Blueprint

Blueprint is the Rails application starter used at datarockets.

Installation

TODO: fix it

Add this line to your application's Gemfile:

gem 'blueprint'

And then execute:

$ bundle

Or install it yourself as:

$ gem install blueprint

Usage

For creating rails application run:

$ blueprint new APP_NAME

Create custom generator

Guide for creating and editing generators.

Step 1: create command for calling generator

Add command for generator in lib/blueprint/generator/cli.rb.

Example:

command :new do |c|
  c.syntax = 'blueprint new APP_PATH'
  c.summary = 'Generate rails application'
  c.description = 'Generate rails application with default settings and dependecies'
  c.action do |args, _options|
    Blueprint::Generator::RailsApp.new(name: args[0]).run!
  end
end

Step 2: Create generator class

Extending class of Blueprint::Generator::Base:

require 'blueprint/generator/base'

module Blueprint
  module Generator
    class RailsApp < Base
    end
  end
end

Step 3: Create folder with files

Create folder for files and templates for your application on folder lib/blueprint/generator/templates/ and override folder name on generator class

def self.template_path
  'rails_app'
end

Step 4: Create ask question step for generator

Override ask_questions method for creating config hash. Question list.

def ask_questions
  config[:bootstrap] = agree("Would you like initialize bootstrap on your application?")
end

Step 5: Create generator script

Override execute method for creating generator script.

def execute
  shell "rails new #{name} --skip-bundle --database=postgresql --no-rc --skip-test-unit"
end

List with commands for creating execute script:

Command	Description	Example
cmd_title(string)	Puts string on console	cmd_title('Start script')
shell(cmd)	Run shell command	shell('mkdir examples')
cd_path(path)	Change current path	cd_path(name)
copy_file(from, to)	Copy file from templates path to project. If second argument exist, copy file to tepmlates path	copy_file('.editorconfig')
copy_file_from_template(from, to)	Copy erb file from templates path to project with parsing. If second argument exist, copy file to tepmlates path	copy_file_from_template('Gemfile')

Variable lists in generator class and erb templates

Variable	Description
name	First argument on running script
config	Generated on ask_question step

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/blueprint. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

License

The gem is available as open source under the terms of the MIT License.