vendor: add qingstor-sdk-go for QingStor

vendor/github.com/pengsrc/go-shared/json/json.go

@@ -0,0 +1,50 @@
+package json
+
+import (
+	"bytes"
+	"encoding/json"
+)
+
+// Encode encode given interface to json byte slice.
+func Encode(source interface{}, unescape bool) ([]byte, error) {
+	bytesResult, err := json.Marshal(source)
+	if err != nil {
+		return []byte{}, err
+	}
+
+	if unescape {
+		bytesResult = bytes.Replace(bytesResult, []byte("\\u003c"), []byte("<"), -1)
+		bytesResult = bytes.Replace(bytesResult, []byte("\\u003e"), []byte(">"), -1)
+		bytesResult = bytes.Replace(bytesResult, []byte("\\u0026"), []byte("&"), -1)
+	}
+
+	return bytesResult, nil
+}
+
+// Decode decode given json byte slice to corresponding struct.
+func Decode(content []byte, destinations ...interface{}) (interface{}, error) {
+	var destination interface{}
+	var err error
+	if len(destinations) == 1 {
+		destination = destinations[0]
+		err = json.Unmarshal(content, destination)
+	} else {
+		err = json.Unmarshal(content, &destination)
+	}
+
+	if err != nil {
+		return nil, err
+	}
+	return destination, err
+}
+
+// FormatToReadable formats given json byte slice prettily.
+func FormatToReadable(source []byte) ([]byte, error) {
+	var out bytes.Buffer
+	err := json.Indent(&out, source, "", "  ") // Using 2 space indent
+	if err != nil {
+		return []byte{}, err
+	}
+
+	return out.Bytes(), nil
+}