Create your own gem with github, jeweler and rubygems.org. I gave this talk at Railscamp Germany 4.

1. Create
Your Own Gem
with github, jeweler and rubygems

2. Gem structure
Gem repository
Gem versioning
Gem releasing

3. Get a Github Account
Don’t you have one yet?

4. Rubygems Account

5. gem install
jeweler

6. Create a Project
jeweler an-awesome-gem --rspec
--rubygems
cd an-awesome-gem
Safe some time with defaults:
export JEWELER_OPTS="--rspec"

7. Create a Version
rake version:write
> version is 0.0.0

8. Update Versions
rake version:bump:minor
major . minor . patch
> version is 0.1.0

9. Description
require 'rubygems'
require 'rake'
begin
require 'jeweler'
Jeweler::Tasks.new do |gem|
gem.name = "an-awesome-gem"
gem.summary = %Q{TODO: one-line summary of your gem}
gem.description = %Q{TODO: longer description of your gem}
gem.email = "nico@hagenburger.net"
gem.homepage = "http://github.com/hagenburger/an-awesome-gem"
gem.authors = ["Nico Hagenburger"]
gem.add_development_dependency "rspec", ">= 1.2.9"
# gem is a Gem::Specification... see http://www.rubygems.org/
read/chapter/20 for additional settings
end
an-awesome-gem/Rakefile

10. Github Repository

11. Git It
git add .
git commit -m "initial commit"

12. Local Install
[sudo] rake install
Be careful:
- Only commited files will be installed
- Once commited but changed files will be
installed with current not commited
version

13. Release It
rake release
Magic:
✓ Commits
✓ Creates a release tag
✓ Pushes to github
✓ Releases to:
rubygems.org/gems/an-awesome-gem

14. Ready!

15. Don’t Forget
★ Edit/create README.md
★ Add a CHANGELOG.md
★ Add dependencies in Rakefile
★ Write some specs/tests
★ Promote it!

16. Any questions?

17. last name
first name
nico@hagenburger.net
e-mail
twitter
blog