Deploying PHP to a Cygwin Windows machine using Deployer (deployer.org)

deploy.php

function decygwin($path) {
    return preg_replace('/\/cygdrive\/(\D)\//', '$1:/', $path);
}

// use native symlinks, because non-native cygwin symlinks are not "directories": `is_dir('cygwin-symlink') == false`
set('env_vars', 'CYGWIN="winsymlinks:nativestrict"');

// cygwin release path fix
// replaces the cygwin release path (/cygdrive/c/) with the windows release path (C:/)
// increases compatibility with things like non-cygwin PHP for composer installs
// fixes "Could not open input file:" PHP errors
set('release_path', function () {
    $releaseExists = run("if [ -h {{deploy_path}}/release ]; then echo 'true'; fi")->toBool();
    if ($releaseExists) {
        $link = run("readlink {{deploy_path}}/release")->toString();
        $path = substr($link, 0, 1) === '/' ? $link : get('deploy_path') . '/' . $link;
    } else {
        $path = get('current_path');
    }

    return decygwin($path);
});

// symlink fix
// throw our environment variables before the symlink command, so cygwin creates the proper symlinks
set('bin/symlink', function () {
    if (get('use_relative_symlink')) {
        // Check if target system supports relative symlink.
        if (run('if [[ "$(man ln)" =~ "--relative" ]]; then echo "true"; fi')->toBool()) {
            $command = 'ln -nfs --relative';
        }
    }

    if(empty($command)) {
        $command = 'ln -nfs';
    }

    return '{{env_vars}} ' . $command;
});

I hope this ends up useful for anyone else who is in this unfortunate situation (deployment to a windows-based machine)

Installed the openssh, git, and curl cygwin packages and setup the openssh server as a service.

If you get this error:

setfacl: unknown option -- R

Add set('writable_mode', 'chown');