Make outtmpl more robust and catch errors early

1 files changed, 11 insertions, 0 deletions

diff --git a/yt_dlp/__init__.py b/yt_dlp/__init__.py
index 45a29d3c7..6d6b0dd66 100644
--- a/yt_dlp/__init__.py
+++ b/yt_dlp/__init__.py
@@ -24,6 +24,7 @@ from .utils import (
     DateRange,
     decodeOption,
     DownloadError,
+    error_to_compat_str,
     ExistingVideoReached,
     expand_path,
     match_filter_func,
@@ -307,6 +308,16 @@ def _real_main(argv=None):
         else:
             _unused_compat_opt('filename')
 
+    def validate_outtmpl(tmpl, msg):
+        err = YoutubeDL.validate_outtmpl(tmpl)
+        if err:
+            parser.error('invalid %s %r: %s' % (msg, tmpl, error_to_compat_str(err)))
+
+    for k, tmpl in opts.outtmpl.items():
+        validate_outtmpl(tmpl, '%s output template' % k)
+    for tmpl in opts.forceprint:
+        validate_outtmpl(tmpl, 'print template')
+
     if opts.extractaudio and not opts.keepvideo and opts.format is None:
         opts.format = 'bestaudio/best'