Phase5

apps/node-agent/internal/files/safe.go

@@ -229,6 +229,30 @@ func WriteFile(dataRoot, relativePath, content string, create bool) error {
 	return nil
 }
 
+// DeleteFile removes a file relative to dataRoot.
+func DeleteFile(dataRoot, relativePath string) error {
+	filePath, err := ResolvePath(dataRoot, relativePath)
+	if err != nil {
+		return err
+	}
+	if err := rejectSymlinks(dataRoot, filePath); err != nil {
+		return err
+	}
+
+	info, err := os.Lstat(filePath)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return ErrNotFound
+		}
+		return err
+	}
+	if info.IsDir() {
+		return ErrIsDirectory
+	}
+
+	return os.Remove(filePath)
+}
+
 func rejectSymlinks(dataRoot, target string) error {
 	root, err := filepath.Abs(filepath.Clean(dataRoot))
 	if err != nil {