Add gnostic to Godep

vendor/github.com/googleapis/gnostic/compiler/helpers.go

@@ -0,0 +1,193 @@
+// Copyright 2017 Google Inc. All Rights Reserved.
+//
+// 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 compiler
+
+import (
+	"fmt"
+	"gopkg.in/yaml.v2"
+	"regexp"
+	"sort"
+	"strings"
+)
+
+// compiler helper functions, usually called from generated code
+
+func UnpackMap(in interface{}) (yaml.MapSlice, bool) {
+	m, ok := in.(yaml.MapSlice)
+	if ok {
+		return m, ok
+	} else {
+		// do we have an empty array?
+		a, ok := in.([]interface{})
+		if ok && len(a) == 0 {
+			// if so, return an empty map
+			return yaml.MapSlice{}, ok
+		} else {
+			return nil, ok
+		}
+	}
+}
+
+func SortedKeysForMap(m yaml.MapSlice) []string {
+	keys := make([]string, 0)
+	for _, item := range m {
+		keys = append(keys, item.Key.(string))
+	}
+	sort.Strings(keys)
+	return keys
+}
+
+func MapHasKey(m yaml.MapSlice, key string) bool {
+	for _, item := range m {
+		itemKey, ok := item.Key.(string)
+		if ok && key == itemKey {
+			return true
+		}
+	}
+	return false
+}
+
+func MapValueForKey(m yaml.MapSlice, key string) interface{} {
+	for _, item := range m {
+		itemKey, ok := item.Key.(string)
+		if ok && key == itemKey {
+			return item.Value
+		}
+	}
+	return nil
+}
+
+func ConvertInterfaceArrayToStringArray(interfaceArray []interface{}) []string {
+	stringArray := make([]string, 0)
+	for _, item := range interfaceArray {
+		v, ok := item.(string)
+		if ok {
+			stringArray = append(stringArray, v)
+		}
+	}
+	return stringArray
+}
+
+func PatternMatches(pattern string, value string) bool {
+	// if pattern contains a subpattern like "{path}", replace it with ".*"
+	if pattern[0] != '^' {
+		subpatternPattern := regexp.MustCompile("^.*(\\{.*\\}).*$")
+		if matches := subpatternPattern.FindSubmatch([]byte(pattern)); matches != nil {
+			match := string(matches[1])
+			pattern = strings.Replace(pattern, match, ".*", -1)
+		}
+	}
+	matched, err := regexp.Match(pattern, []byte(value))
+	if err != nil {
+		panic(err)
+	}
+	return matched
+}
+
+func MissingKeysInMap(m yaml.MapSlice, requiredKeys []string) []string {
+	missingKeys := make([]string, 0)
+	for _, k := range requiredKeys {
+		if !MapHasKey(m, k) {
+			missingKeys = append(missingKeys, k)
+		}
+	}
+	return missingKeys
+}
+
+func InvalidKeysInMap(m yaml.MapSlice, allowedKeys []string, allowedPatterns []string) []string {
+	invalidKeys := make([]string, 0)
+	for _, item := range m {
+		itemKey, ok := item.Key.(string)
+		if ok {
+			key := itemKey
+			found := false
+			// does the key match an allowed key?
+			for _, allowedKey := range allowedKeys {
+				if key == allowedKey {
+					found = true
+					break
+				}
+			}
+			if !found {
+				// does the key match an allowed pattern?
+				for _, allowedPattern := range allowedPatterns {
+					if PatternMatches(allowedPattern, key) {
+						found = true
+						break
+					}
+				}
+				if !found {
+					invalidKeys = append(invalidKeys, key)
+				}
+			}
+		}
+	}
+	return invalidKeys
+}
+
+// describe a map (for debugging purposes)
+func DescribeMap(in interface{}, indent string) string {
+	description := ""
+	m, ok := in.(map[string]interface{})
+	if ok {
+		keys := make([]string, 0)
+		for k, _ := range m {
+			keys = append(keys, k)
+		}
+		sort.Strings(keys)
+		for _, k := range keys {
+			v := m[k]
+			description += fmt.Sprintf("%s%s:\n", indent, k)
+			description += DescribeMap(v, indent+"  ")
+		}
+		return description
+	}
+	a, ok := in.([]interface{})
+	if ok {
+		for i, v := range a {
+			description += fmt.Sprintf("%s%d:\n", indent, i)
+			description += DescribeMap(v, indent+"  ")
+		}
+		return description
+	}
+	description += fmt.Sprintf("%s%+v\n", indent, in)
+	return description
+}
+
+func PluralProperties(count int) string {
+	if count == 1 {
+		return "property"
+	} else {
+		return "properties"
+	}
+}
+
+func StringArrayContainsValue(array []string, value string) bool {
+	for _, item := range array {
+		if item == value {
+			return true
+		}
+	}
+	return false
+}
+
+func StringArrayContainsValues(array []string, values []string) bool {
+	for _, value := range values {
+		if !StringArrayContainsValue(array, value) {
+			return false
+		}
+	}
+	return true
+}