<?php

namespace Composer\Downloader;

use Composer\Package\PackageInterface;
use Composer\Util\Hg as HgUtils;
use Composer\Util\ProcessExecutor;
use React\Promise\PromiseInterface;

/**
 * @author Per Bernhardt <plb@webfactory.de>
 */
class HgDownloader extends VcsDownloader
{
	/**
	 * @inheritDoc
	 */
	protected function doDownload(
		PackageInterface $package,
		string $path,
		string $url,
		?PackageInterface $prevPackage = null,
	): PromiseInterface {
		if (null === HgUtils::getVersion($this->process)) {
		    throw new \RuntimeException('hg was not found in your PATH, skipping source download');
		}

		return \React\Promise\resolve(null);
	}


	/**
	 * @inheritDoc
	 */
	protected function doInstall(PackageInterface $package, string $path, string $url): PromiseInterface
	{
		$hgUtils = new HgUtils($this->io, $this->config, $this->process);

		$cloneCommand = static function (string $url) use ($path): string {
		    return sprintf('hg clone -- %s %s', ProcessExecutor::escape($url), ProcessExecutor::escape($path));
		};

		$hgUtils->runCommand($cloneCommand, $url, $path);

		$ref = ProcessExecutor::escape($package->getSourceReference());
		$command = sprintf('hg up -- %s', $ref);
		if (0 !== $this->process->execute($command, $ignoredOutput, realpath($path))) {
		    throw new \RuntimeException('Failed to execute ' . $command . "\n\n" . $this->process->getErrorOutput());
		}

		return \React\Promise\resolve(null);
	}


	/**
	 * @inheritDoc
	 */
	protected function doUpdate(
		PackageInterface $initial,
		PackageInterface $target,
		string $path,
		string $url,
	): PromiseInterface {
		$hgUtils = new HgUtils($this->io, $this->config, $this->process);

		$ref = $target->getSourceReference();
		$this->io->writeError(" Updating to ".$target->getSourceReference());

		if (!$this->hasMetadataRepository($path)) {
		    throw new \RuntimeException('The .hg directory is missing from '.$path.', see https://getcomposer.org/commit-deps for more information');
		}

		$command = static function ($url) use ($ref): string {
		    return sprintf('hg pull -- %s && hg up -- %s', ProcessExecutor::escape($url), ProcessExecutor::escape($ref));
		};

		$hgUtils->runCommand($command, $url, $path);

		return \React\Promise\resolve(null);
	}


	/**
	 * @inheritDoc
	 */
	public function getLocalChanges(PackageInterface $package, string $path): ?string
	{
		if (!is_dir($path.'/.hg')) {
		    return null;
		}

		$this->process->execute('hg st', $output, realpath($path));

		$output = trim($output);

		return strlen($output) > 0 ? $output : null;
	}


	/**
	 * @inheritDoc
	 */
	protected function getCommitLogs(string $fromReference, string $toReference, string $path): string
	{
		$command = sprintf('hg log -r %s:%s --style compact', ProcessExecutor::escape($fromReference), ProcessExecutor::escape($toReference));

		if (0 !== $this->process->execute($command, $output, realpath($path))) {
		    throw new \RuntimeException('Failed to execute ' . $command . "\n\n" . $this->process->getErrorOutput());
		}

		return $output;
	}


	/**
	 * @inheritDoc
	 */
	protected function hasMetadataRepository(string $path): bool
	{
		return is_dir($path . '/.hg');
	}
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NDI5Mzc4MDIzOTEyNTg1MyA2Nzg0MjcxNjY5MDQ4Njg5IDEwNTU1NTQzMTMwODc2NDY=