99 lines
2.9 KiB
Bash
99 lines
2.9 KiB
Bash
#!/usr/bin/env bash
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set -euo pipefail
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PORT="${PORT:-15124}"
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HOST="${HOST:-0.0.0.0}"
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APP_MODULE="${APP_MODULE:-app.py}"
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PID_FILE="${PID_FILE:-backend.pid}"
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LOG_FILE="${LOG_FILE:-backend.log}"
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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cd "$SCRIPT_DIR"
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echo "检查端口 ${PORT} ..."
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if command -v ss >/dev/null 2>&1; then
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if ss -ltn | awk '{print $4}' | grep -Eq "(^|:)${PORT}$"; then
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echo "错误: 端口 ${PORT} 已被占用，请先释放后再启动。"
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exit 1
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fi
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elif command -v netstat >/dev/null 2>&1; then
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if netstat -ltn 2>/dev/null | awk '{print $4}' | grep -Eq "(^|:)${PORT}$"; then
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echo "错误: 端口 ${PORT} 已被占用，请先释放后再启动。"
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exit 1
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fi
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else
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echo "警告: 未找到 ss 或 netstat，跳过端口占用检查。"
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fi
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echo "端口 ${PORT} 未被占用。"
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echo "工作目录已切换至: ${SCRIPT_DIR}"
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PYTHON_BIN=""
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if [[ -x "${SCRIPT_DIR}/venv/bin/python" ]]; then
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PYTHON_BIN="${SCRIPT_DIR}/venv/bin/python"
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elif [[ -x "${SCRIPT_DIR}/.venv/bin/python" ]]; then
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PYTHON_BIN="${SCRIPT_DIR}/.venv/bin/python"
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elif command -v python3 >/dev/null 2>&1; then
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PYTHON_BIN="$(command -v python3)"
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elif command -v python >/dev/null 2>&1; then
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PYTHON_BIN="$(command -v python)"
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else
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echo "错误: 未找到可用的 Python，请先安装 Python 3.9+。"
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exit 1
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fi
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echo "使用 Python: ${PYTHON_BIN}"
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"${PYTHON_BIN}" - <<'PY'
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import sys
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major, minor = sys.version_info[:2]
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if (major, minor) < (3, 9):
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print(f"错误: 当前 Python 版本为 {major}.{minor}，项目至少需要 Python 3.9。")
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print("原因: requirement.txt 中的 Flask 3.x、pandas 2.x 等依赖不支持 Python 3.6。")
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raise SystemExit(1)
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print(f"Python 版本检查通过: {major}.{minor}")
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PY
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if [[ ! -f "requirement.txt" ]]; then
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echo "错误: 未找到 requirement.txt。"
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exit 1
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fi
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echo "检查关键依赖 ..."
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if ! "${PYTHON_BIN}" - <<'PY'
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import importlib.util
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modules = ("flask", "flask_cors", "pymysql", "werkzeug")
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missing = [name for name in modules if importlib.util.find_spec(name) is None]
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if missing:
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print("缺少依赖: " + ", ".join(missing))
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raise SystemExit(1)
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print("关键依赖已安装。")
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PY
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then
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echo "开始安装 requirement.txt ..."
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"${PYTHON_BIN}" -m pip install --upgrade pip
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"${PYTHON_BIN}" -m pip install -r requirement.txt
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fi
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if [[ -f "${PID_FILE}" ]]; then
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OLD_PID="$(cat "${PID_FILE}" 2>/dev/null || true)"
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if [[ -n "${OLD_PID}" ]] && kill -0 "${OLD_PID}" 2>/dev/null; then
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echo "错误: 检测到服务已在运行，PID=${OLD_PID}"
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exit 1
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fi
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rm -f "${PID_FILE}"
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fi
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echo "启动 Flask 服务 ${HOST}:${PORT} ..."
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nohup "${PYTHON_BIN}" "${APP_MODULE}" >> "${LOG_FILE}" 2>&1 &
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NEW_PID=$!
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echo "${NEW_PID}" > "${PID_FILE}"
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sleep 2
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if kill -0 "${NEW_PID}" 2>/dev/null; then
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echo "启动成功，PID=${NEW_PID}"
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echo "日志文件: ${SCRIPT_DIR}/${LOG_FILE}"
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else
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echo "错误: 服务启动失败，请检查日志 ${SCRIPT_DIR}/${LOG_FILE}"
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exit 1
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fi
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