Jujutsu and Git
Jujutsu and Git
Posted Feb 14, 2026 4:28 UTC (Sat) by jc2026 (subscriber, #182142)In reply to: Jujutsu and Git by sunshowers
Parent article: Evolving Git for the next decade
The "universal undo" of jj is achieved by removing some state concepts from git. That may be an improvement in some people's eyes but it makes certain commit history manipulations and constructions more difficult. I'm not the only person to think this. https://github.com/jj-vcs/jj/discussions/1905 I think git was built the way it is, as opposed to the way jj is, to solve a particular problem.
>Based on jj's experience I've started building an operation log and universal undo into basically any project where it's a good fit.
jj did not invent the concept of undo or anything. Different tools have different levels of sophistication in their staging and undo features. Vim for example has an undo tree. SQL databases have transactions. Git has the reflog and the ability to search and go back to any recent commit, tagged or not, and start over (outside of some bizarre circumstances that you must explicitly walk into).