arthur/xtablo-source

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Arthur Belleville 00c844e8d5

Improve turbo setup

2025-10-23 21:05:49 +02:00

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Development Guide

This monorepo uses Turborepo to manage builds, development, and testing across multiple packages and applications.

Repository Structure

xtablo-source/
├── apps/
│   ├── main/          # Main application (@xtablo/main)
│   └── external/      # External application (@xtablo/external)
├── packages/
│   ├── shared/        # Shared utilities and logic (@xtablo/shared)
│   └── ui/            # UI component library (@xtablo/ui)

Prerequisites

Node.js >= 18
pnpm >= 10.19.0

Getting Started

# Install dependencies
pnpm install

# Start development (packages are source-only, no build needed)
pnpm dev

Available Commands

Building

# Build all apps (packages are source-only, consumed directly by bundlers)
pnpm build

# Build only apps (main, external)
pnpm build:apps

Note: The @xtablo/shared and @xtablo/ui packages are source-only packages. They export TypeScript source files directly and are consumed by app bundlers (Vite) without a separate build step. This is faster and simpler for development.

Development

# Run all apps in development mode
pnpm dev

# Run specific app
pnpm dev:main      # Main app only
pnpm dev:external  # External app only

Note: Since packages are source-only, there's no need to run them in watch mode. Changes to package files are instantly picked up by the app's bundler (Vite) through hot module replacement.

Testing

# Run all tests
pnpm test

# Run tests in watch mode
pnpm test:watch

# Run tests for specific package
cd apps/main && pnpm test
cd apps/main && pnpm test:watch
cd apps/main && pnpm test:coverage

Linting & Formatting

# Check all packages
pnpm lint

# Fix linting issues
pnpm lint:fix

# Format code
pnpm format

# Type checking
pnpm typecheck

Cleaning

# Clean all build artifacts
pnpm clean

# Clean specific app
cd apps/main && pnpm clean

Turborepo Features

Smart Caching

Turborepo caches build outputs and skips unnecessary work:

Build outputs are cached based on input files
If nothing changed, builds are instant
Cache is shared across the team (when configured)

Parallel Execution

Tasks run in parallel when possible:

# Runs lint on all packages simultaneously
pnpm lint

Task Dependencies

Turborepo automatically handles task dependencies:

build depends on ^build (builds dependencies first, though packages are source-only)
Tasks run in topological order based on package dependencies

Filtering

Run commands for specific packages:

# Build only main app and its dependencies
turbo build --filter=@xtablo/main

# Build only packages
turbo build --filter='./packages/*'

# Build everything except external
turbo build --filter='!@xtablo/external'

Package Development Workflow

1. Working on Packages

Since packages are source-only, just run your app and edit package files directly:

# Just run your app - changes to packages are instantly reflected
pnpm dev:main

# Or run all apps
pnpm dev

The app's bundler (Vite) will automatically detect changes in packages/shared and packages/ui and hot-reload them.

2. Adding a New Package

Create the package in packages/

For source-only packages (like shared/ui), add these scripts to package.json:

{
  "scripts": {
    "lint": "biome check .",
    "lint:fix": "biome check --write .",
    "format": "biome format --write .",
    "typecheck": "tsc --noEmit"
  }
}

Set up exports in package.json:

{
  "main": "./src/index.ts",
  "types": "./src/index.ts",
  "exports": {
    ".": "./src/index.ts"
  }
}

Add to workspace in pnpm-workspace.yaml (if not already included by glob)
Run pnpm install to link the package

3. Testing Changes Across Packages

When making changes that affect multiple packages:

# Type check everything
pnpm typecheck

# Run all tests
pnpm test

# Lint everything
pnpm lint

Performance Tips

Source-Only Packages: Packages consume TypeScript directly for instant feedback
Selective Builds: Use filters to build only the apps you need
Clean When Stuck: Run pnpm clean if you encounter weird caching issues
Hot Module Replacement: Vite provides instant updates when editing package files

Troubleshooting

Build Errors

If you encounter build errors:

# Clean everything and rebuild
pnpm clean
pnpm install
pnpm build

Type Errors in Apps

If apps show type errors for packages:

# Check TypeScript configuration in packages
cd packages/shared && pnpm typecheck
cd packages/ui && pnpm typecheck

# Restart your IDE's TypeScript server
# In VS Code: Cmd+Shift+P > "TypeScript: Restart TS Server"

Cache Issues

If builds seem stale:

# Clear Turbo cache
rm -rf node_modules/.cache/turbo

# Clean and rebuild
pnpm clean
pnpm build

CI/CD Considerations

For CI/CD pipelines:

# Install dependencies
pnpm install --frozen-lockfile

# Build everything
pnpm build

# Run all checks
pnpm lint
pnpm typecheck
pnpm test

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