htcp-purge/maintenance/purge.js

Varnish caches purging method

'use strict';
/* eslint no-console: ["error", { allow: ["log"] }] */

const HTCPPurger = require( '../index.js' );

function validateArgs() {
	if ( process.argv.length !== 4 ) {
		return false;
	}
	const varnishIP = process.argv[ 2 ];
	return /(?:\d{1,3}\.){3}\d{1,3}:\d{4}/.test( varnishIP );

}
if ( !validateArgs() ) {
	console.log( 'Usage: node purge.js <varnish ip:port> <resource uri>' );
	process.exit( 1 );
}

const varnishIP = process.argv[ 2 ];
const purgeURL = process.argv[ 3 ];
const hostPortMatch = varnishIP.match( /((?:\d{1,3}\.){3}\d{1,3}):(\d{4})/ );
const varnishHostIp = hostPortMatch[ 1 ];
const varnishPort = parseInt( hostPortMatch[ 2 ] );

const purger = new HTCPPurger( {
	log: console.log.bind( console ),
	routes: [ {
		host: varnishHostIp,
		port: varnishPort
	} ]
} );

console.log( `Sending a datagram to ${varnishHostIp}:${varnishPort} for uri ${purgeURL}` );
purger.bind().then( () => purger.purge( [ purgeURL ] ) ).delay( 100 ).then( () => purger.close() );