Use vendored go-swagger (#8087)

* Use vendored go-swagger

* vendor go-swagger

* revert un wanteed change

* remove un-needed GO111MODULE

* Update Makefile

Co-Authored-By: techknowlogick <matti@mdranta.net>

vendor/github.com/go-openapi/swag/yaml.go

@@ -0,0 +1,246 @@
+// 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 swag
+
+import (
+	"encoding/json"
+	"fmt"
+	"path/filepath"
+	"strconv"
+
+	"github.com/mailru/easyjson/jlexer"
+	"github.com/mailru/easyjson/jwriter"
+	yaml "gopkg.in/yaml.v2"
+)
+
+// YAMLMatcher matches yaml
+func YAMLMatcher(path string) bool {
+	ext := filepath.Ext(path)
+	return ext == ".yaml" || ext == ".yml"
+}
+
+// YAMLToJSON converts YAML unmarshaled data into json compatible data
+func YAMLToJSON(data interface{}) (json.RawMessage, error) {
+	jm, err := transformData(data)
+	if err != nil {
+		return nil, err
+	}
+	b, err := WriteJSON(jm)
+	return json.RawMessage(b), err
+}
+
+// BytesToYAMLDoc converts a byte slice into a YAML document
+func BytesToYAMLDoc(data []byte) (interface{}, error) {
+	var canary map[interface{}]interface{} // validate this is an object and not a different type
+	if err := yaml.Unmarshal(data, &canary); err != nil {
+		return nil, err
+	}
+
+	var document yaml.MapSlice // preserve order that is present in the document
+	if err := yaml.Unmarshal(data, &document); err != nil {
+		return nil, err
+	}
+	return document, nil
+}
+
+// JSONMapSlice represent a JSON object, with the order of keys maintained
+type JSONMapSlice []JSONMapItem
+
+// MarshalJSON renders a JSONMapSlice as JSON
+func (s JSONMapSlice) MarshalJSON() ([]byte, error) {
+	w := &jwriter.Writer{Flags: jwriter.NilMapAsEmpty | jwriter.NilSliceAsEmpty}
+	s.MarshalEasyJSON(w)
+	return w.BuildBytes()
+}
+
+// MarshalEasyJSON renders a JSONMapSlice as JSON, using easyJSON
+func (s JSONMapSlice) MarshalEasyJSON(w *jwriter.Writer) {
+	w.RawByte('{')
+
+	ln := len(s)
+	last := ln - 1
+	for i := 0; i < ln; i++ {
+		s[i].MarshalEasyJSON(w)
+		if i != last { // last item
+			w.RawByte(',')
+		}
+	}
+
+	w.RawByte('}')
+}
+
+// UnmarshalJSON makes a JSONMapSlice from JSON
+func (s *JSONMapSlice) UnmarshalJSON(data []byte) error {
+	l := jlexer.Lexer{Data: data}
+	s.UnmarshalEasyJSON(&l)
+	return l.Error()
+}
+
+// UnmarshalEasyJSON makes a JSONMapSlice from JSON, using easyJSON
+func (s *JSONMapSlice) UnmarshalEasyJSON(in *jlexer.Lexer) {
+	if in.IsNull() {
+		in.Skip()
+		return
+	}
+
+	var result JSONMapSlice
+	in.Delim('{')
+	for !in.IsDelim('}') {
+		var mi JSONMapItem
+		mi.UnmarshalEasyJSON(in)
+		result = append(result, mi)
+	}
+	*s = result
+}
+
+// JSONMapItem represents the value of a key in a JSON object held by JSONMapSlice
+type JSONMapItem struct {
+	Key   string
+	Value interface{}
+}
+
+// MarshalJSON renders a JSONMapItem as JSON
+func (s JSONMapItem) MarshalJSON() ([]byte, error) {
+	w := &jwriter.Writer{Flags: jwriter.NilMapAsEmpty | jwriter.NilSliceAsEmpty}
+	s.MarshalEasyJSON(w)
+	return w.BuildBytes()
+}
+
