feat: initial module 3

module-03-branching/setup.ps1

@@ -0,0 +1,85 @@
+#!/usr/bin/env pwsh
+<#
+.SYNOPSIS
+    Sets up the Module 03 challenge environment for learning about branches.
+
+.DESCRIPTION
+    This script creates a challenge directory with a Git repository that
+    contains a couple of commits on the main branch. Students will create
+    a feature branch and make commits on it.
+#>
+
+Write-Host "`n=== Setting up Module 03 Challenge ===" -ForegroundColor Cyan
+
+# Remove existing challenge directory if it exists
+if (Test-Path "challenge") {
+    Write-Host "Removing existing challenge directory..." -ForegroundColor Yellow
+    Remove-Item -Recurse -Force "challenge"
+}
+
+# Create fresh challenge directory
+Write-Host "Creating challenge directory..." -ForegroundColor Green
+New-Item -ItemType Directory -Path "challenge" | Out-Null
+Set-Location "challenge"
+
+# Initialize Git repository
+Write-Host "Initializing Git repository..." -ForegroundColor Green
+git init | Out-Null
+
+# Configure git for this repository
+git config user.name "Workshop Student"
+git config user.email "student@example.com"
+
+# Commit 1: Initial commit
+Write-Host "Creating initial project..." -ForegroundColor Green
+$mainContent = @"
+# main.py - Main application file
+
+def main():
+    print("Welcome to the Application!")
+    print("This is the main branch")
+
+if __name__ == "__main__":
+    main()
+"@
+Set-Content -Path "main.py" -Value $mainContent
+
+git add .
+git commit -m "Initial commit" | Out-Null
+
+# Commit 2: Add main functionality
+Write-Host "Adding main functionality..." -ForegroundColor Green
+$mainContent = @"
+# main.py - Main application file
+
+def main():
+    print("Welcome to the Application!")
+    print("This is the main branch")
+    run_application()
+
+def run_application():
+    print("Application is running...")
+    print("Ready for new features!")
+
+if __name__ == "__main__":
+    main()
+"@
+Set-Content -Path "main.py" -Value $mainContent
+
+git add .
+git commit -m "Add main functionality" | Out-Null
+
+# Return to module directory
+Set-Location ..
+
+Write-Host "`n=== Setup Complete! ===" -ForegroundColor Green
+Write-Host "`nYour challenge environment is ready in the 'challenge/' directory." -ForegroundColor Cyan
+Write-Host "`nNext steps:" -ForegroundColor Cyan
+Write-Host "  1. cd challenge" -ForegroundColor White
+Write-Host "  2. Create a new branch: git checkout -b feature-login" -ForegroundColor White
+Write-Host "  3. Create login.py and commit it" -ForegroundColor White
+Write-Host "  4. Make another commit on the feature branch" -ForegroundColor White
+Write-Host "  5. Switch back to main: git checkout main" -ForegroundColor White
+Write-Host "  6. Observe that login.py doesn't exist on main!" -ForegroundColor White
+Write-Host "  7. Run '..\verify.ps1' to check your solution" -ForegroundColor White
+Write-Host ""