Git - Debuging with git bisect
git-bisect - Use binary search to find the commit that introduced a bug
We will use git bisect <subcommand> <options> to find the commit that
make our code wrong.
The idea of this command is that:
- We start with current version (1) - which contains the error.
- Mark a old version (2) - which everything works fine.
- Use binary search to get middle commit between (1) and (2), check this commit
to detect it is
badorgood - Repeat
HOW
git bisect start
# Mark current version is bad (wrong)
git bisect bad
# Mark a commit/version is good (our code is ok)
git bisect good <goodcommit>And repeat above process. If issue still exists?
- Yes:
git bisect bad - No:
git bisect good
Result:
<abcdef> is the first bad commit