<?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;
use Symfony\Component\Finder\Comparator\DateComparator;
use Symfony\Component\Finder\Comparator\NumberComparator;
use Symfony\Component\Finder\Iterator\CustomFilterIterator;
use Symfony\Component\Finder\Iterator\DateRangeFilterIterator;
use Symfony\Component\Finder\Iterator\DepthRangeFilterIterator;
use Symfony\Component\Finder\Iterator\ExcludeDirectoryFilterIterator;
use Symfony\Component\Finder\Iterator\FilecontentFilterIterator;
use Symfony\Component\Finder\Iterator\FilenameFilterIterator;
use Symfony\Component\Finder\Iterator\SizeRangeFilterIterator;
use Symfony\Component\Finder\Iterator\SortableIterator;
/**
* 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>
*/
class Finder implements \IteratorAggregate, \Countable
{
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();
private $contains = array();
private $notContains = array();
private $paths = array();
private $notPaths = array();
private $ignoreUnreadableDirs = false;
private static $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 static
*/
public static function create()
{
return new static();
}
/**
* Restricts the matching to directories only.
*
* @return $this
*/
public function directories()
{
$this->mode = Iterator\FileTypeFilterIterator::ONLY_DIRECTORIES;
return $this;
}
/**
* Restricts the matching to files only.
*
* @return $this
*/
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 string|int $level The depth level expression
*
* @return $this
*
* @see DepthRangeFilterIterator
* @see NumberComparator
*/
public function depth($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 range string
*
* @return $this
*
* @see strtotime
* @see DateRangeFilterIterator
* @see DateComparator
*/
public function date($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 $this
*
* @see FilenameFilterIterator
*/
public function name($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 $this
*
* @see FilenameFilterIterator
*/
public function notName($pattern)
{
$this->notNames[] = $pattern;
return $this;
}
/**
* Adds tests that file contents must match.
*
* Strings or PCRE patterns can be used:
*
* $finder->contains('Lorem ipsum')
* $finder->contains('/Lorem ipsum/i')
*
* @param string $pattern A pattern (string or regexp)
*
* @return $this
*
* @see FilecontentFilterIterator
*/
public function contains($pattern)
{
$this->contains[] = $pattern;
return $this;
}
/**
* Adds tests that file contents must not match.
*
* Strings or PCRE patterns can be used:
*
* $finder->notContains('Lorem ipsum')
* $finder->notContains('/Lorem ipsum/i')
*
* @param string $pattern A pattern (string or regexp)
*
* @return $this
*
* @see FilecontentFilterIterator
*/
public function notContains($pattern)
{
$this->notContains[] = $pattern;
return $this;
}
/**
* Adds rules that filenames must match.
*
* You can use patterns (delimited with / sign) or simple strings.
*
* $finder->path('some/special/dir')
* $finder->path('/some\/special\/dir/') // same as above
*
* Use only / as dirname separator.
*
* @param string $pattern A pattern (a regexp or a string)
*
* @return $this
*
* @see FilenameFilterIterator
*/
public function path($pattern)
{
$this->paths[] = $pattern;
return $this;
}
/**
* Adds rules that filenames must not match.
*
* You can use patterns (delimited with / sign) or simple strings.
*
* $finder->notPath('some/special/dir')
* $finder->notPath('/some\/special\/dir/') // same as above
*
* Use only / as dirname separator.
*
* @param string $pattern A pattern (a regexp or a string)
*
* @return $this
*
* @see FilenameFilterIterator
*/
public function notPath($pattern)
{
$this->notPaths[] = $pattern;
return $this;
}
/**
* Adds tests for file sizes.
*
* $finder->size('> 10K');
* $finder->size('<= 1Ki');
* $finder->size(4);
*
* @param string|int $size A size range string or an integer
*
* @return $this
*
* @see SizeRangeFilterIterator
* @see NumberComparator
*/
public function size($size)
{
$this->sizes[] = new Comparator\NumberComparator($size);
return $this;
}
/**
* Excludes directories.
