gml/internal/utils/utils.go
2019-01-14 10:13:57 +01:00

89 lines
2.3 KiB
Go

/*
* GML - Go QML
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Roland Singer <roland.singer[at]desertbit.com>
* Copyright (c) 2019 Sebastian Borchers <sebastian[at]desertbit.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package utils
import (
"os"
"os/exec"
"syscall"
"unicode"
)
// Exists returns whether the given file or directory exists.
func Exists(path string) (bool, error) {
_, err := os.Lstat(path)
if err == nil {
return true, nil
}
if os.IsNotExist(err) {
return false, nil
}
return false, err
}
func RunCommand(env []string, dir, cmd string, args ...string) (err error) {
c := exec.Command(cmd, args...)
c.Dir = dir
c.Env = env
// TODO: also log to a log file.
c.Stderr = os.Stderr
if Verbose {
c.Stdout = os.Stdout
}
return c.Run()
}
func FirstCharToLower(s string) string {
if len(s) == 0 {
return ""
}
// Ensure first char is lower case.
sr := []rune(s)
sr[0] = unicode.ToLower(rune(sr[0]))
return string(sr)
}
func FirstCharToUpper(s string) string {
if len(s) == 0 {
return ""
}
// Ensure first char is lower case.
sr := []rune(s)
sr[0] = unicode.ToUpper(rune(sr[0]))
return string(sr)
}
func GetThreadID() int {
// TODO: check if this is supported in MaxOSX and Windows.
return syscall.Gettid()
}