1#!/usr/bin/env python 2# 3# Copyright (C) 2010 Google Inc. All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions are 7# met: 8# 9# * Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# * Redistributions in binary form must reproduce the above 12# copyright notice, this list of conditions and the following disclaimer 13# in the documentation and/or other materials provided with the 14# distribution. 15# * Neither the name of Google Inc. nor the names of its 16# contributors may be used to endorse or promote products derived from 17# this software without specific prior written permission. 18# 19# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30# 31 32# This script concatenates in place JS files in the order specified 33# using <script> tags in a given 'order.html' file. 34 35from HTMLParser import HTMLParser 36from cStringIO import StringIO 37 38import jsmin 39import os.path 40import sys 41 42 43class OrderedJSFilesExtractor(HTMLParser): 44 45 def __init__(self, order_html_name): 46 HTMLParser.__init__(self) 47 self.ordered_js_files = [] 48 order_html = open(order_html_name, 'r') 49 self.feed(order_html.read()) 50 51 def handle_starttag(self, tag, attrs): 52 if tag == 'script': 53 attrs_dict = dict(attrs) 54 if ('type' in attrs_dict and attrs_dict['type'] == 'text/javascript' and 'src' in attrs_dict): 55 self.ordered_js_files.append(attrs_dict['src']) 56 57 58class PathExpander: 59 60 def __init__(self, paths): 61 self.paths = paths 62 63 def expand(self, filename): 64 last_path = None 65 expanded_name = None 66 for path in self.paths: 67 fname = "%s/%s" % (path, filename) 68 if (os.access(fname, os.F_OK)): 69 if (last_path != None): 70 raise Exception('Ambiguous file %s: found in %s and %s' % 71 (filename, last_path, path)) 72 expanded_name = fname 73 last_path = path 74 return expanded_name 75 76 77def main(argv): 78 79 if len(argv) < 3: 80 print('usage: %s order.html input_source_dir_1 input_source_dir_2 ... ' 81 'output_file' % argv[0]) 82 return 1 83 84 output_file_name = argv.pop() 85 input_order_file_name = argv[1] 86 extractor = OrderedJSFilesExtractor(input_order_file_name) 87 extractor.ordered_js_files.append('DevTools.js') 88 extractor.ordered_js_files.append('Tests.js') 89 90 expander = PathExpander(argv[2:]) 91 output = StringIO() 92 93 for input_file_name in extractor.ordered_js_files: 94 full_path = expander.expand(input_file_name) 95 if (full_path is None): 96 raise Exception('File %s referenced in %s not found on any source paths, ' 97 'check source tree for consistency' % 98 (input_file_name, input_order_file_name)) 99 output.write('/* %s */\n\n' % input_file_name) 100 input_file = open(full_path, 'r') 101 output.write(input_file.read()) 102 output.write('\n') 103 input_file.close() 104 105 output_file = open(output_file_name, 'w') 106 output_file.write(jsmin.jsmin(output.getvalue())) 107 output_file.close() 108 output.close() 109 110 # Touch output file directory to make sure that Xcode will copy 111 # modified resource files. 112 if sys.platform == 'darwin': 113 output_dir_name = os.path.dirname(output_file_name) 114 os.utime(output_dir_name, None) 115 116if __name__ == '__main__': 117 sys.exit(main(sys.argv)) 118