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package mpb
import (
"io"
"sync"
"time"
"unicode/utf8"
"github.com/vbauerster/mpb/cwriter"
)
// ProgressOption is a function option which changes the default behavior of
// progress pool, if passed to mpb.New(...ProgressOption)
type ProgressOption func(*pState)
// WithWaitGroup provides means to have a single joint point.
// If *sync.WaitGroup is provided, you can safely call just p.Wait()
// without calling Wait() on provided *sync.WaitGroup.
// Makes sense when there are more than one bar to render.
func WithWaitGroup(wg *sync.WaitGroup) ProgressOption {
return func(s *pState) {
s.uwg = wg
}
}
// WithWidth overrides default width 80
func WithWidth(w int) ProgressOption {
return func(s *pState) {
if w >= 0 {
s.width = w
}
}
}
// WithFormat overrides default bar format "[=>-]"
func WithFormat(format string) ProgressOption {
return func(s *pState) {
if utf8.RuneCountInString(format) == formatLen {
s.format = format
}
}
}
// WithRefreshRate overrides default 120ms refresh rate
func WithRefreshRate(d time.Duration) ProgressOption {
return func(s *pState) {
if d < 10*time.Millisecond {
return
}
s.rr = d
}
}
// WithManualRefresh disables internal auto refresh time.Ticker.
// Refresh will occur upon receive value from provided ch.
func WithManualRefresh(ch <-chan time.Time) ProgressOption {
return func(s *pState) {
s.manualRefreshCh = ch
}
}
// WithCancel provide your cancel channel,
// which you plan to close at some point.
func WithCancel(ch <-chan struct{}) ProgressOption {
return func(s *pState) {
s.cancel = ch
}
}
// WithShutdownNotifier provided chanel will be closed, after all bars have been rendered.
func WithShutdownNotifier(ch chan struct{}) ProgressOption {
return func(s *pState) {
s.shutdownNotifier = ch
}
}
// WithOutput overrides default output os.Stdout
func WithOutput(w io.Writer) ProgressOption {
return func(s *pState) {
if w == nil {
return
}
s.cw = cwriter.New(w)
}
}
// WithDebugOutput sets debug output.
func WithDebugOutput(w io.Writer) ProgressOption {
return func(s *pState) {
if w == nil {
return
}
s.debugOut = w
}
}
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