diff options
Diffstat (limited to 'vendor/github.com/vbauerster/mpb/v4/README.md')
| -rw-r--r-- | vendor/github.com/vbauerster/mpb/v4/README.md | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/vendor/github.com/vbauerster/mpb/v4/README.md b/vendor/github.com/vbauerster/mpb/v4/README.md new file mode 100644 index 000000000..003fb5987 --- /dev/null +++ b/vendor/github.com/vbauerster/mpb/v4/README.md @@ -0,0 +1,118 @@ +# Multi Progress Bar + +[](https://godoc.org/github.com/vbauerster/mpb) +[](https://travis-ci.org/vbauerster/mpb) +[](https://goreportcard.com/report/github.com/vbauerster/mpb) + +**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](https://github.com/VividCortex/ewma) based ETA, Percentage, Bytes counter +* __Decorator's width sync__: Synchronized decorator's width among multiple bars + +## Usage + +#### [Rendering single bar](_examples/singleBar/main.go) +```go +package main + +import ( + "math/rand" + "time" + + "github.com/vbauerster/mpb/v4" + "github.com/vbauerster/mpb/v4/decor" +) + +func main() { + // initialize progress container, with custom width + p := mpb.New(mpb.WithWidth(64)) + + total := 100 + name := "Single Bar:" + // adding a single bar, which will inherit container's width + bar := p.AddBar(int64(total), + // override DefaultBarStyle, which is "[=>-]<+" + mpb.BarStyle("╢▌▌░╟"), + mpb.PrependDecorators( + // display our name with one space on the right + decor.Name(name, decor.WC{W: len(name) + 1, C: decor.DidentRight}), + // replace ETA decorator with "done" message, OnComplete event + decor.OnComplete( + // ETA decorator with ewma age of 60, and width reservation of 4 + decor.EwmaETA(decor.ET_STYLE_GO, 60, decor.WC{W: 4}), "done", + ), + ), + mpb.AppendDecorators(decor.Percentage()), + ) + // simulating some work + max := 100 * time.Millisecond + for i := 0; i < total; i++ { + start := time.Now() + time.Sleep(time.Duration(rand.Intn(10)+1) * max / 10) + // since ewma decorator is used, we need to pass time.Since(start) + bar.Increment(time.Since(start)) + } + // wait for our bar to complete and flush + p.Wait() +} +``` + +#### [Rendering multiple bars](_examples/multiBars//main.go) +```go + var wg sync.WaitGroup + // pass &wg (optional), so p will wait for it eventually + 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( + // simple name decorator + decor.Name(name), + // decor.DSyncWidth bit enables column width synchronization + decor.Percentage(decor.WCSyncSpace), + ), + mpb.AppendDecorators( + // replace ETA decorator with "done" message, OnComplete event + decor.OnComplete( + // ETA decorator with ewma age of 60 + decor.EwmaETA(decor.ET_STYLE_GO, 60), "done", + ), + ), + ) + // simulating some work + 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) + // since ewma decorator is used, we need to pass time.Since(start) + bar.Increment(time.Since(start)) + } + }() + } + // Waiting for passed &wg and for all bars to complete and flush + p.Wait() +``` + +#### [Dynamic total](_examples/dynTotal/main.go) + + + +#### [Complex example](_examples/complex/main.go) + + + +#### [Bytes counters](_examples/io/main.go) + + |