nodejs项目热更新 github webhooks

当本地有代码通过git上传后，服务器收到github代码变更的通知，然后调用脚本拉取(git pull)最新的代码，最后重启程序(如：pm2 restart myproject)。所以只要通过git push完成后部署的程序就会自动热更新。

在github中对项目进行设置

• 打开项目，如：nodeblog
• 点击Settings->Webhooks->Add webhook

Palyload URL: http://123.57.244.171:3333/nodeblog
Content type: application/json
Secret: 自定义（如：123456）
选Just the push event就可以了

• 点击Update webhook

接收github变更通知

nodejs服务代码

var http = require('http')
var createHandler = require('github-webhook-handler')
var handler = createHandler({ path: '/nodeblog', secret: '123456' })

function RunCmd(cmd, args, cb) {
  var spawn = require('child_process').spawn;
  var child = spawn(cmd, args);
  var result = '';
  child.stdout.on('data', function(data) {
    result += data.toString();
  });
  child.stdout.on('end', function() {
    cb(result)
  });
}

http.createServer(function (req, res) {
  handler(req, res, function (err) {
    res.statusCode = 404;
    res.end('no such location');
  })
}).listen(3333)

handler.on('error', function (err) {
  console.error('Error:', err.message);
})

handler.on('push', function (event) {
  console.log('Received a push event for %s to %s',
    event.payload.repository.name,
    event.payload.ref);
  var shpath = './' + event.payload.repository.name + '.sh';
  RunCmd('sh', [shpath], function(result) {
      console.log(result);
  })
})

handler.on('issues', function (event) {
  console.log('Received an issue event for %s action=%s: #%d %s',
    event.payload.repository.name,
    event.payload.action,
    event.payload.issue.number,
    event.payload.issue.title);
})

脚本代码

PRO_DIR="/root/nodeblog"
echo "start--------------------"
cd $PRO_DIR
echo "pull git code"
git pull
echo "restart nodeblog"
pm2 restart nodeblog
echo "finished-----------------"

安装组件：npm install github-webhook-handler —save
注意监听端口，项目名，path以及secret要与github Settings中的设置一致