I've sadly had to back out of using jj after leaning into LLM coding assistance, as, even with an extremely well-written jj guide in its context (and literally blocking the use of git), it never failed to screw things up more than if I was just using git (I call this an "LLMpedance mismatch" problem)
If LLM coding assistance continues to increase, it's going to be a rather large speed bump to cross
One of the biggest problems is actually unsolvable if you want to keep colocated Git and git tooling around, because it has to do with how jj fundamentally works: detached HEADs, detached HEADs everywhere
You yourself may not use AI, this is for those who do and are interested in switching to jj
My biggest problem with `add -p` is correcting any patches I added or rejected by accident. Often times I skip through dozens of things I don’t want to add, then realized that last hunk was something I did need. But I can’t re-visit it, I have to start over and try extra hard to not skip past it again.
I wish the j and k shortcuts could revisit hunks I’ve already added/rejected, not just ones I haven’t reviewed yet. On a large set of unstaged changes that you mostly don’t want, it really sucks to “lose your place” in the list of hunks.
Magit allows selective staging/unstaging, either of hunks, or by selecting lines (AKA Emacs's "region"). I avoid staging from the git commandline, unless I'm just doing whole files.
PS: Majutsu provides this too (a magit-like tool for jj)
I always use git add -i which is just one level up. The tui is pretty intuitive for day to day tasks, including staging partial chunks or lines of code.
The whole "Stage this hunk [y,n,q,a,d,k,K,j,J,g,/,e,p,P,?]?" line is pretty intimidating, but I urge anyone who still wants to understand git and be able to (themselves) use it effectively, to do "?" when you see it, read through what each action does and forcefully try them out to see what they do, in some low stakes project. Ends up being a super quick way of staging a whole bunch of work and avoiding staging other, but it's pretty weird at first glance.
it's not as easy as you said.
it can be tricky and complicated to use edit mode.
I usually use it, but still often don't understand - will this edit succeed or why it is failed.
Mercurial's `hg commit -i` with the curses interface is so much better for this it's not even funny. Fortunately I'd assume Jujutsu's UX is similar, based on arccy's comment.
I find grepdiff and this function are pretty useful if you want to pull certain hunks out of a large change set:
#!/bin/bash
# Put this into your .bashrc, or whatever.
function git-add-regex {
git diff -U0 | grepdiff -E "$1" --output-matching=hunk | git apply --cached --unidiff-zero
}
After switching to jujutsu, I assure you I don't miss this feature.
jj takes the opposite approach. It keeps staging things, and you use split whenever you want to separate things out.
(And yes, it stores the staged changes as revisions, so you can always back out to a previous staged state).
Sounds like `git add .` then `git reset -p`
If LLM coding assistance continues to increase, it's going to be a rather large speed bump to cross
One of the biggest problems is actually unsolvable if you want to keep colocated Git and git tooling around, because it has to do with how jj fundamentally works: detached HEADs, detached HEADs everywhere
You yourself may not use AI, this is for those who do and are interested in switching to jj
OK, OK - I lie. For personal projects I do - some handle jj decently well. But at work I don't let it make any commits ... and it never tries to.
What tools are you using that won't work with detached heads?
I wish the j and k shortcuts could revisit hunks I’ve already added/rejected, not just ones I haven’t reviewed yet. On a large set of unstaged changes that you mostly don’t want, it really sucks to “lose your place” in the list of hunks.
PS: Majutsu provides this too (a magit-like tool for jj)
git add . -N
And then review the text itself as part of the git add -p workflow
Sublime Merge for the win; a fantastic visual interface with context and reversible inputs. Don't leave home without it!
Also, you can use -p for stash push