github.md

GitHub Basics

How to work with Git and GitHub...

What is Git?

• Distributed version control system
• Free and open source
• Works for small and huge projects
• Supports local repositories and servers
• Want to learn all the details? Free, online book...
• We will use GitHub

GitHub

Homework: Create a GitHub profile if you do not already have one

• Use an alias if you don't want you real name online
  • Let me know your alias via email
• Public repositories via GitHub Classroom for homeworks
  • You commit the code
  • I add comments and issues
• Private repositories for exams

How to Use Git?

• Download and install Git...
• Git command line
  • Read chapter 2 Git Basics of Git book...
• Visual Git tools; examples:
  • Git Extensions
  • GitHub Desktop
  • Sourcetree
  • Git support in VSCode

What You Have to Know

• Initialize a local Git repository
• Tracking changes
• Working with remotes
• Setup and configure GitHub account

What You Have to Know - Git CLI

Command	Description
git init	Create an empty Git repository or reinitialize an existing one
git clone	Clone a repository into a new directory
git pull	Fetch from and integrate with another repository or a local branch
git add	Add file contents to the index
git commit	Record changes to the repository
git log	Show commit logs
git push	Update remote refs along with associated objects
git status	Show the working tree status
git config	Get and set repository or global options

What You Should Know

• Basics about branching
  • Online learning tool for branching
• GitHub flow

What You Should Know - Git CLI

Command	Description
git branch	List, create, or delete branches
git checkout	Switch branches or restore working tree files
git merge	Join two or more development histories together
git stash	Stash the changes in a dirty working directory away
git remote	Manage set of tracked repositories
git reset	Reset current HEAD to the specified state

Exercise

• Git Basics exercise
• Follow the GitHub Flow to add your lightning talk subject to Online Course Calendar
  • Fork the project.
  • Create a topic branch from master.
  • Add your subject to course calendar.
  • Commit your changes to your topic branch.
  • Push this branch to your GitHub project.
  • Open a Pull Request on GitHub.
  • Discuss, and optionally continue committing.
  • The project owner merges the Pull Request.