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Date: Mon, 19 Oct 2026 02:39:56 -0700
Subject: [PATCH] =?UTF-8?q?fix(update.sh):=20=E4=BF=AE=E6=AD=A3=20brew=20o?=
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brew outdated 在发现过期包时退出码为 1，原脚本把它当成查询失败，
直接记录警告并跳过升级，kotlin-lsp、jdtls 因此一直未被升级；Kitty
cask 检查也是同样写法。新增 brew_outdated：只有退出码非零且无输出
才视为查询失败。

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
---
 update.sh | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/update.sh b/update.sh
index 062c2c9..111f595 100755
--- a/update.sh
+++ b/update.sh
@@ -150,6 +150,16 @@ refresh_brew_metadata() {
 	brew_metadata_refreshed=1
 }
 
+# 输出过期包列表：brew outdated 发现过期包时退出码为 1，只有无输出且非零才视为查询失败。
+brew_outdated() {
+	brew_outdated_output=$(brew outdated "$@")
+	brew_outdated_status=$?
+	if [ "$brew_outdated_status" -ne 0 ] && [ -z "$brew_outdated_output" ]; then
+		return 1
+	fi
+	printf '%s\n' "$brew_outdated_output"
+}
+
 update_brew_formula_if_installed() {
 	formula=$1
 	description=$2
@@ -159,7 +169,7 @@ update_brew_formula_if_installed() {
 			record_update_failure "$description"
 			return 0
 		}
-		outdated_formula=$(brew outdated --formula --quiet "$formula") || {
+		outdated_formula=$(brew_outdated --formula --quiet "$formula") || {
 			record_update_failure "$description"
 			return 0
 		}
@@ -213,7 +223,7 @@ update_kitty() {
 
 	if command -v brew >/dev/null 2>&1 && brew list --cask kitty >/dev/null 2>&1; then
 		if refresh_brew_metadata; then
-			if outdated_kitty=$(brew outdated --cask --quiet kitty); then
+			if outdated_kitty=$(brew_outdated --cask --quiet kitty); then
 				if [ -z "$outdated_kitty" ]; then
 					say "✓ Kitty 已是最新版本。"
 				else