First off, thank you for considering contributing to Active Admin. It's people like you that make Active Admin such a great tool.
If you've noticed a bug or have a question that doesn't belong on the mailing list or Stack Overflow, search the issue tracker to see if someone else in the community has already created a ticket. If not, go ahead and make one!
If this is something you think you can fix, then fork Active Admin and create a branch with a descriptive name.
A good branch name would be (where issue #325 is the ticket you're working on):
git checkout -b 325-add-japanese-translations
Install the development dependencies:
bundle install
Now you should be able to run the entire suite using:
rake test
Which will generate a rails application in spec/rails
to run the tests against.
If your tests are passing locally but they're failing on Travis, reset your test environment:
rm -rf spec/rails && bundle update
At this point, you're ready to make your changes! Feel free to ask for help; everyone is a beginner at first 😸
Active Admin is meant to be used by humans, not cucumbers. So make sure to take a look at your changes in a browser.
To boot up a test Rails app:
script/local server
This will automatically create a Rails app if none already exists, and store it in the
.test-rails-apps
folder. The currently active app is symlinked to test-rails-app
.
If you have any Bundler issues, call the use_rails
script then prepend
the version of rails you would like to use in an environment variable:
script/use_rails 4.0.0
RAILS=4.0.0 script/local server
You should now be able to open http://localhost:3000/admin in your browser. You can log in using:
User: [email protected]
Password: password
If you need to perform any other commands on the test application, use the
local
script. For example:
To boot the rails console:
script/local console
Or to migrate the database:
script/local rake db:migrate
Once you've implemented your code, got the tests passing, previewed it in a browser, you're ready to test it against multiple versions of Rails.
rake test:major_supported_rails
This runs our test suite against a couple of major versions of Rails. Travis does essentially the same thing when you open a Pull Request. We care about quality, so your PR won't be merged until all tests pass.
At this point, you should switch back to your master branch and make sure it's up to date with Active Admin's master branch:
git remote add upstream [email protected]:activeadmin/activeadmin.git
git checkout master
git pull upstream master
Then update your feature branch from your local copy of master, and push it!
git checkout 325-add-japanese-translations
git rebase master
git push --set-upstream origin 325-add-japanese-translations
Finally, go to GitHub and make a Pull Request :D
If a maintainer asks you to "rebase" your PR, they're saying that a lot of code has changed, and that you need to update your branch so it's easier to merge.
To learn more about rebasing in Git, there are a lot of good resources, but here's the suggested workflow:
git checkout 325-add-japanese-translations
git pull --rebase upstream master
git push -f 325-add-japanese-translations