Integration with git-dependent tools

[kriomant]

I started using jj and I love it. However, I miss integration with tools which expects git repository.
For example, I really miss cargo release. It dislikes detached checkouts.

Is it possible to create wrapper for such tools? How I see it:

You run jj git run cargo release, jj assigns git branch to current head, starts given tool, then absorbs changes made by tool.

[PhilipMetzger]

I started using jj and I love it. However, I miss integration with tools which expects git repository.
For example, I really miss cargo release. It dislikes detached checkouts.

Then you should colocate by default. Cargo at the moment won't accept any new VCS's, see https://internals.rust-lang.org/t/support-for-jj-jujutsu-vcs/19250

[martinvonz]

To clarify, "colocate" refers to https://martinvonz.github.io/jj/latest/git-compatibility/#co-located-jujutsugit-repos

[kriomant]

I use colocation, it doesn't help in this case.

[tim-janik]

I started using jj and I love it. However, I miss integration with tools which expects git repository. For example, I really miss cargo release. It dislikes detached checkouts.

Is it possible to create wrapper for such tools? How I see it:

You run jj git run cargo release, jj assigns git branch to current head, starts given tool, then absorbs changes made by tool.

First, colocation doesn't fix Git tools not expecting a detached head state, for proper interop you also need to have JJ support for properly advancing Git branches, as outlined here: Branch Interoperability

In the same PR, @martinvonz asked to collect use cases for better interoperability / Integration with git-dependent tools, it might sense to list your case there: scenarios that should improve

[kriomant]

This is useful link, thank you!

[ilyagr]

In a co-located repo, if the detached head is a problem for cargo release, you could switch to a branch with git (e.g. git switch branch) before running cargo release.

jj should handle that just fine; if it doesn't, please let us know about any problems.

As others said, there are also discussion of having jj be able to preserve the current branch somehow, but that is not currently implemented, so you might have to redo git switch after mutating jj commands.

[kriomant]

Thank you, I'll try this.