Suppress help for all deprecated options and print warning when used

youtube_dl/YoutubeDL.py

@@ -328,11 +328,21 @@ def __init__(self, params=None, auto_init=True):
         self.params.update(params)
         self.cache = Cache(self)
 
-        if self.params.get('cn_verification_proxy') is not None:
+        def check_deprecated(param, option, suggestion):
-            self.report_warning('--cn-verification-proxy is deprecated. Use --geo-verification-proxy instead.')
+            if self.params.get(param) is not None:
+                self.report_warning(
+                    '%s is deprecated. Use %s instead.' % (option, suggestion))
+                return True
+            return False
+
+        if check_deprecated('cn_verification_proxy', '--cn-verification-proxy', '--geo-verification-proxy'):
             if self.params.get('geo_verification_proxy') is None:
                 self.params['geo_verification_proxy'] = self.params['cn_verification_proxy']
 
+        check_deprecated('autonumber_size', '--autonumber-size', 'output template with %(autonumber)0Nd, where N in the number of digits')
+        check_deprecated('autonumber', '--auto-number', '-o "%(autonumber)s-%(title)s.%(ext)s"')
+        check_deprecated('usetitle', '--title', '-o "%(title)s-%(id)s.%(ext)s"')
+
         if params.get('bidi_workaround', False):
             try:
                 import pty

youtube_dl/__init__.py

@@ -416,6 +416,9 @@ def parse_retries(retries):
         'config_location': opts.config_location,
         'geo_bypass': opts.geo_bypass,
         'geo_bypass_country': opts.geo_bypass_country,
+        # just for deprecation check
+        'autonumber': opts.autonumber if opts.autonumber is True else None,
+        'usetitle': opts.usetitle if opts.usetitle is True else None,
     }
 
     with YoutubeDL(ydl_opts) as ydl:

youtube_dl/options.py

@@ -679,10 +679,8 @@ def _scrub_eq(o):
         help=('Output filename template, see the "OUTPUT TEMPLATE" for all the info'))
     filesystem.add_option(
         '--autonumber-size',
-        dest='autonumber_size', metavar='NUMBER', default=5, type=int,
+        dest='autonumber_size', metavar='NUMBER', type=int,
-        help='[deprecated; use output template with %(autonumber)0Nd, where N in the number of digits] '
+        help=optparse.SUPPRESS_HELP)
-             'Specify the number of digits in %(autonumber)s when it is present '
-             'in output filename template or --auto-number option is given (default is %default)')
     filesystem.add_option(
         '--autonumber-start',
         dest='autonumber_start', metavar='NUMBER', default=1, type=int,
@@ -694,15 +692,15 @@ def _scrub_eq(o):
     filesystem.add_option(
         '-A', '--auto-number',
         action='store_true', dest='autonumber', default=False,
-        help='[deprecated; use -o "%(autonumber)s-%(title)s.%(ext)s" ] Number downloaded files starting from 00000')
+        help=optparse.SUPPRESS_HELP)
     filesystem.add_option(
         '-t', '--title',
         action='store_true', dest='usetitle', default=False,
-        help='[deprecated] Use title in file name (default)')
+        help=optparse.SUPPRESS_HELP)
     filesystem.add_option(
         '-l', '--literal', default=False,
         action='store_true', dest='usetitle',
-        help='[deprecated] Alias of --title')
+        help=optparse.SUPPRESS_HELP)
     filesystem.add_option(
         '-w', '--no-overwrites',
         action='store_true', dest='nooverwrites', default=False,