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authorbaude <bbaude@redhat.com>2021-03-15 14:52:43 -0500
committerbaude <bbaude@redhat.com>2021-03-25 08:43:51 -0500
commitb5f54a9b23e8d9418700494da9aa78d8db354c43 (patch)
tree59dfb9edf3faf6d184f6af40522f71968948133a /vendor/github.com/vbauerster/mpb
parenta861f6fd3ebe4fe0b63a1b550e6b99d7525228c0 (diff)
downloadpodman-b5f54a9b23e8d9418700494da9aa78d8db354c43.tar.gz
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introduce podman machine
podman machine allows podman to create, manage, and interact with a vm running some form of linux (default is fcos). podman is then configured to be able to interact with the vm automatically. while this is usable on linux, the real push is to get this working on both current apple architectures in macos. Ashley Cui contributed to this PR and was a great help. [NO TESTS NEEDED] Signed-off-by: baude <bbaude@redhat.com>
Diffstat (limited to 'vendor/github.com/vbauerster/mpb')
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/.gitignore5
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/.travis.yml11
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/README.md120
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/UNLICENSE24
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/bar.go492
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/bar_filler.go31
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/bar_filler_bar.go191
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/bar_filler_spinner.go65
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/bar_option.go153
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/container_option.go112
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/cwriter/doc.go2
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/cwriter/util_bsd.go7
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/cwriter/util_linux.go7
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/cwriter/util_solaris.go7
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/cwriter/writer.go84
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/cwriter/writer_posix.go26
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/cwriter/writer_windows.go73
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/any.go21
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/counters.go243
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/decorator.go191
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/doc.go20
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/elapsed.go35
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/eta.go203
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/merge.go107
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/moving_average.go68
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/name.go12
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/on_complete.go37
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/percentage.go58
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/size_type.go109
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/sizeb1000_string.go41
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/sizeb1024_string.go41
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/speed.go171
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/decor/spinner.go21
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/doc.go2
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/go.mod11
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/go.sum11
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/internal/percentage.go19
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/internal/predicate.go6
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/internal/width.go10
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/priority_queue.go32
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/progress.go412
-rw-r--r--vendor/github.com/vbauerster/mpb/v6/proxyreader.go90
42 files changed, 3381 insertions, 0 deletions
diff --git a/vendor/github.com/vbauerster/mpb/v6/.gitignore b/vendor/github.com/vbauerster/mpb/v6/.gitignore
new file mode 100644
index 000000000..63bd91672
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/.gitignore
@@ -0,0 +1,5 @@
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
diff --git a/vendor/github.com/vbauerster/mpb/v6/.travis.yml b/vendor/github.com/vbauerster/mpb/v6/.travis.yml
new file mode 100644
index 000000000..9a203a67d
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/.travis.yml
@@ -0,0 +1,11 @@
+language: go
+arch:
+ - amd64
+ - ppc64le
+
+go:
+ - 1.14.x
+
+script:
+ - go test -race ./...
+ - for i in _examples/*/; do go build $i/*.go || exit 1; done
