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package ethutil
import (
"io/ioutil"
"os"
"os/user"
"path"
"strings"
)
func ExpandHomePath(p string) (path string) {
path = p
// Check in case of paths like "/something/~/something/"
if len(path) > 1 && path[:2] == "~/" {
usr, _ := user.Current()
dir := usr.HomeDir
path = strings.Replace(p, "~", dir, 1)
}
return
}
func FileExist(filePath string) bool {
_, err := os.Stat(filePath)
if err != nil && os.IsNotExist(err) {
return false
}
return true
}
func ReadAllFile(filePath string) (string, error) {
file, err := os.Open(filePath)
if err != nil {
return "", err
}
data, err := ioutil.ReadAll(file)
if err != nil {
return "", err
}
return string(data), nil
}
func WriteFile(filePath string, content []byte) error {
fh, err := os.OpenFile(filePath, os.O_TRUNC|os.O_RDWR|os.O_CREATE, os.ModePerm)
if err != nil {
return err
}
defer fh.Close()
_, err = fh.Write(content)
if err != nil {
return err
}
return nil
}
func AbsolutePath(Datadir string, filename string) string {
if path.IsAbs(filename) {
return filename
}
return path.Join(Datadir, filename)
}
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