Set To Do branch

1 files changed, 0 insertions, 698 deletions

diff --git a/vendor/gopkg.in/yaml.v3/yaml.go b/vendor/gopkg.in/yaml.v3/yaml.go
deleted file mode 100644
index 8cec6da..0000000
--- a/vendor/gopkg.in/yaml.v3/yaml.go
+++ /dev/null
@@ -1,698 +0,0 @@
-//
-// Copyright (c) 2011-2019 Canonical Ltd
-//
-// 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 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"
-	"io"
-	"reflect"
-	"strings"
-	"sync"
-	"unicode/utf8"
-)
-
-// The Unmarshaler interface may be implemented by types to customize their
-// behavior when being unmarshaled from a YAML document.
-type Unmarshaler interface {
-	UnmarshalYAML(value *Node) error
-}
-
-type obsoleteUnmarshaler interface {
-	UnmarshalYAML(unmarshal func(interface{}) error) error
-}
-
-// The Marshaler interface may be implemented by types to customize their
-// behavior when being marshaled into a YAML document. The returned value
-// is marshaled in place of the original value implementing Marshaler.
-//
-// If an error is returned by MarshalYAML, the marshaling procedure stops
-// and returns with the provided error.
-type Marshaler interface {
-	MarshalYAML() (interface{}, error)
-}
-
-// 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 should be compatible with the respective
-// values in out. If one or more values cannot be decoded due to a type
-// mismatches, decoding continues partially until the end of the YAML
-// content, and a *yaml.TypeError is returned with details for all
-// missed values.
-//
-// 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) {
-	return unmarshal(in, out, false)
-}
-
-// A Decoder reads and decodes YAML values from an input stream.
-type Decoder struct {
-	parser      *parser
-	knownFields bool
-}
-
-// NewDecoder returns a new decoder that reads from r.
-//
-// The decoder introduces its own buffering and may read
-// data from r beyond the YAML values requested.
-func NewDecoder(r io.Reader) *Decoder {
-	return &Decoder{
-		parser: newParserFromReader(r),
-	}
-}
-
-// KnownFields ensures that the keys in decoded mappings to
-// exist as fields in the struct being decoded into.
-func (dec *Decoder) KnownFields(enable bool) {
-	dec.knownFields = enable
-}
-
-// Decode reads the next YAML-encoded value from its input
-// and stores it in the value pointed to by v.
-//
-// See the documentation for Unmarshal for details about the
-// conversion of YAML into a Go value.
-func (dec *Decoder) Decode(v interface{}) (err error) {
-	d := newDecoder()
-	d.knownFields = dec.knownFields
-	defer handleErr(&err)
-	node := dec.parser.parse()
-	if node == nil {
-		return io.EOF
-	}
-	out := reflect.ValueOf(v)
-	if out.Kind() == reflect.Ptr && !out.IsNil() {
-		out = out.Elem()
-	}
-	d.unmarshal(node, out)
-	if len(d.terrors) > 0 {
-		return &TypeError{d.terrors}
-	}
-	return nil
-}
-
-// Decode decodes the node and stores its data into the value pointed to by v.
-//
-// See the documentation for Unmarshal for details about the
-// conversion of YAML into a Go value.
-func (n *Node) Decode(v interface{}) (err error) {
-	d := newDecoder()
-	defer handleErr(&err)
-	out := reflect.ValueOf(v)
-	if out.Kind() == reflect.Ptr && !out.IsNil() {
-		out = out.Elem()
-	}
-	d.unmarshal(n, out)
-	if len(d.terrors) > 0 {
-		return &TypeError{d.terrors}
-	}
-	return nil
-}
-
-func unmarshal(in []byte, out interface{}, strict bool) (err error) {
-	defer handleErr(&err)
-	d := newDecoder()
-	p := newParser(in)
-	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)
-	}
-	if len(d.terrors) > 0 {
-		return &TypeError{d.terrors}
-	}
-	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 marshalled if they are exported (have an upper case
-// first letter), and are marshalled 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.