diff --git a/vendor/github.com/vbauerster/mpb/v6/README.md b/vendor/github.com/vbauerster/mpb/v6/README.md
new file mode 100644
index 000000000..a87786d72
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/README.md
@@ -0,0 +1,120 @@
+# Multi Progress Bar
+
+[![GoDoc](https://pkg.go.dev/badge/github.com/vbauerster/mpb)](https://pkg.go.dev/github.com/vbauerster/mpb/v6)
+[![Build Status](https://travis-ci.org/vbauerster/mpb.svg?branch=master)](https://travis-ci.org/vbauerster/mpb)
+[![Go Report Card](https://goreportcard.com/badge/github.com/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/v6"
+ "github.com/vbauerster/mpb/v6/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.Add(int64(total),
+ // progress bar filler with customized style
+ mpb.NewBarFiller("╢▌▌░╟"),
+ 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(
+ decor.AverageETA(decor.ET_STYLE_GO, decor.WC{W: 4}), "done",
+ ),
+ ),
+ mpb.AppendDecorators(decor.Percentage()),
+ )
+ // 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()
+}
+```
+
+#### [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 variable is solely for EWMA calculation
+ // EWMA's unit of measure is an iteration's duration
+ start := time.Now()
+ time.Sleep(time.Duration(rng.Intn(10)+1) * max / 10)
+ bar.Increment()
+ // we need to call DecoratorEwmaUpdate to fulfill ewma decorator's contract
+ bar.DecoratorEwmaUpdate(time.Since(start))
+ }
+ }()
+ }
+ // Waiting for passed &wg and for all bars to complete and flush
+ p.Wait()
+```
+
+#### [Dynamic total](_examples/dynTotal/main.go)
+
+![dynamic total](_svg/godEMrCZmJkHYH1X9dN4Nm0U7.svg)
+
+#### [Complex example](_examples/complex/main.go)
+
+![complex](_svg/wHzf1M7sd7B3zVa2scBMnjqRf.svg)
+
+#### [Bytes counters](_examples/io/main.go)
+
+![byte counters](_svg/hIpTa3A5rQz65ssiVuRJu87X6.svg)
diff --git a/vendor/github.com/vbauerster/mpb/v6/UNLICENSE b/vendor/github.com/vbauerster/mpb/v6/UNLICENSE
new file mode 100644
index 000000000..68a49daad
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/UNLICENSE
@@ -0,0 +1,24 @@
+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org/>
diff --git a/vendor/github.com/vbauerster/mpb/v6/bar.go b/vendor/github.com/vbauerster/mpb/v6/bar.go
new file mode 100644
index 000000000..f18ef967f
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/bar.go
@@ -0,0 +1,492 @@
+package mpb
+
+import (
+ "bytes"
+ "context"
+ "fmt"
+ "io"
+ "log"
+ "runtime/debug"
+ "strings"
+ "time"
+
+ "github.com/acarl005/stripansi"
+ "github.com/mattn/go-runewidth"
+ "github.com/vbauerster/mpb/v6/decor"
+)
+
+// Bar represents a progress bar.
+type Bar struct {
+ priority int // used by heap
+ index int // used by heap
+
+ extendedLines int
+ toShutdown bool
+ toDrop bool
+ noPop bool
+ hasEwmaDecorators bool
+ operateState chan func(*bState)
+ frameCh chan io.Reader
+ syncTableCh chan [][]chan int
+ completed chan bool
+
+ // cancel is called either by user or on complete event
+ cancel func()
+ // done is closed after cacheState is assigned
+ done chan struct{}
+ // cacheState is populated, right after close(shutdown)
+ cacheState *bState
+
+ container *Progress
+ dlogger *log.Logger
+ recoveredPanic interface{}
+}
+
+type extenderFunc func(in io.Reader, reqWidth int, st decor.Statistics) (out io.Reader, lines int)
+
+// bState is actual bar state. It gets passed to *Bar.serve(...) monitor
+// goroutine.
+type bState struct {
+ id int
+ priority int
+ reqWidth int
+ total int64
+ current int64
+ refill int64
+ lastN int64
+ iterated bool
+ trimSpace bool
+ completed bool
+ completeFlushed bool
+ triggerComplete bool
+ dropOnComplete bool
+ noPop bool
+ aDecorators []decor.Decorator
+ pDecorators []decor.Decorator
+ averageDecorators []decor.AverageDecorator
+ ewmaDecorators []decor.EwmaDecorator
+ shutdownListeners []decor.ShutdownListener
+ bufP, bufB, bufA *bytes.Buffer
+ filler BarFiller
+ middleware func(BarFiller) BarFiller
+ extender extenderFunc
+
+ // runningBar is a key for *pState.parkedBars
+ runningBar *Bar
+
+ debugOut io.Writer
+}
+
+func newBar(container *Progress, bs *bState) *Bar {
+ logPrefix := fmt.Sprintf("%sbar#%02d ", container.dlogger.Prefix(), bs.id)
+ ctx, cancel := context.WithCancel(container.ctx)
+
+ bar := &Bar{
+ container: container,
+ priority: bs.priority,
+ toDrop: bs.dropOnComplete,
+ noPop: bs.noPop,
+ operateState: make(chan func(*bState)),
+ frameCh: make(chan io.Reader, 1),
+ syncTableCh: make(chan [][]chan int, 1),
+ completed: make(chan bool, 1),
+ done: make(chan struct{}),
+ cancel: cancel,
+ dlogger: log.New(bs.debugOut, logPrefix, log.Lshortfile),
+ }
+
+ go bar.serve(ctx, bs)
+ return bar
+}
+
+// ProxyReader wraps r with metrics required for progress tracking.
+// Panics if r is nil.
