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authorHuabingZhao <zhao.huabing@zte.com.cn>2017-09-04 15:00:54 +0800
committerHuabingZhao <zhao.huabing@zte.com.cn>2017-09-04 15:06:21 +0800
commit43dac0bc4302fed79eaeb661723ca584a9c0496a (patch)
treea78f60300d73f0a69ed12e946d3fe4580455d8ba /kube2msb/src/vendor/github.com/ghodss
parenta7837a0ac51704003c6aacba2dacb8e64f681622 (diff)
restructure the source directory
Issue-ID: OOM-61 Change-Id: Ib6f633d517ad197bfdbca59b374cdad2f1ed897e Signed-off-by: HuabingZhao <zhao.huabing@zte.com.cn>
Diffstat (limited to 'kube2msb/src/vendor/github.com/ghodss')
-rw-r--r--kube2msb/src/vendor/github.com/ghodss/yaml/LICENSE50
-rw-r--r--kube2msb/src/vendor/github.com/ghodss/yaml/README.md116
-rw-r--r--kube2msb/src/vendor/github.com/ghodss/yaml/fields.go497
-rw-r--r--kube2msb/src/vendor/github.com/ghodss/yaml/yaml.go277
4 files changed, 0 insertions, 940 deletions
diff --git a/kube2msb/src/vendor/github.com/ghodss/yaml/LICENSE b/kube2msb/src/vendor/github.com/ghodss/yaml/LICENSE
deleted file mode 100644
index 7805d36..0000000
--- a/kube2msb/src/vendor/github.com/ghodss/yaml/LICENSE
+++ /dev/null
@@ -1,50 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2014 Sam Ghods
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-
-
-Copyright (c) 2012 The Go Authors. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
- * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
- * Neither the name of Google Inc. nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/kube2msb/src/vendor/github.com/ghodss/yaml/README.md b/kube2msb/src/vendor/github.com/ghodss/yaml/README.md
deleted file mode 100644
index f8f7e36..0000000
--- a/kube2msb/src/vendor/github.com/ghodss/yaml/README.md
+++ /dev/null
@@ -1,116 +0,0 @@
-# YAML marshaling and unmarshaling support for Go
-
-[![Build Status](https://travis-ci.org/ghodss/yaml.svg)](https://travis-ci.org/ghodss/yaml)
-
-## Introduction
-
-A wrapper around [go-yaml](https://github.com/go-yaml/yaml) designed to enable a better way of handling YAML when marshaling to and from structs.
-
-In short, this library first converts YAML to JSON using go-yaml and then uses `json.Marshal` and `json.Unmarshal` to convert to or from the struct. This means that it effectively reuses the JSON struct tags as well as the custom JSON methods `MarshalJSON` and `UnmarshalJSON` unlike go-yaml. For a detailed overview of the rationale behind this method, [see this blog post](http://ghodss.com/2014/the-right-way-to-handle-yaml-in-golang/).
-
-## Compatibility
-
-This package uses [go-yaml v2](https://github.com/go-yaml/yaml) and therefore supports [everything go-yaml supports](https://github.com/go-yaml/yaml#compatibility).
-
-## Caveats
-
-**Caveat #1:** When using `yaml.Marshal` and `yaml.Unmarshal`, binary data should NOT be preceded with the `!!binary` YAML tag. If you do, go-yaml will convert the binary data from base64 to native binary data, which is not compatible with JSON. You can still use binary in your YAML files though - just store them without the `!!binary` tag and decode the base64 in your code (e.g. in the custom JSON methods `MarshalJSON` and `UnmarshalJSON`). This also has the benefit that your YAML and your JSON binary data will be decoded exactly the same way. As an example:
-
-```
-BAD:
- exampleKey: !!binary gIGC
-
-GOOD:
- exampleKey: gIGC
-... and decode the base64 data in your code.
-```
-
-**Caveat #2:** When using `YAMLToJSON` directly, maps with keys that are maps will result in an error since this is not supported by JSON. This error will occur in `Unmarshal` as well since you can't unmarshal map keys anyways since struct fields can't be keys.
-
-## Installation and usage
-
-To install, run:
-
-```
-$ go get github.com/ghodss/yaml
-```
-
-And import using:
-
-```
-import "github.com/ghodss/yaml"
-```
-
-Usage is very similar to the JSON library:
-
-```go
-import (
- "fmt"
-
- "github.com/ghodss/yaml"
-)
-
-type Person struct {
- Name string `json:"name"` // Affects YAML field names too.
