fetch

type NopObserver ¶

type NopObserver struct{}

NopObserver is a no-op ProgressObserver. Use it instead of nil to avoid nil checks throughout the call chain.

func (NopObserver) Start(ProgressInfo) ProgressTracker

type NopTracker ¶

type NopTracker struct{}

NopTracker is a no-op ProgressTracker returned by NopObserver.

func (NopTracker) Add(int64)

func (NopTracker) Done(error)

type Option ¶

type Option func(*downloadOptions)

func WithProgress(kind SourceKind, progress ProgressObserver) Option

type ProgressInfo ¶

type ProgressInfo struct {
	Kind       SourceKind
	URL        string
	TotalBytes int64
}

type ProgressObserver ¶

type ProgressObserver interface {
	Start(info ProgressInfo) ProgressTracker
}

type ProgressTracker ¶

type ProgressTracker interface {
	Add(n int64)
	Done(err error)
}

type SourceKind ¶

type SourceKind string

const (
	SourceRemoteConfig SourceKind = "remote config"
	SourceRemoteMixin  SourceKind = "remote mixin"
	SourceSelfUpdate   SourceKind = "self update"
)