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| 1 #!/usr/bin/env python | |
| 2 # Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 3 # Use of this source code is governed by a BSD-style license that can be | |
| 4 # found in the LICENSE file. | |
| 5 | |
| 6 """Merges multiple OS-specific gyp dependency lists into one that works on all | |
| 7 of them. | |
| 8 | |
| 9 The logic is relatively simple. Takes the current conditions, add more | |
| 10 condition, find the strict subset. Done. | |
| 11 """ | |
| 12 | |
| 13 import logging | |
| 14 import os | |
| 15 import sys | |
| 16 | |
| 17 from isolate import eval_content, extract_comment | |
| 18 from isolate import load_isolate_as_config, print_all, union | |
| 19 | |
| 20 from utils import tools | |
| 21 | |
| 22 | |
| 23 def load_isolates(items): | |
| 24 """Parses each .isolate file and returns the merged results. | |
| 25 | |
| 26 It only loads what load_isolate_as_config() can process. | |
| 27 | |
| 28 Return values: | |
| 29 files: dict(filename, set(OS where this filename is a dependency)) | |
| 30 dirs: dict(dirame, set(OS where this dirname is a dependency)) | |
| 31 oses: set(all the OSes referenced) | |
| 32 """ | |
| 33 configs = None | |
| 34 for item in items: | |
| 35 item = os.path.abspath(item) | |
| 36 logging.debug('loading %s' % item) | |
| 37 if item == '-': | |
| 38 content = sys.stdin.read() | |
| 39 else: | |
| 40 with open(item, 'r') as f: | |
| 41 content = f.read() | |
| 42 new_config = load_isolate_as_config( | |
| 43 os.path.dirname(item), | |
| 44 eval_content(content), | |
| 45 extract_comment(content)) | |
| 46 logging.debug('has configs: ' + ','.join(map(repr, new_config.by_config))) | |
| 47 configs = union(configs, new_config) | |
| 48 logging.debug('Total configs: ' + ','.join(map(repr, configs.by_config))) | |
| 49 return configs | |
| 50 | |
| 51 | |
| 52 def main(args=None): | |
| 53 tools.disable_buffering() | |
| 54 parser = tools.OptionParserWithLogging( | |
| 55 usage='%prog <options> [file1] [file2] ...') | |
| 56 parser.add_option( | |
| 57 '-o', '--output', help='Output to file instead of stdout') | |
| 58 | |
| 59 options, args = parser.parse_args(args) | |
| 60 | |
| 61 configs = load_isolates(args) | |
| 62 data = configs.make_isolate_file() | |
| 63 if options.output: | |
| 64 with open(options.output, 'wb') as f: | |
| 65 print_all(configs.file_comment, data, f) | |
| 66 else: | |
| 67 print_all(configs.file_comment, data, sys.stdout) | |
| 68 return 0 | |
| 69 | |
| 70 | |
| 71 if __name__ == '__main__': | |
| 72 sys.exit(main()) | |
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