+	token_number int         // The number of the token.
+	mark         yaml_mark_t // The position mark.
+}
+
+// The states of the parser.
+type yaml_parser_state_t int
+
+const (
+	yaml_PARSE_STREAM_START_STATE yaml_parser_state_t = iota
+
+	yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE           // Expect the beginning of an implicit document.
+	yaml_PARSE_DOCUMENT_START_STATE                    // Expect DOCUMENT-START.
+	yaml_PARSE_DOCUMENT_CONTENT_STATE                  // Expect the content of a document.
+	yaml_PARSE_DOCUMENT_END_STATE                      // Expect DOCUMENT-END.
+	yaml_PARSE_BLOCK_NODE_STATE                        // Expect a block node.
+	yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE // Expect a block node or indentless sequence.
+	yaml_PARSE_FLOW_NODE_STATE                         // Expect a flow node.
+	yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE        // Expect the first entry of a block sequence.
+	yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE              // Expect an entry of a block sequence.
+	yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE         // Expect an entry of an indentless sequence.
+	yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE           // Expect the first key of a block mapping.
+	yaml_PARSE_BLOCK_MAPPING_KEY_STATE                 // Expect a block mapping key.
+	yaml_PARSE_BLOCK_MAPPING_VALUE_STATE               // Expect a block mapping value.
+	yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE         // Expect the first entry of a flow sequence.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE               // Expect an entry of a flow sequence.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE   // Expect a key of an ordered mapping.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE // Expect a value of an ordered mapping.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE   // Expect the and of an ordered mapping entry.
+	yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE            // Expect the first key of a flow mapping.
+	yaml_PARSE_FLOW_MAPPING_KEY_STATE                  // Expect a key of a flow mapping.
+	yaml_PARSE_FLOW_MAPPING_VALUE_STATE                // Expect a value of a flow mapping.
+	yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE          // Expect an empty value of a flow mapping.
+	yaml_PARSE_END_STATE                               // Expect nothing.
+)
+
+func (ps yaml_parser_state_t) String() string {
+	switch ps {
+	case yaml_PARSE_STREAM_START_STATE:
+		return "yaml_PARSE_STREAM_START_STATE"
+	case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
+		return "yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE"
+	case yaml_PARSE_DOCUMENT_START_STATE:
+		return "yaml_PARSE_DOCUMENT_START_STATE"
+	case yaml_PARSE_DOCUMENT_CONTENT_STATE:
+		return "yaml_PARSE_DOCUMENT_CONTENT_STATE"
+	case yaml_PARSE_DOCUMENT_END_STATE:
+		return "yaml_PARSE_DOCUMENT_END_STATE"
+	case yaml_PARSE_BLOCK_NODE_STATE:
+		return "yaml_PARSE_BLOCK_NODE_STATE"
+	case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
+		return "yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE"
+	case yaml_PARSE_FLOW_NODE_STATE:
+		return "yaml_PARSE_FLOW_NODE_STATE"
+	case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
+		return "yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE"
+	case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
+		return "yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE"
+	case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
+		return "yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE"
+	case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
+		return "yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE"
+	case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
+		return "yaml_PARSE_BLOCK_MAPPING_KEY_STATE"
+	case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
+		return "yaml_PARSE_BLOCK_MAPPING_VALUE_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE"
+	case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE"
+	case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_KEY_STATE"
+	case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_VALUE_STATE"
+	case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE"
+	case yaml_PARSE_END_STATE:
+		return "yaml_PARSE_END_STATE"
+	}
+	return "<unknown parser state>"
+}
+
+// This structure holds aliases data.
+type yaml_alias_data_t struct {
+	anchor []byte      // The anchor.
+	index  int         // The node id.
+	mark   yaml_mark_t // The anchor mark.
+}
+
+// The parser structure.
+//
+// All members are internal. Manage the structure using the
+// yaml_parser_ family of functions.
+type yaml_parser_t struct {
+
+	// Error handling
+
+	error yaml_error_type_t // Error type.
+
+	problem string // Error description.
+
+	// The byte about which the problem occured.
+	problem_offset int
+	problem_value  int
+	problem_mark   yaml_mark_t
+
+	// The error context.
+	context      string
+	context_mark yaml_mark_t
+
+	// Reader stuff
+
+	read_handler yaml_read_handler_t // Read handler.
