Initialization and Validation

The buildStart hook is called once at the beginning of the build process. It’s great for:

• Logging
• Validating plugin options
• Scanning files
• Initializing in-memory caches

This is your “before we begin” hook.

buildStart() {
  console.log('Build is starting...')
}

The buildStart hook is ideal for printing debug messages to the console, reading environment variables, and any other configuration tasks you need to do when your plugin is used during a Vite build.