/
common.go
94 lines (81 loc) · 2.12 KB
/
common.go
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/*
* Copyright (C) 2015 ~ 2017 Deepin Technology 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
* any later version.
*
* 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 system
import (
"encoding/json"
"fmt"
"os"
"path"
)
type MirrorSource struct {
Id string `json:"id"`
Name string `json:"name"`
Url string `json:"url"`
NameLocale map[string]string `json:"name_locale"`
Weight int `json:"weight"`
Country string `json:"country"`
AdjustDelay int `json:"adjust_delay"` // ms
}
var RepoInfos []RepositoryInfo
type RepositoryInfo struct {
Name string `json:"name"`
Url string `json:"url"`
Mirror string `json:"mirror"`
}
func DecodeJson(fpath string, d interface{}) error {
f, err := os.Open(fpath)
if err != nil {
return err
}
defer f.Close()
return json.NewDecoder(f).Decode(&d)
}
func EncodeJson(fpath string, d interface{}) error {
f, err := os.Create(fpath)
if err != nil {
return err
}
defer f.Close()
return json.NewEncoder(f).Encode(d)
}
func NormalFileExists(fpath string) bool {
info, err := os.Stat(fpath)
if err != nil {
return false
}
if info.IsDir() {
return false
}
return true
}
func SystemUpgradeInfo() ([]UpgradeInfo, error) {
filename := path.Join(VarLibDir, "update_infos.json")
var r []UpgradeInfo
err := DecodeJson(filename, &r)
if err != nil {
if os.IsNotExist(err) {
return nil, nil
}
var updateInfoErr UpdateInfoError
err2 := DecodeJson(filename, &updateInfoErr)
if err2 == nil {
return nil, &updateInfoErr
}
return nil, fmt.Errorf("Invalid update_infos: %v\n", err)
}
return r, nil
}