Merge pull request #136 from el-gringo-alto/argument-parsing

Command line arguments are parsed with the argparse library

README.md

@@ -34,14 +34,14 @@ Python packages:
 ### Command line usage:
 
 ```
-Basic usage:
+Basic command line usage:
-  python zspotify                                      Loads search prompt to find then download a specific track, album or playlist
+  python zspotify <track/album/playlist/episode/artist url>   Downloads the track, album, playlist or podcast episode specified as a command line argument. If an artist url is given, all albums by specified artist will be downloaded. Can take multiple urls.
-  python zspotify <track/album/playlist/episode url>   Downloads the track, album, playlist or podcast episode specified as a command line argument
-  python zspotify <artist url>                         Downloads all albums by specified artist
 
 Extra command line options:
   -p, --playlist       Downloads a saved playlist from your account
   -ls, --liked-songs   Downloads all the liked songs from your account
+  -s, --search         Loads search prompt to find then download a specific track, album or playlist
+  -ns, --no-splash     Suppress the splash screen when loading.
 
 Options that can be configured in zs_config.json:
   ROOT_PATH           Change this path if you don't like the default directory where ZSpotify saves the music

zspotify/__main__.py

@@ -1,4 +1,35 @@
+import argparse
+
 from app import client
 
+
+
 if __name__ == '__main__':
-    client()
+    parser = argparse.ArgumentParser(prog='zspotify',
+        description='A Spotify downloader needing only a python interpreter and ffmpeg.')
+    parser.add_argument('-ns', '--no-splash',
+                        action='store_true',
+                        help='Suppress the splash screen when loading.')
+    group = parser.add_mutually_exclusive_group(required=True)
+    group.add_argument('urls',
+                       type=str,
+                       # action='extend',
+                       default='',
+                       nargs='*',
+                       help='Downloads the track, album, playlist, podcast episode, or all albums by an artist from a url. Can take multiple urls.')
+    group.add_argument('-ls', '--liked-songs',
+                       dest='liked_songs',
+                       action='store_true',
+                       help='Downloads all the liked songs from your account.')
+    group.add_argument('-p', '--playlist',
+                       action='store_true',
+                       help='Downloads a saved playlist from your account.')
+    group.add_argument('-s', '--search',
+                       dest='search_spotify',
+                       action='store_true',
+                       help='Loads search prompt to find then download a specific track, album or playlist')
+
+    parser.set_defaults(func=client)
+
+    args = parser.parse_args()
+    args.func(args)

zspotify/app.py

@@ -1,5 +1,3 @@
-import sys
-
 from librespot.audio.decoders import AudioQuality
 from tabulate import tabulate
 
@@ -15,32 +13,26 @@ from zspotify import ZSpotify
 SEARCH_URL = 'https://api.spotify.com/v1/search'
 
 
-def client() -> None:
+def client(args) -> None:
     """ Connects to spotify to perform query's and get songs to download """
     ZSpotify()
-    splash()
+
+    if not args.no_splash:
+        splash()
 
     if ZSpotify.check_premium():
-        print('[ DETECTED PREMIUM ACCOUNT - USING VERY_HIGH QUALITY ]\n\n')
+        if not args.no_splash:
+            print('[ DETECTED PREMIUM ACCOUNT - USING VERY_HIGH QUALITY ]\n\n')
         ZSpotify.DOWNLOAD_QUALITY = AudioQuality.VERY_HIGH
     else:
-        print('[ DETECTED FREE ACCOUNT - USING HIGH QUALITY ]\n\n')
+        if not args.no_splash:
+            print('[ DETECTED FREE ACCOUNT - USING HIGH QUALITY ]\n\n')
         ZSpotify.DOWNLOAD_QUALITY = AudioQuality.HIGH
 
-    if len(sys.argv) > 1:
+    if args.urls:
-        if sys.argv[1] == '-p' or sys.argv[1] == '--playlist':
+        for spotify_url in args.urls:
-            download_from_user_playlist()
-        elif sys.argv[1] == '-ls' or sys.argv[1] == '--liked-songs':
-            for song in get_saved_tracks():
-                if not song[TRACK][NAME]:
-                    print(
-                        '###   SKIPPING:  SONG DOES NOT EXIST ON SPOTIFY ANYMORE   ###')
-                else:
-                    download_track(song[TRACK][ID], 'Liked Songs/')
-                print('\n')
-        else:
             track_id, album_id, playlist_id, episode_id, show_id, artist_id = regex_input_for_urls(
-                sys.argv[1])
+                spotify_url)
 
             if track_id is not None:
                 download_track(track_id)
@@ -61,7 +53,19 @@ def client() -> None:
                 for episode in get_show_episodes(show_id):
                     download_episode(episode)
 
-    else:
+    if args.playlist:
+        download_from_user_playlist()
+
+    if args.liked_songs:
+        for song in get_saved_tracks():
+            if not song[TRACK][NAME]:
+                print(
+                    '###   SKIPPING:  SONG DOES NOT EXIST ON SPOTIFY ANYMORE   ###')
+            else:
+                download_track(song[TRACK][ID], 'Liked Songs/')
+            print('\n')
+
+    if args.search_spotify:
         search_text = ''
         while len(search_text) == 0:
             search_text = input('Enter search or URL: ')