Cross-Platform Script Generation Task

Objective

Generate native installation scripts for all target platforms from a unified configuration, ensuring idempotent, atomic, and user-friendly deployment experiences.

Task Overview

This task transforms the project analysis and manifest configuration into platform-specific installation scripts that handle dependency installation, configuration setup, and service deployment with comprehensive error handling and user interaction.

Process Steps

1. Template Selection & Preparation

Purpose: Choose and prepare appropriate templates for each target platform

Actions:

• Analyze target platform specifications from manifest

• Select appropriate script template (Bash, PowerShell, Batch, etc.)

• Consider architecture-specific requirements (x64, ARM64, etc.)

• Load platform-specific command libraries and utilities

• Prepare template rendering environment with required variables

• Validate template compatibility with target platform

Output: Selected and prepared templates for each platform

2. Configuration Data Processing

Purpose: Process and validate configuration data for script injection

Actions:

• Load and validate isaac_manifest.json configuration

• Process configurable parameters and their validation rules

• Prepare platform-specific dependency installation commands

• Generate interactive menu structures for user configuration

• Process credential and secret management requirements

• Validate configuration data completeness and consistency

Output: Processed configuration data ready for template injection

3. Script Rendering & Generation

Purpose: Generate final executable scripts from templates and configuration

Actions:

• Inject configuration data into selected templates

• Generate platform-specific dependency installation sequences

• Create interactive CLI menus for runtime configuration

• Implement error handling and rollback mechanisms

• Add validation checks and system requirements verification

• Generate installation progress indicators and user feedback

Output: Complete, executable installation scripts for each platform

4. Script Validation & Testing

Purpose: Ensure generated scripts are syntactically correct and functionally sound

Actions:

• Perform syntax validation for each scripting language

• Validate command sequences and logic flow

• Test interactive menu functionality and input validation

• Verify error handling and rollback mechanisms

• Check platform-specific command compatibility

• Validate file permissions and execution requirements

Output: Validated scripts with quality assurance reports

5. Documentation & Packaging

Purpose: Create comprehensive documentation and organize scripts for distribution

Actions:

• Generate installation guides for each platform

• Create troubleshooting documentation with common issues

• Package scripts with appropriate file permissions

• Generate checksums and integrity verification files

• Create distribution directory structure

• Prepare README files with usage instructions

Output: Complete installation packages with documentation

Script Architecture Components

1. Pre-flight Checks

# System requirements validation
check_system_requirements() {
    echo "Checking system requirements..."
    
    # Check operating system
    if [[ "$OSTYPE" != "linux-gnu"* ]]; then
        echo "Error: This installer requires Linux"
        exit 1
    fi
    
    # Check architecture
    ARCH=$(uname -m)
    if [[ "$ARCH" != "x86_64" ]]; then
        echo "Warning: Untested architecture: $ARCH"
    fi
    
    # Check required tools
    command -v curl >/dev/null 2>&1 || { echo "Error: curl is required"; exit 1; }
    command -v tar >/dev/null 2>&1 || { echo "Error: tar is required"; exit 1; }
}

2. Interactive Configuration

# Interactive parameter collection
collect_configuration() {
    echo "=== Configuration Setup ==="
    
    # Port configuration
    read -p "Enter server port [3000]: " PORT
    PORT=${PORT:-3000}
    
    # Database selection
    echo "Select database type:"
    echo "1) PostgreSQL"
    echo "2) MySQL"
    echo "3) SQLite"
    read -p "Choice [1]: " DB_CHOICE
    DB_CHOICE=${DB_CHOICE:-1}
    
    case $DB_CHOICE in
        1) DATABASE_TYPE="postgresql" ;;
        2) DATABASE_TYPE="mysql" ;;
        3) DATABASE_TYPE="sqlite" ;;
        *) echo "Invalid choice"; exit 1 ;;
    esac
}

3. Dependency Installation

# Platform-specific dependency installation
install_dependencies() {
    echo "Installing dependencies..."
    
    # Update package manager
    if command -v apt-get >/dev/null 2>&1; then
        sudo apt-get update
        sudo apt-get install -y nodejs npm
    elif command -v yum >/dev/null 2>&1; then
        sudo yum install -y nodejs npm
    elif command -v pacman >/dev/null 2>&1; then
        sudo pacman -S nodejs npm
    else
        echo "Error: Unsupported package manager"
        exit 1
    fi
    
