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<?php
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/*
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* This file is part of Composer.
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*
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* (c) Nils Adermann <naderman@naderman.de>
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* Jordi Boggiano <j.boggiano@seld.be>
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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 Composer\Downloader;
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use Composer\Package\PackageInterface;
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/**
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* @author Jordi Boggiano <j.boggiano@seld.be>
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*/
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class GitDownloader implements DownloaderInterface
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{
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/**
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* {@inheritDoc}
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*/
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public function distDownload(PackageInterface $package, $path)
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{
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$url = escapeshellarg($package->getDistUrl());
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$ref = escapeshellarg($package->getDistReference());
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system(sprintf('git archive --format=tar --prefix=%s --remote=%s %s | tar -xf -', $path, $url, $ref));
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}
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/**
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* {@inheritDoc}
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*/
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public function sourceDownload(PackageInterface $package, $path)
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{
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if (!$package->getSourceReference()) {
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throw new \InvalidArgumentException('The given package is missing reference information');
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}
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$url = escapeshellarg($package->getSourceUrl());
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$ref = escapeshellarg($package->getSourceReference());
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system(sprintf('git clone %s %s && cd %2$s && git reset --hard %s', $url, $path, $ref));
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}
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/**
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* {@inheritDoc}
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*/
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public function distUpdate(PackageInterface $initial, PackageInterface $target, $path)
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{
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throw new \Exception('Updating dist installs from git is not implemented yet');
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}
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/**
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* {@inheritDoc}
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*/
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public function sourceUpdate(PackageInterface $initial, PackageInterface $target, $path)
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{
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if (!$target->getSourceReference()) {
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throw new \InvalidArgumentException('The given package is missing reference information');
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}
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$this->enforceCleanDirectory($path);
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system(sprintf('cd %s && git fetch && git reset --hard %s', $path, $target->getSourceReference()));
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}
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/**
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* {@inheritDoc}
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*/
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public function remove(PackageInterface $package, $path)
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{
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$this->enforceCleanDirectory($path);
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$fs = new Util\Filesystem();
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$fs->remove($path);
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}
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private function enforceCleanDirectory($path)
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{
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exec(sprintf('cd %s && git status -s', $path), $output);
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if (implode('', $output)) {
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throw new \RuntimeException('Source directory has uncommitted changes');
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}
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}
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}
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