+// MarshalEasyJSON renders a JSONMapItem as JSON, using easyJSON
+func (s JSONMapItem) MarshalEasyJSON(w *jwriter.Writer) {
+	w.String(s.Key)
+	w.RawByte(':')
+	w.Raw(WriteJSON(s.Value))
+}
+
+// UnmarshalJSON makes a JSONMapItem from JSON
+func (s *JSONMapItem) UnmarshalJSON(data []byte) error {
+	l := jlexer.Lexer{Data: data}
+	s.UnmarshalEasyJSON(&l)
+	return l.Error()
+}
+
+// UnmarshalEasyJSON makes a JSONMapItem from JSON, using easyJSON
+func (s *JSONMapItem) UnmarshalEasyJSON(in *jlexer.Lexer) {
+	key := in.UnsafeString()
+	in.WantColon()
+	value := in.Interface()
+	in.WantComma()
+	s.Key = key
+	s.Value = value
+}
+
+func transformData(input interface{}) (out interface{}, err error) {
+	format := func(t interface{}) (string, error) {
+		switch k := t.(type) {
+		case string:
+			return k, nil
+		case uint:
+			return strconv.FormatUint(uint64(k), 10), nil
+		case uint8:
+			return strconv.FormatUint(uint64(k), 10), nil
+		case uint16:
+			return strconv.FormatUint(uint64(k), 10), nil
+		case uint32:
+			return strconv.FormatUint(uint64(k), 10), nil
+		case uint64:
+			return strconv.FormatUint(k, 10), nil
+		case int:
+			return strconv.Itoa(k), nil
+		case int8:
+			return strconv.FormatInt(int64(k), 10), nil
+		case int16:
+			return strconv.FormatInt(int64(k), 10), nil
+		case int32:
+			return strconv.FormatInt(int64(k), 10), nil
+		case int64:
+			return strconv.FormatInt(k, 10), nil
+		default:
+			return "", fmt.Errorf("unexpected map key type, got: %T", k)
+		}
+	}
+
+	switch in := input.(type) {
+	case yaml.MapSlice:
+
+		o := make(JSONMapSlice, len(in))
+		for i, mi := range in {
+			var nmi JSONMapItem
+			if nmi.Key, err = format(mi.Key); err != nil {
+				return nil, err
+			}
+
+			v, ert := transformData(mi.Value)
+			if ert != nil {
+				return nil, ert
+			}
+			nmi.Value = v
+			o[i] = nmi
+		}
+		return o, nil
+	case map[interface{}]interface{}:
+		o := make(JSONMapSlice, 0, len(in))
+		for ke, va := range in {
+			var nmi JSONMapItem
+			if nmi.Key, err = format(ke); err != nil {
+				return nil, err
+			}
+
+			v, ert := transformData(va)
+			if ert != nil {
+				return nil, ert
+			}
+			nmi.Value = v
+			o = append(o, nmi)
+		}
+		return o, nil
+	case []interface{}:
+		len1 := len(in)
+		o := make([]interface{}, len1)
+		for i := 0; i < len1; i++ {
+			o[i], err = transformData(in[i])
+			if err != nil {
+				return nil, err
+			}
+		}
+		return o, nil
+	}
+	return input, nil
+}
+
+// YAMLDoc loads a yaml document from either http or a file and converts it to json
+func YAMLDoc(path string) (json.RawMessage, error) {
+	yamlDoc, err := YAMLData(path)
+	if err != nil {
+		return nil, err
+	}
+
+	data, err := YAMLToJSON(yamlDoc)
+	if err != nil {
+		return nil, err
+	}
+
+	return data, nil
+}
+
+// YAMLData loads a yaml document from either http or a file
+func YAMLData(path string) (interface{}, error) {
+	data, err := LoadFromFileOrHTTP(path)
+	if err != nil {
+		return nil, err
+	}
+
+	return BytesToYAMLDoc(data)
+}