concatenate_css_files.py [plain text]
from __future__ import with_statement
from HTMLParser import HTMLParser
from cStringIO import StringIO
import os.path
import sys
class OrderedCSSFilesExtractor(HTMLParser):
def __init__(self, order_html):
HTMLParser.__init__(self)
self.ordered_css_files = []
self.feed(order_html)
def handle_starttag(self, tag, attrs):
if tag == 'link':
attrs_dict = dict(attrs)
if ('type' in attrs_dict and attrs_dict['type'] == 'text/css' and
'href' in attrs_dict):
self.ordered_css_files.append(attrs_dict['href'])
class PathExpander:
def __init__(self, paths):
self.paths = paths
def expand(self, filename):
last_path = None
expanded_name = None
for path in self.paths:
fname = "%s/%s" % (path, filename)
if (os.access(fname, os.F_OK)):
if (last_path != None):
raise Exception('Ambiguous file %s: found in %s and %s' %
(filename, last_path, path))
expanded_name = fname
last_path = path
return expanded_name
def main(argv):
if len(argv) < 3:
print('usage: %s order.html input_source_dir_1 input_source_dir_2 ... '
'output_file' % argv[0])
return 1
output_file_name = argv.pop()
input_order_file_name = argv[1]
with open(input_order_file_name, 'r') as order_html:
extractor = OrderedCSSFilesExtractor(order_html.read())
extractor.ordered_css_files.append('devTools.css')
expander = PathExpander(argv[2:])
output = StringIO()
for input_file_name in extractor.ordered_css_files:
full_path = expander.expand(input_file_name)
if (full_path is None):
raise Exception('File %s referenced in %s not found on any source paths, '
'check source tree for consistency' %
(input_file_name, input_order_file_name))
output.write('/* %s */\n\n' % input_file_name)
input_file = open(full_path, 'r')
output.write(input_file.read())
output.write('\n')
input_file.close()
output_file = open(output_file_name, 'w')
output_file.write(output.getvalue())
output_file.close()
output.close()
if sys.platform == 'darwin':
output_dir_name = os.path.dirname(output_file_name)
os.utime(output_dir_name, None)
if __name__ == '__main__':
sys.exit(main(sys.argv))