capistrano-npm

capistrano-npm is a Capistrano extension that will let you run npm during your deploy process.

Installation

Install the Gem

gem install capistrano-npm

Or if you're using Bundler, add it to your Gemfile:

gem 'capistrano-npm'

Add to Capfile or config/deploy.rb:

require 'capistrano/npm'

Usage

Add the task to your deploy.rb:

after 'deploy:finalize_update', 'npm:install'

And npm install will be run in your in your latest_release path on deploy:finalize_update.

Limitations

There's currently no way to specify a path other than the default latest_releast where npm installs. This will be fixed in a future version.

Optimize

Ideally when using npm, you should add node_modules to your .gitignore file to keep them out of your repository.

Since npm install does not guarantee that you will get the same package versions when deploying, you should use npm shrinkwrap (https://npmjs.org/doc/shrinkwrap.html) first.

Running npm shrinkwrap will created a npm-shrinkwrap.json file that locks down the dependency versions. Check this file into your repository.

Now when deploying, npm install will detect the npm-shrinkwrap.json file and use that to install the packages.

Tasks

npm:install: Runs npm install.

Dependencies

This extension also adds the npm command as a Capistrano dependency. Meaning when you run cap deploy:check, it will make sure the npm command exists.

Configuration

npm_path: Path to npm bin on the remote server. Defaults to just npm as its assumed to be in your $PATH.
npm_options: Options for npm command. Defaults to --production --silent to avoid installing dev dependencies.

ibrouos/capistrano-npm