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Modern Git Commands and Features You Should Be Using (martinheinz.dev)

submitted 8 months ago by lysdexic to c/git

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[–] [email protected] 13 points 8 months ago* (last edited 8 months ago) (2 children)

Git bisect

Is goddamn amazing! I had a very large multi-branch project that somewhere somehow had some crashing bug. Instead of searching through 5 or so branches with 20 something large commits for each, I bisected like 7 times and it told me exactly where to bug was introduced.

Highly recommended

[–] lysdexic 8 points 8 months ago (1 children)

Highly recommended

I agree. Once we get a hang of the value that bisect brings, one unintended consequence is that we start to value atomic commits a whole lot more. There is nothing more annoying than bisecting a bug and suddenly stumbling upon a commit that does it all: updates dependencies, touches everything under the sun, does cleanup commits for unrelated files, etc. Yuck.

[–] [email protected] 2 points 8 months ago

Exactly! My case was such a case actually. But it further shows that bisect is a great tool that benefits from good practice.

[–] [email protected] 5 points 8 months ago (1 children)

I love git bisect for complex regressions! If I don't immediately know where a bug is, I write a regression test and then bisect to find where it was introduced. Knowing exactly where the bug was introduced and being able to look at the diff almost always speeds up finding the bug.

[–] robinm 5 points 8 months ago

For those who don't know (I assume you do), you can git bisect run some_command and git will automatically run git bisect until it finds the falty commit. It's amazing.