jonschlinkert/grunt-sync-pkg

grunt-sync-pkg is a minimalist Grunt plugin designed to keep package.json and bower.json synchronized by default, syncing only the name, version, and main properties. It automatically creates a bower.json file if one doesn't exist and is ideal for developers managing both npm and Bower packages who want to ensure consistency between these files. The plugin is easy to install and configure, with options to include or exclude specific properties and sync additional JSON files.