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#!/usr/bin/env php<?php
 
 require_once dirname(__FILE__).'/../var/SymfonyRequirements.php';
 
 $lineSize = 70;
 $symfonyRequirements = new SymfonyRequirements();
 $iniPath = $symfonyRequirements->getPhpIniConfigPath();
 
 echo_title('Symfony Requirements Checker');
 
 echo '> PHP is using the following php.ini file:'.PHP_EOL;
 if ($iniPath) {
 echo_style('green', '  '.$iniPath);
 } else {
 echo_style('yellow', '  WARNING: No configuration file (php.ini) used by PHP!');
 }
 
 echo PHP_EOL.PHP_EOL;
 
 echo '> Checking Symfony requirements:'.PHP_EOL.'  ';
 
 $messages = array();
 foreach ($symfonyRequirements->getRequirements() as $req) {
 if ($helpText = get_error_message($req, $lineSize)) {
 echo_style('red', 'E');
 $messages['error'][] = $helpText;
 } else {
 echo_style('green', '.');
 }
 }
 
 $checkPassed = empty($messages['error']);
 
 foreach ($symfonyRequirements->getRecommendations() as $req) {
 if ($helpText = get_error_message($req, $lineSize)) {
 echo_style('yellow', 'W');
 $messages['warning'][] = $helpText;
 } else {
 echo_style('green', '.');
 }
 }
 
 if ($checkPassed) {
 echo_block('success', 'OK', 'Your system is ready to run Symfony projects');
 } else {
 echo_block('error', 'ERROR', 'Your system is not ready to run Symfony projects');
 
 echo_title('Fix the following mandatory requirements', 'red');
 
 foreach ($messages['error'] as $helpText) {
 echo ' * '.$helpText.PHP_EOL;
 }
 }
 
 if (!empty($messages['warning'])) {
 echo_title('Optional recommendations to improve your setup', 'yellow');
 
 foreach ($messages['warning'] as $helpText) {
 echo ' * '.$helpText.PHP_EOL;
 }
 }
 
 echo PHP_EOL;
 echo_style('title', 'Note');
 echo '  The command console could use a different php.ini file'.PHP_EOL;
 echo_style('title', '~~~~');
 echo '  than the one used with your web server. To be on the'.PHP_EOL;
 echo '      safe side, please check the requirements from your web'.PHP_EOL;
 echo '      server using the ';
 echo_style('yellow', 'web/config.php');
 echo ' script.'.PHP_EOL;
 echo PHP_EOL;
 
 exit($checkPassed ? 0 : 1);
 
 function get_error_message(Requirement $requirement, $lineSize)
 {
 if ($requirement->isFulfilled()) {
 return;
 }
 
 $errorMessage = wordwrap($requirement->getTestMessage(), $lineSize - 3, PHP_EOL.'   ').PHP_EOL;
 $errorMessage .= '   > '.wordwrap($requirement->getHelpText(), $lineSize - 5, PHP_EOL.'   > ').PHP_EOL;
 
 return $errorMessage;
 }
 
 function echo_title($title, $style = null)
 {
 $style = $style ?: 'title';
 
 echo PHP_EOL;
 echo_style($style, $title.PHP_EOL);
 echo_style($style, str_repeat('~', strlen($title)).PHP_EOL);
 echo PHP_EOL;
 }
 
 function echo_style($style, $message)
 {
 // ANSI color codes
 $styles = array(
 'reset' => "\033[0m",
 'red' => "\033[31m",
 'green' => "\033[32m",
 'yellow' => "\033[33m",
 'error' => "\033[37;41m",
 'success' => "\033[37;42m",
 'title' => "\033[34m",
 );
 $supports = has_color_support();
 
 echo($supports ? $styles[$style] : '').$message.($supports ? $styles['reset'] : '');
 }
 
 function echo_block($style, $title, $message)
 {
 $message = ' '.trim($message).' ';
 $width = strlen($message);
 
 echo PHP_EOL.PHP_EOL;
 
 echo_style($style, str_repeat(' ', $width));
 echo PHP_EOL;
 echo_style($style, str_pad(' ['.$title.']', $width, ' ', STR_PAD_RIGHT));
 echo PHP_EOL;
 echo_style($style, $message);
 echo PHP_EOL;
 echo_style($style, str_repeat(' ', $width));
 echo PHP_EOL;
 }
 
 function has_color_support()
 {
 static $support;
 
 if (null === $support) {
 if (DIRECTORY_SEPARATOR == '\\') {
 $support = false !== getenv('ANSICON') || 'ON' === getenv('ConEmuANSI');
 } else {
 $support = function_exists('posix_isatty') && @posix_isatty(STDOUT);
 }
 }
 
 return $support;
 }
 
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