+func (b *Bar) ProxyReader(r io.Reader) io.ReadCloser {
+ if r == nil {
+ panic("expected non nil io.Reader")
+ }
+ return newProxyReader(r, b)
+}
+
+// ID returs id of the bar.
+func (b *Bar) ID() int {
+ result := make(chan int)
+ select {
+ case b.operateState <- func(s *bState) { result <- s.id }:
+ return <-result
+ case <-b.done:
+ return b.cacheState.id
+ }
+}
+
+// Current returns bar's current number, in other words sum of all increments.
+func (b *Bar) Current() int64 {
+ result := make(chan int64)
+ select {
+ case b.operateState <- func(s *bState) { result <- s.current }:
+ return <-result
+ case <-b.done:
+ return b.cacheState.current
+ }
+}
+
+// SetRefill sets refill flag with specified amount.
+// The underlying BarFiller will change its visual representation, to
+// indicate refill event. Refill event may be referred to some retry
+// operation for example.
+func (b *Bar) SetRefill(amount int64) {
+ select {
+ case b.operateState <- func(s *bState) {
+ s.refill = amount
+ }:
+ case <-b.done:
+ }
+}
+
+// TraverseDecorators traverses all available decorators and calls cb func on each.
+func (b *Bar) TraverseDecorators(cb func(decor.Decorator)) {
+ select {
+ case b.operateState <- func(s *bState) {
+ for _, decorators := range [...][]decor.Decorator{
+ s.pDecorators,
+ s.aDecorators,
+ } {
+ for _, d := range decorators {
+ cb(extractBaseDecorator(d))
+ }
+ }
+ }:
+ case <-b.done:
+ }
+}
+
+// SetTotal sets total dynamically.
+// If total is less than or equal to zero it takes progress' current value.
+func (b *Bar) SetTotal(total int64, triggerComplete bool) {
+ select {
+ case b.operateState <- func(s *bState) {
+ s.triggerComplete = triggerComplete
+ if total <= 0 {
+ s.total = s.current
+ } else {
+ s.total = total
+ }
+ if s.triggerComplete && !s.completed {
+ s.current = s.total
+ s.completed = true
+ go b.refreshTillShutdown()
+ }
+ }:
+ case <-b.done:
+ }
+}
+
+// SetCurrent sets progress' current to an arbitrary value.
+// Setting a negative value will cause a panic.
+func (b *Bar) SetCurrent(current int64) {
+ select {
+ case b.operateState <- func(s *bState) {
+ s.iterated = true
+ s.lastN = current - s.current
+ s.current = current
+ if s.triggerComplete && s.current >= s.total {
+ s.current = s.total
+ s.completed = true
+ go b.refreshTillShutdown()
+ }
+ }:
+ case <-b.done:
+ }
+}
+
+// Increment is a shorthand for b.IncrInt64(1).
+func (b *Bar) Increment() {
+ b.IncrInt64(1)
+}
+
+// IncrBy is a shorthand for b.IncrInt64(int64(n)).
+func (b *Bar) IncrBy(n int) {
+ b.IncrInt64(int64(n))
+}
+
+// IncrInt64 increments progress by amount of n.
+func (b *Bar) IncrInt64(n int64) {
+ select {
+ case b.operateState <- func(s *bState) {
+ s.iterated = true
+ s.lastN = n
+ s.current += n
+ if s.triggerComplete && s.current >= s.total {
+ s.current = s.total
+ s.completed = true
+ go b.refreshTillShutdown()
+ }
+ }:
+ case <-b.done:
+ }
+}
+
+// DecoratorEwmaUpdate updates all EWMA based decorators. Should be
+// called on each iteration, because EWMA's unit of measure is an
+// iteration's duration. Panics if called before *Bar.Incr... family
+// methods.
+func (b *Bar) DecoratorEwmaUpdate(dur time.Duration) {
+ select {
+ case b.operateState <- func(s *bState) {
+ ewmaIterationUpdate(false, s, dur)
+ }:
+ case <-b.done:
+ ewmaIterationUpdate(true, b.cacheState, dur)
+ }
+}
+
+// DecoratorAverageAdjust adjusts all average based decorators. Call
+// if you need to adjust start time of all average based decorators
+// or after progress resume.
