def render(self, context):
js_name = template.Variable(self.name).resolve(context)
try:
js = settings.COMPRESS_JS[js_name]
except KeyError:
return '' # fail silently, do not return anything if an invalid group is specified
if 'external_urls' in js:
r = ''
for url in js['external_urls']:
r += render_js(js, url)
return r
if settings.COMPRESS:
version = None
if settings.COMPRESS_AUTO:
u, version = needs_update(js['output_filename'],
js['source_filenames'])
if u:
filter_js(js)
else:
filename_base, filename = os.path.split(js['output_filename'])
path_name = static_root(filename_base)
version = get_version_from_file(path_name, filename)
return render_js(js, js['output_filename'], version)
else:
# output source files
r = ''
for source_file in js['source_filenames']:
r += render_js(js, source_file)
return r
def get_version(self, source_files):
# Return the modification time for the newest source file
return str(max([int(os.stat(static_root(f)).st_mtime) for f in source_files]))
def needs_update(self, output_file, source_files, version):
output_file_name = get_output_filename(output_file, version)
compressed_file_full = static_root(output_file_name)
return (int(os.stat(compressed_file_full).st_mtime) < int(version)), version