Composer

Using box.phar

{
    "alias": "composer.phar",
    "chmod": "0755",
    "directories": ["src"],
    "files": ["LICENSE"],
    "finder": [
        {
            "name": "*.php",
            "exclude": ["Tests"],
            "in": "vendor"
        }
    ],
    "git-version": "package_version",
    "main": "bin/composer",
    "output": "composer.phar",
    "stub": true
}

Using kherge/box (Composer)

{
    "alias": "composer.phar",
    "chmod": "0755",
    "directories": ["src"],
    "files": [
        "LICENSE",
        "vendor/herrera-io/file-system-functions/src/lib/fs_functions.php",
        "vendor/herrera-io/json/src/lib/json_version.php",
        "vendor/herrera-io/phar-update/src/lib/constants.php"
    ],
    "finder": [
        {
            "name": "*.php",
            "exclude": [
                "herrera-io",
                "kherge",
                "phpseclib",
                "phpunit",
                "Tests",
                "yaml"
            ],
            "in": "vendor"
        }
    ],
    "git-version": "package_version",
    "main": "bin/composer",
    "output": "composer.phar",
    "stub": true
}