init: ROS2 learning suite

start.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+# =============================================================================
+# start.sh —— Linux / WSL / macOS 一键启动脚本。
+#
+# 与 start.ps1 同样四步,只是 shell 改 bash:
+#   1) docker compose build
+#   2) docker compose up -d
+#   3) docker exec ...  bash build.sh
+#   4) docker exec ...  source install/setup.bash && bash
+# =============================================================================
+
+set -euo pipefail  # 出错即停;严格变量未定义检查;管道失败传播。
+cd "$(dirname "$0")"  # 切到本脚本所在目录(确保 docker-compose.yml 路径对)。
+
+echo "[1/4] 构建镜像 (首次约 5-10 分钟)..." >&2
+docker compose -f docker/docker-compose.yml build
+
+echo "[2/4] 启动容器..." >&2
+docker compose -f docker/docker-compose.yml up -d
+
+echo "[3/4] 进入容器并编译..." >&2
+docker exec -it ros2_dev bash -lc "cd /root/ros2_ws && bash build.sh"
+
+echo "[4/4] 进入开发终端..." >&2
+docker exec -it ros2_dev bash -lc "source install/setup.bash && exec bash"