326 lines
11 KiB
PHP
326 lines
11 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Finder\Adapter;
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@trigger_error('The '.__NAMESPACE__.'\AbstractFindAdapter class is deprecated since Symfony 2.8 and will be removed in 3.0. Use directly the Finder class instead.', E_USER_DEPRECATED);
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use Symfony\Component\Finder\Comparator\DateComparator;
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use Symfony\Component\Finder\Comparator\NumberComparator;
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use Symfony\Component\Finder\Exception\AccessDeniedException;
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use Symfony\Component\Finder\Expression\Expression;
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use Symfony\Component\Finder\Iterator;
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use Symfony\Component\Finder\Shell\Command;
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use Symfony\Component\Finder\Shell\Shell;
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/**
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* Shell engine implementation using GNU find command.
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*
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* @author Jean-François Simon <contact@jfsimon.fr>
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*
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* @deprecated since 2.8, to be removed in 3.0. Use Finder instead.
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*/
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abstract class AbstractFindAdapter extends AbstractAdapter
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{
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protected $shell;
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public function __construct()
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{
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$this->shell = new Shell();
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}
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/**
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* {@inheritdoc}
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*/
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public function searchInDirectory($dir)
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{
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// having "/../" in path make find fail
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$dir = realpath($dir);
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// searching directories containing or not containing strings leads to no result
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if (Iterator\FileTypeFilterIterator::ONLY_DIRECTORIES === $this->mode && ($this->contains || $this->notContains)) {
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return new Iterator\FilePathsIterator(array(), $dir);
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}
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$command = Command::create();
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$find = $this->buildFindCommand($command, $dir);
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if ($this->followLinks) {
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$find->add('-follow');
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}
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$find->add('-mindepth')->add($this->minDepth + 1);
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if (PHP_INT_MAX !== $this->maxDepth) {
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$find->add('-maxdepth')->add($this->maxDepth + 1);
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}
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if (Iterator\FileTypeFilterIterator::ONLY_DIRECTORIES === $this->mode) {
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$find->add('-type d');
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} elseif (Iterator\FileTypeFilterIterator::ONLY_FILES === $this->mode) {
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$find->add('-type f');
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}
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$this->buildNamesFiltering($find, $this->names);
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$this->buildNamesFiltering($find, $this->notNames, true);
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$this->buildPathsFiltering($find, $dir, $this->paths);
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$this->buildPathsFiltering($find, $dir, $this->notPaths, true);
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$this->buildSizesFiltering($find, $this->sizes);
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$this->buildDatesFiltering($find, $this->dates);
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$useGrep = $this->shell->testCommand('grep') && $this->shell->testCommand('xargs');
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$useSort = \is_int($this->sort) && $this->shell->testCommand('sort') && $this->shell->testCommand('cut');
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if ($useGrep && ($this->contains || $this->notContains)) {
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$grep = $command->ins('grep');
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$this->buildContentFiltering($grep, $this->contains);
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$this->buildContentFiltering($grep, $this->notContains, true);
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}
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if ($useSort) {
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$this->buildSorting($command, $this->sort);
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}
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$command->setErrorHandler(
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$this->ignoreUnreadableDirs
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// If directory is unreadable and finder is set to ignore it, `stderr` is ignored.
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? function ($stderr) { }
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: function ($stderr) { throw new AccessDeniedException($stderr); }
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);
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$paths = $this->shell->testCommand('uniq') ? $command->add('| uniq')->execute() : array_unique($command->execute());
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$iterator = new Iterator\FilePathsIterator($paths, $dir);
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if ($this->exclude) {
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$iterator = new Iterator\ExcludeDirectoryFilterIterator($iterator, $this->exclude);
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}
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if (!$useGrep && ($this->contains || $this->notContains)) {
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$iterator = new Iterator\FilecontentFilterIterator($iterator, $this->contains, $this->notContains);
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}
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if ($this->filters) {
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$iterator = new Iterator\CustomFilterIterator($iterator, $this->filters);
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}
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if (!$useSort && $this->sort) {
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$iteratorAggregate = new Iterator\SortableIterator($iterator, $this->sort);
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$iterator = $iteratorAggregate->getIterator();
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}
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return $iterator;
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}
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/**
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* {@inheritdoc}
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*/
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protected function canBeUsed()
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{
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return $this->shell->testCommand('find');
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}
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/**
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* @param Command $command
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* @param string $dir
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*
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* @return Command
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*/
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protected function buildFindCommand(Command $command, $dir)
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{
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return $command
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->ins('find')
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->add('find ')
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->arg($dir)
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->add('-noleaf'); // the -noleaf option is required for filesystems that don't follow the '.' and '..' conventions
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}
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/**
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* @param Command $command
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* @param string[] $names
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* @param bool $not
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*/
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private function buildNamesFiltering(Command $command, array $names, $not = false)
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{
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if (0 === \count($names)) {
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return;
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}
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$command->add($not ? '-not' : null)->cmd('(');
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foreach ($names as $i => $name) {
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$expr = Expression::create($name);
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// Find does not support expandable globs ("*.{a,b}" syntax).
