112 lines
3.6 KiB
Markdown
112 lines
3.6 KiB
Markdown
# Module 01: Git Basics
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## Learning Objectives
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- Understand what a git repository is
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- Learn the basic git workflow: modify → stage → commit
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- Use `git status` to check repository state
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- Use `git add` to stage changes
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- Use `git commit` to save changes
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## Challenge
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In this challenge, you'll learn the fundamental git workflow.
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### Setup
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Run the setup script to prepare the challenge:
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```powershell
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.\setup.ps1
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```
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This will create a directory called `challenge` with some files that need to be committed.
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### Your Task
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Your goal is to commit both `welcome.txt` and `instructions.txt` to a git repository. Here's a suggested approach:
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1. Navigate into the `challenge` directory: `cd challenge`
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2. **Initialize a new git repository**: `git init` (this is your first step!)
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3. Check the status of your repository: `git status`
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4. Stage the files you want to commit: `git add welcome.txt` (or `git add .` to stage all files)
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5. Create a commit: `git commit -m "Your commit message"`
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6. Verify both files are committed: `git ls-tree -r HEAD --name-only`
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**Important Notes**:
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- The challenge directory is NOT a git repository until you run `git init`. This is intentional - you're learning to start from scratch!
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- You can commit both files together in one commit, or separately in multiple commits - it's up to you!
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- The verification script checks that both files are committed, not the specific commit messages or order
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### Key Concepts
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- **Repository**: A directory tracked by git, containing your project files and their history
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- **Working Directory**: The files you see and edit
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- **Staging Area (Index)**: A preparation area for your next commit
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- **Commit**: A snapshot of your staged changes
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### Useful Commands
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```bash
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git init # Initialize a new git repository
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git status # Show the working tree status
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git add <file> # Stage a specific file for commit
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git add . # Stage all files in current directory
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git commit -m "<message>" # Create a commit with a message
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git ls-tree -r HEAD --name-only # List all files in the latest commit
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git log # View commit history
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```
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### Verification
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Once you think you've completed the challenge, run the verification script.
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**Important:** Run this from the **module directory**, not the challenge directory.
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```powershell
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# If you're in the challenge directory, go back up:
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cd ..
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# Then verify:
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.\verify.ps1
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```
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This will check if you've successfully completed all the steps.
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### Troubleshooting
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**Error: "fatal: unable to auto-detect email address"**
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This means Git doesn't know who you are yet. You need to configure your name and email:
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```powershell
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git config user.name "Your Name"
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git config user.email "your.email@example.com"
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```
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Then try your commit again. For more details, see the "Requirements" section in the main README.md.
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**Error: "Not a git repository"**
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Make sure you ran `git init` in the challenge directory. This creates a hidden `.git` folder that tracks your project.
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**Can't find the challenge directory?**
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Make sure you ran `.\setup.ps1` first from the module directory. This creates the `challenge/` folder.
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**Where am I?**
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Use `pwd` (Print Working Directory) to see your current location:
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- If you're in something like `.../module-01-basics/challenge`, you're in the challenge directory
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- If you're in something like `.../module-01-basics`, you're in the module directory
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### Need to Start Over?
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If you want to reset the challenge and start fresh, run:
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```powershell
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.\reset.ps1
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```
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This will remove your challenge directory and set up a new one.
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