Comment by steveklabnik
2 months ago
submodules aren't native with jj, you use git commands to manage them, and it works fine. Eventually there'll be some sort of native support.
worktrees are called "workspaces" in jj, but are the same.
A lot of people find jj easier to have good commit hygiene with, and find it simpler and more powerful, not less. But that said, if you're happy with git, you should continue to use it.
What is the most useful feature of jj that you think git doesn't have?
For me, that's probably jj undo, just because it makes everything else so nice to just give a try. I really don't worry about making mistakes.
But for me, it's not so much features that git doesn't have, it's that the core is factored in a way that's more focused and orthogonal. The stuff that I used to like to do with git is even easier and more straightforward with jj. This is more of the result of a bunch of different design decisions and how they fit together rather than just some specific feature that's great.
Sounds like jj just simplifies the interface of some git commands, mainly. After talking to some jj enthusiasts here, I think we just have a different perspective about what needs to be simple and even what constitutes simple. There is probably some lingering unfamiliarity with git among jj enthusiasts as well. I don't want to teach git to people who are not programmers, but I wouldn't want to teach any programmer's VCS to them honestly. If you are a programmer, I think git is the best.
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I can pick only one? Perhaps automatic rebasing then, i.e. that all descendant commits and bookmarks (branches) are automatically updated when you rewrite a commit, e.g. by amending into it.
I don't think I would want to rewrite all branches based on rewriting one of the ancestors of those branches. This only makes sense for local branches, and I just never have such a set of branches. Most rebases are to get ahead of upstream work, and I can't rewrite that. The rest are to rewrite commits that I made, and I collapse all those commits down periodically anyway. In the rare case I might be able to use this feature, rebasing all the other branches (realistically, probably like 1 or 2) would be easy enough to do manually with the feature described in this post. Rebasing and touching up commits is very easy with git interactive rebase. There are also features to automatically reorder commits with, e. g., `git commit --fixup` and `git rebase --autosquash`.
If you have others in mind then go ahead lol. I was just trying to make it easy.
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