<?php
/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer\Package\Archiver;
/**
* An exclude filter that processes gitignore and gitattributes
*
* It respects export-ignore git attributes
*
* @author Nils Adermann <naderman@naderman.de>
*/
class GitExcludeFilter extends BaseExcludeFilter
{
/**
* Parses .gitignore and .gitattributes files if they exist
*
* @param string $sourcePath
*/
public function __construct($sourcePath)
{
parent::__construct($sourcePath);
if (file_exists($sourcePath.'/.gitignore')) {
$this->excludePatterns = $this->parseLines(
file($sourcePath.'/.gitignore'),
array($this, 'parseGitIgnoreLine')
);
}
if (file_exists($sourcePath.'/.gitattributes')) {
$this->excludePatterns = array_merge(
$this->excludePatterns,
$this->parseLines(
file($sourcePath.'/.gitattributes'),
array($this, 'parseGitAttributesLine')
)
);
}
}
/**
* Callback line parser which process gitignore lines
*
* @param string $line A line from .gitignore
*
* @return array An exclude pattern for filter()
*/
public function parseGitIgnoreLine($line)
{
return $this->generatePattern($line);
}
/**
* Callback parser which finds export-ignore rules in git attribute lines
*
* @param string $line A line from .gitattributes
*
* @return array|null An exclude pattern for filter()
*/
public function parseGitAttributesLine($line)
{
$parts = preg_split('#\s+#', $line);
if (count($parts) == 2 && $parts[1] === 'export-ignore') {
return $this->generatePattern($parts[0]);
}
return null;
}
}