Git Co-pilot

Easily populate Git commit messages when pairing

Git Co-pilot provides a Git commit message template that can be pre-populated with one or more Co-authored-by trailers when you are pair programming. These trailers tell GitHub that multiple users authored a commit. See GitHub's docs for more information on this feature.

Git Co-pilot requires Ruby 2.2 or newer.

Install it from RubyGems:

$ gem install git-copilot

Then run git-copilot init to finish the setup. This will (optionally) add a git copilot alias and configure git commit to use a template managed by Git Co-pilot.

These instructions assume that you've set up the Git alias git copilot. If you haven't, just run git-copilot instead of git copilot.

When you are pair programming, run git copilot pair with the username(s) of the people you're pairing with.

$ git copilot pair jake
$ git commit
# Write a commit message in your editor

$ git show --no-patch
commit 419493356d6ced752974104acf9698a94525a6da
Author: John Smith <john.smith@example.com>
Date:   Mon Feb 12 16:24:03 2018 -0500

    Refactor FooService

    Co-authored-by: Jake Johnson <jake.johnson@example.com>

You can also specify multiple pairs -- as many as you want!

$ git copilot pair jake george
$ git commit
# Write a commit message in your editor

$ git show --no-patch
commit b1abdf4693e2da8977bf23de5765a3654532aba4
Author: John Smith <john.smith@example.com>
Date:   Mon Feb 12 16:24:03 2018 -0500

    Refactor FooService

    Co-authored-by: Jake Johnson <jake.johnson@example.com>
    Co-authored-by: George Geoffries <george.geoffries@example.com>

When it's time to go solo, run git copilot solo.

$ git copilot solo
$ git commit
# Write a commit message in your editor

$ git show --no-patch
commit f438fbe9e8a9ef775821eb3c9ffd04a9e28216fa
Author: John Smith <john.smith@example.com>
Date:   Mon Feb 12 16:24:03 2018 -0500

    Fix failing test from refactor

Before you can git copilot pair with someone, git copilot needs to know about them.

To add a pair, run git copilot user add with a "username" for the person you want to add. This username could be the person's username on GitHub or a company network, but it doesn't have to be; it's just how you will reference the user in git copilot pair commands.

$ git copilot user add jake
Git author name: Jake Johnson
Git author email: jake.johnson@example.com

Added Jake Johnson <jake.johnson@example.com> as "jake"!

If the user is on GitHub, you can import this information with the --github flag. If the details from GitHub are correct, you can just press "Enter" insted of re-entering them.

$ git copilot user add --github jake
Git author name: (Jake Johnson) # Just hit enter
Git author email: (jake.johnson@example.com) # Just hit enter

Added Jake Johnson <jake.johnson@example.com> as "jake"!

To remove a user, run git copilot user remove with the username you want to remove.

$ git copilot user remove jake
Remove Jake Johnson <jake.johnson@example.com>? y
Removed jake!

To list all users that Git Co-pilot knows about, run git copilot user list.

$ git copilot user list
jake   Jake Johnson <jake.johnson@example.com>
george George Geoffries <george.geoffries@example.com>

Git Co-pilot stores all of its data at $HOME/.gitcopilot.yml. The structure of the file looks something like this:

---
template: |-
  # Write your commit message here

  %{coauthors}
users:
  jake:
    name: Jake Johnson
    email: jake.johnson@example.com
  george:
    name: George Geoffries
    email: george.geoffries@example.com
current_pairs:
- george

1. Clone this repo
2. Run bin/setup to install dependencies
3. Run bundle exec rake to run all tests
4. You can run bin/console to open an IRB console with Git Co-pilot already loaded

Bug reports and pull requests are welcome on GitHub at https://github.com/atmattpatt/git-copilot.

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