mirror of
https://github.com/containers/podman
synced 2024-10-20 17:23:30 +00:00
2388222e98
Ran a `go get -u` and bumped K8s deps to 1.15.0. Signed-off-by: Valentin Rothberg <rothberg@redhat.com> |
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.. | ||
cwriter | ||
decor | ||
internal | ||
.gitignore | ||
.travis.yml | ||
bar.go | ||
bar_filler.go | ||
bar_option.go | ||
doc.go | ||
go.test.sh | ||
LICENSE | ||
options.go | ||
priority_queue.go | ||
progress.go | ||
progress_posix.go | ||
progress_windows.go | ||
proxyreader.go | ||
README.md | ||
spinner_filler.go |
Multi Progress Bar
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
Installation
go get github.com/vbauerster/mpb
Note: it is preferable to go get from github.com, rather than gopkg.in. See issue #11.
Usage
Rendering single bar
p := mpb.New(
// override default (80) width
mpb.WithWidth(64),
// override default 120ms refresh rate
mpb.WithRefreshRate(180*time.Millisecond),
)
total := 100
name := "Single Bar:"
// adding a single bar
bar := p.AddBar(int64(total),
// override default "[=>-]" style
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)
// ewma based decorators require work duration measurement
bar.IncrBy(1, time.Since(start))
}
// wait for our bar to complete and flush
p.Wait()
Rendering multiple bars
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(
// 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()
max := 100 * time.Millisecond
for i := 0; i < total; i++ {
start := time.Now()
time.Sleep(time.Duration(rand.Intn(10)+1) * max / 10)
// ewma based decorators require work duration measurement
bar.IncrBy(1, time.Since(start))
}
}()
}
// wait for all bars to complete and flush
p.Wait()