Fix OpenWrt install dependency preflight (#318)

README.md

@@ -265,7 +265,7 @@ cd clash-for-linux
 
 ```bash
 opkg update
-opkg install bash curl tar gzip coreutils-readlink unzip
+opkg install bash curl tar gzip coreutils-readlink coreutils-install coreutils-nohup unzip
 ```
 
 安装与手动管理：

scripts/core/common.sh

@@ -1209,7 +1209,7 @@ is_openwrt() {
 }
 
 openwrt_dependency_hint() {
-  echo "opkg update && opkg install bash curl tar gzip coreutils-readlink unzip"
+  echo "opkg update && opkg install bash curl tar gzip coreutils-readlink coreutils-install coreutils-nohup unzip"
 }
 
 openwrt_project_dir_is_persistent() {
@@ -1240,7 +1240,7 @@ ensure_openwrt_install_supported() {
       ;;
   esac
 
-  for command_name in bash curl tar gzip readlink unzip; do
+  for command_name in bash curl tar gzip readlink install nohup unzip; do
     if ! command -v "$command_name" >/dev/null 2>&1; then
       missing="${missing}${missing:+ }$command_name"
     fi

scripts/dev/check-openwrt-dependencies.sh

@@ -0,0 +1,68 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+PROJECT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
+
+source "$PROJECT_DIR/scripts/core/common.sh"
+
+tmp_dir="$(mktemp -d)"
+trap 'rm -rf "$tmp_dir"' EXIT
+
+openwrt_root="$tmp_dir/openwrt"
+fake_bin="$tmp_dir/bin"
+mkdir -p "$openwrt_root/etc" "$fake_bin"
+: > "$openwrt_root/etc/openwrt_release"
+
+link_command() {
+  local command_name="$1"
+  local command_path
+
+  command_path="$(command -v "$command_name")"
+  ln -s "$command_path" "$fake_bin/$command_name"
+}
+
+for command_name in bash curl tar gzip readlink unzip; do
+  link_command "$command_name"
+done
+
+output_file="$tmp_dir/missing-dependencies.out"
+set +e
+(
+  export CLASH_OPENWRT_ROOT="$openwrt_root"
+  export CLASH_TEST_UNAME_M="aarch64"
+  PATH="$fake_bin"
+  ensure_openwrt_install_supported
+) > "$output_file" 2>&1
+status=$?
+set -e
+
+if [ "$status" -eq 0 ]; then
+  echo "not ok - OpenWrt preflight should reject missing install and nohup commands" >&2
+  exit 1
+fi
+
+if ! grep -Fq "OpenWrt 缺少依赖命令：install nohup" "$output_file"; then
+  echo "not ok - OpenWrt preflight did not report install and nohup together" >&2
+  cat "$output_file" >&2
+  exit 1
+fi
+
+if ! grep -Fq "coreutils-install coreutils-nohup" "$output_file"; then
+  echo "not ok - OpenWrt dependency hint omitted install/nohup packages" >&2
+  cat "$output_file" >&2
+  exit 1
+fi
+
+echo "ok - OpenWrt preflight reports install and nohup packages before downloads"
+
+link_command install
+link_command nohup
+
+(
+  export CLASH_OPENWRT_ROOT="$openwrt_root"
+  export CLASH_TEST_UNAME_M="aarch64"
+  PATH="$fake_bin"
+  ensure_openwrt_install_supported
+)
+
+echo "ok - OpenWrt preflight accepts the complete dependency set"