boost.helpers.inc in Boost 5
Various helper functions for the Boost module, to make life a bit easier.
File
boost.helpers.incView source
<?php
/**
* @file
* Various helper functions for the Boost module, to make life a bit easier.
*/
//////////////////////////////////////////////////////////////////////////////
/**
* Recursive version of mkdir(), compatible with PHP4.
*/
function _boost_mkdir_p($pathname, $mode = 0775, $recursive = TRUE) {
if (is_dir($pathname)) {
return TRUE;
}
if ($recursive && !_boost_mkdir_p(dirname($pathname), $mode)) {
return FALSE;
}
if ($result = @mkdir($pathname, $mode)) {
@chmod($pathname, $mode);
}
return $result;
}
/**
* Recursive version of rmdir(); use with extreme caution.
*
* @param $dirname
* the top-level directory that will be recursively removed
* @param $callback
* optional predicate function for determining if a file should be removed
*/
function _boost_rmdir_rf($dirname, $callback = NULL) {
$empty = TRUE;
// Start with an optimistic mindset
foreach (glob($dirname . '/*', GLOB_NOSORT) as $file) {
if (is_dir($file)) {
if (!_boost_rmdir_rf($file, $callback)) {
$empty = FALSE;
}
}
else {
if (is_file($file)) {
if (function_exists($callback)) {
if (!$callback($file)) {
$empty = FALSE;
continue;
}
}
@unlink($file);
}
else {
$empty = FALSE;
// it's probably a symbolic link
}
}
}
// The reason for this elaborate safeguard is that Drupal will log even
// warnings that should have been suppressed with the @ sign. Otherwise,
// we'd just rely on the FALSE return value from rmdir().
return $empty && @rmdir($dirname);
}
/**
* Creates a symbolic link using a computed relative path where possible.
*/
function _boost_symlink($target, $link) {
if (!file_exists($target) || !file_exists(dirname($link))) {
return FALSE;
}
$target = explode('/', $target);
$link = explode('/', $link);
// Only bother creating a relative link if the paths are in the same
// top-level directory; otherwise just symlink to the absolute path.
if ($target[1] == $link[1]) {
// Remove the common path prefix
$cwd = array();
while (count($target) > 0 && count($link) > 0 && reset($target) == reset($link)) {
$cwd[] = array_shift($target);
array_shift($link);
}
// Compute the required relative path
if (count($link) > 1) {
$target = array_merge(array_fill(0, count($link) - 1, '..'), $target);
}
$link = array_merge($cwd, $link);
}
return symlink(implode('/', $target), implode('/', $link));
}
//////////////////////////////////////////////////////////////////////////////
// PHP4 COMPATIBILITY
if (!function_exists('file_put_contents')) {
function file_put_contents($filename, $data) {
if ($fp = fopen($filename, 'wb')) {
fwrite($fp, $data);
fclose($fp);
return filesize($filename);
}
return FALSE;
}
}
//////////////////////////////////////////////////////////////////////////////
Functions
Name | Description |
---|---|
_boost_mkdir_p | Recursive version of mkdir(), compatible with PHP4. |
_boost_rmdir_rf | Recursive version of rmdir(); use with extreme caution. |
_boost_symlink | Creates a symbolic link using a computed relative path where possible. |