<?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:----Nzk1NjE1NjQ2Mjg2Mjc3NSA0MTI3OTM4MzM0MDA3MjQwIDc5Nzk3MDU1MjkyNTYzNzE=