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-rw-r--r--vendor/sigs.k8s.io/yaml/yaml.go380
1 files changed, 0 insertions, 380 deletions
diff --git a/vendor/sigs.k8s.io/yaml/yaml.go b/vendor/sigs.k8s.io/yaml/yaml.go
deleted file mode 100644
index efbc535d4..000000000
--- a/vendor/sigs.k8s.io/yaml/yaml.go
+++ /dev/null
@@ -1,380 +0,0 @@
-package yaml
-
-import (
- "bytes"
- "encoding/json"
- "fmt"
- "io"
- "reflect"
- "strconv"
-
- "gopkg.in/yaml.v2"
-)
-
-// Marshal marshals the object into JSON then converts JSON to YAML and returns the
-// YAML.
-func Marshal(o interface{}) ([]byte, error) {
- j, err := json.Marshal(o)
- if err != nil {
- return nil, fmt.Errorf("error marshaling into JSON: %v", err)
- }
-
- y, err := JSONToYAML(j)
- if err != nil {
- return nil, fmt.Errorf("error converting JSON to YAML: %v", err)
- }
-
- return y, nil
-}
-
-// JSONOpt is a decoding option for decoding from JSON format.
-type JSONOpt func(*json.Decoder) *json.Decoder
-
-// Unmarshal converts YAML to JSON then uses JSON to unmarshal into an object,
-// optionally configuring the behavior of the JSON unmarshal.
-func Unmarshal(y []byte, o interface{}, opts ...JSONOpt) error {
- return yamlUnmarshal(y, o, false, opts...)
-}
-
-// UnmarshalStrict strictly converts YAML to JSON then uses JSON to unmarshal
-// into an object, optionally configuring the behavior of the JSON unmarshal.
-func UnmarshalStrict(y []byte, o interface{}, opts ...JSONOpt) error {
- return yamlUnmarshal(y, o, true, append(opts, DisallowUnknownFields)...)
-}
-
-// yamlUnmarshal unmarshals the given YAML byte stream into the given interface,
-// optionally performing the unmarshalling strictly
-func yamlUnmarshal(y []byte, o interface{}, strict bool, opts ...JSONOpt) error {
- vo := reflect.ValueOf(o)
- unmarshalFn := yaml.Unmarshal
- if strict {
- unmarshalFn = yaml.UnmarshalStrict
- }
- j, err := yamlToJSON(y, &vo, unmarshalFn)
- if err != nil {
- return fmt.Errorf("error converting YAML to JSON: %v", err)
- }
-
- err = jsonUnmarshal(bytes.NewReader(j), o, opts...)
- if err != nil {
- return fmt.Errorf("error unmarshaling JSON: %v", err)
- }
-
- return nil
-}
-
-// jsonUnmarshal unmarshals the JSON byte stream from the given reader into the
-// object, optionally applying decoder options prior to decoding. We are not
-// using json.Unmarshal directly as we want the chance to pass in non-default
-// options.
-func jsonUnmarshal(r io.Reader, o interface{}, opts ...JSONOpt) error {
- d := json.NewDecoder(r)
- for _, opt := range opts {
- d = opt(d)
- }
- if err := d.Decode(&o); err != nil {
- return fmt.Errorf("while decoding JSON: %v", err)
- }
- return nil
-}
-
-// JSONToYAML Converts JSON to YAML.
-func JSONToYAML(j []byte) ([]byte, error) {
- // Convert the JSON to an object.
- var jsonObj interface{}
- // We are using yaml.Unmarshal here (instead of json.Unmarshal) because the
- // Go JSON library doesn't try to pick the right number type (int, float,
- // etc.) when unmarshalling to interface{}, it just picks float64
- // universally. go-yaml does go through the effort of picking the right
- // number type, so we can preserve number type throughout this process.
- err := yaml.Unmarshal(j, &jsonObj)
- if err != nil {
- return nil, err
- }
-
- // Marshal this object into YAML.
- return yaml.Marshal(jsonObj)
-}
-
-// YAMLToJSON converts YAML to JSON. Since JSON is a subset of YAML,
-// passing JSON through this method should be a no-op.
-//
-// Things YAML can do that are not supported by JSON:
-// * In YAML you can have binary and null keys in your maps. These are invalid
-// in JSON. (int and float keys are converted to strings.)
-// * Binary data in YAML with the !!binary tag is not supported. If you want to
-// use binary data with this library, encode the data as base64 as usual but do
-// not use the !!binary tag in your YAML. This will ensure the original base64
-// encoded data makes it all the way through to the JSON.
-//
-// For strict decoding of YAML, use YAMLToJSONStrict.
