Rails Git Version

If you are using Git to manage your Rails apps' source code this gem will make it possible to find a description of what is deployed from within your browser.

To add this functionality to your Rails 3 app add it to your Gemfile.

gem 'rails_git_version'

Bundle install the new gem, and decide where you want to access your description of what's currently live.

If you want to use a path of /_deployed you can configure this by adding the following to your routes.rb file.

Rails.application.routes.draw do
  mount RailsGitVersion::Engine => '/_deployed'
end

By default, RailGitVersion will assume your git repository is in the same directory as Rails.root. If this is not the case you can tell RailsGitVersion where to look for a .git directory by adding the following line to your config/application.rb file.

module Dummy
  class Application < Rails::Application
    config.encoding = 'utf-8'
    config.filter_parameters += [:password]
    config.assets.enabled = true
    config.assets.version = '1.0'

    # And all of your other configuration...

    # Add this line with a path to the directory containing the .git
    # directory.
    config.rails_git_version.root = '/var/www/webapp/shared/repo'
  end
end

When you start your Rails application, RailsGitVersion will attempt to find the SHA of the most recent commit using Grit. If the repository can be accessed, and the commit found it will be logged to your Rails.logger.

If for some reason Grit can't find your .git directory a quiet message will be printed to explain something has gone wrong.

Try running Grit::Repo.new(path) within rails console replacing path with the full path logged after something went wrong.