Now --all-sub is a modifier to --write-sub and --write-auto-sub (closes #1412)

For keeping backwards compatibility --all-sub sets --write-sub if --write-auto-sub is not given

test/test_dailymotion_subtitles.py

@@ -40,6 +40,7 @@ class TestDailymotionSubtitles(unittest.TestCase):
         subtitles = self.getSubtitles()
         self.assertEqual(md5(subtitles['fr']), '594564ec7d588942e384e920e5341792')
     def test_allsubtitles(self):
+        self.DL.params['writesubtitles'] = True
         self.DL.params['allsubtitles'] = True
         subtitles = self.getSubtitles()
         self.assertEqual(len(subtitles.keys()), 5)
@@ -54,6 +55,7 @@ class TestDailymotionSubtitles(unittest.TestCase):
         self.assertTrue(len(subtitles.keys()) == 0)
     def test_nosubtitles(self):
         self.url = 'http://www.dailymotion.com/video/x12u166_le-zapping-tele-star-du-08-aout-2013_tv'
+        self.DL.params['writesubtitles'] = True
         self.DL.params['allsubtitles'] = True
         subtitles = self.getSubtitles()
         self.assertEqual(len(subtitles), 0)

test/test_youtube_subtitles.py

@@ -41,6 +41,7 @@ class TestYoutubeSubtitles(unittest.TestCase):
         subtitles = self.getSubtitles()
         self.assertEqual(md5(subtitles['it']), '164a51f16f260476a05b50fe4c2f161d')
     def test_youtube_allsubtitles(self):
+        self.DL.params['writesubtitles'] = True
         self.DL.params['allsubtitles'] = True
         subtitles = self.getSubtitles()
         self.assertEqual(len(subtitles.keys()), 13)
@@ -66,6 +67,7 @@ class TestYoutubeSubtitles(unittest.TestCase):
         self.assertTrue(subtitles['it'] is not None)
     def test_youtube_nosubtitles(self):
         self.url = 'sAjKT8FhjI8'
+        self.DL.params['writesubtitles'] = True
         self.DL.params['allsubtitles'] = True
         subtitles = self.getSubtitles()
         self.assertEqual(len(subtitles), 0)

youtube_dl/YoutubeDL.py

@@ -74,6 +74,7 @@ class YoutubeDL(object):
     writesubtitles:    Write the video subtitles to a file
     writeautomaticsub: Write the automatic subtitles to a file
     allsubtitles:      Downloads all the subtitles of the video
+                       (requires writesubtitles or writeautomaticsub)
     listsubtitles:     Lists all available subtitles for the video
     subtitlesformat:   Subtitle format [srt/sbv/vtt] (default=srt)
     subtitleslangs:    List of languages of the subtitles to download
@@ -499,8 +500,7 @@ class YoutubeDL(object):
                 return
 
         subtitles_are_requested = any([self.params.get('writesubtitles', False),
-                                       self.params.get('writeautomaticsub'),
-                                       self.params.get('allsubtitles', False)])
+                                       self.params.get('writeautomaticsub')])
 
         if  subtitles_are_requested and 'subtitles' in info_dict and info_dict['subtitles']:
             # subtitles download errors are already managed as troubles in relevant IE

youtube_dl/__init__.py

@@ -533,6 +533,11 @@ def _real_main(argv=None):
     else:
         date = DateRange(opts.dateafter, opts.datebefore)
 
+    # --all-sub automatically sets --write-sub if --write-auto-sub is not given
+    # this was the old behaviour if only --all-sub was given.
+    if opts.allsubtitles and (opts.writeautomaticsub == False):
+        opts.writesubtitles = True
+
     if sys.version_info < (3,):
         # In Python 2, sys.argv is a bytestring (also note http://bugs.python.org/issue2128 for Windows systems)
         if opts.outtmpl is not None:

youtube_dl/extractor/subtitles.py

@@ -10,8 +10,7 @@ class SubtitlesInfoExtractor(InfoExtractor):
     @property
     def _have_to_download_any_subtitles(self):
         return any([self._downloader.params.get('writesubtitles', False),
-                    self._downloader.params.get('writeautomaticsub'),
-                    self._downloader.params.get('allsubtitles', False)])
+                    self._downloader.params.get('writeautomaticsub')])
 
     def _list_available_subtitles(self, video_id, webpage=None):
         """ outputs the available subtitles for the video """
@@ -34,7 +33,7 @@ class SubtitlesInfoExtractor(InfoExtractor):
         available_subs_list = {}
         if self._downloader.params.get('writeautomaticsub', False):
             available_subs_list.update(self._get_available_automatic_caption(video_id, video_webpage))
-        if self._downloader.params.get('writesubtitles', False) or self._downloader.params.get('allsubtitles', False):
+        if self._downloader.params.get('writesubtitles', False):
             available_subs_list.update(self._get_available_subtitles(video_id))
 
         if not available_subs_list:  # error, it didn't get the available subtitles