GitHub Foundations

Overview

The GitHub Foundations certification validates knowledge of Git, GitHub collaboration workflows, GitHub Actions, and repository management. Completed March 2025.

---

Git Core Concepts

git init / git clone <url>
git add . && git commit -m "message"
git push origin main / git pull
git branch feature/x && git checkout feature/x
git merge feature/x / git rebase main
git stash / git stash pop
git log --oneline --graph
git reset --soft HEAD~1   # undo commit, keep changes staged
git reset --hard HEAD~1   # undo commit, discard changes

Branching Strategies

• GitHub Flow — main + short-lived feature branches + PRs.
• Git Flow — main + develop + feature/release/hotfix branches.
• Trunk-Based — commit directly to main with feature flags.

---

GitHub Features

Feature	Purpose
Issues	Track bugs, features, tasks
Pull Requests	Code review + merge workflow
Actions	CI/CD automation via YAML workflows
Projects	Kanban/table project management
Packages	Publish npm, Docker, Maven packages
Pages	Static site hosting
Codespaces	Cloud dev environments

---

GitHub Actions

name: CI
on:
  push:
    branches: [main]
  pull_request:

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-java@v4
        with:
          java-version: '17'
      - run: mvn test

---

Cheat Sheet

Branches: git branch | checkout | merge | rebase
Remote: git push | pull | fetch | clone
Undo: reset --soft | --hard | revert | stash
GitHub: Issues | PRs | Actions | Projects | Packages