TL;DR

Added a new vite outdated command to check for outdated packages, with support for all package managers (pnpm, npm, yarn).

What changed?

• Added a new outdated command to the Vite CLI that checks for outdated packages
• Implemented package manager-specific command resolution for pnpm, npm, and yarn
• Added support for various output formats (table, list, JSON)
• Implemented workspace filtering with --filter flag
• Added dependency type filtering options (--prod, --dev, --no-optional)
• Added support for global package checking with -g flag
• Implemented special handling for yarn@2+ which uses upgrade-interactive
• Added appropriate warnings when flags aren't supported by specific package managers

How to test?

# Basic usage
vite outdated

# Check specific packages
vite outdated react lodash

# Output formats
vite outdated --format json
vite outdated --format list
vite outdated --long

# Workspace operations
vite outdated --filter app
vite outdated -r

# Dependency type filtering (pnpm-specific)
vite outdated --prod
vite outdated --dev
vite outdated --no-optional

# Global packages
vite outdated -g

Why make this change?

This command simplifies dependency management by providing a unified interface for checking outdated packages across all package managers. It automatically adapts to the detected package manager (pnpm/npm/yarn) and translates flags appropriately, making it easier for developers to maintain up-to-date dependencies without needing to remember different syntaxes for each package manager.