🎓 Git & GitHub — Master Coursework

From Absolute Beginner to Enterprise DevOps Mastery

A university-grade, production-tested curriculum covering version control internals, DAG commit graphs, advanced collaboration workflows, automated CI/CD pipelines, GitOps, secret scanning, and enterprise engineering standards.

📚 Explore Modules • 🗺️ 6-Month Roadmap • 📋 Cheat Sheet • 📘 Glossary • 🏆 Capstone Project • 🚀 Getting Started

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📋 Course Overview

This repository houses a comprehensive, 30-module curriculum engineered to transition software engineers, DevOps practitioners, and computer science students from basic command-line usage to deep architectural mastery of Git and the GitHub ecosystem.

Key Highlights

Feature	Details
Total Modules	30 self-contained modules with theory, CLI commands, and exercises
Progressive Levels	🟢 Beginner → 🟡 Intermediate → 🔵 Advanced → 🟣 GitHub CI/CD → ⚫ DevOps Mastery
Paced Duration	~6 Months structured learning (or self-paced accelerated track)
Visual Architecture	Over 200+ Mermaid diagrams (sequence diagrams, flowcharts, state machines, and DAGs)
Deep Internals	Content-addressable storage, SHA hashing, object storage formats (blob, tree, commit, tag), and plumbing commands
Enterprise Practices	Branch Protection, CODEOWNERS, GitHub Actions CI/CD matrix builds, Dependabot, GitOps, and Monorepo scaling
Capstone Project	Full-Stack collaborative repository build with a rigorous 100-point rubric

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🗺️ 6-Month Learning Roadmap

flowchart TD
    subgraph PhaseA["🟢 Phase A: Git Foundations (Month 1)"]
        M01["01: Intro to VCS"] --> M02["02: Install & Config"]
        M02 --> M03["03: First Repo"]
        M03 --> M04["04: Staging & History"]
        M04 --> M05["05: Branching Basics"]
        M05 --> M06["06: Merging & Conflicts"]
    end

    subgraph PhaseB["🟡 Phase B: Intermediate Git & Collaboration (Month 2)"]
        M07["07: Remote Repos & GitHub"] --> M08["08: Push, Pull & Fetch"]
        M08 --> M09["09: Rebasing & Cherry-Pick"]
        M09 --> M10["10: Stashing & Cleaning"]
        M10 --> M11["11: Tags & SemVer"]
        M11 --> M12["12: Diff, Blame & Bisect"]
    end

    subgraph PhaseC["🔵 Phase C: Advanced Git & Internals (Month 3)"]
        M13["13: Objects, SHA & DAG"] --> M14["14: Reset, Revert & Reflog"]
        M14 --> M15["15: Interactive Rebase"]
        M15 --> M16["16: Hooks & Automation"]
        M16 --> M17["17: Submodules & Subtrees"]
        M17 --> M18["18: Advanced Merge Strategies"]
    end

    subgraph PhaseD["🟣 Phase D: GitHub Deep-Dive & CI/CD (Month 4)"]
        M19["19: Issues & Project Boards"] --> M20["20: PRs & Code Reviews"]
        M20 --> M21["21: Branch Protection & CODEOWNERS"]
        M21 --> M22["22: Actions CI/CD Fundamentals"]
        M22 --> M23["23: Actions Advanced Workflows"]
        M23 --> M24["24: Security & Dependabot"]
    end

    subgraph PhaseE["⚫ Phase E: DevOps & Capstone (Months 5 & 6)"]
        M25["25: Git Flow & Branching"] --> M26["26: Open-Source Guide"]
        M26 --> M27["27: Monorepos & Scaling"]
        M27 --> M28["28: Repo Best Practices"]
        M28 --> M29["29: Git in Production & GitOps"]
        M29 --> M30["30: Capstone Project 🏆"]
    end

    PhaseA --> PhaseB --> PhaseC --> PhaseD --> PhaseE

    style PhaseA fill:#e8f5e9,stroke:#4caf50,stroke-width:2px
    style PhaseB fill:#fffde7,stroke:#fbc02d,stroke-width:2px
    style PhaseC fill:#e3f2fd,stroke:#1e88e5,stroke-width:2px
    style PhaseD fill:#f3e5f5,stroke:#8e24aa,stroke-width:2px
    style PhaseE fill:#eceff1,stroke:#37474f,stroke-width:2px
    style M30 fill:#ffd54f,stroke:#ff8f00,stroke-width:3px

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📚 Curriculum Index

🟢 Phase A — Git Foundations (Beginner)

Master the foundational mental models, the 3 areas of Git, local branch operations, and conflict resolution.

