update vendor

vendor/github.com/qiniu/x/config.v7/load_conf.go

@@ -0,0 +1,116 @@
+package config
+
+import (
+	"bytes"
+	"encoding/json"
+	"flag"
+	"io/ioutil"
+
+	"qiniupkg.com/x/log.v7"
+)
+
+var (
+	confName *string
+)
+
+func Init(cflag, app, default_conf string) {
+
+	confDir, _ := GetDir(app)
+	confName = flag.String(cflag, confDir+"/"+default_conf, "the config file")
+}
+
+func GetPath() string {
+
+	if confName != nil {
+		return *confName
+	}
+	return ""
+}
+
+func Load(conf interface{}) (err error) {
+
+	if !flag.Parsed() {
+		flag.Parse()
+	}
+
+	log.Info("Use the config file of ", *confName)
+	return LoadEx(conf, *confName)
+}
+
+func LoadEx(conf interface{}, confName string) (err error) {
+
+	data, err := ioutil.ReadFile(confName)
+	if err != nil {
+		log.Error("Load conf failed:", err)
+		return
+	}
+	data = trimComments(data)
+
+	err = json.Unmarshal(data, conf)
+	if err != nil {
+		log.Error("Parse conf failed:", err)
+	}
+	return
+}
+
+func LoadFile(conf interface{}, confName string) (err error) {
+
+	data, err := ioutil.ReadFile(confName)
+	if err != nil {
+		return
+	}
+	data = trimComments(data)
+
+	return json.Unmarshal(data, conf)
+}
+
+func LoadBytes(conf interface{}, data []byte) (err error) {
+
+	return json.Unmarshal(trimComments(data), conf)
+}
+
+func LoadString(conf interface{}, data string) (err error) {
+
+	return json.Unmarshal(trimComments([]byte(data)), conf)
+}
+
+func trimComments(data []byte) (data1 []byte) {
+
+	var line []byte
+
+	data1 = data[:0]
+	for {
+		pos := bytes.IndexByte(data, '\n')
+		if pos < 0 {
+			line = data
+		} else {
+			line = data[:pos+1]
+		}
+		data1 = append(data1, trimCommentsLine(line)...)
+		if pos < 0 {
+			return
+		}
+		data = data[pos+1:]
+	}
+}
+
+func trimCommentsLine(line []byte) []byte {
+
+	n := len(line)
+	quoteCount := 0
+	for i := 0; i < n; i++ {
+		c := line[i]
+		switch c {
+		case '\\':
+			i++
+		case '"':
+			quoteCount++
+		case '#':
+			if (quoteCount&1) == 0 {
+				return line[:i]
+			}
+		}
+	}
+	return line
+}
+