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touch.go
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touch.go
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package someutils
import (
"errors"
"github.com/laher/uggo"
"os"
"time"
)
func init() {
Register(Util{
"touch",
Touch})
}
func Touch(call []string) error {
flagSet := uggo.NewFlagSetDefault("touch", "[options] [files...]", VERSION)
err := flagSet.Parse(call[1:])
if err != nil {
return err
}
if flagSet.ProcessHelpOrVersion() {
return nil
}
args := flagSet.Args()
if len(args) < 1 {
return errors.New("Not enough args given")
}
for _, filename := range args {
err = touch(filename)
if err != nil {
return err
}
}
return nil
}
func touch(filename string) error {
_, err := os.Stat(filename)
if err != nil {
if os.IsNotExist(err) {
file, err := os.Create(filename)
if err != nil {
return err
}
return file.Close()
} else {
return err
}
} else {
//set access times
os.Chtimes(filename, time.Now(), time.Now())
}
return nil
}