Build System

/**
 * Build project locally
 * Command: netlify build [options]
 */
interface BuildOptions {
  /** Deploy context for environment variables and plugins (default: production) */
  context?: 'production' | 'deploy-preview' | 'branch-deploy' | 'dev' | string;
  /** Show build instructions without executing (dry run) */
  dry?: boolean;
  /** Disable network-dependent features during build */
  offline?: boolean;
}

# Build for production context
netlify build

# Build for specific context
netlify build --context deploy-preview

# Dry run to see build commands
netlify build --dry

# Build offline (skip network features)
netlify build --offline

# Build for development context
netlify build --context dev

/**
 * Build and serve project locally for production testing
 * Command: netlify serve [options]
 */
interface ServeOptions {
  /** Deploy context for build and serve */
  context?: 'production' | 'deploy-preview' | 'branch-deploy' | 'dev' | string;
  /** Port for local server */
  port?: number;
  /** Static files directory to serve */
  dir?: string;
  /** Functions folder */
  functions?: string;
  /** Disable network-dependent features */
  offline?: boolean;
  /** Disable edge functions */
  internalDisableEdgeFunctions?: boolean;
  /** Functions server port */
  functionsPort?: number;
  /** Geolocation mode for testing */
  geo?: 'cache' | 'mock' | 'update';
  /** Country code for geo mocking */
  country?: string;
  /** Static server port */
  staticServerPort?: number;
}

# Build and serve for production
netlify serve

# Serve on custom port
netlify serve --port 8080

# Serve with custom directory
netlify serve --dir dist

# Serve with functions
netlify serve --functions ./lambda --port 3000

# Serve for specific context
netlify serve --context deploy-preview

# Serve with geolocation mocking
netlify serve --geo mock --country US

# Serve offline
netlify serve --offline

/**
 * Build configuration structure
 */
interface BuildConfig {
  /** Build settings */
  build: {
    /** Build command to execute */
    command?: string;
    /** Directory to publish (relative to repo root) */
    publish?: string;
    /** Functions directory */
    functions?: string;
    /** Base directory for build */
    base?: string;
    /** Environment variables for build */
    environment?: Record<string, string>;
    /** Build processing */
    processing: {
      /** CSS optimization */
      css?: {
        bundle: boolean;
        minify: boolean;
      };
      /** JavaScript optimization */
      js?: {
        bundle: boolean;
        minify: boolean;
      };
      /** HTML optimization */
      html?: {
        pretty_urls: boolean;
      };
      /** Image optimization */
      images?: {
        compress: boolean;
      };
    };
  };
  
  /** Context-specific build settings */
  context: {
    [contextName: string]: {
      command?: string;
      publish?: string;
      functions?: string;
      environment?: Record<string, string>;
    };
  };
  
  /** Branch-specific settings */
  [branchName: string]: {
    command?: string;
    publish?: string;
    functions?: string;
    environment?: Record<string, string>;
  };
}

/**
 * Build plugin configuration
 */
interface BuildPlugins {
  /** Plugin list and configuration */
  plugins: Array<{
    /** Plugin package name */
    package: string;
    /** Plugin inputs/configuration */
    inputs?: Record<string, any>;
    /** Conditions for plugin execution */
    conditions?: {
      /** Only run in specific contexts */
      context?: string[];
      /** Only run for specific branches */
      branch?: string[];
      /** Environment variable conditions */
      env?: Record<string, string>;
    };
  }>;
  
  /** Popular build plugins */
  common: {
    /** Essential plugins */
    essential: [
      '@netlify/plugin-essential-next',
      '@netlify/plugin-gatsby',
      '@netlify/plugin-nuxt'
    ];
    /** Optimization plugins */
    optimization: [
      'netlify-plugin-minify-html',
      'netlify-plugin-image-optim',
      'netlify-plugin-inline-critical-css'
    ];
    /** SEO and analytics */
    seo: [
      'netlify-plugin-sitemap',
      'netlify-plugin-lighthouse',
      '@netlify/plugin-google-analytics'
    ];
    /** Security plugins */
    security: [
      'netlify-plugin-csp-generator',
      'netlify-plugin-security-txt'
    ];
  };
}

/**
 * Build lifecycle stages
 */
interface BuildLifecycle {
  /** Pre-build stage */
  preBuild: {
    /** Install dependencies */
    install: boolean;
    /** Run pre-build commands */
    commands: string[];
    /** Plugin pre-build hooks */
    pluginHooks: string[];
  };
  
  /** Build stage */
  build: {
    /** Main build command */
    command: string;
    /** Build timeout */
    timeout: number; // seconds
    /** Environment variables */
    environment: Record<string, string>;
    /** Working directory */
    workingDirectory: string;
  };
  
  /** Post-build stage */
  postBuild: {
    /** Post-build commands */
    commands: string[];
    /** Plugin post-build hooks */
    pluginHooks: string[];
    /** Asset processing */
    assetProcessing: boolean;
  };
  
  /** Pre-deploy stage */
  preDeploy: {
    /** Pre-deploy commands */
    commands: string[];
    /** File transformations */
    transformations: string[];
    /** Security scans */
    securityScans: boolean;
  };
}

/**
 * Framework detection system
 */
interface FrameworkDetection {
  /** Detected framework information */
  detected: {
    /** Framework name */
    name: 'gatsby' | 'next' | 'react' | 'vue' | 'angular' | 'hugo' | 'jekyll' | 'eleventy' | 'svelte' | 'nuxt' | 'vite' | 'remix' | 'astro';
    /** Framework version */
    version: string;
    /** Detection confidence */
    confidence: number; // 0-1
    /** Detection method */
    detectedBy: 'package.json' | 'config-file' | 'file-structure';
  };
  
