summaryrefslogtreecommitdiffstats
path: root/minify_web_js.py
diff options
context:
space:
mode:
Diffstat (limited to 'minify_web_js.py')
-rwxr-xr-xminify_web_js.py134
1 files changed, 134 insertions, 0 deletions
diff --git a/minify_web_js.py b/minify_web_js.py
new file mode 100755
index 0000000..ff459e7
--- /dev/null
+++ b/minify_web_js.py
@@ -0,0 +1,134 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+# 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
+
+"""
+
+from __future__ import print_function, unicode_literals
+
+import fileinput
+import fnmatch
+import os
+import subprocess
+import sys
+from distutils.spawn import find_executable
+
+closure_cmd = None
+for cmd in ['closure-compiler', 'closure']:
+ if find_executable(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 it is a java-based command, so have slimit
+# as a python-only fallback.
+#
+# deluge-all.js: Closure 127K, Slimit: 143K, JSMin: 162K
+#
+if not closure_cmd:
+ try:
+ from slimit import minify 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, 'r') 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, 'r') 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 __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)