Multi Progress Bar
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mpb is a Go lib for rendering progress bars in terminal applications.
Features
- Multiple Bars: Multiple progress bars are supported
- Dynamic Total: Set total while bar is running
- Dynamic Add/Remove: Dynamically add or remove bars
- Cancellation: Cancel whole rendering process
- Predefined Decorators: Elapsed time, ewma based ETA, Percentage, Bytes counter
- Decorator's width sync: Synchronized decorator's width among multiple bars
Usage
package main
import (
"math/rand"
"time"
"github.com/vbauerster/mpb/v5"
"github.com/vbauerster/mpb/v5/decor"
)
func main() {
p := mpb.New(mpb.WithWidth(64))
total := 100
name := "Single Bar:"
bar := p.AddBar(int64(total),
mpb.BarStyle("╢▌▌░╟"),
mpb.PrependDecorators(
decor.Name(name, decor.WC{W: len(name) + 1, C: decor.DidentRight}),
decor.OnComplete(
decor.AverageETA(decor.ET_STYLE_GO, decor.WC{W: 4}), "done",
),
),
mpb.AppendDecorators(decor.Percentage()),
)
max := 100 * time.Millisecond
for i := 0; i < total; i++ {
time.Sleep(time.Duration(rand.Intn(10)+1) * max / 10)
bar.Increment()
}
p.Wait()
}
var wg sync.WaitGroup
p := mpb.New(mpb.WithWaitGroup(&wg))
total, numBars := 100, 3
wg.Add(numBars)
for i := 0; i < numBars; i++ {
name := fmt.Sprintf("Bar#%d:", i)
bar := p.AddBar(int64(total),
mpb.PrependDecorators(
decor.Name(name),
decor.Percentage(decor.WCSyncSpace),
),
mpb.AppendDecorators(
decor.OnComplete(
decor.EwmaETA(decor.ET_STYLE_GO, 60), "done",
),
),
)
go func() {
defer wg.Done()
rng := rand.New(rand.NewSource(time.Now().UnixNano()))
max := 100 * time.Millisecond
for i := 0; i < total; i++ {
start := time.Now()
time.Sleep(time.Duration(rng.Intn(10)+1) * max / 10)
bar.Increment()
bar.DecoratorEwmaUpdate(time.Since(start))
}
}()
}
p.Wait()
![dynamic total](https://github.com/vbauerster/mpb/v5/raw/HEAD/_svg/godEMrCZmJkHYH1X9dN4Nm0U7.svg)
![complex](https://github.com/vbauerster/mpb/v5/raw/HEAD/_svg/wHzf1M7sd7B3zVa2scBMnjqRf.svg)
![byte counters](https://github.com/vbauerster/mpb/v5/raw/HEAD/_svg/hIpTa3A5rQz65ssiVuRJu87X6.svg)