Add option --config-location

A configfile can now be passed to youtube_dl.

undo changes

Raise parser error if file not found, change to user_conf

change metavar hand helptext for --configfile

Fix help for --configfile

Update help for --configfile

Numbering placeholder in configfile error msg

minor fix

Change option --configfile top --config-file

Fix -config-file error

youtube_dl/__init__.py

@@ -405,6 +405,7 @@ def _real_main(argv=None):
         'postprocessor_args': postprocessor_args,
         'cn_verification_proxy': opts.cn_verification_proxy,
         'geo_verification_proxy': opts.geo_verification_proxy,
+        'configfile': opts.configfile,
 
     }
 

youtube_dl/options.py

@@ -178,6 +178,10 @@ def parseOpts(overrideArguments=None):
         'When given in the global configuration file /etc/youtube-dl.conf: '
         'Do not read the user configuration in ~/.config/youtube-dl/config '
         '(%APPDATA%/youtube-dl/config.txt on Windows)')
+    general.add_option(
+        '--config-file',
+        dest='configfile', metavar='FILE',
+        help='File to read configuration from.')
     general.add_option(
         '--flat-playlist',
         action='store_const', dest='extract_flat', const='in_playlist',
@@ -845,19 +849,29 @@ def parseOpts(overrideArguments=None):
             return conf
 
         command_line_conf = compat_conf(sys.argv[1:])
+        opts, args = parser.parse_args(command_line_conf)
 
         if '--ignore-config' in command_line_conf:
             system_conf = []
             user_conf = []
+        elif '--config-file' in command_line_conf:
+            if not os.path.isfile(opts.configfile):
+                parser.error('Config file {0} not found.'.format(opts.configfile))
+            else:
+                user_conf = _readOptions(opts.configfile)
+                system_conf = []
+
         else:
             system_conf = _readOptions('/etc/youtube-dl.conf')
             if '--ignore-config' in system_conf:
                 user_conf = []
             else:
                 user_conf = _readUserConf()
+
         argv = system_conf + user_conf + command_line_conf
 
         opts, args = parser.parse_args(argv)
+
         if opts.verbose:
             write_string('[debug] System config: ' + repr(_hide_login_info(system_conf)) + '\n')
             write_string('[debug] User config: ' + repr(_hide_login_info(user_conf)) + '\n')