Introduction to git and github

Introduction to git and GitHub

Miguel Xochicale, PhD
Zakaria Senousy, PhD
mxochicale/{intro-to-git-and-github}

Overview

Automated Version Control
- What is it? Why shoud I care?
Git and GitHub
Exercises
References

Automated Version Control (AVC)

Automated Version Control (AVC)

A system that automatically manages changes to files, typically in the context of software development.
Keeps track of every modification to the code in a special kind of database.
If a mistake is made, developers can turn back the clock and compare earlier versions of the code to help fix the mistake while minimising disruption to all team members.

AVC: What should I care?

AVC: What should I care?

Automated Version Control

Backup and restore: Changes are stored securely and can be restored at any point.
Collaboration: Multiple people can work on the same project at the same time.
Track changes: You can see who last modified something that might be causing a problem, who introduced an issue, when it was introduced, and more.
Explore alternatives: Safely experiment with new ideas in a branch, without affecting the main project.

Introduction to Git and GitHub

Git: A version control system that lets you manage and keep track of your source code history.
GitHub: A cloud-based hosting service that lets you manage Git repositories.
Benefits:
- Track changes in your code across versions.
- Collaborate with others on projects.
- Backup your work on the cloud.

Git command Basics

Setting up
Creating repo

Installation:
- Download from git-scm.com
Configuration:
- Set your user name: git config --global user.name "Your Name"
- Set your email: git config --global user.email "your.email@example.com"

Initialise a New Repo:
- git init
Cloning an Existing Repo:
- git clone https://github.com/username/repository.git

Git command Basics

Making Changes and Committing
Pulling Updates
Pushing Changes

Track Changes:
- git status
- git add <file>
Commit Changes:
- git commit -m "Commit message"

Using Git Pull:
- git pull origin master
- This command pulls changes from the remote repository and merges them into your local branch.

Connect to Remote Repo:
- git remote add origin https://github.com/username/repository.git
Push Changes:
- git push origin master

Other Useful Git Commands

Branch Management
Investigating Changes
Reorganising Commits

git branch: List, create, or delete branches.
git switch <branch>: Switch branches.

git log: Display commit logs.
git diff: Show file differences not yet staged.

git rebase: Reapply commits on top of another base tip.

Git data transport commands

GitHub workflow

GitHub workflow

Exercises

🥑 How to Make the Best Guacamole?

Create SSH keys
git clone git@github.com:mxochicale/intro-to-git-and-github.git
Raise a new issue with the tamplate How to Make the Best Guacamole?

References