Create an update script and add an update command to the main process.

index.js

@@ -3,6 +3,7 @@
 const restify = require('restify')
 const log = require('./lib/log')('main')
 const fs = require('fs')
+const { exec } = require('child_process')
 
 const BLE = require('./lib/ble')
 const intval = require('./lib/intval')
@@ -519,6 +520,10 @@ function seq () {
 	}
 }
 
+function update (req, res, next) {
+	exec('sh ./scripts/update.sh')
+}
+
 function index (req, res, next) {
 	fs.readFile(INDEXPATH, 'utf8', (err, data) => {
 		if (err) {

scripts/update.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+cd /home/pi/intval3
+
+sudo -u pi -i<< EOF
+	git pull
+EOF
+
+sudo pm2 restart process.json