initial commit

2011-11-22 23:30:42 -06:00
commit d421c1321b
580 changed files with 115527 additions and 0 deletions
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+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+High-level CSS and JS minification class for web2py.
+Called by response.include_files()
+Created by: Ross Peoples <ross.peoples@gmail.com>
+Modified by: Massimo Di Pierro <massimo.dipierro@gmail.com>
+"""
+
+import cssmin
+import jsmin
+import os
+
+def read_binary_file(filename):
+    f = open(filename,'rb')
+    data = f.read()
+    f.close()
+    return data
+
+def write_binary_file(filename,data):
+    f =open(filename,'wb')
+    f.write(data)
+    f.close()
+
+def fix_links(css,static_path):    
+    return css.replace('../',static_path+'/')
+
+def minify(files, path_info, folder, optimize_css, optimize_js,
+           ignore_concat = [],
+           ignore_minity = ['/jquery.js', '/anytime.js']):
+
+    """
+    Input:
+    files: is a list of URLs to JS and CSS files (not repeated)
+    path_info: is the URL of a temp static folder
+    folder: is the application folder
+    optimize_css: is a string of the form 'concat|minify|inline'
+    optimize_js: is a string of the form 'concat|minify|inline'
+    (minify requires concat, inline requires concat also)
+
+    Returns a new list of:
+    - filename (absolute or relative, css or js, actual or temporary) or
+    - ('css:inline','...css..')
+    - ('js:inline','...js..')    
+    """    
+    concat_css = 'concat' in optimize_css
+    minify_css = 'minify' in optimize_css
+    inline_css = 'inline' in optimize_css
+    concat_js = 'concat' in optimize_js
+    minify_js = 'minify' in optimize_js
+    inline_js = 'inline' in optimize_js
+    static_path,temp = path_info.rsplit('/',1)
+    new_files = []
+    css = []
+    js = []
+    for k,filename in enumerate(files):
+        if not filename.startswith('/') or \
+                any(filename.endswith(x) for x in ignore_concat):
+            new_files.append(filename)
+            continue
+
+        abs_filename = os.path.join(folder,'static',
+                                    filename[len(static_path)+1:])        
+
+        if filename.lower().endswith('.css'):
+            if concat_css:
+                contents = read_binary_file(abs_filename)
+                if minify_css:
+                    css.append(cssmin.cssmin(contents))
+                else:
+                    css.append(contents)
+            else:
+                css.append(filename)
+        elif filename.lower().endswith('.js'):
+            if concat_js:
+                contents = read_binary_file(abs_filename)            
+                if minify_js and not filename.endswith('.min.js') and \
+                        not any(filename.endswith(x) for x in ignore_minify):
+                    js.append(jsmin.jsmin(contents))
+                else:
+                    js.append(contents)
+            else:
+                js.append(filename)
+    if css and concat_css:
+        css = '\n\n'.join(contents for contents in css)
+        if inline_css:
+            css = ('css:inline',fix_links(css,static_path))
+        else:
+            temppath = os.path.join(folder,'static',temp)
+            if not os.path.exists(temppath): os.mkdir(temppath)
+            tempfile = os.path.join(temppath,'compressed.css')
+            write_binary_file(tempfile,css)
+            css = path_info+'/compressed.css'
+        new_files.append(css)
+    else:
+        new_files += css    
+    if js and concat_js:
+        js = '\n'.join(contents for contents in js)
+        if inline_js:
+            js = ('js:inline',js)
+        else:
+            temppath = os.path.join(folder,'static',temp)
+            if not os.path.exists(temppath): os.mkdir(temppath)
+            tempfile = os.path.join(folder,'static',temp,'compressed.js')
+            write_binary_file(tempfile,js)
+            js = path_info+'/compressed.js'
+        new_files.append(js)
+    else:
+        new_files += js
+    return new_files
+