[Findit] Add local_git_repository

appengine/findit/util_scripts/script_util.py

Index: appengine/findit/util_scripts/script_util.py
diff --git a/appengine/findit/util_scripts/script_util.py b/appengine/findit/util_scripts/script_util.py
index 1d9846d437f3a7cb4731b5c728d05b11631c2e02..dc4da5cf06aa4618ecacfb9279df174e69ab996d 100644
--- a/appengine/findit/util_scripts/script_util.py
+++ b/appengine/findit/util_scripts/script_util.py
@@ -4,11 +4,13 @@
 
 """This module contains util functions that local scripts can use."""
 
+import logging
 import os
+import subprocess
 import sys
 
 
-def SetUpSystemPaths():
+def SetUpSystemPaths():  # pragma: no cover
   """Sets system paths so as to import modules in findit, third_party and
   appengine."""
   findit_root_dir = os.path.join(os.path.dirname(__file__), os.path.pardir)
@@ -25,3 +27,24 @@ def SetUpSystemPaths():
 
   # Add Findit root dir to sys.path so that modules in Findit is available.
   sys.path.insert(1, findit_root_dir)
+
+
+# TODO(katesonia): Add local cache for this function.
+def GetCommandOutput(command):
+  """Gets the output stream of executable command.
+
+  Args:
+    command (str): Command to execute to get output.
+
+  Return:
+    Output steam of the command.
+  """
+  p = subprocess.Popen(
+      command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
+  stdoutdata, stderrdata = p.communicate()
+
+  if p.returncode != 0:
+    logging.error('Error running command %s: %s', command, stderrdata)
+    return None
+
+  return stdoutdata