1. Introduction

1.1 Goal of the Tutorial

This tutorial aims to guide you through the process of managing versioning and implementing rollback strategies. We will cover different version control systems and strategies to revert changes if something goes wrong.

1.2 Learning Outcomes

By the end of this tutorial, you will learn:
- The importance of versioning in development
- How to use Git as a version control system
- How to revert changes using rollback strategies

1.3 Prerequisites

Basic knowledge of coding is required, and familiarity with Git will be beneficial but not necessary.

2. Step-by-Step Guide

2.1 Version Control

Version control is a system that records changes to a file or set of files over time so that you can recall specific versions later. We will use Git in this tutorial.

2.1.1 Installing Git

You can download Git from here. Choose the version that suits your operating system.

2.1.2 Git Basics

Once Git is installed, you can create a new repository by navigating to your project directory in your terminal and typing the following command:

git init

This initializes a new Git repository in your project directory.

2.2 Rollback Strategies

Sometimes, things go wrong. You might have introduced a bug in your latest commit, and you need to revert changes. Git provides several ways to do this.

2.2.1 Git Checkout

If you want to go back to a previous commit, you can use the git checkout command followed by the commit hash.

git checkout COMMIT_HASH

2.2.2 Git Revert

If you want to create a new commit that undoes all the changes made in a previous commit, you can use the git revert command.

git revert COMMIT_HASH

3. Code Examples

3.1 Creating a new Git repository

# Navigate to your project directory
cd /path/to/your/project

# Initialize a new Git repository
git init

This will create a new Git repository in your project directory.

3.2 Reverting to a previous commit

# Go back to a previous commit
git checkout COMMIT_HASH

Replace COMMIT_HASH with the hash of the commit you want to go back to.

3.3 Creating a new commit that undoes a previous commit

# Create a new commit that undoes a previous commit
git revert COMMIT_HASH

This will create a new commit that undoes all the changes made in the commit with the hash COMMIT_HASH.

4. Summary

In this tutorial, you learned about version control, how to manage versions using Git, and how to revert changes using different rollback strategies. The next step in learning would be to explore branching and merging in Git. You can find more resources on Git here.

5. Practice Exercises

1. Create a new Git repository and make several commits. Then, try to go back to a previous commit using git checkout.

2. In the same repository, create a new commit that undoes a previous commit using git revert.

Remember to replace COMMIT_HASH with the hash of the commit you want to act on.

Solutions to these exercises will depend on the specific commits made in your repository, but they should involve the correct use of the git checkout and git revert commands. For further practice, try to experiment with different rollback strategies in Git.