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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Finder;
/**
* Finder allows to build rules to find files and directories.
*
* It is a thin wrapper around several specialized iterator classes.
*
* All rules may be invoked several times.
*
* All methods return the current Finder object to allow easy chaining:
*
* $finder = Finder::create()->files()->name('*.php')->in(__DIR__);
*
* @author Fabien Potencier <fabien@symfony.com>
*
* @api
*/
class Finder implements \IteratorAggregate
{
const IGNORE_VCS_FILES = 1;
const IGNORE_DOT_FILES = 2;
private $mode = 0;
private $names = array();
private $notNames = array();
private $exclude = array();
private $filters = array();
private $depths = array();
private $sizes = array();
private $followLinks = false;
private $sort = false;
private $ignore = 0;
private $dirs = array();
private $dates = array();
private $iterators = array();
static private $vcsPatterns = array('.svn', '_svn', 'CVS', '_darcs', '.arch-params', '.monotone', '.bzr', '.git', '.hg');
/**
* Constructor.
*/
public function __construct()
{
$this->ignore = static::IGNORE_VCS_FILES | static::IGNORE_DOT_FILES;
}
/**
* Creates a new Finder.
*
* @return Finder A new Finder instance
*
* @api
*/
static public function create()
{
return new self();
}
/**
* Restricts the matching to directories only.
*
* @return Finder The current Finder instance
*
* @api
*/
public function directories()
{
$this->mode = Iterator\FileTypeFilterIterator::ONLY_DIRECTORIES;
return $this;
}
/**
* Restricts the matching to files only.
*
* @return Finder The current Finder instance
*
* @api
*/
public function files()
{
$this->mode = Iterator\FileTypeFilterIterator::ONLY_FILES;
return $this;
}
/**
* Adds tests for the directory depth.
*
* Usage:
*
* $finder->depth('> 1') // the Finder will start matching at level 1.
* $finder->depth('< 3') // the Finder will descend at most 3 levels of directories below the starting point.
*
* @param int $level The depth level expression
*
* @return Finder The current Finder instance
*
* @see Symfony\Component\Finder\Iterator\DepthRangeFilterIterator
* @see Symfony\Component\Finder\Comparator\NumberComparator
*
* @api
*/
public function depth($level)
{
$this->depths[] = new Comparator\NumberComparator($level);
return $this;
}
/**
* Adds tests for file dates (last modified).
*
* The date must be something that strtotime() is able to parse:
*
* $finder->date('since yesterday');
* $finder->date('until 2 days ago');
* $finder->date('> now - 2 hours');
* $finder->date('>= 2005-10-15');
*
* @param string $date A date rage string
*
* @return Finder The current Finder instance
*
* @see strtotime
* @see Symfony\Component\Finder\Iterator\DateRangeFilterIterator
* @see Symfony\Component\Finder\Comparator\DateComparator
*
* @api
*/
public function date($date)
{
$this->dates[] = new Comparator\DateComparator($date);
return $this;
}
/**
* Adds rules that files must match.
*
* You can use patterns (delimited with / sign), globs or simple strings.
*
* $finder->name('*.php')
* $finder->name('/\.php$/') // same as above
* $finder->name('test.php')
*
* @param string $pattern A pattern (a regexp, a glob, or a string)
*
* @return Finder The current Finder instance
*
* @see Symfony\Component\Finder\Iterator\FilenameFilterIterator
*
* @api
*/
public function name($pattern)
{
$this->names[] = $pattern;
return $this;
}
/**
* Adds rules that files must not match.
*
* @param string $pattern A pattern (a regexp, a glob, or a string)
*
* @return Finder The current Finder instance
*
* @see Symfony\Component\Finder\Iterator\FilenameFilterIterator
*
* @api
*/
public function notName($pattern)
{
$this->notNames[] = $pattern;
return $this;
}
/**
* Adds tests for file sizes.
