/**
* Backs up the paths.
*/
public function preserve()
{
foreach ($this->installPaths as $installPath) {
$installPathNormalized = $this->filesystem->normalizePath($installPath);
// Check if any path may be affected by modifying the install path.
$relevant_paths = array();
foreach ($this->preservePaths as $path) {
$normalizedPath = $this->filesystem->normalizePath($path);
if (static::file_exists($path) && strpos($normalizedPath, $installPathNormalized) === 0) {
$relevant_paths[] = $normalizedPath;
}
}
// If no paths need to be backed up, we simply proceed.
if (empty($relevant_paths)) {
continue;
}
$unique = $installPath . ' ' . time();
$cache_root = $this->filesystem->normalizePath($this->cacheDir . '/preserve-paths/' . sha1($unique));
$this->filesystem->ensureDirectoryExists($cache_root);
// Before we back paths up, we need to make sure, permissions are
// sufficient to that task.
$this->preparePathPermissions($relevant_paths);
foreach ($relevant_paths as $original) {
$backup_location = $cache_root . '/' . sha1($original);
$this->filesystem->rename($original, $backup_location);
$this->backups[$original] = $backup_location;
}
}
}
/**
* Remove the paths.
*/
public function remove()
{
foreach ($this->installPaths as $installPath) {
$installPathNormalized = $this->filesystem->normalizePath($installPath);
// Check if any path may be affected by modifying the install path.
$relevant_paths = array();
foreach ($this->removePaths as $path) {
$normalizedPath = $this->filesystem->normalizePath($path);
if (static::file_exists($path) && strpos($normalizedPath, $installPathNormalized) === 0) {
$relevant_paths[] = $normalizedPath;
}
}
foreach ($relevant_paths as $original) {
if (is_dir($original)) {
// Remove directory
$this->removeDirectoryRecursively($original);
} else {
// Remove file
unlink($original);
}
}
}
}
