Bisect
Binary search through commit history to find the commit that introduced a bug. This is incredibly efficient - even with 1000 commits, you’ll find the culprit in about 10 steps.Basic Workflow
Commands
Example: Finding a Regression
Viewing Bisect Progress
Skip Untestable Commits
Sometimes a commit can’t be tested (e.g., doesn’t compile):Tips for Effective Bisecting
Automate with a test script
Automate with a test script
Create a script that returns 0 for good, 1 for bad:
Choose good boundaries
Choose good boundaries
Pick a “good” commit you’re confident about (e.g., a release tag) to minimize the search space.
Skip broken commits
Skip broken commits
Don’t waste time on commits that won’t compile - just
wit bisect skip.