From cb5cb6287e098ccd9acd4a7398bad5bee1e299d4 Mon Sep 17 00:00:00 2001
From: Boshen <1430279+Boshen@users.noreply.github.com>
Date: Sat, 26 Oct 2024 08:59:12 +0000
Subject: [PATCH] fix(linter): eprintln unmatched rules warning (#6916)

We can make this a hard error and bail early once stable.
---
 crates/oxc_linter/src/config/rules.rs | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/crates/oxc_linter/src/config/rules.rs b/crates/oxc_linter/src/config/rules.rs
index f0f07a36c..64c308e94 100644
--- a/crates/oxc_linter/src/config/rules.rs
+++ b/crates/oxc_linter/src/config/rules.rs
@@ -59,7 +59,7 @@ impl IntoIterator for OxlintRules {
 }
 
 impl OxlintRules {
-    #[allow(clippy::option_if_let_else, clippy::print_stdout)]
+    #[allow(clippy::option_if_let_else, clippy::print_stderr)]
     pub(crate) fn override_rules(&self, rules_for_override: &mut RuleSet, all_rules: &[RuleEnum]) {
         use itertools::Itertools;
         let mut rules_to_replace: Vec<RuleWithSeverity> = vec![];
@@ -134,10 +134,11 @@ impl OxlintRules {
         }
 
         if !rules_not_matched.is_empty() {
-            println!("The following rules do not match the currently supported rules:");
-            for rule in rules_not_matched {
-                println!("{rule}");
-            }
+            let rules = rules_not_matched.join("\n");
+            let error = Error::from(OxcDiagnostic::warn(format!(
+                "The following rules do not match the currently supported rules:\n{rules}"
+            )));
+            eprintln!("{error:?}");
         }
     }
 }