*
* $finder->size('> 10K');
* $finder->size('<= 1Ki');
* $finder->size(4);
*
* @param string $size A size range string
*
* @return Finder The current Finder instance
*
* @see Symfony\Component\Finder\Iterator\SizeRangeFilterIterator
* @see Symfony\Component\Finder\Comparator\NumberComparator
*
* @api
*/
public function size($size)
{
$this->sizes[] = new Comparator\NumberComparator($size);
return $this;
}
/**
* Excludes directories.
*
* @param string $dir A directory to exclude
*
* @return Finder The current Finder instance
*
* @see Symfony\Component\Finder\Iterator\ExcludeDirectoryFilterIterator
*
* @api
*/
public function exclude($dir)
{
$this->exclude[] = $dir;
return $this;
}
/**
* Excludes "hidden" directories and files (starting with a dot).
*
* @param Boolean $ignoreDotFiles Whether to exclude "hidden" files or not
*
* @return Finder The current Finder instance
*
* @see Symfony\Component\Finder\Iterator\ExcludeDirectoryFilterIterator
*
* @api
*/
public function ignoreDotFiles($ignoreDotFiles)
{
if ($ignoreDotFiles) {
$this->ignore = $this->ignore | static::IGNORE_DOT_FILES;
} else {
$this->ignore = $this->ignore ^ static::IGNORE_DOT_FILES;
}
return $this;
}
/**
* Forces the finder to ignore version control directories.
*
* @param Boolean $ignoreVCS Whether to exclude VCS files or not
*
* @return Finder The current Finder instance
*
* @see Symfony\Component\Finder\Iterator\ExcludeDirectoryFilterIterator
*
* @api
*/
public function ignoreVCS($ignoreVCS)
{
if ($ignoreVCS) {
$this->ignore = $this->ignore | static::IGNORE_VCS_FILES;
} else {
$this->ignore = $this->ignore ^ static::IGNORE_VCS_FILES;
}
return $this;
}
static public function addVCSPattern($pattern)
{
static::$vcsPatterns[] = $pattern;
}
/**
* Sorts files and directories by an anonymous function.
*
* The anonymous function receives two \SplFileInfo instances to compare.
*
* This can be slow as all the matching files and directories must be retrieved for comparison.
*
* @param Closure $closure An anonymous function
*
* @return Finder The current Finder instance
*
* @see Symfony\Component\Finder\Iterator\SortableIterator
*
* @api
*/
public function sort(\Closure $closure)
{
$this->sort = $closure;
return $this;
}
/**
* Sorts files and directories by name.
*
* This can be slow as all the matching files and directories must be retrieved for comparison.
*
* @return Finder The current Finder instance
*
* @see Symfony\Component\Finder\Iterator\SortableIterator
*
* @api
*/
public function sortByName()
{
$this->sort = Iterator\SortableIterator::SORT_BY_NAME;
return $this;
}
/**
* Sorts files and directories by type (directories before files), then by name.
*
* This can be slow as all the matching files and directories must be retrieved for comparison.
*
* @return Finder The current Finder instance
*
* @see Symfony\Component\Finder\Iterator\SortableIterator
*
* @api
*/
public function sortByType()
{
$this->sort = Iterator\SortableIterator::SORT_BY_TYPE;
return $this;
}
/**
* Filters the iterator with an anonymous function.
*
* The anonymous function receives a \SplFileInfo and must return false
* to remove files.
*
* @param Closure $closure An anonymous function
*
* @return Finder The current Finder instance
*
* @see Symfony\Component\Finder\Iterator\CustomFilterIterator
*
* @api
*/
public function filter(\Closure $closure)
{
$this->filters[] = $closure;
return $this;
}
/**
* Forces the following of symlinks.
*
* @return Finder The current Finder instance
*
* @api
*/
public function followLinks()
{
$this->followLinks = true;
return $this;
}
/**
* Searches files and directories which match defined rules.
