base folder

base/utils.py

@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+
+import os
+
+class BuildError(Exception):
+    def __init__(self, value):
+        self.value_ = value
+    def __str__(self):
+        return self.value_
+
+def read_file_line_by_line(file):
+    if not os.path.exists(file):
+        raise BuildError('file path: %s not exists' % file)
+
+    file_array = []
+    with open(file, "r") as ins:
+        for line in ins:
+            file_array.append(line.strip())
+
+    return file_array