Add arguments to latex_scanner and update Makefile with some defaults.

src/audio_scanner.py

@@ -5,18 +5,17 @@ import re
 from datetime import datetime
 
 
-AUDIO_DIR = "audios/"
-
-def find_audios(index):
+def find_audios(index, audio_dir):
     """
     Finds all audios in a folder that match the given index.
     Audios must be in the format [index]_[YYYY]-[MM]-[DD].mp3
     :param index: An integer denoting the song's index
+    :param audio_dir: The directory where the songs can be found
     :return: A list of matching Audio objects
     """
     res = []
-    for f in listdir(AUDIO_DIR):
-        full_file = join(AUDIO_DIR, f)
+    for f in listdir(audio_dir):
+        full_file = join(audio_dir, f)
         re_date_match = re.match(r"^%03d[_ ](\d{4}-[01]\d-[0-3]\d).mp3$" % index, f)
         if not isfile(full_file) or not re_date_match:
             continue