Add --panicOnWarning flag

Fixes #9357
Fixes #9359

2 files changed, 2 insertions, 2 deletions

diff --git a/commands/commands.go b/commands/commands.go
index b6e8dd469..7a9f9fc9e 100644
--- a/commands/commands.go
+++ b/commands/commands.go
@@ -299,7 +299,7 @@ func (cc *hugoBuilderCommon) handleFlags(cmd *cobra.Command) {
 	cmd.Flags().Bool("enableGitInfo", false, "add Git revision, date and author info to the pages")
 	cmd.Flags().BoolVar(&cc.gc, "gc", false, "enable to run some cleanup tasks (remove unused cache files) after the build")
 	cmd.Flags().StringVar(&cc.poll, "poll", "", "set this to a poll interval, e.g --poll 700ms, to use a poll based approach to watch for file system changes")
-
+	cmd.Flags().BoolVar(&loggers.PanicOnWarning, "panicOnWarning", false, "panic on first WARNING log")
 	cmd.Flags().Bool("templateMetrics", false, "display metrics about template executions")
 	cmd.Flags().Bool("templateMetricsHints", false, "calculate some improvement hints when combined with --templateMetrics")
 	cmd.Flags().BoolP("forceSyncStatic", "", false, "copy all files when static is changed.")
diff --git a/commands/helpers.go b/commands/helpers.go
index 1386e425f..8bd7b18a3 100644
--- a/commands/helpers.go
+++ b/commands/helpers.go
@@ -68,7 +68,7 @@ func newSystemErrorF(format string, a ...interface{}) commandError {
 // Catch some of the obvious user errors from Cobra.
 // We don't want to show the usage message for every error.
 // The below may be to generic. Time will show.
-var userErrorRegexp = regexp.MustCompile("argument|flag|shorthand")
+var userErrorRegexp = regexp.MustCompile("unknown flag")
 
 func isUserError(err error) bool {
 	if cErr, ok := err.(commandError); ok && cErr.isUserError() {