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 CSS files in the order specified 33 # using <link> tags in a given 'order.html' file. 34 35 from HTMLParser import HTMLParser 36 from cStringIO import StringIO 37 import os.path 38 import sys 39 40 41 class OrderedCSSFilesExtractor(HTMLParser): 42 43 def __init__(self, order_html_name): 44 HTMLParser.__init__(self) 45 self.ordered_css_files = [] 46 order_html = open(order_html_name, 'r') 47 self.feed(order_html.read()) 48 49 def handle_starttag(self, tag, attrs): 50 if tag == 'link': 51 attrs_dict = dict(attrs) 52 if ('type' in attrs_dict and attrs_dict['type'] == 'text/css' and 53 'href' in attrs_dict): 54 self.ordered_css_files.append(attrs_dict['href']) 55 56 57 class PathExpander: 58 59 def __init__(self, paths): 60 self.paths = paths 61 62 def expand(self, filename): 63 last_path = None 64 expanded_name = None 65 for path in self.paths: 66 fname = "%s/%s" % (path, filename) 67 if (os.access(fname, os.F_OK)): 68 if (last_path != None): 69 raise Exception('Ambiguous file %s: found in %s and %s' % 70 (filename, last_path, path)) 71 expanded_name = fname 72 last_path = path 73 return expanded_name 74 75 76 def main(argv): 77 78 if len(argv) < 3: 79 print('usage: %s order.html input_source_dir_1 input_source_dir_2 ... ' 80 'output_file' % argv[0]) 81 return 1 82 83 output_file_name = argv.pop() 84 input_order_file_name = argv[1] 85 extractor = OrderedCSSFilesExtractor(input_order_file_name) 86 # Unconditionally append devTools.css. It will contain concatenated files. 87 extractor.ordered_css_files.append('devTools.css') 88 89 expander = PathExpander(argv[2:]) 90 output = StringIO() 91 92 for input_file_name in extractor.ordered_css_files: 93 full_path = expander.expand(input_file_name) 94 if (full_path is None): 95 raise Exception('File %s referenced in %s not found on any source paths, ' 96 'check source tree for consistency' % 97 (input_file_name, input_order_file_name)) 98 output.write('/* %s */\n\n' % input_file_name) 99 input_file = open(full_path, 'r') 100 output.write(input_file.read()) 101 output.write('\n') 102 input_file.close() 103 104 output_file = open(output_file_name, 'w') 105 output_file.write(output.getvalue()) 106 output_file.close() 107 output.close() 108 109 # Touch output file directory to make sure that Xcode will copy 110 # modified resource files. 111 if sys.platform == 'darwin': 112 output_dir_name = os.path.dirname(output_file_name) 113 os.utime(output_dir_name, None) 114 115 116 if __name__ == '__main__': 117 sys.exit(main(sys.argv)) 118