Merge branch 'release/0.6.3'

1 files changed, 40 insertions, 0 deletions

diff --git a/ethutil/path.go b/ethutil/path.go
index 97f58ab7e..27022bcfa 100644
--- a/ethutil/path.go
+++ b/ethutil/path.go
@@ -1,6 +1,8 @@
 package ethutil
 
 import (
+	"io/ioutil"
+	"os"
 	"os/user"
 	"strings"
 )
@@ -18,3 +20,41 @@ func ExpandHomePath(p string) (path string) {
 
 	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_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
+}