-func YAMLToJSON(y []byte) ([]byte, error) {
- return yamlToJSON(y, nil, yaml.Unmarshal)
-}
-
-// YAMLToJSONStrict is like YAMLToJSON but enables strict YAML decoding,
-// returning an error on any duplicate field names.
-func YAMLToJSONStrict(y []byte) ([]byte, error) {
- return yamlToJSON(y, nil, yaml.UnmarshalStrict)
-}
-
-func yamlToJSON(y []byte, jsonTarget *reflect.Value, yamlUnmarshal func([]byte, interface{}) error) ([]byte, error) {
- // Convert the YAML to an object.
- var yamlObj interface{}
- err := yamlUnmarshal(y, &yamlObj)
- if err != nil {
- return nil, err
- }
-
- // YAML objects are not completely compatible with JSON objects (e.g. you
- // can have non-string keys in YAML). So, convert the YAML-compatible object
- // to a JSON-compatible object, failing with an error if irrecoverable
- // incompatibilties happen along the way.
- jsonObj, err := convertToJSONableObject(yamlObj, jsonTarget)
- if err != nil {
- return nil, err
- }
-
- // Convert this object to JSON and return the data.
- return json.Marshal(jsonObj)
-}
-
-func convertToJSONableObject(yamlObj interface{}, jsonTarget *reflect.Value) (interface{}, error) {
- var err error
-
- // Resolve jsonTarget to a concrete value (i.e. not a pointer or an
- // interface). We pass decodingNull as false because we're not actually
- // decoding into the value, we're just checking if the ultimate target is a
- // string.
- if jsonTarget != nil {
- ju, tu, pv := indirect(*jsonTarget, false)
- // We have a JSON or Text Umarshaler at this level, so we can't be trying
- // to decode into a string.
- if ju != nil || tu != nil {
- jsonTarget = nil
- } else {
- jsonTarget = &pv
- }
- }
-
- // If yamlObj is a number or a boolean, check if jsonTarget is a string -
- // if so, coerce. Else return normal.
- // If yamlObj is a map or array, find the field that each key is
- // unmarshaling to, and when you recurse pass the reflect.Value for that
- // field back into this function.
- switch typedYAMLObj := yamlObj.(type) {
- case map[interface{}]interface{}:
- // JSON does not support arbitrary keys in a map, so we must convert
- // these keys to strings.
- //
- // From my reading of go-yaml v2 (specifically the resolve function),
- // keys can only have the types string, int, int64, float64, binary
- // (unsupported), or null (unsupported).
- strMap := make(map[string]interface{})
- for k, v := range typedYAMLObj {
- // Resolve the key to a string first.
- var keyString string
- switch typedKey := k.(type) {
- case string:
- keyString = typedKey
- case int:
- keyString = strconv.Itoa(typedKey)
- case int64:
- // go-yaml will only return an int64 as a key if the system
- // architecture is 32-bit and the key's value is between 32-bit
- // and 64-bit. Otherwise the key type will simply be int.
- keyString = strconv.FormatInt(typedKey, 10)
- case float64:
- // Stolen from go-yaml to use the same conversion to string as
- // the go-yaml library uses to convert float to string when
- // Marshaling.
- s := strconv.FormatFloat(typedKey, 'g', -1, 32)
- switch s {
- case "+Inf":
- s = ".inf"
- case "-Inf":
- s = "-.inf"
- case "NaN":
- s = ".nan"
- }
- keyString = s
- case bool:
- if typedKey {
- keyString = "true"
- } else {
- keyString = "false"
- }
- default:
- return nil, fmt.Errorf("Unsupported map key of type: %s, key: %+#v, value: %+#v",
- reflect.TypeOf(k), k, v)
- }
-
- // jsonTarget should be a struct or a map. If it's a struct, find
- // the field it's going to map to and pass its reflect.Value. If
- // it's a map, find the element type of the map and pass the
- // reflect.Value created from that type. If it's neither, just pass
- // nil - JSON conversion will error for us if it's a real issue.
- if jsonTarget != nil {
- t := *jsonTarget
- if t.Kind() == reflect.Struct {
- keyBytes := []byte(keyString)
- // Find the field that the JSON library would use.
- var f *field
- fields := cachedTypeFields(t.Type())
- for i := range fields {
- ff := &fields[i]
- if bytes.Equal(ff.nameBytes, keyBytes) {
- f = ff
- break
- }
- // Do case-insensitive comparison.
- if f == nil && ff.equalFold(ff.nameBytes, keyBytes) {
- f = ff
- }
- }
- if f != nil {
- // Find the reflect.Value of the most preferential
- // struct field.