    # Install application dependencies
    npm install --production
}

4. Service Configuration

# Service setup and configuration
configure_service() {
    echo "Configuring service..."
    
    # Create configuration file
    cat > config/production.json << EOF
{
    "port": $PORT,
    "database": {
        "type": "$DATABASE_TYPE",
        "host": "$DB_HOST",
        "port": $DB_PORT
    }
}
EOF
    
    # Set file permissions
    chmod 600 config/production.json
    
    # Create systemd service file
    sudo tee /etc/systemd/system/myapp.service > /dev/null << EOF
[Unit]
Description=My Application
After=network.target

[Service]
Type=simple
User=myapp
WorkingDirectory=/opt/myapp
ExecStart=/usr/bin/node server.js
Restart=always

[Install]
WantedBy=multi-user.target
EOF
    
    # Enable and start service
    sudo systemctl daemon-reload
    sudo systemctl enable myapp
    sudo systemctl start myapp
}

5. Validation & Verification

# Post-installation validation
validate_installation() {
    echo "Validating installation..."
    
    # Check service status
    if systemctl is-active --quiet myapp; then
        echo "✓ Service is running"
    else
        echo "✗ Service failed to start"
        return 1
    fi
    
    # Check port accessibility
    if curl -f http://localhost:$PORT/health >/dev/null 2>&1; then
        echo "✓ Application is responding"
    else
        echo "✗ Application is not responding"
        return 1
    fi
    
    echo "Installation completed successfully!"
}

Platform-Specific Implementations

Windows PowerShell

# Windows-specific implementation
function Install-Dependencies {
    Write-Host "Installing dependencies..."
    
    # Check for Chocolatey
    if (!(Get-Command choco -ErrorAction SilentlyContinue)) {
        Write-Host "Installing Chocolatey..."
        Set-ExecutionPolicy Bypass -Scope Process -Force
        [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072
        iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))
    }
    
    # Install Node.js
    choco install nodejs -y
    
    # Install application dependencies
    npm install --production
}

macOS Bash

# macOS-specific implementation
install_dependencies_macos() {
    echo "Installing dependencies on macOS..."
    
    # Check for Homebrew
    if ! command -v brew >/dev/null 2>&1; then
        echo "Installing Homebrew..."
        /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
    fi
    
    # Install Node.js
    brew install node
    
    # Install application dependencies
    npm install --production
}

Quality Assurance

Validation Criteria

• Scripts execute without syntax errors on target platforms

• Interactive menus function correctly with input validation

• Error handling provides clear, actionable messages

• Rollback mechanisms work properly on installation failure

• Generated scripts are idempotent (safe to re-run)

• All dependencies are correctly installed and configured

• Services start successfully and respond to health checks

Testing Requirements

• Syntax validation for each scripting language

• Logic flow testing with various input scenarios

• Error condition testing and recovery validation

• Platform compatibility testing on target systems

• Performance testing for installation speed

• Security testing for credential handling

Output Deliverables

1. Platform-Specific Scripts

• dist/install_linux.sh - Linux installation script

• dist/install_windows.ps1 - Windows PowerShell script

• dist/install_macos.sh - macOS installation script

• dist/install.bat - Windows batch file (if needed)

2. Documentation Files

• dist/README.md - Installation instructions

• dist/TROUBLESHOOTING.md - Common issues and solutions

• dist/REQUIREMENTS.md - System requirements per platform

3. Verification Files

• dist/checksums.txt - File integrity verification

• dist/signatures.txt - Digital signatures (if applicable)

Integration Points

Input Dependencies

• Project analysis results from scanning task

• Validated isaac_manifest.json from manifest generation

• Template files from template management system

• Platform-specific command libraries and utilities

Output Consumers

• Distribution and packaging systems

• CI/CD pipeline integration

• Quality assurance testing frameworks

• End-user installation processes

Error Handling & Recovery

Common Error Scenarios

• Template rendering failures: Handle missing variables or invalid syntax

• Platform incompatibilities: Graceful degradation for unsupported features

• Dependency conflicts: Resolution strategies for version conflicts

• Permission issues: Clear guidance for privilege escalation

• Network failures: Retry mechanisms for download operations

Recovery Mechanisms

• Rollback procedures: Undo partial installations on failure

• Checkpoint system: Resume installations from failure points

• Alternative methods: Fallback installation strategies

• User guidance: Clear error messages with resolution steps

• Logging system: Comprehensive logs for troubleshooting