# Copyright 2013 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. import os import shutil import subprocess import sys BASE_DIR = os.path.dirname(os.path.abspath(__file__)) def main(): if len(sys.argv) != 2: print 'usage: %s ' % sys.argv[0] return 1 env = os.environ.copy() env['GYP_GENERATORS'] = 'dump_dependency_json' print 'Dumping dependencies...' popen = subprocess.Popen( ['python', 'build/gyp_chromium'], shell=True, env=env) popen.communicate() if popen.returncode != 0: return popen.returncode print 'Finding problems...' popen = subprocess.Popen( ['python', 'tools/gyp-explain.py', '--dot', 'chrome.gyp:browser#', 'core.gyp:webcore#'], stdout=subprocess.PIPE, shell=True) out, _ = popen.communicate() if popen.returncode != 0: return popen.returncode # Break into pairs to uniq to make graph less of a mess. print 'Simplifying...' deduplicated = set() lines = out.splitlines()[2:-1] for line in lines: line = line.strip('\r\n ;') pairs = line.split(' -> ') for i in range(len(pairs) - 1): deduplicated.add('%s -> %s;' % (pairs[i], pairs[i + 1])) graph = 'strict digraph {\n' + '\n'.join(sorted(deduplicated)) + '\n}' print 'Writing report to %s...' % sys.argv[1] path_count = len(out.splitlines()) with open(os.path.join(BASE_DIR, 'viz.js', 'viz.js')) as f: viz_js = f.read() with open(sys.argv[1], 'w') as f: f.write(PREFIX % path_count) f.write(graph) f.write(SUFFIX % viz_js) print 'Done.' PREFIX = r''' Undesirable Dependencies

Undesirable Dependencies

browser → webcore

%d paths

Rendering...

''' if __name__ == '__main__': sys.exit(main())