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)