git-sim: Visualize Git Commands

git-sim: Visualize Git Commands

Are you afraid to do a git rebase? Or a git reset? Or any other git command? Don't worry, because with git-sim you'll be able to see before you do it what's going to happen so you can make the right decision.

This notebook has been automatically translated to make it accessible to more people, please let me know if you see any typos.

Installationlink image 4

To install git-sim we first need to install manim, which is a python library for making animations. For this we can install it with pip:

pip install manim

or with conda

conda install -c conda-forge manim

Once manim is installed we can install git-sim with pip:

pip install git-sim

Uselink image 5

Now that we have it installed we go to a repository and test any git command changing git for git-sim. For example, if in a repository of mine I do a git-sim reset --hard HEAD~1 it will show me an animation of how the rebase would look like before doing it.

git-sim

As we can see it is showing me that if I do git reset --hard HEAD~1 it would go from commit ae757a8 to commit 3754c64 and that it would also remove the changes in the files indicated in Changes deleted from.

Frequently asked questions

What dependencies do I need before using git-sim, and in what order?

git-sim depends on manim, the Python animation library, so you need to install that first: pip install manim (or conda install -c conda-forge manim if you're on Conda), and only then run pip install git-sim. If you install git-sim before manim is in place, animation rendering will fail.

How do I preview what a git reset --hard HEAD~1 would do before actually running it?

Inside your repo, just swap git for git-sim in the same command: git-sim reset --hard HEAD~1. This renders an animation (via manim) showing the before/after state, e.g. moving from commit ae757a8 to commit 3754c64, and explicitly lists which files would be lost under "Changes deleted from" — all without touching your actual repository.

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