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# Copyright 2014 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.
"""Presubmit script for HTML files in chrome/browser/resources.
See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
for more details about the presubmit API built into gcl.
"""
ACTION_XML_PATH = '../../../tools/metrics/actions/actions.xml'
def CheckUserActionUpdate(input_api, output_api, action_xml_path):
"""Checks if any new user action has been added."""
if any('actions.xml' == input_api.os_path.basename(f) for f in
input_api.change.LocalPaths()):
# If actions.xml is already included in the changelist, the PRESUBMIT
# for actions.xml will do a more complete presubmit check.
return []
file_filter = lambda f: f.LocalPath().endswith('.html')
action_re = r'(^|\s+)metric\s*=\s*"([^ ]*)"'
current_actions = None
for f in input_api.AffectedFiles(file_filter=file_filter):
for line_num, line in f.ChangedContents():
match = input_api.re.search(action_re, line)
if match:
# Loads contents in tools/metrics/actions/actions.xml to memory. It's
# loaded only once.
if not current_actions:
with open(action_xml_path) as actions_f:
current_actions = actions_f.read()
metric_name = match.group(2)
is_boolean = IsBoolean(f.NewContents(), metric_name, input_api)
# Search for the matched user action name in |current_actions|.
if not IsActionPresent(current_actions, metric_name, is_boolean):
return [output_api.PresubmitPromptWarning(
'File %s line %d: %s is missing in '
'tools/metrics/actions/actions.xml. Please run '
'tools/metrics/actions/extract_actions.py to update.'
% (f.LocalPath(), line_num, metric_name), [])]
return []
def IsActionPresent(current_actions, metric_name, is_boolean):
"""Checks if metric_name is defined in the actions file.
Checks whether there's matching entries in an actions.xml file for the given
|metric_name|, depending on whether it is a boolean action.
Args:
current_actions: The content of the actions.xml file.
metric_name: The name for which the check should be done.
is_boolean: Whether the action comes from a boolean control.
"""
if not is_boolean:
action = 'name="{0}"'.format(metric_name)
return action in current_actions
action_disabled = 'name="{0}_Disable"'.format(metric_name)
action_enabled = 'name="{0}_Enable"'.format(metric_name)
return (action_disabled in current_actions and
action_enabled in current_actions)
def IsBoolean(new_content_lines, metric_name, input_api):
"""Check whether action defined in the changed code is boolean or not.
Checks whether the action comes from boolean control based on the HTML
elements attributes.
Args:
new_content_lines: List of changed lines.
metric_name: The name for which the check should be done.
"""
new_content = '\n'.join(new_content_lines)
html_element_re = r'<(.*?)(^|\s+)metric\s*=\s*"%s"(.*?)>' % (metric_name)
type_re = (r'datatype="boolean"|type="checkbox"|type="radio".*?'
'value=("true"|"false")')
match = input_api.re.search(html_element_re, new_content)
return (match and
any(input_api.re.search(type_re, match.group(i)) for i in (1, 3)))
def CheckChangeOnUpload(input_api, output_api):
return CheckUserActionUpdate(input_api, output_api, ACTION_XML_PATH)
def CheckChangeOnCommit(input_api, output_api):
return CheckUserActionUpdate(input_api, output_api, ACTION_XML_PATH)
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