function composer_manager_relative_dir in Composer Manager 6

Same name and namespace in other branches

1. 6.2 composer_manager.writer.inc \composer_manager_relative_dir()
2. 7.2 composer_manager.writer.inc \composer_manager_relative_dir()
3. 7 composer_manager.writer.inc \composer_manager_relative_dir()

Gets the path of the "to" directory relative to the "from" directory.

Parameters

array $dir_to: The absolute path of the directory that the relative path refers to.

array $dir_from: The absolute path of the directory from which the relative path is being calculated.

Return value

string

2 calls to composer_manager_relative_dir()

composer_manager_relative_autoload_path in ./composer_manager.writer.inc

Returns the path for the autoloaded directory or class relative to the directory containing the composer.json file.

composer_manager_relative_vendor_dir in ./composer_manager.writer.inc

Returns the vendor directory relative to the composer file directory.

File

./composer_manager.writer.inc, line 302

Functions related to the creation of the consolidated composer.json file.

Code

function composer_manager_relative_dir($dir_to, $dir_from) {
  $dirs_to = explode('/', ltrim($dir_to, '/'));
  $dirs_from = explode('/', ltrim($dir_from, '/'));

  // Strip the matching directories so that both arrays are relative to a common
  // position. The count of the $dirs_from array tells us how many levels up we
  // need to traverse from the directory containing the composer.json file, and
  // $dirs_to is relative to the common position.
  foreach ($dirs_to as $pos => $dir) {
    if (!isset($dirs_from[$pos]) || $dirs_to[$pos] != $dirs_from[$pos]) {
      break;
    }
    unset($dirs_to[$pos], $dirs_from[$pos]);
  }
  $path = str_repeat('../', count($dirs_from)) . join('/', $dirs_to);
  if (PHP_OS == 'WINNT') {
    $path = preg_replace('%..\\/([a-zA-Z])%i', '${1}', $path, 1);
  }
  return $path;
}