+func (b *Bar) DecoratorAverageAdjust(start time.Time) {
+ select {
+ case b.operateState <- func(s *bState) {
+ for _, d := range s.averageDecorators {
+ d.AverageAdjust(start)
+ }
+ }:
+ case <-b.done:
+ }
+}
+
+// SetPriority changes bar's order among multiple bars. Zero is highest
+// priority, i.e. bar will be on top. If you don't need to set priority
+// dynamically, better use BarPriority option.
+func (b *Bar) SetPriority(priority int) {
+ select {
+ case <-b.done:
+ default:
+ b.container.setBarPriority(b, priority)
+ }
+}
+
+// Abort interrupts bar's running goroutine. Call this, if you'd like
+// to stop/remove bar before completion event. It has no effect after
+// completion event. If drop is true bar will be removed as well.
+func (b *Bar) Abort(drop bool) {
+ select {
+ case <-b.done:
+ default:
+ if drop {
+ b.container.dropBar(b)
+ }
+ b.cancel()
+ }
+}
+
+// Completed reports whether the bar is in completed state.
+func (b *Bar) Completed() bool {
+ select {
+ case b.operateState <- func(s *bState) { b.completed <- s.completed }:
+ return <-b.completed
+ case <-b.done:
+ return true
+ }
+}
+
+func (b *Bar) serve(ctx context.Context, s *bState) {
+ defer b.container.bwg.Done()
+ for {
+ select {
+ case op := <-b.operateState:
+ op(s)
+ case <-ctx.Done():
+ b.cacheState = s
+ close(b.done)
+ // Notifying decorators about shutdown event
+ for _, sl := range s.shutdownListeners {
+ sl.Shutdown()
+ }
+ return
+ }
+ }
+}
+
+func (b *Bar) render(tw int) {
+ select {
+ case b.operateState <- func(s *bState) {
+ stat := newStatistics(tw, s)
+ defer func() {
+ // recovering if user defined decorator panics for example
+ if p := recover(); p != nil {
+ if b.recoveredPanic == nil {
+ s.extender = makePanicExtender(p)
+ b.toShutdown = !b.toShutdown
+ b.recoveredPanic = p
+ }
+ frame, lines := s.extender(nil, s.reqWidth, stat)
+ b.extendedLines = lines
+ b.frameCh <- frame
+ b.dlogger.Println(p)
+ }
+ s.completeFlushed = s.completed
+ }()
+ frame, lines := s.extender(s.draw(stat), s.reqWidth, stat)
+ b.extendedLines = lines
+ b.toShutdown = s.completed && !s.completeFlushed
+ b.frameCh <- frame
+ }:
+ case <-b.done:
+ s := b.cacheState
+ stat := newStatistics(tw, s)
+ var r io.Reader
+ if b.recoveredPanic == nil {
+ r = s.draw(stat)
+ }
+ frame, lines := s.extender(r, s.reqWidth, stat)
+ b.extendedLines = lines
+ b.frameCh <- frame
+ }
+}
+
+func (b *Bar) subscribeDecorators() {
+ var averageDecorators []decor.AverageDecorator
+ var ewmaDecorators []decor.EwmaDecorator
+ var shutdownListeners []decor.ShutdownListener
+ b.TraverseDecorators(func(d decor.Decorator) {
+ if d, ok := d.(decor.AverageDecorator); ok {
+ averageDecorators = append(averageDecorators, d)
+ }
+ if d, ok := d.(decor.EwmaDecorator); ok {
+ ewmaDecorators = append(ewmaDecorators, d)
+ }
+ if d, ok := d.(decor.ShutdownListener); ok {
+ shutdownListeners = append(shutdownListeners, d)
+ }
+ })
+ select {
+ case b.operateState <- func(s *bState) {
+ s.averageDecorators = averageDecorators
+ s.ewmaDecorators = ewmaDecorators
+ s.shutdownListeners = shutdownListeners
+ }:
+ b.hasEwmaDecorators = len(ewmaDecorators) != 0
+ case <-b.done:
+ }
+}
+
+func (b *Bar) refreshTillShutdown() {
+ for {
+ select {
+ case b.container.refreshCh <- time.Now():
+ case <-b.done:
+ return
+ }
+ }
+}
+
+func (b *Bar) wSyncTable() [][]chan int {
+ select {
+ case b.operateState <- func(s *bState) { b.syncTableCh <- s.wSyncTable() }:
