Deployer (Contao deployment) with scp instead of rsync

deploy.php

<?php

namespace Deployer;

$recipes = [
    'common',
    'symfony',

    'terminal42/deployer-recipes/recipe/contao',
    'terminal42/deployer-recipes/recipe/database',
    'terminal42/deployer-recipes/recipe/deploy',
    'terminal42/deployer-recipes/recipe/maintenance',
];

// Require the recipes
foreach ($recipes as $recipe) {
    if (false === strpos($recipe, '/')) {
        require_once sprintf('recipe/%s.php', $recipe);
        continue;
    }

    require_once sprintf('%s/vendor/%s.php', getcwd(), $recipe);
}

// Load the hosts
inventory('deploy-hosts.yml');

// Enable SSH multiplexing
set('ssh_multiplexing', true);

// Number of releases to keep
set('keep_releases', 3);

// set shared directories
set(
    'shared_dirs',
    [
        'assets/images',
        'files',
        'system/config',
        'var/sql',
        'contao-manager',
        'var/logs',
        'web/share',
    ]
);

// Disable anonymous stats
set('allow_anonymous_stats', false);

set('scp_src', __DIR__);
set('scp_dest', '{{release_path}}');

// Tasks
task(
    'database:backup',
    static function () {
        // ...

    }
)->desc('Backup database');

task(
    'scp_files',
    static function () {
        $src = get('scp_src');
        while (is_callable($src)) {
            $src = $src();
        }
        if (!trim($src)) {
            throw new \RuntimeException('You need to specify a source path.');
        }

        $dst = get('scp_dest');
        while (is_callable($dst)) {
            $dst = $dst();
        }
        if (!trim($dst)) {
            throw new \RuntimeException('You need to specify a destination path.');
        }

        $server = \Deployer\Task\Context::get()->getHost();
        if ($server instanceof \Deployer\Host\Localhost) {
            throw new \RuntimeException('Host is localhost.');
        }

        $host = $server->getRealHostname();
        $port = $server->getPort() ? ' -p' . $server->getPort() : '';
        $user = !$server->getUser() ? '' : $server->getUser() . '@';

        runLocally("scp$port '$src/config/config.yml' '$user$host:$dst/config'");
        runLocally("scp$port '$src/composer.json' '$user$host:$dst'");
        runLocally("scp$port '$src/composer.lock' '$user$host:$dst'");
        runLocally("scp$port -r '$src/contao/' '$user$host:$dst'");
    }
)->desc('SCP local->remote');


// Main task
task(
    'deploy',
    [
        // Prepare
        'contao:validate',

        // Deploy
        'deploy:info',
        'deploy:prepare',
        'deploy:lock',
        'deploy:release',
        'deploy:create_initial_dirs',
        'deploy:shared',
        'scp_files',
        'deploy:composer_self_update',
        'deploy:platform_release',
        'deploy:vendors',
        'deploy:entry_points',

        // Release
        'maintenance:enable',
        'contao:download_manager',
        'deploy:symlink',
        'deploy:clear_accelerator_clear',
        'database:backup',
        'maintenance:disable',

        // Cleanup
        'deploy:unlock',
        'cleanup',
        'success',
    ]
)->desc('Deploy your project');