ipld-eth-server/pkg/plugin/helpers/helpers.go
2019-02-24 21:38:47 -06:00

62 lines
1.0 KiB
Go

package helpers
import (
"io"
"os"
"path/filepath"
"strings"
"syscall"
"github.com/mitchellh/go-homedir"
)
func CleanPath(str string) (string, error) {
path, err := homedir.Expand(filepath.Clean(str))
if err != nil {
return "", err
}
if strings.Contains(path, "$GOPATH") {
env := os.Getenv("GOPATH")
spl := strings.Split(path, "$GOPATH")[1]
path = filepath.Join(env, spl)
}
return path, nil
}
func ClearFiles(files ...string) error {
for _, file := range files {
if _, err := os.Stat(file); err == nil {
err = os.Remove(file)
if err != nil {
return err
}
} else if os.IsNotExist(err) {
// fall through
} else {
return err
}
}
return nil
}
func CopyFile(src, dst string) error {
in, err := os.Open(src)
if err != nil {
return err
}
defer in.Close()
out, err := os.OpenFile(dst, syscall.O_CREAT|syscall.O_EXCL|os.O_WRONLY, os.FileMode(0666)) // Doesn't overwrite files
if err != nil {
return err
}
defer out.Close()
_, err = io.Copy(out, in)
if err != nil {
return err
}
return out.Close()
}