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# Copyright 2016 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.
class ExternsChecker(object):
_UPDATE_MESSAGE = """To update the externs, run:
src/ $ python tools/json_schema_compiler/compiler.py\
%s --root=. --generator=externs > %s"""
def __init__(self, input_api, output_api, api_pairs):
self._input_api = input_api
self._output_api = output_api
self._api_pairs = api_pairs
def RunChecks(self):
bad_files = []
affected = [f.AbsoluteLocalPath() for f in self._input_api.AffectedFiles()]
for path in affected:
pair = self._api_pairs.get(path)
if pair != None and pair not in affected:
bad_files.append({'source': path, 'extern': pair})
results = []
if bad_files:
replacements = (('<source_file>', '<output_file>') if len(bad_files) > 1
else (bad_files[0]['source'], bad_files[0]['extern']))
long_text = self._UPDATE_MESSAGE % replacements
results.append(self._output_api.PresubmitPromptWarning(
str('Found updated extension api files without updated extern files. '
'Please update the extern files.'),
[f['source'] for f in bad_files],
long_text))
return results
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