From 830944682f298251ba58d8dcdbefbb414857e704 Mon Sep 17 00:00:00 2001
From: CN-JS-HuiBai <huyang@littlediary.cn>
Date: Thu, 16 Apr 2026 21:13:07 +0800
Subject: [PATCH] =?UTF-8?q?=E5=AE=8C=E5=96=84=E5=92=8C=E4=BF=AE=E6=94=B9RE?=
 =?UTF-8?q?ADME?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md  |  9 +++----
 install.sh | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 72 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index 3593a822..05f421d5 100644
--- a/README.md
+++ b/README.md
@@ -51,6 +51,7 @@
   - `/etc/sing-box/config.d/10-base.json`
   - `/etc/sing-box/config.d/route.json`
   - `/etc/sing-box/config.d/outbound.json`
+- 旧版如果遗留 `/etc/sing-box/config.d/20-outbounds.json`，请不要与 `outbound.json` 同时保留，否则可能出现重复 outbound tag 导致启动失败
 - 安装后的服务名为：
   - `singbox.service`
 
@@ -71,17 +72,13 @@
 
 ### 1. 编译并安装
 
-在 Linux 服务器上进入仓库目录：
+在 Linux 服务器上执行脚本：
 
 ```bash
 curl -fsSL https://s3.cloudyun.top/downloads/singbox/install.sh | bash
 ```
 `install.sh` 默认会从 `https://s3.cloudyun.top/downloads/singbox` 下载对应架构的预编译 `sing-box` 二进制，再继续进入面板和服务配置流程。
-
-升级已安装的 sing-box：
-
-```bash
-curl -fsSL https://s3.cloudyun.top/downloads/singbox/update.sh | bash
+该脚本同时具有更新的功能
 ```
 `update.sh` 会从同一发布地址下载对应架构的 `sing-box` 二进制，并自动重启已检测到的 `singbox` 或 `sing-box` 服务。
 
diff --git a/install.sh b/install.sh
index 124ac5f3..0c2315b3 100644
--- a/install.sh
+++ b/install.sh
@@ -12,6 +12,7 @@ CONFIG_MERGE_DIR="$CONFIG_DIR/config.d"
 CONFIG_BASE_FILE="$CONFIG_MERGE_DIR/10-base.json"
 CONFIG_ROUTE_FILE="$CONFIG_MERGE_DIR/route.json"
 CONFIG_OUTBOUNDS_FILE="$CONFIG_MERGE_DIR/outbound.json"
+LEGACY_CONFIG_OUTBOUNDS_FILE="$CONFIG_MERGE_DIR/20-outbounds.json"
 WORK_DIR="/var/lib/sing-box"
 BINARY_PATH="/usr/local/bin/sing-box"
 SERVICE_NAME="singbox"
@@ -143,7 +144,7 @@ detect_v2bx() {
 }
 
 detect_existing_installation() {
-    if [[ -x "$BINARY_PATH" || -f "$SERVICE_FILE" || -f "$CONFIG_BASE_FILE" || -f "$CONFIG_ROUTE_FILE" || -f "$CONFIG_OUTBOUNDS_FILE" || -f "$CONFIG_DIR/config.json" ]]; then
+    if [[ -x "$BINARY_PATH" || -f "$SERVICE_FILE" || -f "$CONFIG_BASE_FILE" || -f "$CONFIG_ROUTE_FILE" || -f "$CONFIG_OUTBOUNDS_FILE" || -f "$LEGACY_CONFIG_OUTBOUNDS_FILE" || -f "$CONFIG_DIR/config.json" ]]; then
         EXISTING_INSTALL=1
     fi
 
@@ -415,6 +416,70 @@ write_default_outbound_config() {
 EOF
 }
 
+compact_default_outbound_config() {
+    cat <<'EOF' | tr -d '[:space:]'
+{
+  "outbounds": [
+    {
+      "type": "direct",
+      "tag": "direct"
+    }
+  ]
+}
+EOF
+}
+
+compact_file_contents() {
+    local path="$1"
+    tr -d '[:space:]' < "$path"
+}
+
+is_default_outbound_config() {
+    local path="$1"
+    if [[ ! -f "$path" ]]; then