*
* @param string|array $dirs A directory path or an array of directories
*
* @return Finder The current Finder instance
*
* @throws \InvalidArgumentException if one of the directory does not exist
*
* @api
*/
public function in($dirs)
{
$dirs = (array) $dirs;
foreach ($dirs as $dir) {
if (!is_dir($dir)) {
throw new \InvalidArgumentException(sprintf('The "%s" directory does not exist.', $dir));
}
}
$this->dirs = array_merge($this->dirs, $dirs);
return $this;
}
/**
* Returns an Iterator for the current Finder configuration.
*
* This method implements the IteratorAggregate interface.
*
* @return \Iterator An iterator
*
* @throws \LogicException if the in() method has not been called
*/
public function getIterator()
{
if (0 === count($this->dirs)) {
throw new \LogicException('You must call the in() method before iterating over a Finder.');
}
if (1 === count($this->dirs) && 0 === count($this->iterators)) {
return $this->searchInDirectory($this->dirs[0]);
}
$iterator = new \AppendIterator();
foreach ($this->dirs as $dir) {
$iterator->append($this->searchInDirectory($dir));
}
foreach ($this->iterators as $it) {
$iterator->append($it);
}
return $iterator;
}
/**
* Appends an existing set of files/directories to the finder.
*
* The set can be another Finder, an Iterator, an IteratorAggregate, or even a plain array.
*
* @param mixed $iterator
*/
public function append($iterator)
{
if ($iterator instanceof \IteratorAggregate) {
$this->iterators[] = $iterator->getIterator();
} elseif ($iterator instanceof \Iterator) {
$this->iterators[] = $iterator;
} elseif ($iterator instanceof \Traversable || is_array($iterator)) {
$it = new \ArrayIterator();
foreach ($iterator as $file) {
$it->append($file instanceof \SplFileInfo ? $file : new \SplFileInfo($file));
}
$this->iterators[] = $it;
} else {
throw new \InvalidArgumentException('Finder::append() method wrong argument type.');
}
}
private function searchInDirectory($dir)
{
$flags = \RecursiveDirectoryIterator::SKIP_DOTS;
if ($this->followLinks) {
$flags |= \RecursiveDirectoryIterator::FOLLOW_SYMLINKS;
}
$iterator = new \RecursiveIteratorIterator(
new Iterator\RecursiveDirectoryIterator($dir, $flags),
\RecursiveIteratorIterator::SELF_FIRST
);
if ($this->depths) {
$iterator = new Iterator\DepthRangeFilterIterator($iterator, $this->depths);
}
if ($this->mode) {
$iterator = new Iterator\FileTypeFilterIterator($iterator, $this->mode);
}
if (static::IGNORE_VCS_FILES === (static::IGNORE_VCS_FILES & $this->ignore)) {
$this->exclude = array_merge($this->exclude, static::$vcsPatterns);
}
if (static::IGNORE_DOT_FILES === (static::IGNORE_DOT_FILES & $this->ignore)) {
$this->exclude[] = '\..+';
}
if ($this->exclude) {
$iterator = new Iterator\ExcludeDirectoryFilterIterator($iterator, $this->exclude);
}
if ($this->names || $this->notNames) {
$iterator = new Iterator\FilenameFilterIterator($iterator, $this->names, $this->notNames);
}
if ($this->sizes) {
$iterator = new Iterator\SizeRangeFilterIterator($iterator, $this->sizes);
}
if ($this->dates) {
$iterator = new Iterator\DateRangeFilterIterator($iterator, $this->dates);
}
if ($this->filters) {
$iterator = new Iterator\CustomFilterIterator($iterator, $this->filters);
}
if ($this->sort) {
$iteratorAggregate = new Iterator\SortableIterator($iterator, $this->sort);
$iterator = $iteratorAggregate->getIterator();
}
return $iterator;
}
}
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