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Git: Mastering Version Control

You're reading from   Git: Mastering Version Control ...

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Product type Course
Published in Oct 2016
Publisher
ISBN-13 9781787123205
Length 861 pages
Edition 1st Edition
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Authors (4):
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Ferdinando Santacroce Ferdinando Santacroce
Author Profile Icon Ferdinando Santacroce
Ferdinando Santacroce
Aske Olsson Aske Olsson
Author Profile Icon Aske Olsson
Aske Olsson
Jakub Narębski Jakub Narębski
Author Profile Icon Jakub Narębski
Jakub Narębski
Rasmus Voss Rasmus Voss
Author Profile Icon Rasmus Voss
Rasmus Voss
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Toc

Table of Contents (36) Chapters Close

Git: Mastering Version Control
Credits
Preface
1. Getting Started with Git FREE CHAPTER 2. Git Fundamentals – Working Locally 3. Git Fundamentals – Working Remotely 4. Git Fundamentals – Niche Concepts, Configurations, and Commands 5. Obtaining the Most – Good Commits and Workflows 6. Migrating to Git 7. Git Resources 8. Navigating Git 9. Configuration 10. Branching, Merging, and Options 11. Rebase Regularly and Interactively, and Other Use Cases 12. Storing Additional Information in Your Repository 13. Extracting Data from the Repository 14. Enhancing Your Daily Work with Git Hooks, Aliases, and Scripts 15. Recovering from Mistakes 16. Repository Maintenance 17. Patching and Offline Sharing 18. Git Plumbing and Attributes 19. Tips and Tricks 20. Git Basics in Practice 21. Exploring Project History 22. Developing with Git 23. Managing Your Worktree 24. Collaborative Development with Git 25. Advanced Branching Techniques 26. Merging Changes Together 27. Keeping History Clean 28. Managing Subprojects – Building a Living Framework 29. Customizing and Extending Git 30. Git Administration 31. Git Best Practices Bibliography
Index

Finding bugs with git bisect


Git provides a couple of tools to help you debug issues in your projects. These tools can be extremely useful, especially in the case of a software regression, a software bug which makes a feature stop functioning as intended after a certain revision. If you don't know where the bug is, and there have been dozens or hundreds of commits since the last state where you know the code worked, you'll likely turn to git bisect for help.

The bisect command searches semi-automatically step by step through the project history, trying to find the revision that introduced the bug. In each step, it bisects the history into roughly equal parts, and asks whether there is a bug in the dividing commit. It then uses the answer to eliminate one of the two sections, and reduces the size of the revision range where there can be a commit that introduced the bug.

Suppose version 1.14 of your project worked, but the release candidate, 1.15-rc0, for the new version crashes. You go back...

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