- jtf := t.Field(f.index[0])
- strMap[keyString], err = convertToJSONableObject(v, &jtf)
- if err != nil {
- return nil, err
- }
- continue
- }
- } else if t.Kind() == reflect.Map {
- // Create a zero value of the map's element type to use as
- // the JSON target.
- jtv := reflect.Zero(t.Type().Elem())
- strMap[keyString], err = convertToJSONableObject(v, &jtv)
- if err != nil {
- return nil, err
- }
- continue
- }
- }
- strMap[keyString], err = convertToJSONableObject(v, nil)
- if err != nil {
- return nil, err
- }
- }
- return strMap, nil
- case []interface{}:
- // We need to recurse into arrays in case there are any
- // map[interface{}]interface{}'s inside and to convert any
- // numbers to strings.
-
- // If jsonTarget is a slice (which it really should be), find the
- // thing it's going to map to. If it's not a slice, just pass nil
- // - JSON conversion will error for us if it's a real issue.
- var jsonSliceElemValue *reflect.Value
- if jsonTarget != nil {
- t := *jsonTarget
- if t.Kind() == reflect.Slice {
- // By default slices point to nil, but we need a reflect.Value
- // pointing to a value of the slice type, so we create one here.
- ev := reflect.Indirect(reflect.New(t.Type().Elem()))
- jsonSliceElemValue = &ev
- }
- }
-
- // Make and use a new array.
- arr := make([]interface{}, len(typedYAMLObj))
- for i, v := range typedYAMLObj {
- arr[i], err = convertToJSONableObject(v, jsonSliceElemValue)
- if err != nil {
- return nil, err
- }
- }
- return arr, nil
- default:
- // If the target type is a string and the YAML type is a number,
- // convert the YAML type to a string.
- if jsonTarget != nil && (*jsonTarget).Kind() == reflect.String {
- // Based on my reading of go-yaml, it may return int, int64,
- // float64, or uint64.
- var s string
- switch typedVal := typedYAMLObj.(type) {
- case int:
- s = strconv.FormatInt(int64(typedVal), 10)
- case int64:
- s = strconv.FormatInt(typedVal, 10)
- case float64:
- s = strconv.FormatFloat(typedVal, 'g', -1, 32)
- case uint64:
- s = strconv.FormatUint(typedVal, 10)
- case bool:
- if typedVal {
- s = "true"
- } else {
- s = "false"
- }
- }
- if len(s) > 0 {
- yamlObj = interface{}(s)
- }
- }
- return yamlObj, nil
- }
-}
-
-// JSONObjectToYAMLObject converts an in-memory JSON object into a YAML in-memory MapSlice,
-// without going through a byte representation. A nil or empty map[string]interface{} input is
-// converted to an empty map, i.e. yaml.MapSlice(nil).
-//
-// interface{} slices stay interface{} slices. map[string]interface{} becomes yaml.MapSlice.
-//
-// int64 and float64 are down casted following the logic of github.com/go-yaml/yaml:
-// - float64s are down-casted as far as possible without data-loss to int, int64, uint64.
-// - int64s are down-casted to int if possible without data-loss.
-//
-// Big int/int64/uint64 do not lose precision as in the json-yaml roundtripping case.
-//
-// string, bool and any other types are unchanged.
-func JSONObjectToYAMLObject(j map[string]interface{}) yaml.MapSlice {
- if len(j) == 0 {
- return nil
- }
- ret := make(yaml.MapSlice, 0, len(j))
- for k, v := range j {
- ret = append(ret, yaml.MapItem{Key: k, Value: jsonToYAMLValue(v)})
- }
- return ret
-}
-
-func jsonToYAMLValue(j interface{}) interface{} {
- switch j := j.(type) {
- case map[string]interface{}:
- if j == nil {
- return interface{}(nil)
- }
- return JSONObjectToYAMLObject(j)
- case []interface{}:
- if j == nil {
- return interface{}(nil)
- }
- ret := make([]interface{}, len(j))
- for i := range j {
- ret[i] = jsonToYAMLValue(j[i])
- }
- return ret
- case float64:
- // replicate the logic in https://github.com/go-yaml/yaml/blob/51d6538a90f86fe93ac480b35f37b2be17fef232/resolve.go#L151
- if i64 := int64(j); j == float64(i64) {
- if i := int(i64); i64 == int64(i) {
- return i
- }
- return i64
- }
- if ui64 := uint64(j); j == float64(ui64) {
- return ui64
- }
- return j
- case int64:
- if i := int(j); j == int64(i) {
- return i
- }
- return j
- }
- return j
-}