# Lint as: python3
# Copyright 2020 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import re
from typing import List
import owners_data
_IGNORED_FOLDERS = ('out', 'third_party', 'clank', 'build/linux',
'native_client')
_KNOWN_FOLDERS = [
r'^chrome\/browser\/(.*)\/android$', r'^chrome\/browser\/android\/(.*)$',
r'^chrome\/android\/(.*)$',
r'^chrome\/android\/java\/src\/org\/chromium\/chrome\/browser\/(.*)$',
r'^chrome\/android\/features\/(.*)$',
r'^chrome\/android\/javatests\/src\/org\/chromium\/chrome\/browser\/(.*)$',
r'^chrome\/android\/native_java_unittests\/src\/org\/chromium\/chrome\/browser\/(.*)$',
r'^chrome\/android\/junit\/src\/org\/chromium\/chrome\/browser\/(.*)$',
r'^components\/(.*)\/android$',
r'^content\/public\/android\/java\/src\/org\/chromium\/content\/browser\/(.*)$'
]
def get_android_folders(chromium_root: str,
limit_to_dir: str) -> List[owners_data.RequestedPath]:
'''Get all directories containing `android/` in their path.
Use _IGNORED_FOLDERS to exclude commonly returned folders that
need to be excluded from the resultset. Use _KNOWN_FOLDERS to propose
feature names to the folders based on their patterns.
If limit_to_dir is non-empty, only traverse that dir and its subdirectories.
'''
android_folders = []
android_folders_found = set()
for full_root, dirs, _ in os.walk(chromium_root):
assert full_root.startswith(chromium_root)
root = full_root[len(chromium_root) + 1:]
if root.startswith(_IGNORED_FOLDERS):
continue
if limit_to_dir and not root.startswith(limit_to_dir):
continue
for name in dirs:
fullpath = os.path.join(root, name)
for folder_token in _KNOWN_FOLDERS:
found = False
re_search = re.match(folder_token, fullpath, re.IGNORECASE)
if re_search:
feature = re_search.group(1)
if folder_token.endswith('(.*)$'):
if '/' not in feature:
android_folders.append(
owners_data.RequestedPath(fullpath, feature))
found = True
else:
feature = feature.split('/')[0] if '/' in feature else feature
android_folders.append(owners_data.RequestedPath(fullpath, feature))
found = True
if found:
android_folders_found.add(fullpath)
break
if fullpath.endswith('/android') \
and fullpath not in android_folders_found:
feature = fullpath.split('/')[0] if '/' in fullpath\
and not fullpath.startswith('chrome/') else fullpath
android_folders.append(owners_data.RequestedPath(fullpath, feature))
android_folders_found.add(fullpath)
return android_folders
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