- Age int `json:"name"`
-}
-
-func main() {
- // Marshal a Person struct to YAML.
- p := Person{"John", 30}
- y, err := yaml.Marshal(p)
- if err != nil {
- fmt.Printf("err: %v\n", err)
- return
- }
- fmt.Println(string(y))
- /* Output:
- name: John
- age: 30
- */
-
- // Unmarshal the YAML back into a Person struct.
- var p2 Person
- err := yaml.Unmarshal(y, &p2)
- if err != nil {
- fmt.Printf("err: %v\n", err)
- return
- }
- fmt.Println(p2)
- /* Output:
- {John 30}
- */
-}
-```
-
-`yaml.YAMLToJSON` and `yaml.JSONToYAML` methods are also available:
-
-```go
-import (
- "fmt"
-
- "github.com/ghodss/yaml"
-)
-func main() {
- j := []byte(`{"name": "John", "age": 30}`)
- y, err := yaml.JSONToYAML(j)
- if err != nil {
- fmt.Printf("err: %v\n", err)
- return
- }
- fmt.Println(string(y))
- /* Output:
- name: John
- age: 30
- */
- j2, err := yaml.YAMLToJSON(y)
- if err != nil {
- fmt.Printf("err: %v\n", err)
- return
- }
- fmt.Println(string(j2))
- /* Output:
- {"age":30,"name":"John"}
- */
-}
-```
diff --git a/kube2msb/src/vendor/github.com/ghodss/yaml/fields.go b/kube2msb/src/vendor/github.com/ghodss/yaml/fields.go
deleted file mode 100644
index 0bd3c2b..0000000
--- a/kube2msb/src/vendor/github.com/ghodss/yaml/fields.go
+++ /dev/null
@@ -1,497 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-package yaml
-
-import (
- "bytes"
- "encoding"
- "encoding/json"
- "reflect"
- "sort"
- "strings"
- "sync"
- "unicode"
- "unicode/utf8"
-)
-
-// indirect walks down v allocating pointers as needed,
-// until it gets to a non-pointer.
-// if it encounters an Unmarshaler, indirect stops and returns that.
-// if decodingNull is true, indirect stops at the last pointer so it can be set to nil.
-func indirect(v reflect.Value, decodingNull bool) (json.Unmarshaler, encoding.TextUnmarshaler, reflect.Value) {
- // If v is a named type and is addressable,
- // start with its address, so that if the type has pointer methods,
- // we find them.
- if v.Kind() != reflect.Ptr && v.Type().Name() != "" && v.CanAddr() {
- v = v.Addr()
- }
- for {
- // Load value from interface, but only if the result will be
- // usefully addressable.
- if v.Kind() == reflect.Interface && !v.IsNil() {
- e := v.Elem()
- if e.Kind() == reflect.Ptr && !e.IsNil() && (!decodingNull || e.Elem().Kind() == reflect.Ptr) {
- v = e
- continue
- }
- }
-
- if v.Kind() != reflect.Ptr {
- break
- }
-
- if v.Elem().Kind() != reflect.Ptr && decodingNull && v.CanSet() {
- break
- }
- if v.IsNil() {
- v.Set(reflect.New(v.Type().Elem()))
- }
- if v.Type().NumMethod() > 0 {
- if u, ok := v.Interface().(json.Unmarshaler); ok {
- return u, nil, reflect.Value{}
- }
- if u, ok := v.Interface().(encoding.TextUnmarshaler); ok {
- return nil, u, reflect.Value{}
- }
- }
- v = v.Elem()
- }
- return nil, nil, v
-}
-
-// A field represents a single field found in a struct.
-type field struct {
- name string
- nameBytes []byte // []byte(name)
- equalFold func(s, t []byte) bool // bytes.EqualFold or equivalent
-
- tag bool
- index []int
- typ reflect.Type
- omitEmpty bool
- quoted bool
-}
-
-func fillField(f field) field {
- f.nameBytes = []byte(f.name)
- f.equalFold = foldFunc(f.nameBytes)
- return f
-}
-
-// byName sorts field by name, breaking ties with depth,
-// then breaking ties with "name came from json tag", then
-// breaking ties with index sequence.
