refactor: move modules into levels

01_essentials/06-cherry-pick/setup.ps1

@@ -0,0 +1,175 @@
+#!/usr/bin/env pwsh
+
+<#
+.SYNOPSIS
+    Sets up the cherry-pick challenge environment.
+
+.DESCRIPTION
+    Creates a Git repository with a development branch containing both
+    bug fixes and experimental features. Students must cherry-pick only
+    the bug fixes to the main branch.
+#>
+
+# Remove existing challenge directory if present
+if (Test-Path "challenge") {
+    Write-Host "Removing existing challenge directory..." -ForegroundColor Yellow
+    Remove-Item -Path "challenge" -Recurse -Force
+}
+
+# Create challenge directory
+Write-Host "Creating challenge environment..." -ForegroundColor Cyan
+New-Item -ItemType Directory -Path "challenge" | Out-Null
+Set-Location "challenge"
+
+# Initialize git repository
+git init | Out-Null
+git config user.name "Workshop User" | Out-Null
+git config user.email "user@workshop.local" | Out-Null
+
+# Create initial commits on main branch
+$app = @"
+class App:
+    def __init__(self):
+        self.version = '1.0.0'
+
+    def start(self):
+        print('App started')
+"@
+
+Set-Content -Path "app.py" -Value $app
+git add app.py
+git commit -m "Initial app implementation" | Out-Null
+
+$readme = @"
+# Application
+
+Version 1.0.0
+"@
+
+Set-Content -Path "README.md" -Value $readme
+git add README.md
+git commit -m "Add README" | Out-Null
+
+# Create development branch
+git checkout -b development | Out-Null
+
+# Commit 1: Experimental feature (should NOT be cherry-picked)
+$appWithExperimental = @"
+class App:
+    def __init__(self):
+        self.version = '1.0.0'
+        self.experimental_mode = False
+
+    def start(self):
+        print('App started')
+        if self.experimental_mode:
+            self.enable_experimental_features()
+
+    def enable_experimental_features(self):
+        print('Experimental features enabled')
+"@
+
+Set-Content -Path "app.py" -Value $appWithExperimental
+git add app.py
+git commit -m "Add experimental AI features" | Out-Null
+
+# Commit 2: Security bug fix (SHOULD be cherry-picked)
+$security = @"
+import re
+
+class Security:
+    @staticmethod
+    def sanitize_input(input_str):
+        # Remove potential XSS attacks
+        return re.sub(r'[<>]', '', input_str)
+
+    @staticmethod
+    def validate_token(token):
+        if not token or len(token) < 32:
+            raise ValueError('Invalid security token')
+        return True
+"@
+
+Set-Content -Path "security.py" -Value $security
+git add security.py
+git commit -m "Fix security vulnerability in input validation" | Out-Null
+
+# Commit 3: Another experimental feature (should NOT be cherry-picked)
+$appWithMoreExperimental = @"
+class App:
+    def __init__(self):
+        self.version = '1.0.0'
+        self.experimental_mode = False
+        self.beta_features = []
+
+    def start(self):
+        print('App started')
+        if self.experimental_mode:
+            self.enable_experimental_features()
+
+    def enable_experimental_features(self):
+        print('Experimental features enabled')
+
+    def add_beta_feature(self, feature):
+        self.beta_features.append(feature)
+"@
+
+Set-Content -Path "app.py" -Value $appWithMoreExperimental
+git add app.py
+git commit -m "Add beta features framework" | Out-Null
+
+# Commit 4: Performance bug fix (SHOULD be cherry-picked)
+$appWithPerformance = @"
+class App:
+    def __init__(self):
+        self.version = '1.0.0'
+        self.experimental_mode = False
+        self.beta_features = []
+        self.cache = {}
+
+    def start(self):
+        print('App started')
+        if self.experimental_mode:
+            self.enable_experimental_features()
+
+    def enable_experimental_features(self):
+        print('Experimental features enabled')
+
+    def add_beta_feature(self, feature):
+        self.beta_features.append(feature)
+
+    def get_data(self, key):
+        # Use cache to improve performance
+        if key in self.cache:
+            return self.cache[key]
+        data = self.fetch_data(key)
+        self.cache[key] = data
+        return data
+
+    def fetch_data(self, key):
+        # Simulate data fetching
+        return {'key': key, 'value': 'data'}
+"@
+
+Set-Content -Path "app.py" -Value $appWithPerformance
+git add app.py
+git commit -m "Fix performance issue with data caching" | Out-Null
+
+# Return to module directory
+Set-Location ..
+
+Write-Host "`n========================================" -ForegroundColor Green
+Write-Host "Challenge environment created!" -ForegroundColor Green
+Write-Host "========================================" -ForegroundColor Green
+Write-Host "`nYou are on the 'development' branch with multiple commits:" -ForegroundColor Cyan
+Write-Host "- Experimental features (not ready for production)" -ForegroundColor Yellow
+Write-Host "- Critical bug fixes (needed in production NOW)" -ForegroundColor Green
+Write-Host "`nYour task:" -ForegroundColor Yellow
+Write-Host "1. Navigate to the challenge directory: cd challenge" -ForegroundColor White
+Write-Host "2. View the development branch commits: git log --oneline" -ForegroundColor White
+Write-Host "3. Identify which commits are bug fixes (look for 'Fix' in messages)" -ForegroundColor White
+Write-Host "4. Switch to main branch: git checkout main" -ForegroundColor White
+Write-Host "5. Cherry-pick ONLY the bug fix commits to main" -ForegroundColor White
+Write-Host "6. Do NOT bring the experimental features to main" -ForegroundColor White
+Write-Host "`nHint: Look for commits mentioning 'security' and 'performance' fixes" -ForegroundColor Cyan
+Write-Host "Run '../verify.ps1' from the challenge directory to check your solution.`n" -ForegroundColor Cyan