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
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?
git bisect bad
git bisect good
<abcdef> is the first bad commit