[ckan#469] Add --clean option to paster minify and add extensions to …

…minified dirs

ckan/lib/cli.py

@@ -1744,35 +1744,62 @@ class MinifyCommand(CkanCommand):
 
     Usage:
 
-        paster minify [FILE|DIRECTORY] ...
+        paster minify [--clean] [FILE|DIRECTORY] ...
 
     for example:
 
         paster minify ckan/public/base
         paster minify ckan/public/base/css/*.css
         paster minify ckan/public/base/css/red.css
+
+    if the --clean option is provided any minified files will be removed.
+
     '''
     summary = __doc__.split('\n')[0]
     usage = __doc__
     min_args = 1
 
     exclude_dirs = ['vendor']
 
+    def __init__(self, name):
+
+        super(MinifyCommand, self).__init__(name)
+
+        self.parser.add_option('--clean', dest='clean',
+            action='store_true', default=False, help='remove any minified files in the path')
+
     def command(self):
         self._load_config()
         for base_path in self.args:
             if os.path.isfile(base_path):
-                self.minify_file(base_path)
+                if self.options.clean:
+                    self.clear_minifyed(base_path)
+                else:
+                    self.minify_file(base_path)
             elif os.path.isdir(base_path):
                 for root, dirs, files in os.walk(base_path):
                     dirs[:] = [d for d in dirs if not d in self.exclude_dirs]
                     for filename in files:
                         path = os.path.join(root, filename)
-                        self.minify_file(path)
+                        if self.options.clean:
+                            self.clear_minifyed(path)
+                        else:
+                            self.minify_file(path)
             else:
                 # Path is neither a file or a dir?
                 continue
 
+    def clear_minifyed(self, path):
+        path_only, extension = os.path.splitext(path)
+
+        if extension not in ('.css', '.js'):
+            # This is not a js or css file.
+            return
+
+        if path_only.endswith('.min'):
+            print 'removing %s' % path
+            os.remove(path)
+
     def minify_file(self, path):
         '''Create the minified version of the given file.