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96 lines
2.9 KiB
Python
96 lines
2.9 KiB
Python
# Copyright 2022 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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""" A collection of commonly used functions across depot_tools.
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"""
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import logging
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import os
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import re
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import subprocess
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def depot_tools_version():
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depot_tools_root = os.path.dirname(os.path.abspath(__file__))
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try:
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commit_hash = subprocess.check_output(['git', 'rev-parse', 'HEAD'],
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cwd=depot_tools_root).decode(
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'utf-8', 'ignore')
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return 'git-%s' % commit_hash
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except Exception:
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pass
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# git check failed, let's check last modification of frequently checked file
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try:
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mtime = os.path.getmtime(
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os.path.join(depot_tools_root, 'infra', 'config', 'recipes.cfg'))
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return 'recipes.cfg-%d' % (mtime)
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except Exception:
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return 'unknown'
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def normpath(path):
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'''Version of os.path.normpath that also changes backward slashes to
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forward slashes when not running on Windows.
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'''
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# This is safe to always do because the Windows version of os.path.normpath
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# will replace forward slashes with backward slashes.
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path = path.replace(os.sep, '/')
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return os.path.normpath(path)
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def ListRelevantFilesInSourceCheckout(files, root, match_re, exclude_re):
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"""Finds all files that apply to a given set of source files, e.g. PRESUBMIT.
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If inherit-review-settings-ok is present right under root, looks for matches
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in directories enclosing root.
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Args:
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files: An iterable container containing file paths.
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root: Path where to stop searching.
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match_re: regex to match filename
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exclude_re: regex to exclude filename
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Return:
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List of absolute paths of the existing PRESUBMIT.py scripts.
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"""
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files = [normpath(os.path.join(root, f)) for f in files]
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# List all the individual directories containing files.
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directories = {os.path.dirname(f) for f in files}
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# Ignore root if inherit-review-settings-ok is present.
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if os.path.isfile(os.path.join(root, 'inherit-review-settings-ok')):
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root = None
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# Collect all unique directories that may contain PRESUBMIT.py.
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candidates = set()
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for directory in directories:
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while True:
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if directory in candidates:
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break
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candidates.add(directory)
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if directory == root:
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break
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parent_dir = os.path.dirname(directory)
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if parent_dir == directory:
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# We hit the system root directory.
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break
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directory = parent_dir
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# Look for PRESUBMIT.py in all candidate directories.
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results = []
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for directory in sorted(list(candidates)):
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try:
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for f in os.listdir(directory):
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p = os.path.join(directory, f)
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if os.path.isfile(p) and re.match(match_re,
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f) and not re.match(exclude_re, f):
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results.append(p)
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except OSError:
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pass
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logging.debug('Presubmit files: %s', ','.join(results))
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return results
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