[Findit] Add local git parsers.

appengine/findit/util_scripts/__init__.py

+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import os
+import sys
+
+
+_THIS_DIR = os.path.dirname(os.path.realpath(__file__))
+
+# TODO(katesonia): Figure out why os.getenv('APPLICATION_ID') always return
+# True for local unittest.
+#
+# This hack is due to testing setup and code structure.
+#
+# In testing setup, the root directory appengine/findit would be the current
+# working directory during execution of unittests; and it is automatically
+# added to sys.path or PYTHONPATH.
+#
+# The util_scripts/ are stand-alone local scripts and all the imports start
+# from util_scripts, so added this util_scripts/ directory as working

[stgao, 2016/11/08 21:44:16]

What's "working directory"?  This sounds incorrect to me.

[Sharu Jiang, 2016/11/10 22:28:37]

I think the working directory here is the "current directory", which means the
sys.path[0]. Is that correct?

[stgao, 2016/11/10 22:33:47]

I'm confused with the terms here. But you may want to search around for the
difference between sys.path (or PYTHONPATH) and "current working directory".

The wording here is still misleading though. We need to update before commit.

[Sharu Jiang, 2016/11/11 21:07:09]

Done.

+# directory.
+sys.path.insert(0, _THIS_DIR)
+
+# This hack is because the appengine_config.py is loaded by the testing setup
+# only if it is in the root directory appengine/findit.
+import appengine_config

[stgao, 2016/11/08 21:44:16]

Why we have this here? Do you understand why it is needed for the new code
structure of Predator?

[Sharu Jiang, 2016/11/10 22:28:37]

Done.