Add modular install and uninstall scripts

install-docker.sh

@@ -0,0 +1,171 @@
+#!/bin/bash
+set -euo pipefail
+
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+BOLD='\033[1m'
+NC='\033[0m'
+
+OS_TYPE=""
+
+info() {
+    echo -e "${GREEN}[INFO]${NC} $1"
+}
+
+warn() {
+    echo -e "${YELLOW}[WARN]${NC} $1"
+}
+
+success() {
+    echo -e "${BLUE}[DONE]${NC} $1"
+}
+
+error() {
+    echo -e "${RED}[ERROR]${NC} $1"
+    exit 1
+}
+
+section() {
+    echo
+    echo -e "${BOLD}${BLUE}== $1 ==${NC}"
+}
+
+detect_system() {
+    case "${OSTYPE:-}" in
+        linux-gnu*) OS_TYPE="linux" ;;
+        darwin*) OS_TYPE="macos" ;;
+        *) error "不支持的操作系统: ${OSTYPE:-unknown}，仅支持 Linux 和 macOS。" ;;
+    esac
+    info "检测到系统: $OS_TYPE"
+}
+
+run_privileged() {
+    if [[ "$(id -u)" -eq 0 ]]; then
+        "$@"
+    elif command -v sudo >/dev/null 2>&1; then
+        sudo "$@"
+    else
+        error "该步骤需要 root 权限，请安装 sudo 或以 root 身份运行。"
+    fi
+}
+
+ensure_homebrew() {
+    if command -v brew >/dev/null 2>&1; then
+        return
+    fi
+
+    info "未检测到 Homebrew，开始安装..."
+    /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
+
+    if [[ -x /opt/homebrew/bin/brew ]]; then
+        eval "$(/opt/homebrew/bin/brew shellenv)"
+    elif [[ -x /usr/local/bin/brew ]]; then
+        eval "$(/usr/local/bin/brew shellenv)"
+    fi
+}
+
+install_dependencies() {
+    section "安装依赖"
+
+    if [[ "$OS_TYPE" == "linux" ]]; then
+        if command -v apt-get >/dev/null 2>&1; then
+            run_privileged apt-get update
+            run_privileged apt-get install -y ca-certificates curl
+        elif command -v dnf >/dev/null 2>&1; then
+            run_privileged dnf install -y ca-certificates curl
+        elif command -v yum >/dev/null 2>&1; then
+            run_privileged yum install -y ca-certificates curl
+        else
+            error "当前 Linux 包管理器不受支持，请手动安装 curl 和 ca-certificates。"
+        fi
+    else
+        ensure_homebrew
+    fi
+}
+
+install_docker_linux() {
+    if command -v docker >/dev/null 2>&1; then
+        warn "检测到 Docker CLI 已存在，跳过下载安装。"
+    else
+        local tmp_script
+        tmp_script="$(mktemp "/tmp/get-docker.XXXXXX.sh")"
+
+        info "下载 Docker 官方安装脚本..."
+        curl -fsSL https://get.docker.com -o "$tmp_script"
+        run_privileged sh "$tmp_script"
+        rm -f "$tmp_script"
+    fi
+
+    run_privileged systemctl enable docker || true
+    run_privileged systemctl start docker || true
+
+    if [[ "$(id -u)" -ne 0 ]] && ! id -nG "$USER" | grep -qw docker; then
+        info "将用户 $USER 加入 docker 用户组..."
+        run_privileged usermod -aG docker "$USER" || warn "加入 docker 用户组失败。"
+    fi
+}
+
+install_docker_macos() {
+    if brew list --cask docker >/dev/null 2>&1; then
+        warn "检测到 Docker Desktop 已安装，跳过安装。"
+        return
+    fi
+
+    info "安装 Docker Desktop..."
+    brew install --cask docker
+}
+
+install_docker() {
+    section "安装 Docker"
+
+    if [[ "$OS_TYPE" == "linux" ]]; then
+        install_docker_linux
+    else
+        install_docker_macos
+    fi
+}
+
+verify_installation() {
+    section "校验安装结果"
+
+    if ! command -v docker >/dev/null 2>&1; then
+        error "安装完成后仍未找到 docker 命令。"
+    fi
+
+    info "Docker 版本: $(docker --version)"
+
+    if docker compose version >/dev/null 2>&1; then
+        info "Docker Compose 版本: $(docker compose version)"
+    else
+        warn "当前尚未检测到 docker compose 插件。"
+    fi
+
+    if ! docker info >/dev/null 2>&1; then
+        warn "暂时无法连接 Docker daemon。Linux 可能需要重新登录，macOS 需要先启动 Docker Desktop。"
+    fi
+}
+
+finalize() {
+    section "完成"
+    if [[ "$OS_TYPE" == "linux" ]]; then
+        echo "如果刚加入 docker 用户组，请重新登录后再无 sudo 使用 Docker。"
+    else
+        echo "首次使用前请先手动启动一次 Docker Desktop。"
+    fi
+    echo "可执行以下命令快速验证："
+    echo "  docker --version && docker compose version"
+    success "Docker 安装流程结束。"
+}
+
+main() {
+    section "Docker 安装脚本"
+    detect_system
+    install_dependencies
+    install_docker
+    verify_installation
+    finalize
+}
+
+main "$@"