  /** Framework-specific settings */
  settings: {
    /** Default build command */
    buildCommand: string;
    /** Default publish directory */
    publishDir: string;
    /** Default functions directory */
    functionsDir?: string;
    /** Framework-specific environment variables */
    environment: Record<string, string>;
    /** Required plugins */
    plugins: string[];
    /** Development server settings */
    devCommand: string;
    devPort: number;
  };
  
  /** Framework overrides */
  overrides: {
    /** Custom build command */
    buildCommand?: string;
    /** Custom publish directory */
    publishDir?: string;
    /** Custom environment variables */
    environment?: Record<string, string>;
    /** Additional plugins */
    additionalPlugins?: string[];
  };
}

/**
 * Build environment configuration
 */
interface BuildEnvironment {
  /** System environment */
  system: {
    /** Operating system */
    os: 'ubuntu-20.04' | 'ubuntu-22.04';
    /** Node.js version */
    nodeVersion: string;
    /** npm version */
    npmVersion: string;
    /** yarn version */
    yarnVersion?: string;
    /** Python version */
    pythonVersion?: string;
    /** Ruby version */
    rubyVersion?: string;
    /** Go version */
    goVersion?: string;
    /** Available memory */
    memory: number; // MB
    /** Available disk space */
    diskSpace: number; // GB
  };
  
  /** Build-specific variables */
  buildVars: {
    /** Netlify build variables */
    netlify: {
      BUILD_ID: string;
      DEPLOY_ID: string;
      CONTEXT: string;
      BRANCH: string;
      HEAD: string;
      COMMIT_REF: string;
      REPOSITORY_URL: string;
      URL: string;
      DEPLOY_URL: string;
      DEPLOY_PRIME_URL: string;
      SITE_ID: string;
      SITE_NAME: string;
      NETLIFY: 'true';
      NETLIFY_BUILD_BASE: string;
      NETLIFY_BUILD_LIFECYCLE_TRIAL: string;
    };
    
    /** User-defined variables */
    user: Record<string, string>;
    
    /** Context-specific variables */
    context: Record<string, string>;
  };
  
  /** Cache configuration */
  cache: {
    /** Build cache directory */
    directory: string;
    /** Cache key */
    key: string;
    /** Cache dependencies */
    dependencies: string[];
    /** Cache max age */
    maxAge: number; // seconds
  };
}

/**
 * Build output configuration
 */
interface BuildOutput {
  /** Output directories */
  directories: {
    /** Main publish directory */
    publish: string;
    /** Functions output directory */
    functions?: string;
    /** Edge functions directory */
    edgeFunctions?: string;
    /** Static assets directory */
    assets?: string;
  };
  
  /** File processing */
  processing: {
    /** Files to include in deploy */
    include: string[];
    /** Files to exclude from deploy */
    exclude: string[];
    /** File transformations */
    transforms: Array<{
      from: string;
      to: string;
      transform: 'minify' | 'compress' | 'optimize' | 'rename';
    }>;
  };
  
  /** Build artifacts */
  artifacts: {
    /** Build logs */
    logs: {
      path: string;
      level: 'error' | 'warn' | 'info' | 'debug';
      format: 'text' | 'json';
    };
    /** Test results */
    tests?: {
      path: string;
      format: 'junit' | 'tap' | 'json';
    };
    /** Coverage reports */
    coverage?: {
      path: string;
      format: 'lcov' | 'json' | 'html';
    };
    /** Bundle analysis */
    bundleAnalysis?: {
      path: string;
      format: 'json' | 'html';
    };
  };
}

/**
 * Build performance configuration
 */
interface BuildPerformance {
  /** Performance monitoring */
  monitoring: {
    /** Build time tracking */
    timing: {
      enabled: boolean;
      breakdown: boolean; // per-stage timing
    };
    /** Resource usage tracking */
    resources: {
      memory: boolean;
      cpu: boolean;
      disk: boolean;
    };
  };
  
  /** Optimization settings */
  optimization: {
    /** Parallel processing */
    parallel: {
      enabled: boolean;
      maxWorkers: number;
    };
    /** Incremental builds */
    incremental: {
      enabled: boolean;
      cacheStrategy: 'aggressive' | 'conservative';
    };
    /** Dependency optimization */
    dependencies: {
      /** Dependency caching */
      cache: boolean;
      /** Install optimization */
      optimizeInstall: boolean;
    };
  };
  
  /** Build limits */
  limits: {
    /** Maximum build time */
    timeout: number; // minutes
    /** Maximum log size */
    maxLogSize: number; // MB
    /** Maximum output size */
    maxOutputSize: number; // MB
  };
}

/**
 * Build error handling configuration
 */
interface BuildErrorHandling {
  /** Error detection */
  detection: {
    /** Exit code monitoring */
    exitCodes: boolean;
    /** Log pattern matching */
    logPatterns: string[];
    /** Timeout detection */
    timeouts: boolean;
  };
  
  /** Error reporting */
  reporting: {
    /** Error categorization */
    categorize: boolean;
    /** Stack trace capture */
    stackTraces: boolean;
    /** Context information */
    contextInfo: boolean;
  };
  
  /** Recovery options */
  recovery: {
    /** Automatic retry */
    autoRetry: {
      enabled: boolean;
      maxAttempts: number;
      backoffStrategy: 'linear' | 'exponential';
    };
    /** Fallback builds */
    fallback: {
      enabled: boolean;
      strategy: 'previous-successful' | 'minimal';
    };
  };
  
  /** Debug features */
  debug: {
    /** Debug mode */
    enabled: boolean;
    /** Verbose logging */
    verbose: boolean;
    /** Build shell access */
    shellAccess: boolean;
    /** Environment inspection */
    envInspection: boolean;
  };
}