Add categories and favicon

* Reorganize resource directories (templates, less, static)
* Show categories on index
* Add favicon

src/latex_scanner.py

@@ -38,9 +38,8 @@ class SongLoader:
         self.category = None
         self.categories = []
         self.songs = []
-        self.scan(latex_file)
-        self.memory = {}
         self.audio_dir = audio_dir
+        self.scan(latex_file)
 
     def scan(self, latex_file):
         main_file = open(latex_file, 'r')
@@ -228,9 +227,16 @@ class SongLoader:
                 continue
             current_verse.add_line(Line(text, extras))
 
+    def sort_categories(self):
+        result = {}
+        for c in self.categories:
+            result[c] = sorted([s for s in self.songs if s.category == c],
+                               key=lambda s: s.number)
+        return result
+
     def print_index(self, index_file, dj_engine):
-        songs = sorted(self.songs, key=lambda s: s.number)
-        html = dj_engine.get_template("index.html").render(Context({'songs': songs}))
+        context = Context({'sorted_categories': self.sort_categories()})
+        html = dj_engine.get_template("index.html").render(context)
         with open(index_file, 'w') as f:
             f.write(html)
 
@@ -264,5 +270,5 @@ if __name__ == '__main__':
     args = parse_args()
     loader = SongLoader(args.latex[0], args.audios[0])
     settings.configure(USE_TZ=False, USE_I18N=False)
-    e = Engine(dirs=["res/html/"])
+    e = Engine(dirs=["res/templates/"])
     loader.generate_html(args.output_dir[0], e)