gfile

util/file/file.go

@@ -156,11 +156,19 @@ func Bytes(file string) (d []byte) {
 	return
 }
 
+// Content returns the contents of file,
+// if read fail, returns "".
+func Content(file string) (d string) {
+	return string(Bytes(file))
+}
+
 // Write writes []byte to file.
 func Write(file string, data []byte, append bool) (err error) {
 	mode := os.O_CREATE | os.O_WRONLY
 	if append {
 		mode |= os.O_APPEND
+	} else {
+		mode |= os.O_TRUNC
 	}
 	f, err := os.OpenFile(file, mode, 0755)
 	if err != nil {

util/file/file_test.go

@@ -178,3 +178,37 @@ func TestCopyFile(t *testing.T) {
 		t.Logf("Expected error: %v", err)
 	}
 }
+
+func TestContent(t *testing.T) {
+	// Create a temporary file for testing
+	content := "This is a test file content."
+	tmpFile, err := ioutil.TempFile("", "testfile.txt")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Remove(tmpFile.Name())
+
+	// Write content to the temporary file
+	_, err = tmpFile.WriteString(content)
+	if err != nil {
+		t.Fatal(err)
+	}
+	tmpFile.Close()
+
+	// Run the Content function with the temporary file
+	result := Content(tmpFile.Name())
+
+	// Check if the result matches the expected content
+	if result != content {
+		t.Errorf("Content(%s) = %s, want %s", tmpFile.Name(), result, content)
+	}
+
+	// Test case for a non-existing file
+	nonExistentFile := "nonexistentfile.txt"
+	result = Content(nonExistentFile)
+
+	// Check if the result is an empty string for a non-existing file
+	if result != "" {
+		t.Errorf("Content(%s) = %s, want %s", nonExistentFile, result, "")
+	}
+}