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package main
import (
"io"
"math/rand"
"time"
"github.com/vbauerster/mpb/v8"
"github.com/vbauerster/mpb/v8/decor"
)
func main() {
p := mpb.New()
total := 100
bar := p.New(int64(total),
mpb.NopStyle(), // make main bar style nop, so there are just decorators
mpb.BarExtender(extended(mpb.BarStyle().Build()), false), // extend wtih normal bar on the next line
mpb.PrependDecorators(
decor.Name("Percentage: "),
decor.NewPercentage("%d"),
),
mpb.AppendDecorators(
decor.Name("ETA: "),
decor.OnComplete(
decor.AverageETA(decor.ET_STYLE_GO), "done",
),
),
)
// simulating some work
max := 100 * time.Millisecond
for i := 0; i < total; i++ {
time.Sleep(time.Duration(rand.Intn(10)+1) * max / 10)
bar.Increment()
}
// wait for our bar to complete and flush
p.Wait()
}
func extended(base mpb.BarFiller) mpb.BarFiller {
return mpb.BarFillerFunc(func(w io.Writer, st decor.Statistics) error {
err := base.Fill(w, st)
if err != nil {
return err
}
_, err = io.WriteString(w, "\n")
return err
})
}
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