+
+	input_file io.Reader // File input data.
+	input      []byte    // String input data.
+	input_pos  int
+
+	eof bool // EOF flag
+
+	buffer     []byte // The working buffer.
+	buffer_pos int    // The current position of the buffer.
+
+	unread int // The number of unread characters in the buffer.
+
+	raw_buffer     []byte // The raw buffer.
+	raw_buffer_pos int    // The current position of the buffer.
+
+	encoding yaml_encoding_t // The input encoding.
+
+	offset int         // The offset of the current position (in bytes).
+	mark   yaml_mark_t // The mark of the current position.
+
+	// Scanner stuff
+
+	stream_start_produced bool // Have we started to scan the input stream?
+	stream_end_produced   bool // Have we reached the end of the input stream?
+
+	flow_level int // The number of unclosed '[' and '{' indicators.
+
+	tokens          []yaml_token_t // The tokens queue.
+	tokens_head     int            // The head of the tokens queue.
+	tokens_parsed   int            // The number of tokens fetched from the queue.
+	token_available bool           // Does the tokens queue contain a token ready for dequeueing.
+
+	indent  int   // The current indentation level.
+	indents []int // The indentation levels stack.
+
+	simple_key_allowed bool                // May a simple key occur at the current position?
+	simple_keys        []yaml_simple_key_t // The stack of simple keys.
+
+	// Parser stuff
+
+	state          yaml_parser_state_t    // The current parser state.
+	states         []yaml_parser_state_t  // The parser states stack.
+	marks          []yaml_mark_t          // The stack of marks.
+	tag_directives []yaml_tag_directive_t // The list of TAG directives.
+
+	// Dumper stuff
+
+	aliases []yaml_alias_data_t // The alias data.
+
+	document *yaml_document_t // The currently parsed document.
+}
+
+// Emitter Definitions
+
+// The prototype of a write handler.
+//
+// The write handler is called when the emitter needs to flush the accumulated
+// characters to the output.  The handler should write @a size bytes of the
+// @a buffer to the output.
+//
+// @param[in,out]   data        A pointer to an application data specified by
+//                              yaml_emitter_set_output().
+// @param[in]       buffer      The buffer with bytes to be written.
+// @param[in]       size        The size of the buffer.
+//
+// @returns On success, the handler should return @c 1.  If the handler failed,
+// the returned value should be @c 0.
+//
+type yaml_write_handler_t func(emitter *yaml_emitter_t, buffer []byte) error
+
+type yaml_emitter_state_t int
+
+// The emitter states.
+const (
+	// Expect STREAM-START.
+	yaml_EMIT_STREAM_START_STATE yaml_emitter_state_t = iota
+
+	yaml_EMIT_FIRST_DOCUMENT_START_STATE       // Expect the first DOCUMENT-START or STREAM-END.
+	yaml_EMIT_DOCUMENT_START_STATE             // Expect DOCUMENT-START or STREAM-END.
+	yaml_EMIT_DOCUMENT_CONTENT_STATE           // Expect the content of a document.
+	yaml_EMIT_DOCUMENT_END_STATE               // Expect DOCUMENT-END.
+	yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE   // Expect the first item of a flow sequence.
+	yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE         // Expect an item of a flow sequence.
+	yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE     // Expect the first key of a flow mapping.
+	yaml_EMIT_FLOW_MAPPING_KEY_STATE           // Expect a key of a flow mapping.
+	yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE  // Expect a value for a simple key of a flow mapping.
+	yaml_EMIT_FLOW_MAPPING_VALUE_STATE         // Expect a value of a flow mapping.
+	yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE  // Expect the first item of a block sequence.
+	yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE        // Expect an item of a block sequence.
+	yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE    // Expect the first key of a block mapping.
+	yaml_EMIT_BLOCK_MAPPING_KEY_STATE          // Expect the key of a block mapping.
+	yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a block mapping.
+	yaml_EMIT_BLOCK_MAPPING_VALUE_STATE        // Expect a value of a block mapping.
+	yaml_EMIT_END_STATE                        // Expect nothing.
+)
+
+// The emitter structure.
+//
+// All members are internal.  Manage the structure using the @c yaml_emitter_
+// family of functions.
