Using this installer, all Composer packages of "type" : "sledgehammer-module"
will be installed in sledgehammer/
folder.
Add the "sledgehammer/core" as dependancy to your package.
"require": {
"sledgehammer/core": "*"
}
You can also use "sledgehammer/composer-installer" instead, but then "sledgehammer/core" won't be installed as dependancy (which the package probably relies on, being a "sledgehammer-module" and all)
curl -s https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin
cd /your/project/
composer.phar install sledgehammer/core