-type byName []field
-
-func (x byName) Len() int { return len(x) }
-
-func (x byName) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
-
-func (x byName) Less(i, j int) bool {
- if x[i].name != x[j].name {
- return x[i].name < x[j].name
- }
- if len(x[i].index) != len(x[j].index) {
- return len(x[i].index) < len(x[j].index)
- }
- if x[i].tag != x[j].tag {
- return x[i].tag
- }
- return byIndex(x).Less(i, j)
-}
-
-// byIndex sorts field by index sequence.
-type byIndex []field
-
-func (x byIndex) Len() int { return len(x) }
-
-func (x byIndex) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
-
-func (x byIndex) Less(i, j int) bool {
- for k, xik := range x[i].index {
- if k >= len(x[j].index) {
- return false
- }
- if xik != x[j].index[k] {
- return xik < x[j].index[k]
- }
- }
- return len(x[i].index) < len(x[j].index)
-}
-
-// typeFields returns a list of fields that JSON should recognize for the given type.
-// The algorithm is breadth-first search over the set of structs to include - the top struct
-// and then any reachable anonymous structs.
-func typeFields(t reflect.Type) []field {
- // Anonymous fields to explore at the current level and the next.
- current := []field{}
- next := []field{{typ: t}}
-
- // Count of queued names for current level and the next.
- count := map[reflect.Type]int{}
- nextCount := map[reflect.Type]int{}
-
- // Types already visited at an earlier level.
- visited := map[reflect.Type]bool{}
-
- // Fields found.
- var fields []field
-
- for len(next) > 0 {
- current, next = next, current[:0]
- count, nextCount = nextCount, map[reflect.Type]int{}
-
- for _, f := range current {
- if visited[f.typ] {
- continue
- }
- visited[f.typ] = true
-
- // Scan f.typ for fields to include.
- for i := 0; i < f.typ.NumField(); i++ {
- sf := f.typ.Field(i)
- if sf.PkgPath != "" { // unexported
- continue
- }
- tag := sf.Tag.Get("json")
- if tag == "-" {
- continue
- }
- name, opts := parseTag(tag)
- if !isValidTag(name) {
- name = ""
- }
- index := make([]int, len(f.index)+1)
- copy(index, f.index)
- index[len(f.index)] = i
-
- ft := sf.Type
- if ft.Name() == "" && ft.Kind() == reflect.Ptr {
- // Follow pointer.
- ft = ft.Elem()
- }
-
- // Record found field and index sequence.
- if name != "" || !sf.Anonymous || ft.Kind() != reflect.Struct {
- tagged := name != ""
- if name == "" {
- name = sf.Name
- }
- fields = append(fields, fillField(field{
- name: name,
- tag: tagged,
- index: index,
- typ: ft,
- omitEmpty: opts.Contains("omitempty"),
- quoted: opts.Contains("string"),
- }))
- if count[f.typ] > 1 {
- // If there were multiple instances, add a second,
- // so that the annihilation code will see a duplicate.
- // It only cares about the distinction between 1 or 2,
- // so don't bother generating any more copies.
- fields = append(fields, fields[len(fields)-1])
- }
- continue
- }
-
- // Record new anonymous struct to explore in next round.
- nextCount[ft]++
- if nextCount[ft] == 1 {
- next = append(next, fillField(field{name: ft.Name(), index: index, typ: ft}))
- }
- }
- }
- }
-
- sort.Sort(byName(fields))
-
- // Delete all fields that are hidden by the Go rules for embedded fields,
- // except that fields with JSON tags are promoted.
-
- // The fields are sorted in primary order of name, secondary order
- // of field index length. Loop over names; for each name, delete
- // hidden fields by choosing the one dominant field that survives.
- out := fields[:0]
- for advance, i := 0, 0; i < len(fields); i += advance {
- // One iteration per name.
- // Find the sequence of fields with the name of this first field.
- fi := fields[i]
- name := fi.name
- for advance = 1; i+advance < len(fields); advance++ {
- fj := fields[i+advance]
- if fj.name != name {
- break
- }
- }
- if advance == 1 { // Only one field with this name
- out = append(out, fi)
- continue
- }
- dominant, ok := dominantField(fields[i : i+advance])
- if ok {
- out = append(out, dominant)
- }
- }
-
- fields = out
- sort.Sort(byIndex(fields))
-
- return fields
-}
-
-// dominantField looks through the fields, all of which are known to
-// have the same name, to find the single field that dominates the
-// others using Go's embedding rules, modified by the presence of
-// JSON tags. If there are multiple top-level fields, the boolean
-// will be false: This condition is an error in Go and we skip all
-// the fields.
