Book Image

Git Version Control Cookbook - Second Edition

By : Kenneth Geisshirt, Emanuele Zattin(EUR), Aske Olsson, Rasmus Voss
Book Image

Git Version Control Cookbook - Second Edition

By: Kenneth Geisshirt, Emanuele Zattin(EUR), Aske Olsson, Rasmus Voss

Overview of this book

Git is one of the most popular tools for versioning. With over 100 practical, self-contained tutorials, this updated version of the bestselling Git Version Control Cookbook examines the common pain points and best practices to help you solve problems related to versioning. Each recipe addresses a specific problem and offers a proven, best-practice solution with insights into how it works. You’ll get started by learning about the Git data model and how it stores files, along with gaining insights on how to commit changes to a database. Using simple commands, you’ll also understand how to navigate through the database. Once you have accustomed yourself to the basics, you’ll explore techniques to configure Git with the help of comprehensive examples and configuration targets. Further into the book, you’ll get up to speed with branches and recovery from mistakes. You’ll also discover the features of Git rebase and how to use regular Git to merge other branches. The later chapters will guide you in exploring Git notes and learning to utilize the update, list, and search commands. Toward the concluding chapters, you’ll focus on repository maintenance, patching, and offline sharing. By the end of this book, you’ll have grasped various tips and tricks, and have a practical understanding of best-practice solutions for common problems related to versioning.
Table of Contents (19 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
Index

Adding your first Git note


We will add some extra information to the already released code. If we were doing it in the actual commits, we would see the commit hashes change.

Getting ready

Before we start, we need a repository to work in; you can use the previous clone of jgit, but to get an output from the example that's almost identical, you can clone the jgit repository as follows:

$ git clone https://git.eclipse.org/r/jgit/jgit chapter5
$ cd chapter5 

How to do it...

We start by creating a local branch, notesMessage, tracking origin/stable-3.2. Then, we will try and change the commit message and see that the commit hash changes:

  1. Checkout the branch notesMessage tracking origin/stable-3.2:
$ git checkout -b notesMessage  --track origin/stable-3.2
Branch notesMessage set up to track remote branch stable-3.2 from origin.
Switched to a new branch 'notesMessage'
  1. List the commit hash of the HEAD of your branch:
$ git log -1
commit f839d383e6fbbda26729db7fd57fc917fa47db44
Author: Matthias Sohn <matthias...