Merge pull request #362 from kyle-wang/master

rename some function name under /utils

@@ -30,7 +30,7 @@ func FileExists(name string) bool {
 
 // search a file in paths.
 // this is offen used in search config file in /etc ~/
-func LookFile(filename string, paths ...string) (fullpath string, err error) {
+func SearchFile(filename string, paths ...string) (fullpath string, err error) {
 	for _, path := range paths {
 		if fullpath = filepath.Join(path, filename); FileExists(fullpath) {
 			return
@@ -41,7 +41,7 @@ func LookFile(filename string, paths ...string) (fullpath string, err error) {
 }
 
 // like command grep -E
-// for example: GrepE(`^hello`, "hello.txt")
+// for example: GrepFile(`^hello`, "hello.txt")
 // \n is striped while read
 func GrepFile(patten string, filename string) (lines []string, err error) {
 	re, err := regexp.Compile(patten)

@@ -23,7 +23,7 @@ func TestSelfDir(t *testing.T) {
 
 func TestFileExists(t *testing.T) {
 	if !FileExists("./file.go") {
-		t.Errorf("/bin/echo should exists, but it didn't")
+		t.Errorf("./file.go should exists, but it didn't")
 	}
 
 	if FileExists(noExistedFile) {
@@ -31,14 +31,14 @@ func TestFileExists(t *testing.T) {
 	}
 }
 
-func TestLookFile(t *testing.T) {
-	path, err := LookFile(filepath.Base(SelfPath()), SelfDir())
+func TestSearchFile(t *testing.T) {
+	path, err := SearchFile(filepath.Base(SelfPath()), SelfDir())
 	if err != nil {
 		t.Error(err)
 	}
 	t.Log(path)
 
-	path, err = LookFile(noExistedFile, ".")
+	path, err = SearchFile(noExistedFile, ".")
 	if err == nil {
 		t.Errorf("err shouldnot be nil, got path: %s", SelfDir())
 	}