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james-tnjames-tn
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Merge pull request #88 from microsoft/james-dev
update bash script
2 parents 283e3aa + 916a511 commit 28ad6d7

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‎voice_agent/app/start.sh

Lines changed: 79 additions & 49 deletions
Original file line numberDiff line numberDiff line change
@@ -1,61 +1,91 @@
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#!/bin/sh
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# This script sets up and starts both the backend and the frontend for local development.
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# The backend is run with a Python virtual environment and the frontend uses Vite’s dev server.
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#!/usr/bin/env bash
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#
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# dev.sh – start backend (FastAPI) and frontend (Vite) in watch mode
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# while taking care of Python venv / npm install, plus
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# graceful shutdown on Ctrl-C.
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set -euo pipefail
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###############################################################################
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# Helper functions
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###############################################################################
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die () { echo "ERROR: $*" >&2; exit 1; }
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cleanup () {
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echo # blank line
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echo "Stopping services…"
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[[ -n "${backend_pid:-}" ]] && kill "$backend_pid" 2>/dev/null || true
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[[ -n "${frontend_pid:-}" ]] && kill "$frontend_pid" 2>/dev/null || true
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exit 0
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}
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trap cleanup INT TERM
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# --------------------------- Start the Backend Service ---------------------------
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echo ""
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###############################################################################
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# Backend
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###############################################################################
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echo
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echo "Setting up the Python virtual environment for the backend..."
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cd backend || { echo "backend folder not found."; exit 1; }
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[[ -d backend ]] || die "backend folder not found."
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pushd backend > /dev/null
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# Create virtual environment if it doesn't exist
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if [ ! -d ".venv" ]; then
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python3 -m venv .venv
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# ------------------------------------------------------------------
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# Create / upgrade the virtual-env
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# ------------------------------------------------------------------
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if [[ ! -d .venv ]]; then
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# --upgrade-deps guarantees fresh pip / setuptools / wheel
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python -m venv --upgrade-deps .venv
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else
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# env exists – still make sure the essentials are up to date
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.venv/bin/python -m pip install --upgrade pip setuptools wheel packaging
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fi
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echo ""
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echo "Installing backend Python packages..."
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./.venv/bin/python -m pip install -r requirements.txt || { echo "Backend dependency installation failed."; exit 1; }
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echo ""
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echo "Starting backend service (listening on port 8765)..."
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# Use --reload for auto-restarting during development
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./.venv/bin/python app.py --reload &
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BACKEND_PID=$!
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cd ..
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# --------------------------- Start the Frontend Service ---------------------------
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echo ""
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echo "Installing frontend npm packages..."
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cd frontend || { echo "frontend folder not found."; exit 1; }
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npm install || { echo "Frontend npm installation failed."; exit 1; }
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echo ""
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echo "Building frontend application..."
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npm run build || { echo "Frontend build failed."; exit 1; }
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# Note:
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# • The .env file for the frontend should be placed in the frontend directory (i.e., ./frontend/.env)
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# • This file can contain environment variables such as BACKEND_WS_URL that Vite will load.
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#
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# Example .env file:
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export VITE_BACKEND_WS_URL="ws://localhost:8765"
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echo
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echo "Installing backend Python packages…"
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venv_py=".venv/bin/python"
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[[ -x "$venv_py" ]] || { popd >/dev/null; die "Could not find the virtual-env Python executable."; }
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"$venv_py" -m pip install -r requirements.txt || { popd >/dev/null; die "Backend dependency installation failed."; }
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echo ""
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echo "Starting frontend dev server..."
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node server.cjs &
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FRONTEND_PID=$!
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echo "Frontend proxy started at: http://localhost:3000"
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cd ..
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echo
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echo "Starting backend service (listening on port 8765)…"
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# Launch FastAPI (or whatever app.py holds) in the background
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"$venv_py" app.py --reload &
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backend_pid=$!
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popd > /dev/null
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###############################################################################
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# Frontend
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###############################################################################
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echo
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echo "Installing frontend npm packages…"
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[[ -d frontend ]] || { kill "$backend_pid"; die "frontend folder not found."; }
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pushd frontend > /dev/null
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npm install || { popd >/dev/null; kill "$backend_pid"; die "Frontend npm installation failed."; }
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echo
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echo "Starting frontend dev server…"
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export VITE_BACKEND_WS_URL="ws://localhost:8765"
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npm run dev &
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frontend_pid=$!
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# --------------------------- Clean-up on Exit ---------------------------
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trap "echo 'Stopping services...'; kill $BACKEND_PID; kill $FRONTEND_PID; exit 0" INT TERM
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popd > /dev/null
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echo ""
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###############################################################################
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# Wait forever until user presses Ctrl-C
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###############################################################################
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echo
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echo "Both backend and frontend services are running."
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echo "Press Ctrl+C to stop."
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wait
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# Keep script alive
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while true; do
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sleep 1
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done

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