shanxia/bx/bx-backend/start_prod.sh

#!/usr/bin/env bash
# Allow users to run `sh start_prod.sh` by auto-switching to bash.
if [ -z "${BASH_VERSION:-}" ]; then
    exec bash "$0" "$@"
fi

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
cd "$SCRIPT_DIR"

# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[0;33m'
NC='\033[0m'

log()  { echo -e "${GREEN}[bx-backend-prod]${NC} $*"; }
warn() { echo -e "${YELLOW}[bx-backend-prod]${NC} $*"; }
err()  { echo -e "${RED}[bx-backend-prod]${NC} $*" >&2; }

# ---- Virtual Env ----
if [ -d ".venv" ]; then
    log "Activating .venv"
    source .venv/bin/activate
elif [ -d "venv" ]; then
    log "Activating venv"
    source venv/bin/activate
else
    warn "No virtual environment found, using system Python"
fi

# Resolve python command (prefer python, fallback to python3)
PYTHON_BIN="$(command -v python 2>/dev/null || true)"
if [ -z "$PYTHON_BIN" ]; then
    PYTHON_BIN="$(command -v python3 2>/dev/null || true)"
fi
if [ -z "$PYTHON_BIN" ]; then
    err "Neither 'python' nor 'python3' command found. Install Python 3.11+ or activate a venv."
    exit 1
fi

PYTHON_MAJOR="$("$PYTHON_BIN" -c 'import sys; print(sys.version_info.major)' 2>/dev/null || echo 0)"
PYTHON_MINOR="$("$PYTHON_BIN" -c 'import sys; print(sys.version_info.minor)' 2>/dev/null || echo 0)"
if [ "$PYTHON_MAJOR" -lt 3 ] || { [ "$PYTHON_MAJOR" -eq 3 ] && [ "$PYTHON_MINOR" -lt 11 ]; }; then
    err "Python 3.11+ is required, but got: $("$PYTHON_BIN" --version 2>&1)"
    err "Please make sure 'python' or 'python3' points to a compatible version."
    exit 1
fi
PYTHON="$PYTHON_BIN"
log "Using Python: $PYTHON ($($PYTHON --version 2>&1))"

# ---- Dependency Check ----
if ! "$PYTHON" -c "import uvicorn" >/dev/null 2>&1; then
    err "Python package 'uvicorn' is not installed in current environment."
    err "Please install backend dependencies first:"
    err "  $PYTHON -m pip install -e ."
    err "Or (with dev dependencies):"
    err "  $PYTHON -m pip install -e '.[dev]'"
    exit 1
fi

# ---- Load .env.production ----
ENV_FILE=".env.production"
if [ ! -f "$ENV_FILE" ]; then
    err "Missing ${ENV_FILE}. Please create it before starting production."
    exit 1
fi

log "Loading ${ENV_FILE}"
set -a
while IFS='=' read -r key value; do
    [[ -z "$key" || "$key" =~ ^# ]] && continue
    value="${value%\"}"
    value="${value#\"}"
    value="${value%\'}"
    value="${value#\'}"
    export "$key=$value"
done < "$ENV_FILE"
set +a

HOST="${APP_HOST:-0.0.0.0}"
PORT="${APP_PORT:-8011}"

if [ "${DEBUG:-false}" = "true" ]; then
    warn "DEBUG=true in ${ENV_FILE}; production startup will ignore reload and run in normal mode."
fi

log "Starting 报销系统后端服务(生产) on ${HOST}:${PORT}"

# ---- Start Server (production mode, no reload) ----
$PYTHON -m uvicorn app.main:app --host "$HOST" --port "$PORT"