goldsmith/extension.go

package goldsmith

// Plugin contains the minimum set of methods required on plugins. Plugins can
// also optionally implement Initializer, Processor, and Finalizer interfaces.
type (
	Plugin interface {
		Name() string
	}

	// Initializer is used to optionally initialize a plugin and to specify a
	// filter to be used for determining which files will be processed.
	Initializer interface {
		Initialize(context *Context) error
	}

	// Processor allows for optional processing of files passing through a plugin.
	Processor interface {
		Process(context *Context, file *File) error
	}

	// Finalizer allows for optional finalization of a plugin after all files
	// queued in the chain have passed through it.
	Finalizer interface {
		Finalize(context *Context) error
	}

	// Filter is used to determine which files should continue in the chain.
	Filter interface {
		Name() string
		Accept(file *File) bool
	}
)