Add automated install and stable updates

install.sh

@@ -0,0 +1,132 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+SCRIPT_PATH="${BASH_SOURCE[0]:-$0}"
+SCRIPT_DIR="$(cd "$(dirname -- "$SCRIPT_PATH")" && pwd -P)"
+INSTALL_MODE="system"
+INSTALL_USER="root"
+SYSTEMD_DIR="/etc/systemd/system"
+DRY_RUN=false
+
+usage() {
+  cat <<'USAGE'
+用法：
+  ./install.sh [--user=NAME] [--mode=system|user] [--dry-run]
+
+说明：
+  - system 模式会安装到 /etc/systemd/system
+  - user 模式会安装到 ~/.config/systemd/user
+  - 不会覆盖已有 env.conf 和 exclude.user.list
+  - dry-run 只打印将执行的动作，不实际写入 systemd
+USAGE
+}
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --user=*) INSTALL_USER="${1#*=}"; shift;;
+    --mode=*) INSTALL_MODE="${1#*=}"; shift;;
+    --dry-run) DRY_RUN=true; shift;;
+    -h|--help) usage; exit 0;;
+    *) echo "未知参数：$1" >&2; usage; exit 2;;
+  esac
+done
+
+need_cmd() {
+  command -v "$1" >/dev/null 2>&1 || {
+    echo "缺少命令：$1" >&2
+    exit 2
+  }
+}
+
+need_cmd systemctl
+need_cmd install
+need_cmd sed
+
+if [[ "$INSTALL_MODE" != "system" && "$INSTALL_MODE" != "user" ]]; then
+  echo "无效 --mode：$INSTALL_MODE" >&2
+  exit 2
+fi
+
+if [[ "$INSTALL_MODE" == "system" && "$(id -u)" -ne 0 ]]; then
+  echo "system 模式需要 root 权限" >&2
+  exit 2
+fi
+
+if [[ "$INSTALL_MODE" == "user" ]]; then
+  HOME_DIR="$(getent passwd "$INSTALL_USER" | cut -d: -f6)"
+  if [[ -z "$HOME_DIR" ]]; then
+    echo "无法找到用户：$INSTALL_USER" >&2
+    exit 2
+  fi
+  SYSTEMD_DIR="${HOME_DIR}/.config/systemd/user"
+fi
+
+mkdir -p "${SCRIPT_DIR}/systemd"
+
+if [[ ! -f "${SCRIPT_DIR}/env.conf" ]]; then
+  if $DRY_RUN; then
+    echo "[dry-run] 将创建 ${SCRIPT_DIR}/env.conf"
+  else
+    cp "${SCRIPT_DIR}/env.conf.example" "${SCRIPT_DIR}/env.conf"
+    echo "已创建 ${SCRIPT_DIR}/env.conf"
+  fi
+fi
+
+if [[ ! -f "${SCRIPT_DIR}/exclude.user.list" ]]; then
+  if $DRY_RUN; then
+    echo "[dry-run] 将创建 ${SCRIPT_DIR}/exclude.user.list"
+  else
+    cp "${SCRIPT_DIR}/exclude.user.list.example" "${SCRIPT_DIR}/exclude.user.list"
+    echo "已创建 ${SCRIPT_DIR}/exclude.user.list"
+  fi
+fi
+
+chmod 755 \
+  "${SCRIPT_DIR}/backup.sh" \
+  "${SCRIPT_DIR}/clean_backups.sh" \
+  "${SCRIPT_DIR}/lib/telegram.sh" \
+  "${SCRIPT_DIR}/install.sh" \
+  "${SCRIPT_DIR}/update.sh"
+
+if $DRY_RUN; then
+  echo "[dry-run] 目标 systemd 目录：$SYSTEMD_DIR"
+else
+  mkdir -p "$SYSTEMD_DIR"
+fi
+
+render_unit() {
+  local src="$1"
+  local dst="$2"
+  if $DRY_RUN; then
+    echo "[dry-run] 将渲染 $(basename "$src") -> $dst"
+    return 0
+  fi
+  sed \
+    -e "s|__WORKDIR__|${SCRIPT_DIR}|g" \
+    -e "s|__RUN_USER__|${INSTALL_USER}|g" \
+    "$src" > "$dst"
+
+  if [[ "$INSTALL_MODE" == "user" ]]; then
+    sed -i '/^User=__RUN_USER__$/d;/^User=/d' "$dst"
+  fi
+}
+
+render_unit "${SCRIPT_DIR}/systemd/backup-obs-update.service" "${SYSTEMD_DIR}/backup-obs-update.service"
+render_unit "${SCRIPT_DIR}/systemd/backup-obs-update.timer" "${SYSTEMD_DIR}/backup-obs-update.timer"
+
+if $DRY_RUN; then
+  echo "[dry-run] 将执行 systemctl daemon-reload"
+  echo "[dry-run] 将启用 backup-obs-update.timer"
+elif [[ "$INSTALL_MODE" == "system" ]]; then
+  systemctl daemon-reload
+  systemctl enable --now backup-obs-update.timer
+  echo "已启用 system timer：backup-obs-update.timer"
+  echo "查看状态：systemctl status backup-obs-update.timer"
+  echo "查看日志：journalctl -u backup-obs-update.service -n 100"
+else
+  systemctl --user daemon-reload
+  systemctl --user enable --now backup-obs-update.timer
+  echo "已启用 user timer：backup-obs-update.timer"
+  echo "查看状态：systemctl --user status backup-obs-update.timer"
+  echo "查看日志：journalctl --user -u backup-obs-update.service -n 100"
+fi