-//                  Zero valued structs will be omitted if all their public
-//                  fields are zero, unless they implement an IsZero
-//                  method (see the IsZeroer interface type), in which
-//                  case the field will be excluded if IsZero returns true.
-//
-//     flow         Marshal using a flow style (useful for structs,
-//                  sequences and maps).
-//
-//     inline       Inline the field, which must be a struct or a map,
-//                  causing all of its fields or keys to be processed as if
-//                  they were part of the outer struct. For maps, keys must
-//                  not conflict with the yaml keys of other struct fields.
-//
-// In addition, if the key is "-", the field is ignored.
-//
-// For example:
-//
-//     type T struct {
-//         F int `yaml:"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.marshalDoc("", reflect.ValueOf(in))
-	e.finish()
-	out = e.out
-	return
-}
-
-// An Encoder writes YAML values to an output stream.
-type Encoder struct {
-	encoder *encoder
-}
-
-// NewEncoder returns a new encoder that writes to w.
-// The Encoder should be closed after use to flush all data
-// to w.
-func NewEncoder(w io.Writer) *Encoder {
-	return &Encoder{
-		encoder: newEncoderWithWriter(w),
-	}
-}
-
-// Encode writes the YAML encoding of v to the stream.
-// If multiple items are encoded to the stream, the
-// second and subsequent document will be preceded
-// with a "---" document separator, but the first will not.
-//
-// See the documentation for Marshal for details about the conversion of Go
-// values to YAML.
-func (e *Encoder) Encode(v interface{}) (err error) {
-	defer handleErr(&err)
-	e.encoder.marshalDoc("", reflect.ValueOf(v))
-	return nil
-}
-
-// Encode encodes value v and stores its representation in n.
-//
-// See the documentation for Marshal for details about the
-// conversion of Go values into YAML.
-func (n *Node) Encode(v interface{}) (err error) {
-	defer handleErr(&err)
-	e := newEncoder()
-	defer e.destroy()
-	e.marshalDoc("", reflect.ValueOf(v))
-	e.finish()
-	p := newParser(e.out)
-	p.textless = true
-	defer p.destroy()
-	doc := p.parse()
-	*n = *doc.Content[0]
-	return nil
-}
-
-// SetIndent changes the used indentation used when encoding.
-func (e *Encoder) SetIndent(spaces int) {
-	if spaces < 0 {
-		panic("yaml: cannot indent to a negative number of spaces")
-	}
-	e.encoder.indent = spaces
-}
-
-// Close closes the encoder by writing any remaining data.
-// It does not write a stream terminating string "...".
-func (e *Encoder) Close() (err error) {
-	defer handleErr(&err)
-	e.encoder.finish()
-	return nil
-}
-
-func handleErr(err *error) {
-	if v := recover(); v != nil {
-		if e, ok := v.(yamlError); ok {
-			*err = e.err
-		} else {
-			panic(v)
-		}
-	}
-}
-
-type yamlError struct {
-	err error
-}
-
-func fail(err error) {
-	panic(yamlError{err})
-}
-
-func failf(format string, args ...interface{}) {
-	panic(yamlError{fmt.Errorf("yaml: "+format, args...)})
-}
-
-// A TypeError is returned by Unmarshal when one or more fields in
-// the YAML document cannot be properly decoded into the requested
-// types. When this error is returned, the value is still
-// unmarshaled partially.
-type TypeError struct {
-	Errors []string
-}
-
-func (e *TypeError) Error() string {
-	return fmt.Sprintf("yaml: unmarshal errors:\n  %s", strings.Join(e.Errors, "\n  "))
-}
-
-type Kind uint32
-
-const (
-	DocumentNode Kind = 1 << iota
-	SequenceNode
-	MappingNode
-	ScalarNode
-	AliasNode
-)
-
-type Style uint32
-
-const (
-	TaggedStyle Style = 1 << iota
-	DoubleQuotedStyle
-	SingleQuotedStyle
-	LiteralStyle
-	FoldedStyle
-	FlowStyle
-)
-
-// Node represents an element in the YAML document hierarchy. While documents
-// are typically encoded and decoded into higher level types, such as structs
-// and maps, Node is an intermediate representation that allows detailed
-// control over the content being decoded or encoded.
