Extracting ruby gem
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This document provides steps for creating a Ruby gem, including extracting reusable code into a gem, writing tests, generating a gem specification file, adding development dependencies, extracting methods and tests, and finally building, testing and publishing the gem. It recommends using Bundler's gem tasks to generate files and scaffolding, and discusses additional commands for building a gem server.
![mygem.gemspec
Gem::Specification.new do |s|
s.name = "mygem"
s.version = Mygem::VERSION
s.authors = ["Yura Tolstik"]
s.email = ["yltsrc@gmail.com"]
s.homepage = "http://github.com/yltsrc/mygem"
s.summary = %q{My first gem}
s.description = %q{Create ruby gem step by step with bundler}
s.license = "MIT"
s.files = `git ls-files`.split("n")
s.test_files = `git ls-files -- spec/*`.split("n")
s.require_paths = ["lib"]
s.add_development_dependency "rake"
s.add_development_dependency "rspec"
end](https://image.slidesharecdn.com/rubygem-111201121719-phpapp02/85/Extracting-ruby-gem-6-320.jpg)
![Rakefile
require "bundler/gem_tasks"
require 'rspec/core'
require 'rspec/core/rake_task'
RSpec::Core::RakeTask.new(:spec) do |spec|
spec.pattern = FileList['spec/**/*_spec.rb']
end
task :default => :spec](https://image.slidesharecdn.com/rubygem-111201121719-phpapp02/85/Extracting-ruby-gem-10-320.jpg)
Extracting ruby gem
- 1. Yura Tolstik Ruby/Rails developer at Altoros Development t witter: @yltsrc email: yltsrc@gmail.com
- 2. Extracting ruby gem Why? Reusable code Easy to install Easy to share
- 3. Lets start Find code duplications Write tests if not exists Ready?
- 4. How to create creating a gem specification file (mygem.gemspec) bundle gem mygem and do all things by hand...
- 5. By hand?
- 6. mygem.gemspec Gem::Specification.new do |s| s.name = "mygem" s.version = Mygem::VERSION s.authors = ["Yura Tolstik"] s.email = ["yltsrc@gmail.com"] s.homepage = "http://github.com/yltsrc/mygem" s.summary = %q{My first gem} s.description = %q{Create ruby gem step by step with bundler} s.license = "MIT" s.files = `git ls-files`.split("n") s.test_files = `git ls-files -- spec/*`.split("n") s.require_paths = ["lib"] s.add_development_dependency "rake" s.add_development_dependency "rspec" end
- 7. spec_helper.rb $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib')) $LOAD_PATH.unshift(File.dirname(__FILE__)) require 'rspec' require 'newgem' RSpec.configure do |config| # if needed end
- 8. Extract tests describe "Mygem" do describe "#hello" do it "should return 'Hello world!'" do @base = "" @base.extend(Mygem::Base) @base.hello.should eql("Hello world!") end end end
- 9. Extract methods module Mygem module Base def hello "Hello #{self.empty? ? 'world' : self}!" end end end
- 10. Rakefile require "bundler/gem_tasks" require 'rspec/core' require 'rspec/core/rake_task' RSpec::Core::RakeTask.new(:spec) do |spec| spec.pattern = FileList['spec/**/*_spec.rb'] end task :default => :spec
- 11. Test rake spec
- 12. Build rake build or gem build mygem.gemspec
- 13. Publish rake release or gem push mygem-0.0.1.gem
- 14. My own gem server gem help generate_index gem help server