Auto-configure PHP_CodeSniffer settings directly from composer.json

composer.json

{
    "require-dev": {
        "squizlabs/php_codesniffer": "2.*"
    },
    "scripts": {
        "phpcs-setup": [
            "\"vendor/bin/phpcs\" --config-set default_standard ruleset.xml",
            "\"vendor/bin/phpcs\" --config-set colors 1",
            "\"vendor/bin/phpcs\" --config-set show_progress 1",
            "\"vendor/bin/phpcs\" --config-set report_width 120",
            "\"vendor/bin/phpcs\" --config-set encoding utf-8"
        ],
        "post-install-cmd": [
            "@phpcs-setup"
        ]
    }
}