skia2/PRESUBMIT.py

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# Copyright (c) 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.
"""Top-level presubmit script for Skia.
See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
for more details about the presubmit API built into gcl.
"""
import os
import sys
SKIA_TREE_STATUS_URL = 'http://skia-tree-status.appspot.com'
def _CheckChangeHasEol(input_api, output_api, source_file_filter=None):
"""Checks that files end with atleast one \n (LF)."""
eof_files = []
for f in input_api.AffectedSourceFiles(source_file_filter):
contents = input_api.ReadFile(f, 'rb')
# Check that the file ends in atleast one newline character.
if len(contents) > 1 and contents[-1:] != '\n':
eof_files.append(f.LocalPath())
if eof_files:
return [output_api.PresubmitPromptWarning(
'These files should end in a newline character:',
items=eof_files)]
return []
def _CommonChecks(input_api, output_api):
"""Presubmit checks common to upload and commit."""
results = []
sources = lambda x: (x.LocalPath().endswith('.h') or
x.LocalPath().endswith('.gypi') or
x.LocalPath().endswith('.gyp') or
x.LocalPath().endswith('.py') or
x.LocalPath().endswith('.sh') or
x.LocalPath().endswith('.cpp'))
results.extend(
_CheckChangeHasEol(
input_api, output_api, source_file_filter=sources))
return results
def CheckChangeOnUpload(input_api, output_api):
"""Presubmit checks for the change on upload.
The following are the presubmit checks:
* Check change has one and only one EOL.
"""
results = []
results.extend(_CommonChecks(input_api, output_api))
return results
def _CheckTreeStatus(input_api, output_api, json_url):
"""Check whether to allow commit.
Args:
input_api: input related apis.
output_api: output related apis.
json_url: url to download json style status.
"""
tree_status_results = input_api.canned_checks.CheckTreeIsOpen(
input_api, output_api, json_url=json_url)
if not tree_status_results:
# Check for caution state only if tree is not closed.
connection = input_api.urllib2.urlopen(json_url)
status = input_api.json.loads(connection.read())
connection.close()
if ('caution' in status['message'].lower() and
os.isatty(sys.stdout.fileno())):
# Display a prompt only if we are in an interactive shell. Without this
# check the commit queue behaves incorrectly because it considers
# prompts to be failures.
short_text = 'Tree state is: ' + status['general_state']
long_text = status['message'] + '\n' + json_url
tree_status_results.append(
output_api.PresubmitPromptWarning(
message=short_text, long_text=long_text))
else:
# Tree status is closed. Put in message about contacting sheriff.
connection = input_api.urllib2.urlopen(
SKIA_TREE_STATUS_URL + '/current-sheriff')
sheriff_details = input_api.json.loads(connection.read())
if sheriff_details:
tree_status_results[0]._message += (
'\n\nPlease contact the current Skia sheriff (%s) if you are trying '
'to submit a build fix\nand do not know how to submit because the '
'tree is closed') % sheriff_details['username']
return tree_status_results
def CheckChangeOnCommit(input_api, output_api):
"""Presubmit checks for the change on commit.
The following are the presubmit checks:
* Check change has one and only one EOL.
* Ensures that the Skia tree is open in
http://skia-tree-status.appspot.com/. Shows a warning if it is in 'Caution'
state and an error if it is in 'Closed' state.
"""
results = []
results.extend(_CommonChecks(input_api, output_api))
results.extend(
_CheckTreeStatus(input_api, output_api, json_url=(
SKIA_TREE_STATUS_URL + '/banner-status?format=json')))
return results