Create a build script for tagging the current build

app/scripts/build.js

@@ -0,0 +1,31 @@
+'use strict';
+
+const fs = require('fs')
+const uuid = require('uuid').v4
+const PACKAGE = require('../package.json')
+
+const INDEX = './www/index.html'
+
+function patch (versionStr) {
+	const parts = versionStr.split('.');
+	const patch = parseInt(parts[2])
+	return `${parts[0]}.${parts[1]}.${patch+1}`
+}
+
+async function main () {
+	const build = uuid()
+	const short = build.split('-')[0]
+	const index = fs.readFileSync(INDEX, 'utf8')
+	const lines = index.split('\n')
+	let output
+
+	for (let i = 0; i < lines.length; i++) {
+		if (lines[i].indexOf('id="version"') !== -1) {
+			lines[i] = `	<div id="version">v${PACKAGE.version} build ${short}</div>`
+		}
+	}
+	output = lines.join('\n')
+	fs.writeFileSync(INDEX, output, 'utf8')
+}
+
+main()