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

Extracting the top contributor


Git has a few built-in stats you can get instantaneously. The git log command has different options, such as --numstat, that will show the number of files added and lines deleted for each file since each commit. However, for finding the top committer in the repository, we can just use the git shortlog command.

 

Getting ready

For all the examples throughout the book, we are using the jgitrepository; you can either clone it or go to one of the clones you might already have.

Clone the jgit repository as follows:

$ git clone https://git.eclipse.org/r/jgit/jgit chapter6 
$ cd chapter6 

How to do it...

The shortlog Git command is very simple and does not have a lot of options or flags to use with it. It can show the log but in a boiled-down version, and then it can summarize it for us as follows:

  1.  Start by showing the last five commits with shortlog. We can use -5 to limit the amount of output:
$ git shortlog -5 
Jonathan Nieder (1): 
  Update commons-compress to 1.6 
 ...