vendorify
diff --git a/go/vendor/github.com/go-openapi/spec/ref.go b/go/vendor/github.com/go-openapi/spec/ref.go
new file mode 100644
index 0000000..1405bfd
--- /dev/null
+++ b/go/vendor/github.com/go-openapi/spec/ref.go
@@ -0,0 +1,167 @@
+// Copyright 2015 go-swagger maintainers
+//
+// 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 spec
+
+import (
+ "encoding/json"
+ "net/http"
+ "os"
+ "path/filepath"
+
+ "github.com/go-openapi/jsonreference"
+)
+
+// Refable is a struct for things that accept a $ref property
+type Refable struct {
+ Ref Ref
+}
+
+// MarshalJSON marshals the ref to json
+func (r Refable) MarshalJSON() ([]byte, error) {
+ return r.Ref.MarshalJSON()
+}
+
+// UnmarshalJSON unmarshalss the ref from json
+func (r *Refable) UnmarshalJSON(d []byte) error {
+ return json.Unmarshal(d, &r.Ref)
+}
+
+// Ref represents a json reference that is potentially resolved
+type Ref struct {
+ jsonreference.Ref
+}
+
+// RemoteURI gets the remote uri part of the ref
+func (r *Ref) RemoteURI() string {
+ if r.String() == "" {
+ return r.String()
+ }
+
+ u := *r.GetURL()
+ u.Fragment = ""
+ return u.String()
+}
+
+// IsValidURI returns true when the url the ref points to can be found
+func (r *Ref) IsValidURI(basepaths ...string) bool {
+ if r.String() == "" {
+ return true
+ }
+
+ v := r.RemoteURI()
+ if v == "" {
+ return true
+ }
+
+ if r.HasFullURL {
+ rr, err := http.Get(v)
+ if err != nil {
+ return false
+ }
+
+ return rr.StatusCode/100 == 2
+ }
+
+ if !(r.HasFileScheme || r.HasFullFilePath || r.HasURLPathOnly) {
+ return false
+ }
+
+ // check for local file
+ pth := v
+ if r.HasURLPathOnly {
+ base := "."
+ if len(basepaths) > 0 {
+ base = filepath.Dir(filepath.Join(basepaths...))
+ }
+ p, e := filepath.Abs(filepath.ToSlash(filepath.Join(base, pth)))
+ if e != nil {
+ return false
+ }
+ pth = p
+ }
+
+ fi, err := os.Stat(filepath.ToSlash(pth))
+ if err != nil {
+ return false
+ }
+
+ return !fi.IsDir()
+}
+
+// Inherits creates a new reference from a parent and a child
+// If the child cannot inherit from the parent, an error is returned
+func (r *Ref) Inherits(child Ref) (*Ref, error) {
+ ref, err := r.Ref.Inherits(child.Ref)
+ if err != nil {
+ return nil, err
+ }
+ return &Ref{Ref: *ref}, nil
+}
+
+// NewRef creates a new instance of a ref object
+// returns an error when the reference uri is an invalid uri
+func NewRef(refURI string) (Ref, error) {
+ ref, err := jsonreference.New(refURI)
+ if err != nil {
+ return Ref{}, err
+ }
+ return Ref{Ref: ref}, nil
+}
+
+// MustCreateRef creates a ref object but panics when refURI is invalid.
+// Use the NewRef method for a version that returns an error.
+func MustCreateRef(refURI string) Ref {
+ return Ref{Ref: jsonreference.MustCreateRef(refURI)}
+}
+
+// MarshalJSON marshals this ref into a JSON object
+func (r Ref) MarshalJSON() ([]byte, error) {
+ str := r.String()
+ if str == "" {
+ if r.IsRoot() {
+ return []byte(`{"$ref":""}`), nil
+ }
+ return []byte("{}"), nil
+ }
+ v := map[string]interface{}{"$ref": str}
+ return json.Marshal(v)
+}
+
+// UnmarshalJSON unmarshals this ref from a JSON object
+func (r *Ref) UnmarshalJSON(d []byte) error {
+ var v map[string]interface{}
+ if err := json.Unmarshal(d, &v); err != nil {
+ return err
+ }
+ return r.fromMap(v)
+}
+
+func (r *Ref) fromMap(v map[string]interface{}) error {
+ if v == nil {
+ return nil
+ }
+
+ if vv, ok := v["$ref"]; ok {
+ if str, ok := vv.(string); ok {
+ ref, err := jsonreference.New(str)
+ if err != nil {
+ return err
+ }
+ *r = Ref{Ref: ref}
+ }
+ }
+
+ return nil
+}