*
* @param string|array $dirs A directory path or an array of directories
*
* @return $this
*
* @see ExcludeDirectoryFilterIterator
*/
public function exclude($dirs)
{
$this->exclude = array_merge($this->exclude, (array) $dirs);
return $this;
}
/**
* Excludes "hidden" directories and files (starting with a dot).
*
* @param bool $ignoreDotFiles Whether to exclude "hidden" files or not
*
* @return $this
*
* @see ExcludeDirectoryFilterIterator
*/
public function ignoreDotFiles($ignoreDotFiles)
{
if ($ignoreDotFiles) {
$this->ignore |= static::IGNORE_DOT_FILES;
} else {
$this->ignore &= ~static::IGNORE_DOT_FILES;
}
return $this;
}
/**
* Forces the finder to ignore version control directories.
*
* @param bool $ignoreVCS Whether to exclude VCS files or not
*
* @return $this
*
* @see ExcludeDirectoryFilterIterator
*/
public function ignoreVCS($ignoreVCS)
{
if ($ignoreVCS) {
$this->ignore |= static::IGNORE_VCS_FILES;
} else {
$this->ignore &= ~static::IGNORE_VCS_FILES;
}
return $this;
}
/**
* Adds VCS patterns.
*
* @see ignoreVCS()
*
* @param string|string[] $pattern VCS patterns to ignore
*/
public static function addVCSPattern($pattern)
{
foreach ((array) $pattern as $p) {
self::$vcsPatterns[] = $p;
}
self::$vcsPatterns = array_unique(self::$vcsPatterns);
}
/**
* 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 $this
*
* @see SortableIterator
*/
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 $this
*
* @see SortableIterator
*/
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 $this
*
* @see SortableIterator
*/
public function sortByType()
{
$this->sort = Iterator\SortableIterator::SORT_BY_TYPE;
return $this;
}
/**
* Sorts files and directories by the last accessed time.
*
* This is the time that the file was last accessed, read or written to.
*
* This can be slow as all the matching files and directories must be retrieved for comparison.
*
* @return $this
*
* @see SortableIterator
*/
public function sortByAccessedTime()
{
$this->sort = Iterator\SortableIterator::SORT_BY_ACCESSED_TIME;
return $this;
}
/**
* Sorts files and directories by the last inode changed time.
*
* This is the time that the inode information was last modified (permissions, owner, group or other metadata).
*
* On Windows, since inode is not available, changed time is actually the file creation time.
*
* This can be slow as all the matching files and directories must be retrieved for comparison.
*
* @return $this
*
* @see SortableIterator
*/
public function sortByChangedTime()
{
$this->sort = Iterator\SortableIterator::SORT_BY_CHANGED_TIME;
return $this;
}
/**
* Sorts files and directories by the last modified time.
*
* This is the last time the actual contents of the file were last modified.
*
* This can be slow as all the matching files and directories must be retrieved for comparison.
*
* @return $this
*
* @see SortableIterator
*/
public function sortByModifiedTime()
{
$this->sort = Iterator\SortableIterator::SORT_BY_MODIFIED_TIME;
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 $this
*
* @see CustomFilterIterator
*/
public function filter(\Closure $closure)
{
$this->filters[] = $closure;
return $this;
}
/**
* Forces the following of symlinks.
*
* @return $this
*/
public function followLinks()
{
$this->followLinks = true;
return $this;
}
/**
* Tells finder to ignore unreadable directories.
*
* By default, scanning unreadable directories content throws an AccessDeniedException.
*
* @param bool $ignore
*
* @return $this
*/
public function ignoreUnreadableDirs($ignore = true)
{
$this->ignoreUnreadableDirs = (bool) $ignore;
return $this;
}
/**
* Searches files and directories which match defined rules.
