Puppet facter to extract the installed version of a composer package

composer_package_version.rb

# Adapt the variable name "package_version", the path of composer and the composer package name to your needs

Facter.add("package_version") do
  setcode do
    Facter::Util::Resolution.exec('/bin/bash -c "cd /var/www/my_project && [[ -f composer.lock ]] && /usr/local/bin/composer show -i acme/package | grep versions | awk \'{print \\$4}\'"')
  end
end