-func dominantField(fields []field) (field, bool) {
- // The fields are sorted in increasing index-length order. The winner
- // must therefore be one with the shortest index length. Drop all
- // longer entries, which is easy: just truncate the slice.
- length := len(fields[0].index)
- tagged := -1 // Index of first tagged field.
- for i, f := range fields {
- if len(f.index) > length {
- fields = fields[:i]
- break
- }
- if f.tag {
- if tagged >= 0 {
- // Multiple tagged fields at the same level: conflict.
- // Return no field.
- return field{}, false
- }
- tagged = i
- }
- }
- if tagged >= 0 {
- return fields[tagged], true
- }
- // All remaining fields have the same length. If there's more than one,
- // we have a conflict (two fields named "X" at the same level) and we
- // return no field.
- if len(fields) > 1 {
- return field{}, false
- }
- return fields[0], true
-}
-
-var fieldCache struct {
- sync.RWMutex
- m map[reflect.Type][]field
-}
-
-// cachedTypeFields is like typeFields but uses a cache to avoid repeated work.
-func cachedTypeFields(t reflect.Type) []field {
- fieldCache.RLock()
- f := fieldCache.m[t]
- fieldCache.RUnlock()
- if f != nil {
- return f
- }
-
- // Compute fields without lock.
- // Might duplicate effort but won't hold other computations back.
- f = typeFields(t)
- if f == nil {
- f = []field{}
- }
-
- fieldCache.Lock()
- if fieldCache.m == nil {
- fieldCache.m = map[reflect.Type][]field{}
- }
- fieldCache.m[t] = f
- fieldCache.Unlock()
- return f
-}
-
-func isValidTag(s string) bool {
- if s == "" {
- return false
- }
- for _, c := range s {
- switch {
- case strings.ContainsRune("!#$%&()*+-./:<=>?@[]^_{|}~ ", c):
- // Backslash and quote chars are reserved, but
- // otherwise any punctuation chars are allowed
- // in a tag name.
- default:
- if !unicode.IsLetter(c) && !unicode.IsDigit(c) {
- return false
- }
- }
- }
- return true
-}
-
-const (
- caseMask = ^byte(0x20) // Mask to ignore case in ASCII.
- kelvin = '\u212a'
- smallLongEss = '\u017f'
-)
-
-// foldFunc returns one of four different case folding equivalence
-// functions, from most general (and slow) to fastest:
-//
-// 1) bytes.EqualFold, if the key s contains any non-ASCII UTF-8
-// 2) equalFoldRight, if s contains special folding ASCII ('k', 'K', 's', 'S')
-// 3) asciiEqualFold, no special, but includes non-letters (including _)
-// 4) simpleLetterEqualFold, no specials, no non-letters.
-//
-// The letters S and K are special because they map to 3 runes, not just 2:
-// * S maps to s and to U+017F 'ſ' Latin small letter long s
-// * k maps to K and to U+212A 'K' Kelvin sign
-// See http://play.golang.org/p/tTxjOc0OGo
-//
-// The returned function is specialized for matching against s and
-// should only be given s. It's not curried for performance reasons.
-func foldFunc(s []byte) func(s, t []byte) bool {
- nonLetter := false
- special := false // special letter
- for _, b := range s {
- if b >= utf8.RuneSelf {
- return bytes.EqualFold
- }
- upper := b & caseMask
- if upper < 'A' || upper > 'Z' {
- nonLetter = true
- } else if upper == 'K' || upper == 'S' {
- // See above for why these letters are special.
- special = true
- }
- }
- if special {
- return equalFoldRight
- }
- if nonLetter {
- return asciiEqualFold
- }
- return simpleLetterEqualFold
-}
-
-// equalFoldRight is a specialization of bytes.EqualFold when s is
-// known to be all ASCII (including punctuation), but contains an 's',
-// 'S', 'k', or 'K', requiring a Unicode fold on the bytes in t.
-// See comments on foldFunc.
