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react/metro

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metrobundler.dev↗

Metro

Metro est un bundler JavaScript conçu pour les environnements React Native. Il fonctionne comme un système pour résoudre les dépendances, transformer le code source et empaqueter JavaScript et les actifs dans des bundles pour l'exécution.

Le projet inclut un serveur de bundler de développement qui héberge les actifs via HTTP et fournit le remplacement de module à chaud (hot module replacement). Il dispose d'un résolveur de module qui gère les extensions de fichiers spécifiques à la plateforme et un transformateur de code source qui convertit le code en structures d'arbre pour l'optimisation et la minification.

La boîte à outils couvre la génération de bundle par programmation, la création de source maps et la mise en cache du système de fichiers pour éviter les transformations redondantes. Elle fournit également des capacités pour la gestion des actifs, l'injection de polyfills et la configuration de serveur sécurisée utilisant des certificats TLS pour les endpoints chiffrés.

Des outils de surveillance sont inclus pour suivre le statut du bundling et enregistrer les métadonnées de performance pour les événements de démarrage et de mise à jour.

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Features

  • React Native Bundlers - Packages JavaScript code and assets into single bundles optimized for execution within React Native applications.
  • JavaScript Bundling Workflows - Resolves dependencies from a root file to create a packaged JavaScript bundle with minification and platform targeting.
  • Bundled Asset Serving - Serves generated JavaScript bundles and assets via a local HTTP server for rapid development deployment.
  • Development Bundler Servers - Runs a local HTTP server to handle requests for bundles and assets during active development.
  • Module Dependency Graphs - Traverses import trees to build a complete directed graph of required modules and assets.
  • Module Resolution - Defines how the bundler locates files using source extensions, package entry fields, and custom algorithms.
  • Module Resolvers - Provides a configurable lookup engine that resolves file paths and package entry fields based on a root file.
  • Source Code Transformation Engines - Converts source code into intermediate tree structures through a pluggable transformation pipeline before bundling.
  • JavaScript Source Transformers - Provides a transformation pipeline that converts source code into tree structures for optimization and minification.
  • React Native - Functions as a specialized bundler that resolves dependencies and packages code specifically for React Native environments.
  • Build Caches - Uses storage adapters to persist processed modules on disk to prevent redundant work across build cycles.
  • Programmatic Bundle APIs - Provides a promise-based programmatic interface to generate bundles, source maps, and assets for build automation.
  • Development Servers - Ships a local server providing hot module replacement to accelerate frontend and application iteration.
  • Asynchronous Bundle Pipelines - Executes the bundling process as an asynchronous pipeline returning the final assets and source maps.
  • Source Map Generators - Generates mapping files to correlate transformed production code back to the original source for debugging.
  • Platform-Specific Source Resolution - Automatically selects source files by matching platform-specific extensions during the module discovery phase.
  • Development Workflow Tools - Runs a local development server to deliver bundles and assets to mobile devices during active coding.
  • Persistent Module Caches - Persists processed module outputs and symbol tables on disk to avoid redundant transformations across build cycles.
  • Platform-Suffix Asset Resolution - Retrieves correct file paths for assets based on platform suffixes or resolution requirements.
  • Pluggable Compiler Integrations - Allows replacing the default compiler or minifier to customize source code processing and optimization.
  • Source Directory Configuration - Controls which folders are scanned for source files and excludes paths using regular expressions.
  • Build Automation Pipelines - Programmatically generates bundles and source maps to integrate into automated deployment or build pipelines.
5,608 stars·682 forks·JavaScript·MIT·3 vues

Historique des stars

Graphique de l'historique des stars pour react/metroGraphique de l'historique des stars pour react/metro

Questions fréquentes

Que fait react/metro ?

Metro est un bundler JavaScript conçu pour les environnements React Native. Il fonctionne comme un système pour résoudre les dépendances, transformer le code source et empaqueter JavaScript et les actifs dans des bundles pour l'exécution.

Quelles sont les fonctionnalités principales de react/metro ?

Les fonctionnalités principales de react/metro sont : React Native Bundlers, JavaScript Bundling Workflows, Bundled Asset Serving, Development Bundler Servers, Module Dependency Graphs, Module Resolution, Module Resolvers, Source Code Transformation Engines.

Quelles sont les alternatives open-source à react/metro ?

Les alternatives open-source à react/metro incluent : substack/node-browserify — This project is a CommonJS module bundler and resolver designed to combine interdependent JavaScript files into a… farm-fe/farm — Farm is a Rust-based web build tool and development server that compiles JavaScript, TypeScript, CSS, HTML, and static… microsoft/rushstack — Rushstack is a comprehensive toolset for managing large-scale TypeScript monorepos, providing a framework for build… callstack/haul — Haul is a mobile application development tool that functions as a JavaScript module bundler, TypeScript transpiler,… rolldown/rolldown — Rolldown is a high-performance JavaScript and TypeScript module bundler written in Rust. It functions as a fast module… browserify/browserify-handbook — The browserify-handbook is a comprehensive documentation guide for Browserify, a CommonJS module bundler and…

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