Move deps from _workspace/ to vendor/

godep restore
pushd $GOPATH/src/github.com/appc/spec
git co master
popd
go get go4.org/errorutil
rm -rf Godeps
godep save ./...
git add vendor
git add -f $(git ls-files --other vendor/)
git co -- Godeps/LICENSES Godeps/.license_file_state Godeps/OWNERS

vendor/github.com/docker/engine-api/client/transport/client.go

@@ -0,0 +1,47 @@
+package transport
+
+import (
+	"crypto/tls"
+	"net/http"
+)
+
+// Sender is an interface that clients must implement
+// to be able to send requests to a remote connection.
+type Sender interface {
+	// Do sends request to a remote endpoint.
+	Do(*http.Request) (*http.Response, error)
+}
+
+// Client is an interface that abstracts all remote connections.
+type Client interface {
+	Sender
+	// Secure tells whether the connection is secure or not.
+	Secure() bool
+	// Scheme returns the connection protocol the client uses.
+	Scheme() string
+	// TLSConfig returns any TLS configuration the client uses.
+	TLSConfig() *tls.Config
+}
+
+// tlsInfo returns information about the TLS configuration.
+type tlsInfo struct {
+	tlsConfig *tls.Config
+}
+
+// TLSConfig returns the TLS configuration.
+func (t *tlsInfo) TLSConfig() *tls.Config {
+	return t.tlsConfig
+}
+
+// Scheme returns protocol scheme to use.
+func (t *tlsInfo) Scheme() string {
+	if t.tlsConfig != nil {
+		return "https"
+	}
+	return "http"
+}
+
+// Secure returns true if there is a TLS configuration.
+func (t *tlsInfo) Secure() bool {
+	return t.tlsConfig != nil
+}