-func equalFoldRight(s, t []byte) bool {
- for _, sb := range s {
- if len(t) == 0 {
- return false
- }
- tb := t[0]
- if tb < utf8.RuneSelf {
- if sb != tb {
- sbUpper := sb & caseMask
- if 'A' <= sbUpper && sbUpper <= 'Z' {
- if sbUpper != tb&caseMask {
- return false
- }
- } else {
- return false
- }
- }
- t = t[1:]
- continue
- }
- // sb is ASCII and t is not. t must be either kelvin
- // sign or long s; sb must be s, S, k, or K.
- tr, size := utf8.DecodeRune(t)
- switch sb {
- case 's', 'S':
- if tr != smallLongEss {
- return false
- }
- case 'k', 'K':
- if tr != kelvin {
- return false
- }
- default:
- return false
- }
- t = t[size:]
-
- }
- if len(t) > 0 {
- return false
- }
- return true
-}
-
-// asciiEqualFold is a specialization of bytes.EqualFold for use when
-// s is all ASCII (but may contain non-letters) and contains no
-// special-folding letters.
-// See comments on foldFunc.
-func asciiEqualFold(s, t []byte) bool {
- if len(s) != len(t) {
- return false
- }
- for i, sb := range s {
- tb := t[i]
- if sb == tb {
- continue
- }
- if ('a' <= sb && sb <= 'z') || ('A' <= sb && sb <= 'Z') {
- if sb&caseMask != tb&caseMask {
- return false
- }
- } else {
- return false
- }
- }
- return true
-}
-
-// simpleLetterEqualFold is a specialization of bytes.EqualFold for
-// use when s is all ASCII letters (no underscores, etc) and also
-// doesn't contain 'k', 'K', 's', or 'S'.
-// See comments on foldFunc.
-func simpleLetterEqualFold(s, t []byte) bool {
- if len(s) != len(t) {
- return false
- }
- for i, b := range s {
- if b&caseMask != t[i]&caseMask {
- return false
- }
- }
- return true
-}
-
-// tagOptions is the string following a comma in a struct field's "json"
-// tag, or the empty string. It does not include the leading comma.
-type tagOptions string
-
-// parseTag splits a struct field's json tag into its name and
-// comma-separated options.
-func parseTag(tag string) (string, tagOptions) {
- if idx := strings.Index(tag, ","); idx != -1 {
- return tag[:idx], tagOptions(tag[idx+1:])
- }
- return tag, tagOptions("")
-}
-
-// Contains reports whether a comma-separated list of options
-// contains a particular substr flag. substr must be surrounded by a
-// string boundary or commas.
-func (o tagOptions) Contains(optionName string) bool {
- if len(o) == 0 {
- return false
- }
- s := string(o)
- for s != "" {
- var next string
- i := strings.Index(s, ",")
- if i >= 0 {
- s, next = s[:i], s[i+1:]
- }
- if s == optionName {
- return true
- }
- s = next
- }
- return false
-}
diff --git a/kube2msb/src/vendor/github.com/ghodss/yaml/yaml.go b/kube2msb/src/vendor/github.com/ghodss/yaml/yaml.go
deleted file mode 100644
index c02beac..0000000
--- a/kube2msb/src/vendor/github.com/ghodss/yaml/yaml.go
+++ /dev/null
@@ -1,277 +0,0 @@
-package yaml
-
-import (
- "bytes"
- "encoding/json"
- "fmt"
- "reflect"
- "strconv"
-
- "gopkg.in/yaml.v2"
-)
-
-// 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: ", err)
- }
-
- y, err := JSONToYAML(j)
- if err != nil {
- return nil, fmt.Errorf("error converting JSON to YAML: ", err)
- }
-
- return y, nil
-}
-
-// Converts YAML to JSON then uses JSON to unmarshal into an object.
-func Unmarshal(y []byte, o interface{}) error {
- vo := reflect.ValueOf(o)
- j, err := yamlToJSON(y, &vo)
- if err != nil {
- return fmt.Errorf("error converting YAML to JSON: %v", err)
- }
-
- err = json.Unmarshal(j, o)
- if err != nil {
- return fmt.Errorf("error unmarshaling JSON: %v", err)
- }
-
- return nil
-}
-
-// Convert 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 unmarshling 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)
-}
-
-// Convert 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.
-func YAMLToJSON(y []byte) ([]byte, error) {
- return yamlToJSON(y, nil)
-}
-
-func yamlToJSON(y []byte, jsonTarget *reflect.Value) ([]byte, error) {
- // Convert the YAML to an object.
- var yamlObj interface{}
- err := yaml.Unmarshal(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
- }
-
- return nil, nil
-}