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#!/usr/bin/env python
#
# Copyright (C) 2014 Calum Lind <calumlind@gmail.com>
# Copyright (C) 2010 Damien Churchill <damoxc@gmail.com>
#
# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
# the additional special exception to link portions of this program with the OpenSSL library.
# See LICENSE for more details.
#
"""Minifies the WebUI JS files.
Usage: python minify_web_js.py deluge/ui/web/js/deluge-all
"""
import fileinput
import fnmatch
import os
import subprocess
import sys
from shutil import which
closure_cmd = None
for cmd in ['closure-compiler', 'closure']:
if which(cmd):
closure_cmd = cmd
break
def minify_closure(file_in, file_out):
try:
subprocess.check_call(
[
closure_cmd,
'--warning_level',
'QUIET',
'--language_in=ECMASCRIPT5',
'--js',
file_in,
'--js_output_file',
file_out,
]
)
return True
except subprocess.CalledProcessError:
return False
# Closure outputs smallest files but java-based command, can use rJSmin
# as a python-only fallback.
#
# deluge-all.js: Closure 131K, rJSmin: 148K
#
if not closure_cmd:
try:
from rjsmin import jsmin as minify
except ImportError:
print('Warning: No minifying command found.')
minify = None
def source_files_list(source_dir):
scripts = []
for root, dirnames, filenames in os.walk(source_dir):
dirnames.sort(reverse=True)
files = fnmatch.filter(filenames, '*.js')
files.sort()
order_file = os.path.join(root, '.order')
if os.path.isfile(order_file):
with open(order_file) as _file:
for line in _file:
if line.startswith('+ '):
order_filename = line.split()[1]
files.pop(files.index(order_filename))
files.insert(0, order_filename)
# Ensure root directory files are bottom of list.
if dirnames:
scripts.extend([os.path.join(root, f) for f in files])
else:
for filename in reversed(files):
scripts.insert(0, os.path.join(root, filename))
return scripts
def concat_src_files(file_list, fileout_path):
with open(fileout_path, 'w') as file_out:
file_in = fileinput.input(file_list)
file_out.writelines(file_in)
def minify_file(file_debug, file_minified):
if closure_cmd:
return minify_closure(file_debug, file_minified)
elif minify:
with open(file_minified, 'w') as file_out:
with open(file_debug) as file_in:
file_out.write(minify(file_in.read()))
return True
def minify_js_dir(source_dir):
build_name = os.path.basename(source_dir)
build_dir = os.path.dirname(source_dir)
file_debug_js = os.path.join(build_dir, build_name + '-debug.js')
file_minified_js = os.path.join(build_dir, build_name + '.js')
source_files = source_files_list(source_dir)
if not source_files:
print('No js files found, skipping %s' % source_dir)
return
concat_src_files(source_files, file_debug_js)
print('Minifying %s' % source_dir)
if not minify_file(file_debug_js, file_minified_js):
print('Warning: Failed minifying files %s, debug only' % source_dir)
if os.path.isfile(file_minified_js):
os.remove(file_minified_js)
if __name__ == '__main__':
if len(sys.argv) != 2:
JS_SOURCE_DIRS = [
'deluge/ui/web/js/deluge-all',
'deluge/ui/web/js/extjs/ext-extensions',
]
else:
JS_SOURCE_DIRS = [os.path.abspath(sys.argv[1])]
for js_source_dir in JS_SOURCE_DIRS:
minify_js_dir(js_source_dir)
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