isAbsolute() public static méthode

Inspired from Symfony Filesystem component.
public static isAbsolute ( string $file ) : boolean
$file string
Résultat boolean
 public function test_it_correctly_differentiates_absolute_paths_from_relative_ones()
 {
     static::assertTrue(FileSystemHelper::isAbsolute('/var/lib'));
     static::assertTrue(FileSystemHelper::isAbsolute('c:\\\\var\\lib'));
     static::assertTrue(FileSystemHelper::isAbsolute('\\var\\lib'));
     static::assertFalse(FileSystemHelper::isAbsolute('var/lib'));
     static::assertFalse(FileSystemHelper::isAbsolute('../var/lib'));
     static::assertFalse(FileSystemHelper::isAbsolute(''));
 }
 /**
  * @param array  $extra
  * @param string $baseDir
  *
  * @return Config
  */
 public function build(array $extra, $baseDir)
 {
     $this->reset();
     $commitAuto = 'never';
     $commitBinFile = null;
     $commitMessage = 'Update dependencies';
     $gitlabHosts = [];
     if (array_key_exists('commit-auto', $extra)) {
         if (in_array($extra['commit-auto'], self::$validCommitAutoValues, true)) {
             $commitAuto = $extra['commit-auto'];
         } else {
             $this->warnings[] = self::createWarningFromInvalidValue($extra, 'commit-auto', $commitAuto, sprintf('Valid options are "%s".', implode('", "', self::$validCommitAutoValues)));
         }
     }
     if (array_key_exists('commit-bin-file', $extra)) {
         if ($commitAuto === 'never') {
             $this->warnings[] = '"commit-bin-file" is specified but "commit-auto" option is set to "never". Ignoring.';
         } else {
             $file = realpath(FileSystemHelper::isAbsolute($extra['commit-bin-file']) ? $extra['commit-bin-file'] : $baseDir . '/' . $extra['commit-bin-file']);
             if (!file_exists($file)) {
                 $this->warnings[] = 'The file pointed by the option "commit-bin-file" was not found. Ignoring.';
             } else {
                 $commitBinFile = $file;
             }
         }
     } else {
         if ($commitAuto !== 'never') {
             $this->warnings[] = sprintf('"commit-auto" is set to "%s" but "commit-bin-file" was not specified.', $commitAuto);
         }
     }
     if (array_key_exists('commit-message', $extra)) {
         if (strlen(trim($extra['commit-message'])) === 0) {
             $this->warnings[] = '"commit-message" is specified but empty. Ignoring and using default commit message.';
         } else {
             $commitMessage = $extra['commit-message'];
         }
     }
     if (array_key_exists('gitlab-hosts', $extra)) {
         if (!is_array($extra['gitlab-hosts'])) {
             $this->warnings[] = '"gitlab-hosts" is specified but should be an array. Ignoring.';
         } else {
             $gitlabHosts = (array) $extra['gitlab-hosts'];
         }
     }
     return new Config($commitAuto, $commitBinFile, $commitMessage, $gitlabHosts);
 }