How to make a 'npm run build' from a symfony project - php

Question

I currently have a symfony project that uses Foundation for Emails to create responsive emails.
The Foundation framework uses the command 'npm run build' to tranform files. I tried doing a service parse my content using the Process class but I must be using it wrong as it does not execute 'npm run build'. Here is my faulty code :
<?php
/**
* Created by PhpStorm.
* User: jeremie
* Date: 28/12/17
* Time: 16:59
*/
namespace Acme\Open4XMLParserBundle\Services;
use Symfony\Component\Filesystem\Filesystem;
use Symfony\Component\Process\Process;
/**
* #todo : code this
*/
class FoundationParser
{
protected $foundationLocation;
protected $process;
/**
* FoundationParser constructor.
* #param $foundationLocation
*/
public function __construct($foundationLocation)
{
$this->foundationLocation = $foundationLocation;
$this->process = new Process('npm run build', $this->foundationLocation);
}
/**
* Run npm run build if needed
*/
public function initFoundation()
{
//make sure that 'npm run build' is running and execute it if not
if (!$this->process->isRunning()) {
$this->process->start();
}
}
public function saveFoundationContent($foundationContent, $filename)
{
//save the file in foundation/src/pages
$fileSystem = new Filesystem();
$fileLocation = $this->foundationLocation . '/src/pages/' . $filename;
if (!$fileSystem->exists($fileLocation)) {
$fileSystem->dumpFile($fileLocation, $foundationContent);
$fileSystem->chmod($fileLocation, 0664);
}
}
public function retrieveValidHtml($fileName)
{
$fileLocation = $this->foundationLocation . '/dist/' . $fileName;
while (true) {
try {
$result = file_get_contents($fileLocation);
if ($result !== false){
return $result;
}
} catch (\Exception $e) {
}
}
}
}
And I use my service like this :
$foundationParser = $this->container->get('open4xmlparser.foundationparser');
$foundationParser->initFoundation();
$foundationParser->saveFoundationContent($foundationContent, 'test.html');
$response = new Response($foundationParser->retrieveValidHtml('test.html'));
$response->headers->set('Content-Type', 'text/html');
$response->send();
And it tells me that 'test.html' does not exist. Any idea on how to do what I want?

Answer 1

What I finally decided to do is a Symfony command that launch my program in an infinite loop(it is never supposed to stop). Instead of using a service I executed 'npm run build' directly in the while loop.
protected function execute(InputInterface $input, OutputInterface $output)
{
$output->writeln([
'',
'Running program',
'===============',
''
]);
$runBuild = new Process('npm run build', $this->getContainer()->getParameter('foundation_location'));
while (true) {
if (!$runBuild->isRunning()){
$output->writeln([
'',
'Executing npm run build',
''
]);
$runBuild->start();
}
}
}

Answer 2

You seem to have different paths in the saveFoundationContent and retrieveValidHtml for the target file.
// saveFoundationContent()
$fileLocation = $this->foundationLocation . '/src/pages/' . $filename;
// retrieveValidHtml()
$fileLocation = $this->foundationLocation . '/dist/' . $fileName;
Obviously, retrieveValidHtml() cannot find the file in the location.
Tip: Store the subdirectory path as a class variable (or constant):
class FoundationParser
{
private $subdir = "/dist/"; // or "/src/pages/";
…
public function retrieveValidHtml($fileName)
{
$fileLocation = sprintf("%s%s%s", $this->foundationLocation, $this->subdir, $fileName);
…
}
}