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if ($expr->isGlob() && $expr->getGlob()->isExpandable()) {
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$expr = Expression::create($expr->getGlob()->toRegex(false));
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}
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// Fixes 'not search' and 'full path matching' regex problems.
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// - Jokers '.' are replaced by [^/].
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// - We add '[^/]*' before and after regex (if no ^|$ flags are present).
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if ($expr->isRegex()) {
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$regex = $expr->getRegex();
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$regex->prepend($regex->hasStartFlag() ? '/' : '/[^/]*')
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->setStartFlag(false)
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->setStartJoker(true)
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->replaceJokers('[^/]');
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if (!$regex->hasEndFlag() || $regex->hasEndJoker()) {
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$regex->setEndJoker(false)->append('[^/]*');
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}
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}
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$command
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->add($i > 0 ? '-or' : null)
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->add($expr->isRegex()
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? ($expr->isCaseSensitive() ? '-regex' : '-iregex')
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: ($expr->isCaseSensitive() ? '-name' : '-iname')
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)
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->arg($expr->renderPattern());
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}
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$command->cmd(')');
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}
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/**
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* @param Command $command
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* @param string $dir
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* @param string[] $paths
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* @param bool $not
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*/
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private function buildPathsFiltering(Command $command, $dir, array $paths, $not = false)
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{
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if (0 === \count($paths)) {
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return;
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}
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$command->add($not ? '-not' : null)->cmd('(');
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foreach ($paths as $i => $path) {
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$expr = Expression::create($path);
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// Find does not support expandable globs ("*.{a,b}" syntax).
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if ($expr->isGlob() && $expr->getGlob()->isExpandable()) {
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$expr = Expression::create($expr->getGlob()->toRegex(false));
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}
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// Fixes 'not search' regex problems.
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if ($expr->isRegex()) {
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$regex = $expr->getRegex();
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$regex->prepend($regex->hasStartFlag() ? preg_quote($dir).\DIRECTORY_SEPARATOR : '.*')->setEndJoker(!$regex->hasEndFlag());
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} else {
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$expr->prepend('*')->append('*');
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}
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$command
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->add($i > 0 ? '-or' : null)
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->add($expr->isRegex()
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? ($expr->isCaseSensitive() ? '-regex' : '-iregex')
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: ($expr->isCaseSensitive() ? '-path' : '-ipath')
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)
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->arg($expr->renderPattern());
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}
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$command->cmd(')');
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}
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/**
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* @param Command $command
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* @param NumberComparator[] $sizes
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*/
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private function buildSizesFiltering(Command $command, array $sizes)
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{
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foreach ($sizes as $i => $size) {
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$command->add($i > 0 ? '-and' : null);
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switch ($size->getOperator()) {
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case '<=':
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$command->add('-size -'.($size->getTarget() + 1).'c');
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break;
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case '>=':
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$command->add('-size +'.($size->getTarget() - 1).'c');
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break;
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case '>':
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$command->add('-size +'.$size->getTarget().'c');
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break;
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case '!=':
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$command->add('-size -'.$size->getTarget().'c');
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$command->add('-size +'.$size->getTarget().'c');
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break;
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case '<':
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default:
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$command->add('-size -'.$size->getTarget().'c');
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}
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}
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}
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/**
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* @param Command $command
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* @param DateComparator[] $dates
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*/
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private function buildDatesFiltering(Command $command, array $dates)
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{
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foreach ($dates as $i => $date) {
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$command->add($i > 0 ? '-and' : null);
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$mins = (int) round((time() - $date->getTarget()) / 60);
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if (0 > $mins) {
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// mtime is in the future
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$command->add(' -mmin -0');
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// we will have no result so we don't need to continue
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return;
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}
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switch ($date->getOperator()) {
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case '<=':
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$command->add('-mmin +'.($mins - 1));
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break;
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case '>=':
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$command->add('-mmin -'.($mins + 1));
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break;
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case '>':
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$command->add('-mmin -'.$mins);
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break;
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case '!=':
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$command->add('-mmin +'.$mins.' -or -mmin -'.$mins);
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break;
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case '<':
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default:
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$command->add('-mmin +'.$mins);
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}
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}
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}
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/**
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* @param Command $command
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* @param string $sort
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*
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* @throws \InvalidArgumentException
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*/
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private function buildSorting(Command $command, $sort)
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{
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$this->buildFormatSorting($command, $sort);
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}
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/**
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* @param Command $command
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* @param string $sort
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*/
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abstract protected function buildFormatSorting(Command $command, $sort);
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/**
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* @param Command $command
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* @param array $contains
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* @param bool $not
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*/
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abstract protected function buildContentFiltering(Command $command, array $contains, $not = false);
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}
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