mirror of
https://gitee.com/rainbond/Rainbond.git
synced 2024-12-05 21:27:47 +08:00
108 lines
2.7 KiB
Go
108 lines
2.7 KiB
Go
|
||
// RAINBOND, Application Management Platform
|
||
// Copyright (C) 2014-2017 Goodrain Co., Ltd.
|
||
|
||
// This program is free software: you can redistribute it and/or modify
|
||
// it under the terms of the GNU General Public License as published by
|
||
// the Free Software Foundation, either version 3 of the License, or
|
||
// (at your option) any later version. For any non-GPL usage of Rainbond,
|
||
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
|
||
// must be obtained first.
|
||
|
||
// This program is distributed in the hope that it will be useful,
|
||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
// GNU General Public License for more details.
|
||
|
||
// You should have received a copy of the GNU General Public License
|
||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
||
package utils
|
||
|
||
import (
|
||
"bytes"
|
||
"encoding/json"
|
||
"fmt"
|
||
"io/ioutil"
|
||
"os"
|
||
"path/filepath"
|
||
"regexp"
|
||
)
|
||
|
||
var (
|
||
extendTag = "@extend:"
|
||
pwdTag = "@pwd@"
|
||
rootTag = "@root@"
|
||
root = ""
|
||
)
|
||
|
||
// 设置扩展标识,如果不设置,默认为 '@extend:'
|
||
func SetExtendTag(tag string) {
|
||
extendTag = tag
|
||
}
|
||
|
||
func SetRoot(r string) {
|
||
root = r
|
||
}
|
||
|
||
// 设置当前路径标识,如果不设置,默认为 '@pwd@'
|
||
// @pwd@ 会被替换成当前文件的路径,
|
||
// 至于是绝对路径还是相对路径,取决于读取文件时,传入的是绝对路径还是相对路径
|
||
func SetPathTag(tag string) {
|
||
pwdTag = tag
|
||
}
|
||
|
||
//加载json(可配置扩展字段)配置文件
|
||
func LoadExtendConf(filePath string, v interface{}) error {
|
||
data, err := extendFile(filePath)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
err = json.Unmarshal(data, v)
|
||
return err
|
||
}
|
||
|
||
func extendFile(filePath string) (data []byte, err error) {
|
||
fi, err := os.Stat(filePath)
|
||
if err != nil {
|
||
return
|
||
}
|
||
if fi.IsDir() {
|
||
err = fmt.Errorf(filePath + " is not a file.")
|
||
return
|
||
}
|
||
|
||
b, err := ioutil.ReadFile(filePath)
|
||
if err != nil {
|
||
return
|
||
}
|
||
|
||
if len(root) != 0 {
|
||
b = bytes.Replace(b, []byte(rootTag), []byte(root), -1)
|
||
}
|
||
|
||
dir := filepath.Dir(filePath)
|
||
return extendFileContent(dir, bytes.Replace(b, []byte(pwdTag), []byte(dir), -1))
|
||
}
|
||
|
||
func extendFileContent(dir string, content []byte) (data []byte, err error) {
|
||
//检查是不是规范的json
|
||
test := new(interface{})
|
||
err = json.Unmarshal(content, &test)
|
||
if err != nil {
|
||
return
|
||
}
|
||
|
||
// 替换子json文件
|
||
reg := regexp.MustCompile(`"` + extendTag + `.*?"`)
|
||
data = reg.ReplaceAllFunc(content, func(match []byte) []byte {
|
||
match = match[len(extendTag)+1 : len(match)-1]
|
||
sb, e := extendFile(filepath.Join(dir, string(match)))
|
||
if e != nil {
|
||
err = fmt.Errorf("替换json配置[%s]失败:%s\n", match, e.Error())
|
||
}
|
||
return sb
|
||
})
|
||
return
|
||
}
|