#	Module	Core Topics	Est. Time	Status
01	Introduction to Version Control	VCS Evolution, Centralized vs Distributed, Snapshot model, 3 Areas of Git	2.0 hrs
02	Git Installation & Configuration	Multi-OS Setup, Config Hierarchy, SSH Authentication, GPG Signing	1.5 hrs
03	Your First Repository	git init, .git Anatomy, Object Directory, git clone Mechanics	2.0 hrs
04	Staging, Committing & History	Index Mechanics, Atomic Commits, git log Filtering, .gitignore Rules	3.0 hrs
05	Branching Basics	Pointer Mechanics, HEAD Dereferencing, switch vs checkout, Detached HEAD	2.5 hrs
06	Merging & Conflict Resolution	Fast-Forward, 3-Way Merge, Conflict Markers, git mergetool Integration	3.0 hrs

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🟡 Phase B — Intermediate Git & Collaboration

Learn remote collaboration patterns, linear rebasing, stash internals, and automated debugging with bisect.

#	Module	Core Topics	Est. Time	Status
07	Remote Repositories & GitHub Basics	Remotes, origin Architecture, HTTPS vs SSH, GitHub Web UI Tour	3.0 hrs
08	Collaboration — Push, Pull, Fetch	Upstream Tracking, git fetch vs git pull, Fast-Forward Pull Strategies	3.0 hrs
09	Rebasing & Cherry-Picking	Linear History, Base Commits, Golden Rule of Rebasing, Cherry-Picking	3.0 hrs
10	Stashing & Cleaning	Stash Stack LIFO Mechanics, Untracked Stashes, Git Worktrees, git clean	2.0 hrs
11	Tags, Releases & Semantic Versioning	Lightweight vs Annotated Tags, Semantic Versioning (MAJOR.MINOR.PATCH), Releases	2.5 hrs
12	Git Diff, Blame & Bisect	Revision Comparison, Line History with blame, Binary Search Debugging (bisect)	2.5 hrs

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🔵 Phase C — Advanced Git & Internals

Unpack Git's low-level engine: content-addressable storage, DAG graphs, history rewriting, and hooks.

#	Module	Core Topics	Est. Time	Status
13	Git Internals — Objects, SHA, DAG	Blobs, Trees, Commits, Tags, SHA-1 Hashing, Plumbing Commands (cat-file)	4.0 hrs
14	Reset, Revert & Reflog	Soft vs Mixed vs Hard Resets, Safe History Reverts, Disaster Recovery via Reflog	3.0 hrs
15	Interactive Rebase & History Rewriting	Squash, Fixup, Reorder, Drop, Edit Commits, Splitting Commits, Filter-Repo	3.0 hrs
16	Git Hooks & Automation	Client vs Server Hooks, Husky Integration, lint-staged, Commitlint Standards	3.0 hrs
17	Submodules & Subtrees	Nested Repositories, Submodule Pointers, Updating & Cloning, Git Subtrees	3.0 hrs
18	Advanced Merge Strategies	Recursive/Ort Strategies, Ours vs Theirs, Octopus Merges, git rerere	2.5 hrs

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🟣 Phase D — GitHub Deep-Dive & CI/CD

Professional GitHub collaboration, branch governance, GitHub Actions automation, and security scanning.

