blob: 0b8b5216145c04b3b7cbe3a6004b486764b8f458 [file] [log] [blame]
#!/usr/bin/env python3
# Copyright 2019 The Dawn Authors
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# See the License for the specific language governing permissions and
# limitations under the License.
import argparse, glob, os, sys
def check_in_subdirectory(path, directory):
return path.startswith(directory) and not '/' in path[len(directory):]
def check_is_allowed(path, allowed_dirs):
return any(check_in_subdirectory(path, directory) for directory in allowed_dirs)
def get_all_files_in_dir(find_directory):
result = []
for (directory, _, files) in os.walk(find_directory):
result += [os.path.join(directory, filename) for filename in files]
return result
def run():
# Parse command line arguments
parser = argparse.ArgumentParser(
description = "Removes stale autogenerated files from gen/ directories."
parser.add_argument('--root-dir', type=str, help='The root directory, all other paths in files are relative to it.')
parser.add_argument('--allowed-output-dirs-file', type=str, help='The file containing a list of allowed directories')
parser.add_argument('--stale-dirs-file', type=str, help='The file containing a list of directories to check for stale files')
parser.add_argument('--stamp', type=str, help='A stamp written once this script completes')
args = parser.parse_args()
root_dir = args.root_dir
stamp_file = args.stamp
# Load the list of allowed and stale directories
with open(args.allowed_output_dirs_file) as f:
allowed_dirs = set([os.path.join(root_dir, line.strip()) for line in f.readlines()])
for directory in allowed_dirs:
if not directory.endswith('/'):
print('Allowed directory entry "{}" doesn\'t end with /'.format(directory))
return 1
with open(args.stale_dirs_file) as f:
stale_dirs = set([line.strip() for line in f.readlines()])
# Remove all files in stale dirs that aren't in the allowed dirs.
for stale_dir in stale_dirs:
stale_dir = os.path.join(root_dir, stale_dir)
for candidate in get_all_files_in_dir(stale_dir):
if not check_is_allowed(candidate, allowed_dirs):
# Finished! Write the stamp file so ninja knows to not run this again.
with open(stamp_file, "w") as f:
return 0
if __name__ == "__main__":