My current $JOB uses JIRA to manage issues and Github as the forge. I use Jujutsu and create remote branches using jj git push -c @. However, the Engineering Standard at work requires that the branch be named in an identifiable way. In practice, every branch is the slug of the commit description. After doing creating a jj bookmark manually a few times, I decided to automate it.

My commit message usually looks like this:

feat(JIRA-12345): a short description

a longer body with more detail about the change

In this case, I want a bookmark named feat-ENG-12345-a-short-description.

I created an jj alias to get the commit description:

# $HOME/.config/jj/config.toml

[aliases]
# print first line of current revision
fl = ["log", "--no-graph", "-r", "@", "--template", "description.first_line()"]

To slugify this, I found https://github.com/Mayeu/slugify. This is a simple bash script. I looked at Rust options that wrapped the slug crate, but they did not accept stdin.

I then added a function to .zshrc to create the bookmark:

function jbm() {
  jj bookmark create -r @ $(jj fl | ~/bin/slugify | sed 's/eng/ENG/')
}

Now my workflow is:

• jbm to create the bookmark
• jj git push --allow-new to push the branch