-//
-// It's worth noting that although Node offers access into details such as
-// line numbers, colums, and comments, the content when re-encoded will not
-// have its original textual representation preserved. An effort is made to
-// render the data plesantly, and to preserve comments near the data they
-// describe, though.
-//
-// Values that make use of the Node type interact with the yaml package in the
-// same way any other type would do, by encoding and decoding yaml data
-// directly or indirectly into them.
-//
-// For example:
-//
-//     var person struct {
-//             Name    string
-//             Address yaml.Node
-//     }
-//     err := yaml.Unmarshal(data, &person)
-// 
-// Or by itself:
-//
-//     var person Node
-//     err := yaml.Unmarshal(data, &person)
-//
-type Node struct {
-	// Kind defines whether the node is a document, a mapping, a sequence,
-	// a scalar value, or an alias to another node. The specific data type of
-	// scalar nodes may be obtained via the ShortTag and LongTag methods.
-	Kind  Kind
-
-	// Style allows customizing the apperance of the node in the tree.
-	Style Style
-
-	// Tag holds the YAML tag defining the data type for the value.
-	// When decoding, this field will always be set to the resolved tag,
-	// even when it wasn't explicitly provided in the YAML content.
-	// When encoding, if this field is unset the value type will be
-	// implied from the node properties, and if it is set, it will only
-	// be serialized into the representation if TaggedStyle is used or
-	// the implicit tag diverges from the provided one.
-	Tag string
-
-	// Value holds the unescaped and unquoted represenation of the value.
-	Value string
-
-	// Anchor holds the anchor name for this node, which allows aliases to point to it.
-	Anchor string
-
-	// Alias holds the node that this alias points to. Only valid when Kind is AliasNode.
-	Alias *Node
-
-	// Content holds contained nodes for documents, mappings, and sequences.
-	Content []*Node
-
-	// HeadComment holds any comments in the lines preceding the node and
-	// not separated by an empty line.
-	HeadComment string
-
-	// LineComment holds any comments at the end of the line where the node is in.
-	LineComment string
-
-	// FootComment holds any comments following the node and before empty lines.
-	FootComment string
-
-	// Line and Column hold the node position in the decoded YAML text.
-	// These fields are not respected when encoding the node.
-	Line   int
-	Column int
-}
-
-// IsZero returns whether the node has all of its fields unset.
-func (n *Node) IsZero() bool {
-	return n.Kind == 0 && n.Style == 0 && n.Tag == "" && n.Value == "" && n.Anchor == "" && n.Alias == nil && n.Content == nil &&
-		n.HeadComment == "" && n.LineComment == "" && n.FootComment == "" && n.Line == 0 && n.Column == 0
-}
-
-
-// LongTag returns the long form of the tag that indicates the data type for
-// the node. If the Tag field isn't explicitly defined, one will be computed
-// based on the node properties.
-func (n *Node) LongTag() string {
-	return longTag(n.ShortTag())
-}
-
-// ShortTag returns the short form of the YAML tag that indicates data type for
-// the node. If the Tag field isn't explicitly defined, one will be computed
-// based on the node properties.
-func (n *Node) ShortTag() string {
-	if n.indicatedString() {
-		return strTag
-	}
-	if n.Tag == "" || n.Tag == "!" {
-		switch n.Kind {
-		case MappingNode:
-			return mapTag
-		case SequenceNode:
-			return seqTag
-		case AliasNode:
-			if n.Alias != nil {
-				return n.Alias.ShortTag()
-			}
-		case ScalarNode:
-			tag, _ := resolve("", n.Value)
-			return tag
-		case 0:
-			// Special case to make the zero value convenient.
-			if n.IsZero() {
-				return nullTag
-			}
-		}
-		return ""
-	}
-	return shortTag(n.Tag)
-}
-
-func (n *Node) indicatedString() bool {
-	return n.Kind == ScalarNode &&
-		(shortTag(n.Tag) == strTag ||
-			(n.Tag == "" || n.Tag == "!") && n.Style&(SingleQuotedStyle|DoubleQuotedStyle|LiteralStyle|FoldedStyle) != 0)
-}
-
-// SetString is a convenience function that sets the node to a string value
-// and defines its style in a pleasant way depending on its content.