#	Module	Core Topics	Est. Time	Status
19	GitHub Issues, Projects & Wikis	Issue Templates, Milestones, Project Kanban Boards, Team Collaboration	3.0 hrs
20	Pull Requests & Code Reviews	PR Lifecycle, Review Etiquette, Inline Suggestions, Draft PRs, Merge Types	3.0 hrs
21	Branch Protection & CODEOWNERS	Required Reviews, Status Checks, Linear History Enforcement, CODEOWNERS Rules	2.5 hrs
22	GitHub Actions — CI/CD Fundamentals	Workflows, Runners, Events, Jobs, Steps, Secrets, Automated Testing Pipeline	4.0 hrs
23	GitHub Actions — Advanced Workflows	Matrix Strategies, Dependency Caching, Reusable Workflows, Composite Actions	4.0 hrs
24	GitHub Security — Dependabot & Secrets	Secret Scanning, Push Protection, Dependabot Vulnerability Alerts, CodeQL	3.0 hrs

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⚫ Phase E — Enterprise DevOps, Scaling & Capstone

Deploy industry branching models, open-source standards, Monorepos, GitOps pipelines, and the final Capstone.

#	Module	Core Topics	Est. Time	Status
25	Branching Strategies & Git Flow	Git Flow, GitHub Flow, GitLab Flow, Trunk-Based Development Comparison	3.0 hrs
26	Open-Source Contribution Guide	Forking, Upstream Sync, Conventional Commits, DCO / CLA Sign-Offs	3.0 hrs
27	Monorepos & Scaling Git	Monorepos vs Polyrepos, Git LFS, Sparse-Checkout, Partial Clones, Scalar	3.0 hrs
28	Repository Best Practices	README Standards, LICENSE Choice, CONTRIBUTING, SECURITY.md, Hygiene	2.5 hrs
29	Git in Production — DevOps Integration	GitOps Fundamentals (ArgoCD/Flux), Deployment Tags, Release Pipelines	4.0 hrs
30	Capstone Project — Task Manager	End-to-End Enterprise Repository Build & Audit (100-Point Grading Rubric)	8–12 hrs

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🧰 Reference Toolkit & Resources

Document	Description
📋 Master Cheat Sheet	Comprehensive command reference categorized from setup to advanced plumbing
📘 A–Z Glossary	Concise definitions of 60+ fundamental and enterprise Git/GitHub concepts

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🚀 Getting Started

1. Clone the Coursework

git clone https://github.com/<your-username>/Git_Coursework.git
cd Git_Coursework

2. Follow the Recommended Study Methodology

flowchart LR
    A["1. Read Module Theory"] --> B["2. Run Every Command"]
    B --> C["3. Solve Exercises"]
    C --> D["4. Inspect Git Internals"]
    D --> E["5. Proceed to Next Module"]

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1. Sequential Order: Start with Module 01 and progress sequentially. Each module assumes knowledge of preceding topics.
2. Hands-On Practice: Do not simply read the documentation. Create a test repository on your local machine and execute every single command.
3. Inspect the Internals: When exploring Phase C, use plumbing commands (git cat-file -p, git ls-tree) to verify object storage on your own filesystem.
4. Complete the Capstone: Build the Module 30 Capstone Project to showcase your complete Git & GitHub proficiency on your resume or portfolio.

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🏆 Capstone Project Highlights

Module 30 challenges you to build a multi-package, full-stack application repository implementing the complete software development lifecycle:

• Repository Hygiene: Standardized .gitignore, CONTRIBUTING.md, issue & PR templates.
• Branching Architecture: Enforced Git Flow or Trunk-Based development with branch protection rules.
• Git Hooks: Pre-commit linting and commit-message validation with Husky.
• CI/CD Automation: GitHub Actions workflow testing matrix, caching dependencies, and automating container builds.
• Disaster Recovery: Simulated merge conflicts, history rebasing, and reflog bug fixes.

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🔗 Official Documentation References

• Git Official Documentation
• Pro Git Book (Scott Chacon & Ben Straub)
• GitHub Documentation
• GitHub Actions Documentation
• GitHub CLI Manual
• Conventional Commits Specification
• Semantic Versioning 2.0.0

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🤝 Contributing

Contributions, feedback, and enhancements are always welcome!

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes following Conventional Commits (git commit -m 'feat: add interactive diagram for rebase')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

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📄 License

This coursework is open-source and released under the MIT License.

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If you find this coursework helpful, please consider giving it a ⭐ on GitHub!}