*
* @param string|array $dirs A directory path or an array of directories
*
* @return $this
*
* @throws \InvalidArgumentException if one of the directories does not exist
*/
public function in($dirs)
{
$resolvedDirs = array();
foreach ((array) $dirs as $dir) {
if (is_dir($dir)) {
$resolvedDirs[] = $dir;
} elseif ($glob = glob($dir, (defined('GLOB_BRACE') ? GLOB_BRACE : 0) | GLOB_ONLYDIR)) {
$resolvedDirs = array_merge($resolvedDirs, $glob);
} else {
throw new \InvalidArgumentException(sprintf('The "%s" directory does not exist.', $dir));
}
}
$this->dirs = array_merge($this->dirs, $resolvedDirs);
return $this;
}
/**
* Returns an Iterator for the current Finder configuration.
*
* This method implements the IteratorAggregate interface.
*
* @return \Iterator|SplFileInfo[] An iterator
*
* @throws \LogicException if the in() method has not been called
*/
public function getIterator()
{
if (0 === count($this->dirs) && 0 === count($this->iterators)) {
throw new \LogicException('You must call one of in() or append() methods before iterating over a Finder.');
}
if (1 === count($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
*
* @return $this
*
* @throws \InvalidArgumentException When the given argument is not iterable.
*/
public function append($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.');
}
return $this;
}
/**
* Counts all the results collected by the iterators.
*
* @return int
*/
public function count()
{
return iterator_count($this->getIterator());
}
/**
* @param $dir
*
* @return \Iterator
*/
private function searchInDirectory($dir)
{
if (static::IGNORE_VCS_FILES === (static::IGNORE_VCS_FILES & $this->ignore)) {
$this->exclude = array_merge($this->exclude, self::$vcsPatterns);
}
if (static::IGNORE_DOT_FILES === (static::IGNORE_DOT_FILES & $this->ignore)) {
$this->notPaths[] = '#(^|/)\..+(/|$)#';
}
$minDepth = 0;
$maxDepth = PHP_INT_MAX;
foreach ($this->depths as $comparator) {
switch ($comparator->getOperator()) {
case '>':
$minDepth = $comparator->getTarget() + 1;
break;
case '>=':
$minDepth = $comparator->getTarget();
break;
case '<':
$maxDepth = $comparator->getTarget() - 1;
break;
case '<=':
$maxDepth = $comparator->getTarget();
break;
default:
$minDepth = $maxDepth = $comparator->getTarget();
}
}
$flags = \RecursiveDirectoryIterator::SKIP_DOTS;
if ($this->followLinks) {
$flags |= \RecursiveDirectoryIterator::FOLLOW_SYMLINKS;
}
$iterator = new Iterator\RecursiveDirectoryIterator($dir, $flags, $this->ignoreUnreadableDirs);
if ($this->exclude) {
$iterator = new Iterator\ExcludeDirectoryFilterIterator($iterator, $this->exclude);
}
$iterator = new \RecursiveIteratorIterator($iterator, \RecursiveIteratorIterator::SELF_FIRST);
if ($minDepth > 0 || $maxDepth < PHP_INT_MAX) {
$iterator = new Iterator\DepthRangeFilterIterator($iterator, $minDepth, $maxDepth);
}
if ($this->mode) {
$iterator = new Iterator\FileTypeFilterIterator($iterator, $this->mode);
}
if ($this->names || $this->notNames) {
$iterator = new Iterator\FilenameFilterIterator($iterator, $this->names, $this->notNames);
}
if ($this->contains || $this->notContains) {
$iterator = new Iterator\FilecontentFilterIterator($iterator, $this->contains, $this->notContains);
}
if ($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->paths || $this->notPaths) {
$iterator = new Iterator\PathFilterIterator($iterator, $this->paths, $this->notPaths);
}
if ($this->sort) {
$iteratorAggregate = new Iterator\SortableIterator($iterator, $this->sort);
$iterator = $iteratorAggregate->getIterator();
}
return $iterator;
}
}
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