+type yaml_emitter_t struct {
+
+	// Error handling
+
+	error   yaml_error_type_t // Error type.
+	problem string            // Error description.
+
+	// Writer stuff
+
+	write_handler yaml_write_handler_t // Write handler.
+
+	output_buffer *[]byte   // String output data.
+	output_file   io.Writer // File output data.
+
+	buffer     []byte // The working buffer.
+	buffer_pos int    // The current position of the buffer.
+
+	raw_buffer     []byte // The raw buffer.
+	raw_buffer_pos int    // The current position of the buffer.
+
+	encoding yaml_encoding_t // The stream encoding.
+
+	// Emitter stuff
+
+	canonical   bool         // If the output is in the canonical style?
+	best_indent int          // The number of indentation spaces.
+	best_width  int          // The preferred width of the output lines.
+	unicode     bool         // Allow unescaped non-ASCII characters?
+	line_break  yaml_break_t // The preferred line break.
+
+	state  yaml_emitter_state_t   // The current emitter state.
+	states []yaml_emitter_state_t // The stack of states.
+
+	events      []yaml_event_t // The event queue.
+	events_head int            // The head of the event queue.
+
+	indents []int // The stack of indentation levels.
+
+	tag_directives []yaml_tag_directive_t // The list of tag directives.
+
+	indent int // The current indentation level.
+
+	flow_level int // The current flow level.
+
+	root_context       bool // Is it the document root context?
+	sequence_context   bool // Is it a sequence context?
+	mapping_context    bool // Is it a mapping context?
+	simple_key_context bool // Is it a simple mapping key context?
+
+	line       int  // The current line.
+	column     int  // The current column.
+	whitespace bool // If the last character was a whitespace?
+	indention  bool // If the last character was an indentation character (' ', '-', '?', ':')?
+	open_ended bool // If an explicit document end is required?
+
+	// Anchor analysis.
+	anchor_data struct {
+		anchor []byte // The anchor value.
+		alias  bool   // Is it an alias?
+	}
+
+	// Tag analysis.
+	tag_data struct {
+		handle []byte // The tag handle.
+		suffix []byte // The tag suffix.
+	}
+
+	// Scalar analysis.
+	scalar_data struct {
+		value                 []byte              // The scalar value.
+		multiline             bool                // Does the scalar contain line breaks?
+		flow_plain_allowed    bool                // Can the scalar be expessed in the flow plain style?
+		block_plain_allowed   bool                // Can the scalar be expressed in the block plain style?
+		single_quoted_allowed bool                // Can the scalar be expressed in the single quoted style?
+		block_allowed         bool                // Can the scalar be expressed in the literal or folded styles?
+		style                 yaml_scalar_style_t // The output style.
+	}
+
+	// Dumper stuff
+
+	opened bool // If the stream was already opened?
+	closed bool // If the stream was already closed?
+
+	// The information associated with the document nodes.
+	anchors *struct {
+		references int  // The number of references.
+		anchor     int  // The anchor id.
+		serialized bool // If the node has been emitted?
+	}
+
+	last_anchor_id int // The last assigned anchor id.
+
+	document *yaml_document_t // The currently emitted document.
+}

Godeps/_workspace/src/github.com/coreos/yaml/yamlprivateh.go

@@ -0,0 +1,173 @@
+package yaml
+
+const (
+	// The size of the input raw buffer.
+	input_raw_buffer_size = 512
+
+	// The size of the input buffer.
+	// It should be possible to decode the whole raw buffer.
+	input_buffer_size = input_raw_buffer_size * 3
+
+	// The size of the output buffer.
+	output_buffer_size = 128
+
+	// The size of the output raw buffer.
+	// It should be possible to encode the whole output buffer.
+	output_raw_buffer_size = (output_buffer_size*2 + 2)
+
+	// The size of other stacks and queues.
+	initial_stack_size  = 16
+	initial_queue_size  = 16
+	initial_string_size = 16
+)
+
+// Check if the character at the specified position is an alphabetical
+// character, a digit, '_', or '-'.
+func is_alpha(b []byte, i int) bool {
+	return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'Z' || b[i] >= 'a' && b[i] <= 'z' || b[i] == '_' || b[i] == '-'
+}
+
+// Check if the character at the specified position is a digit.
