cli: Add --can-handle-url option, useful for scripting.

CHANGELOG.rst

@@ -1,8 +1,20 @@
+Version 1.12.0 (Under development)
+----------------------------------
+
+CLI:
+ - Added :option:`--can-handle-url` option, useful for scripting.
+
+
+Plugins:
+ - hitbox: Updated for services changes. (#648)
+ - youtube: Now handles more URL types.
+
+
 Version 1.11.1 (2014-12-12)
 ---------------------------
 
 Plugins:
-  - twitch: Updated for API changes. (#633)
+ - twitch: Updated for API changes. (#633)
 
 
 Version 1.11.0 (2014-12-10)

src/livestreamer_cli/argparser.py

@@ -201,6 +201,17 @@ general.add_argument(
     Print a list of all currently installed plugins.
     """
 )
+general.add_argument(
+    "--can-handle-url",
+    metavar="URL",
+    help="""
+    Check if Livestreamer has a plugin that can handle the specified URL.
+
+    Returns status code 1 for false and 0 for true.
+
+    Useful for external scripting.
+    """
+)
 general.add_argument(
     "--config",
     action="append",

src/livestreamer_cli/main.py

@@ -844,6 +844,13 @@ def main():
 
     if args.plugins:
         print_plugins()
+    elif args.can_handle_url:
+        try:
+            livestreamer.resolve_url(args.can_handle_url)
+        except NoPluginError:
+            sys.exit(1)
+        else:
+            sys.exit(0)
     elif args.url:
         try:
             setup_options()