+        return 1
+    fi
+    [[ "$(compact_file_contents "$path")" == "$(compact_default_outbound_config)" ]]
+}
+
+normalize_outbound_config_layout() {
+    if [[ -f "$LEGACY_CONFIG_OUTBOUNDS_FILE" && ! -f "$CONFIG_OUTBOUNDS_FILE" ]]; then
+        mv "$LEGACY_CONFIG_OUTBOUNDS_FILE" "$CONFIG_OUTBOUNDS_FILE"
+        echo -e "${YELLOW}Migrated legacy outbound config to ${CONFIG_OUTBOUNDS_FILE}${NC}"
+        return 0
+    fi
+
+    if [[ ! -f "$LEGACY_CONFIG_OUTBOUNDS_FILE" || ! -f "$CONFIG_OUTBOUNDS_FILE" ]]; then
+        return 0
+    fi
+
+    if [[ "$(compact_file_contents "$LEGACY_CONFIG_OUTBOUNDS_FILE")" == "$(compact_file_contents "$CONFIG_OUTBOUNDS_FILE")" ]]; then
+        backup_path_if_exists "$LEGACY_CONFIG_OUTBOUNDS_FILE"
+        rm -f "$LEGACY_CONFIG_OUTBOUNDS_FILE"
+        echo -e "${YELLOW}Removed duplicate legacy outbound config: ${LEGACY_CONFIG_OUTBOUNDS_FILE}${NC}"
+        return 0
+    fi
+
+    if is_default_outbound_config "$CONFIG_OUTBOUNDS_FILE"; then
+        backup_path_if_exists "$CONFIG_OUTBOUNDS_FILE"
+        rm -f "$CONFIG_OUTBOUNDS_FILE"
+        mv "$LEGACY_CONFIG_OUTBOUNDS_FILE" "$CONFIG_OUTBOUNDS_FILE"
+        echo -e "${YELLOW}Replaced installer default outbound config with legacy custom config from ${LEGACY_CONFIG_OUTBOUNDS_FILE}${NC}"
+        return 0
+    fi
+
+    if is_default_outbound_config "$LEGACY_CONFIG_OUTBOUNDS_FILE"; then
+        backup_path_if_exists "$LEGACY_CONFIG_OUTBOUNDS_FILE"
+        rm -f "$LEGACY_CONFIG_OUTBOUNDS_FILE"
+        echo -e "${YELLOW}Removed legacy default outbound config to avoid duplicate outbound tags.${NC}"
+        return 0
+    fi
+
+    echo -e "${RED}Both ${CONFIG_OUTBOUNDS_FILE} and ${LEGACY_CONFIG_OUTBOUNDS_FILE} exist and contain different outbound definitions.${NC}"
+    echo -e "${RED}Please merge them into a single config file before rerunning the installer to avoid duplicate outbound tags.${NC}"
+    exit 1
+}
+
 load_v2bx_defaults() {
     if [[ -z "$V2BX_CONFIG_PATH" ]] && ! find_v2bx_config; then
         return 1
@@ -798,6 +863,7 @@ echo -e "${YELLOW}Generating configuration...${NC}"
 backup_path_if_exists "$CONFIG_BASE_FILE"
 backup_path_if_exists "$CONFIG_ROUTE_FILE"
 backup_path_if_exists "$CONFIG_OUTBOUNDS_FILE"
+backup_path_if_exists "$LEGACY_CONFIG_OUTBOUNDS_FILE"
 backup_path_if_exists "$CONFIG_DIR/config.json"
 backup_path_if_exists "$SERVICE_FILE"
 
@@ -825,6 +891,8 @@ ${SERVICE_JSON}
 }
 EOF
 
+normalize_outbound_config_layout
+
 if [[ -f "$CONFIG_DIR/config.json" ]]; then
     rm -f "$CONFIG_ROUTE_FILE" "$CONFIG_OUTBOUNDS_FILE"
     if ! extract_legacy_config_sections "$CONFIG_DIR/config.json"; then