+func is_digit(b []byte, i int) bool {
+	return b[i] >= '0' && b[i] <= '9'
+}
+
+// Get the value of a digit.
+func as_digit(b []byte, i int) int {
+	return int(b[i]) - '0'
+}
+
+// Check if the character at the specified position is a hex-digit.
+func is_hex(b []byte, i int) bool {
+	return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'F' || b[i] >= 'a' && b[i] <= 'f'
+}
+
+// Get the value of a hex-digit.
+func as_hex(b []byte, i int) int {
+	bi := b[i]
+	if bi >= 'A' && bi <= 'F' {
+		return int(bi) - 'A' + 10
+	}
+	if bi >= 'a' && bi <= 'f' {
+		return int(bi) - 'a' + 10
+	}
+	return int(bi) - '0'
+}
+
+// Check if the character is ASCII.
+func is_ascii(b []byte, i int) bool {
+	return b[i] <= 0x7F
+}
+
+// Check if the character at the start of the buffer can be printed unescaped.
+func is_printable(b []byte, i int) bool {
+	return ((b[i] == 0x0A) || // . == #x0A
+		(b[i] >= 0x20 && b[i] <= 0x7E) || // #x20 <= . <= #x7E
+		(b[i] == 0xC2 && b[i+1] >= 0xA0) || // #0xA0 <= . <= #xD7FF
+		(b[i] > 0xC2 && b[i] < 0xED) ||
+		(b[i] == 0xED && b[i+1] < 0xA0) ||
+		(b[i] == 0xEE) ||
+		(b[i] == 0xEF && // #xE000 <= . <= #xFFFD
+			!(b[i+1] == 0xBB && b[i+2] == 0xBF) && // && . != #xFEFF
+			!(b[i+1] == 0xBF && (b[i+2] == 0xBE || b[i+2] == 0xBF))))
+}
+
+// Check if the character at the specified position is NUL.
+func is_z(b []byte, i int) bool {
+	return b[i] == 0x00
+}
+
+// Check if the beginning of the buffer is a BOM.
+func is_bom(b []byte, i int) bool {
+	return b[0] == 0xEF && b[1] == 0xBB && b[2] == 0xBF
+}
+
+// Check if the character at the specified position is space.
+func is_space(b []byte, i int) bool {
+	return b[i] == ' '
+}
+
+// Check if the character at the specified position is tab.
+func is_tab(b []byte, i int) bool {
+	return b[i] == '\t'
+}
+
+// Check if the character at the specified position is blank (space or tab).
+func is_blank(b []byte, i int) bool {
+	//return is_space(b, i) || is_tab(b, i)
+	return b[i] == ' ' || b[i] == '\t'
+}
+
+// Check if the character at the specified position is a line break.
+func is_break(b []byte, i int) bool {
+	return (b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9) // PS (#x2029)
+}
+
+func is_crlf(b []byte, i int) bool {
+	return b[i] == '\r' && b[i+1] == '\n'
+}
+
+// Check if the character is a line break or NUL.
+func is_breakz(b []byte, i int) bool {
+	//return is_break(b, i) || is_z(b, i)
+	return (        // is_break:
+	b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+		// is_z:
+		b[i] == 0)
+}
+
+// Check if the character is a line break, space, or NUL.
+func is_spacez(b []byte, i int) bool {
+	//return is_space(b, i) || is_breakz(b, i)
+	return ( // is_space:
+	b[i] == ' ' ||
+		// is_breakz:
+		b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+		b[i] == 0)
+}
+
+// Check if the character is a line break, space, tab, or NUL.
+func is_blankz(b []byte, i int) bool {
+	//return is_blank(b, i) || is_breakz(b, i)
+	return ( // is_blank:
+	b[i] == ' ' || b[i] == '\t' ||
+		// is_breakz:
+		b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+		b[i] == 0)
+}
+
+// Determine the width of the character.
+func width(b byte) int {
+	// Don't replace these by a switch without first
+	// confirming that it is being inlined.
+	if b&0x80 == 0x00 {
+		return 1
+	}
+	if b&0xE0 == 0xC0 {
+		return 2
+	}
+	if b&0xF0 == 0xE0 {
+		return 3
+	}
+	if b&0xF8 == 0xF0 {
+		return 4
+	}
+	return 0
+
+}