From 52dfef1a8c3c7d47d5bfda8811e2c6830b42865b Mon Sep 17 00:00:00 2001
From: Turiiya <34311583+ttytm@users.noreply.github.com>
Date: Thu, 30 May 2024 16:51:30 +0200
Subject: [PATCH] vfmt: exit with error code if encountering diffs with `-diff`
 flag (#21603)

---
 cmd/tools/vfmt.v | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/cmd/tools/vfmt.v b/cmd/tools/vfmt.v
index f0c9983ebe..efd356e1fb 100644
--- a/cmd/tools/vfmt.v
+++ b/cmd/tools/vfmt.v
@@ -145,7 +145,9 @@ fn main() {
 	}
 	ecode := if has_internal_error { 5 } else { 0 }
 	if errors > 0 {
-		eprintln('Encountered a total of: ${errors} formatting errors.')
+		if !foptions.is_diff {
+			eprintln('Encountered a total of: ${errors} formatting errors.')
+		}
 		match true {
 			foptions.is_noerror { exit(0 + ecode) }
 			foptions.is_verify { exit(1 + ecode) }
@@ -245,7 +247,7 @@ fn (mut foptions FormatOptions) post_process_file(file string, formatted_file_pa
 			return
 		}
 		println(diff.compare_files(file, formatted_file_path)!)
-		return
+		return error('')
 	}
 	if foptions.is_verify {
 		if !is_formatted_different {