refactor: 重构 tools.Read 函数

pkg/ssh/ssh.go

@@ -68,5 +68,10 @@ func NewSSHClient(conf *SSHClientConfig) (*ssh.Client, error) {
 }
 
 func getKey(keyPath string) (ssh.Signer, error) {
-	return ssh.ParsePrivateKey([]byte(tools.Read(keyPath)))
+	key, err := tools.Read(keyPath)
+	if err != nil {
+		return nil, err
+	}
+
+	return ssh.ParsePrivateKey([]byte(key))
 }

pkg/tools/system.go

@@ -25,14 +25,9 @@ func Write(path string, data string, permission os.FileMode) error {
 }
 
 // Read 读取文件
-// TODO 重构带 error 返回
-func Read(path string) string {
+func Read(path string) (string, error) {
 	data, err := os.ReadFile(path)
-	if err != nil {
-		return ""
-	}
-
-	return string(data)
+	return string(data), err
 }
 
 // Remove 删除文件/目录

pkg/tools/system_test.go

@@ -35,7 +35,9 @@ func (s *SystemHelperTestSuite) TestRead() {
 	err := os.WriteFile(filePath, []byte("test data"), 0644)
 	s.Nil(err)
 
-	s.Equal("test data", Read(filePath))
+	data, err := Read(filePath)
+	s.Nil(err)
+	s.Equal("test data", data)
 }
 
 func (s *SystemHelperTestSuite) TestRemove() {