Clone of chromium aad1ce808763f59c7a3753e08f1500a104ecc6fd refs/remotes/origin/HEAD
diff --git a/tools/android/checkstyle/checkstyle.py b/tools/android/checkstyle/checkstyle.py
new file mode 100644
index 0000000..25f202f
--- /dev/null
+++ b/tools/android/checkstyle/checkstyle.py
@@ -0,0 +1,69 @@
+# Copyright 2013 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.
+
+"""Script that is used by PRESUBMIT.py to run style checks on Java files."""
+
+import os
+import subprocess
+
+
+CHROMIUM_SRC = os.path.normpath(
+ os.path.join(os.path.dirname(__file__),
+ os.pardir, os.pardir, os.pardir))
+CHECKSTYLE_ROOT = os.path.join(CHROMIUM_SRC, 'third_party', 'checkstyle',
+ 'checkstyle-5.7-all.jar')
+
+
+def RunCheckstyle(input_api, output_api, style_file):
+ if not os.path.exists(style_file):
+ file_error = (' Java checkstyle configuration file is missing: '
+ + style_file)
+ return [output_api.PresubmitError(file_error)]
+
+ # Filter out non-Java files and files that were deleted.
+ java_files = [x.LocalPath() for x in input_api.AffectedFiles(False, False)
+ if os.path.splitext(x.LocalPath())[1] == '.java']
+ if not java_files:
+ return []
+
+ # Run checkstyle
+ checkstyle_env = os.environ.copy()
+ checkstyle_env['JAVA_CMD'] = 'java'
+ try:
+ check = subprocess.Popen(['java', '-cp',
+ CHECKSTYLE_ROOT,
+ 'com.puppycrawl.tools.checkstyle.Main', '-c',
+ style_file] + java_files,
+ stdout=subprocess.PIPE, env=checkstyle_env)
+ stdout, _ = check.communicate()
+ if check.returncode == 0:
+ return []
+ except OSError as e:
+ import errno
+ if e.errno == errno.ENOENT:
+ install_error = (' checkstyle is not installed. Please run '
+ 'build/install-build-deps-android.sh')
+ return [output_api.PresubmitPromptWarning(install_error)]
+
+ # Remove non-error values from stdout
+ errors = stdout.splitlines()
+
+ if errors and errors[0] == 'Starting audit...':
+ del errors[0]
+ if errors and errors[-1] == 'Audit done.':
+ del errors[-1]
+
+ # Filter out warnings
+ errors = [x for x in errors if 'warning: ' not in x]
+ if not errors:
+ return []
+
+ local_path = input_api.PresubmitLocalPath()
+ output = []
+ for error in errors:
+ # Change the full file path to relative path in the output lines
+ full_path, end = error.split(':', 1)
+ rel_path = os.path.relpath(full_path, local_path)
+ output.append(' %s:%s' % (rel_path, end))
+ return [output_api.PresubmitPromptWarning('\n'.join(output))]
