Upstream: Test scripts for Android (phase 1)

build/android/cmd_helper.py

+#!/usr/bin/python
+# Copyright (c) 2011 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 logging
+import subprocess
+
+
+def RunCmd(args, cwd=None):
+  """Opens a subprocess to execute a program and returns its return value.
+
+  Args:
+    args: A string or a sequence of program arguments. The program to execute is
+      the string or the first item in the args sequence.
+    cwd: If not None, the subprocess's current directory will be changed to
+      |cwd| before it's executed.
+  """
+  logging.info(str(args) + ' ' + (cwd or ''))
+  p = subprocess.Popen(args=args, cwd=cwd)
+  return p.wait()
+
+
+def GetCmdOutput(args, cwd=None):
+  """Open a subprocess to execute a program and returns its output.
+
+  Args:
+    args: A string or a sequence of program arguments. The program to execute is
+      the string or the first item in the args sequence.
+    cwd: If not None, the subprocess's current directory will be changed to
+      |cwd| before it's executed.
+  """
+  logging.info(str(args) + ' ' + (cwd or ''))
+  p = subprocess.Popen(args=args, cwd=cwd, stdout=subprocess.PIPE,
+                       stderr=subprocess.PIPE)
+  stdout, stderr = p.communicate()
+  if stderr:
+    logging.critical(stderr)
+  logging.info(stdout[:4096])  # Truncate output longer than 4k.
+  return stdout