From a43a1be0b44bd986e248e3169d6e294f39638678 Mon Sep 17 00:00:00 2001
From: skyblue <ssx205@gmail.com>
Date: Wed, 11 Dec 2013 22:18:45 +0800
Subject: [PATCH] add some useful func

---
 utils/caller.go      | 10 ++++++++++
 utils/caller_test.go | 14 ++++++++++++++
 utils/file.go        |  2 +-
 utils/file_test.go   |  8 ++++----
 4 files changed, 29 insertions(+), 5 deletions(-)
 create mode 100644 utils/caller.go
 create mode 100644 utils/caller_test.go

diff --git a/utils/caller.go b/utils/caller.go
new file mode 100644
index 00000000..cfa293df
--- /dev/null
+++ b/utils/caller.go
@@ -0,0 +1,10 @@
+package utils
+
+import (
+	"reflect"
+	"runtime"
+)
+
+func GetFuncName(i interface{}) string {
+	return runtime.FuncForPC(reflect.ValueOf(i).Pointer()).Name()
+}
diff --git a/utils/caller_test.go b/utils/caller_test.go
new file mode 100644
index 00000000..1a7e9c75
--- /dev/null
+++ b/utils/caller_test.go
@@ -0,0 +1,14 @@
+package utils
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestGetFuncName(t *testing.T) {
+	name := GetFuncName(TestGetFuncName)
+	t.Log(name)
+	if !strings.HasSuffix(name, ".TestGetFuncName") {
+		t.Error("get func name error")
+	}
+}
diff --git a/utils/file.go b/utils/file.go
index ab765408..65254c1f 100644
--- a/utils/file.go
+++ b/utils/file.go
@@ -43,7 +43,7 @@ func LookFile(filename string, paths ...string) (fullpath string, err error) {
 // like command grep -E
 // for example: GrepE(`^hello`, "hello.txt")
 // \n is striped while read
-func GrepE(patten string, filename string) (lines []string, err error) {
+func GrepFile(patten string, filename string) (lines []string, err error) {
 	re, err := regexp.Compile(patten)
 	if err != nil {
 		return
diff --git a/utils/file_test.go b/utils/file_test.go
index 026d2cf6..a213d765 100644
--- a/utils/file_test.go
+++ b/utils/file_test.go
@@ -22,7 +22,7 @@ func TestSelfDir(t *testing.T) {
 }
 
 func TestFileExists(t *testing.T) {
-	if !FileExists("/bin/echo") {
+	if !FileExists("./file.go") {
 		t.Errorf("/bin/echo should exists, but it didn't")
 	}
 
@@ -44,14 +44,14 @@ func TestLookFile(t *testing.T) {
 	}
 }
 
-func TestGrepE(t *testing.T) {
-	_, err := GrepE("", noExistedFile)
+func TestGrepFile(t *testing.T) {
+	_, err := GrepFile("", noExistedFile)
 	if err == nil {
 		t.Error("expect file-not-existed error, but got nothing")
 	}
 
 	path := filepath.Join(".", "testdata", "grepe.test")
-	lines, err := GrepE(`^\s*[^#]+`, path)
+	lines, err := GrepFile(`^\s*[^#]+`, path)
 	if err != nil {
 		t.Error(err)
 	}