Artisan command to update Vapor (AWS) secrets in bulk

UpdateSecrets.php

<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;

class UpdateSecrets extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'secrets:update {env=staging} {file=.secrets} {--deploy}';
    protected $tempFile = 'tempsecret';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Update AWS secrets in bulk via Vapor';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return int
     */
    public function handle()
    {
        $secretsFile = $this->argument('file');
        $env = $this->argument('env');

        $this->info("Processing file {$secretsFile}");

        $secretPairs = preg_split("/\r|\n/", file_get_contents($secretsFile), -1, PREG_SPLIT_NO_EMPTY);
        $progressBar = $this->output->createProgressBar(count($secretPairs));

        foreach($secretPairs as $sp) {
            $secretParts = explode('=', $sp);
            file_put_contents($this->tempFile, $secretParts[1] . PHP_EOL);
            exec("vapor secret {$env} --name={$secretParts[0]} --file={$this->tempFile}");
            $progressBar->advance();
        }

        unlink($this->tempFile);
        $progressBar->finish();

        $this->info("{$secretsFile} finished processing");

        if($this->option('deploy')) {
            $this->info("Deploying application {$this->argument('env')}");
            exec("vapor deploy {$env}");
        }

        return 0;
    }
}