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utils.go
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/
utils.go
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/*
* Copyright (C) 2016 ~ 2018 Deepin Technology Co., Ltd.
*
* Author: jouyouyun <jouyouwen717@gmail.com>
*
* 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 launcher
import (
"os"
"path"
"path/filepath"
"pkg.deepin.io/lib/gettext"
"pkg.deepin.io/lib/xdg/basedir"
"pkg.deepin.io/lib/xdg/userdir"
"strings"
"syscall"
)
const (
AppDirName = "applications"
DirDefaultPerm os.FileMode = 0755
)
// appInDesktop returns the destination when the desktop file is
// sent to the user's desktop direcotry.
func appInDesktop(appId string) string {
appId = strings.Replace(appId, "/", "-", -1)
return filepath.Join(getUserDesktopDir(), appId+desktopExt)
}
func isZH() bool {
lang := gettext.QueryLang()
return strings.HasPrefix(lang, "zh")
}
func getUserDesktopDir() string {
return userdir.Get(userdir.Desktop)
}
// return $HOME/.local/share/applications
func getUserAppDir() string {
userDataDir := basedir.GetUserDataDir()
return filepath.Join(userDataDir, AppDirName)
}
func getDataDirsForWatch() []string {
userDataDir := basedir.GetUserDataDir()
sysDataDirs := basedir.GetSystemDataDirs()
return append(sysDataDirs, userDataDir)
}
// The default applications module of the DDE Control Center
// creates the desktop file with the file name beginning with
// "deepin-custom" in the applications directory under the XDG
// user data directory.
func isDeepinCustomDesktopFile(file string) bool {
dir := filepath.Dir(file)
base := filepath.Base(file)
userAppDir := getUserAppDir()
return dir == userAppDir && strings.HasPrefix(base, "deepin-custom-")
}
func getAppDirs() []string {
dataDirs := basedir.GetSystemDataDirs()
dataDirs = append(dataDirs, basedir.GetUserDataDir())
var dirs []string
for _, dir := range dataDirs {
dirs = append(dirs, path.Join(dir, AppDirName))
}
return dirs
}
func getAppIdByFilePath(file string, appDirs []string) string {
file = filepath.Clean(file)
var desktopId string
for _, dir := range appDirs {
if strings.HasPrefix(file, dir) {
desktopId, _ = filepath.Rel(dir, file)
break
}
}
if desktopId == "" {
return ""
}
return strings.TrimSuffix(desktopId, desktopExt)
}
func runeSliceDiff(key, current []rune) (popCount int, runesPush []rune) {
var i int
kLen := len(key)
cLen := len(current)
if kLen == 0 {
popCount = cLen
return
}
if cLen == 0 {
runesPush = key
return
}
for {
k := key[i]
c := current[i]
//logger.Debugf("[%v] k %v c %v", i, k, c)
if k == c {
i++
if i == kLen {
//logger.Debug("i == key len")
break
}
if i == cLen {
//logger.Debug("i == current len")
break
}
} else {
break
}
}
popCount = cLen - i
for j := i; j < kLen; j++ {
runesPush = append(runesPush, key[j])
}
//logger.Debug("i:", i)
return
}
func getFileCTime(filename string) (int64, error) {
var stat syscall.Stat_t
err := syscall.Stat(filename, &stat)
if err != nil {
return 0, err
}
return int64(stat.Ctim.Sec), nil
}