-func (n *Node) SetString(s string) {
-	n.Kind = ScalarNode
-	if utf8.ValidString(s) {
-		n.Value = s
-		n.Tag = strTag
-	} else {
-		n.Value = encodeBase64(s)
-		n.Tag = binaryTag
-	}
-	if strings.Contains(n.Value, "\n") {
-		n.Style = LiteralStyle
-	}
-}
-
-// --------------------------------------------------------------------------
-// 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
-
-	// InlineUnmarshalers holds indexes to inlined fields that
-	// contain unmarshaler values.
-	InlineUnmarshalers [][]int
-}
-
-type fieldInfo struct {
-	Key       string
-	Num       int
-	OmitEmpty bool
-	Flow      bool
-	// Id holds the unique field identifier, so we can cheaply
-	// check for field duplicates without maintaining an extra map.
-	Id int
-
-	// 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
-var unmarshalerType reflect.Type
-
-func init() {
-	var v Unmarshaler
-	unmarshalerType = reflect.ValueOf(&v).Elem().Type()
-}
-
-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
-	inlineUnmarshalers := [][]int(nil)
-	for i := 0; i != n; i++ {
-		field := st.Field(i)
-		if field.PkgPath != "" && !field.Anonymous {
-			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() {
-			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, reflect.Ptr:
-				ftype := field.Type
-				for ftype.Kind() == reflect.Ptr {
-					ftype = ftype.Elem()
-				}
-				if ftype.Kind() != reflect.Struct {
-					return nil, errors.New("option ,inline may only be used on a struct or map field")
-				}
-				if reflect.PtrTo(ftype).Implements(unmarshalerType) {
-					inlineUnmarshalers = append(inlineUnmarshalers, []int{i})
-				} else {
-					sinfo, err := getStructInfo(ftype)
-					if err != nil {
-						return nil, err
-					}
-					for _, index := range sinfo.InlineUnmarshalers {
-						inlineUnmarshalers = append(inlineUnmarshalers, append([]int{i}, index...))
-					}
-					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...)
-						}
-						finfo.Id = len(fieldsList)
-						fieldsMap[finfo.Key] = finfo
-						fieldsList = append(fieldsList, finfo)
-					}
-				}
-			default:
-				return nil, errors.New("option ,inline may only be used on a struct or map 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)
-		}
-
-		info.Id = len(fieldsList)
-		fieldsList = append(fieldsList, info)
-		fieldsMap[info.Key] = info
-	}
-
-	sinfo = &structInfo{
-		FieldsMap:          fieldsMap,
-		FieldsList:         fieldsList,
-		InlineMap:          inlineMap,
-		InlineUnmarshalers: inlineUnmarshalers,
-	}
-
-	fieldMapMutex.Lock()
-	structMap[st] = sinfo
-	fieldMapMutex.Unlock()
-	return sinfo, nil
-}
-
-// IsZeroer is used to check whether an object is zero to
-// determine whether it should be omitted when marshaling
-// with the omitempty flag. One notable implementation
-// is time.Time.
-type IsZeroer interface {
-	IsZero() bool
-}
-
-func isZero(v reflect.Value) bool {
-	kind := v.Kind()
-	if z, ok := v.Interface().(IsZeroer); ok {
-		if (kind == reflect.Ptr || kind == reflect.Interface) && v.IsNil() {
-			return true
-		}
-		return z.IsZero()
-	}
-	switch 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.Float32, reflect.Float64:
-		return v.Float() == 0
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		return v.Uint() == 0
-	case reflect.Bool:
-		return !v.Bool()
-	case reflect.Struct:
-		vt := v.Type()
-		for i := v.NumField() - 1; i >= 0; i-- {
-			if vt.Field(i).PkgPath != "" {
-				continue // Private field
-			}
-			if !isZero(v.Field(i)) {
-				return false
-			}
-		}
-		return true
-	}
-	return false
-}