+ return <-b.syncTableCh
+ case <-b.done:
+ return b.cacheState.wSyncTable()
+ }
+}
+
+func (s *bState) draw(stat decor.Statistics) io.Reader {
+ if !s.trimSpace {
+ stat.AvailableWidth -= 2
+ s.bufB.WriteByte(' ')
+ defer s.bufB.WriteByte(' ')
+ }
+
+ nlr := strings.NewReader("\n")
+ tw := stat.AvailableWidth
+ for _, d := range s.pDecorators {
+ str := d.Decor(stat)
+ stat.AvailableWidth -= runewidth.StringWidth(stripansi.Strip(str))
+ s.bufP.WriteString(str)
+ }
+ if stat.AvailableWidth <= 0 {
+ trunc := strings.NewReader(runewidth.Truncate(stripansi.Strip(s.bufP.String()), tw, "…"))
+ s.bufP.Reset()
+ return io.MultiReader(trunc, s.bufB, nlr)
+ }
+
+ tw = stat.AvailableWidth
+ for _, d := range s.aDecorators {
+ str := d.Decor(stat)
+ stat.AvailableWidth -= runewidth.StringWidth(stripansi.Strip(str))
+ s.bufA.WriteString(str)
+ }
+ if stat.AvailableWidth <= 0 {
+ trunc := strings.NewReader(runewidth.Truncate(stripansi.Strip(s.bufA.String()), tw, "…"))
+ s.bufA.Reset()
+ return io.MultiReader(s.bufP, s.bufB, trunc, nlr)
+ }
+
+ s.filler.Fill(s.bufB, s.reqWidth, stat)
+
+ return io.MultiReader(s.bufP, s.bufB, s.bufA, nlr)
+}
+
+func (s *bState) wSyncTable() [][]chan int {
+ columns := make([]chan int, 0, len(s.pDecorators)+len(s.aDecorators))
+ var pCount int
+ for _, d := range s.pDecorators {
+ if ch, ok := d.Sync(); ok {
+ columns = append(columns, ch)
+ pCount++
+ }
+ }
+ var aCount int
+ for _, d := range s.aDecorators {
+ if ch, ok := d.Sync(); ok {
+ columns = append(columns, ch)
+ aCount++
+ }
+ }
+ table := make([][]chan int, 2)
+ table[0] = columns[0:pCount]
+ table[1] = columns[pCount : pCount+aCount : pCount+aCount]
+ return table
+}
+
+func newStatistics(tw int, s *bState) decor.Statistics {
+ return decor.Statistics{
+ ID: s.id,
+ AvailableWidth: tw,
+ Total: s.total,
+ Current: s.current,
+ Refill: s.refill,
+ Completed: s.completeFlushed,
+ }
+}
+
+func extractBaseDecorator(d decor.Decorator) decor.Decorator {
+ if d, ok := d.(decor.Wrapper); ok {
+ return extractBaseDecorator(d.Base())
+ }
+ return d
+}
+
+func ewmaIterationUpdate(done bool, s *bState, dur time.Duration) {
+ if !done && !s.iterated {
+ panic("increment required before ewma iteration update")
+ } else {
+ s.iterated = false
+ }
+ for _, d := range s.ewmaDecorators {
+ d.EwmaUpdate(s.lastN, dur)
+ }
+}
+
+func makePanicExtender(p interface{}) extenderFunc {
+ pstr := fmt.Sprint(p)
+ stack := debug.Stack()
+ stackLines := bytes.Count(stack, []byte("\n"))
+ return func(_ io.Reader, _ int, st decor.Statistics) (io.Reader, int) {
+ mr := io.MultiReader(
+ strings.NewReader(runewidth.Truncate(pstr, st.AvailableWidth, "…")),
+ strings.NewReader(fmt.Sprintf("\n%#v\n", st)),
+ bytes.NewReader(stack),
+ )
+ return mr, stackLines + 1
+ }
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/bar_filler.go b/vendor/github.com/vbauerster/mpb/v6/bar_filler.go
new file mode 100644
index 000000000..c8cedaa4a
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/bar_filler.go
@@ -0,0 +1,31 @@
+package mpb
+
+import (
+ "io"
+
+ "github.com/vbauerster/mpb/v6/decor"
+)
+
+// BarFiller interface.
+// Bar (without decorators) renders itself by calling BarFiller's Fill method.
+//
+// reqWidth is requested width, set by `func WithWidth(int) ContainerOption`.
+// If not set, it defaults to terminal width.
+//
+// Default implementations can be obtained via:
+//
+// func NewBarFiller(style string) BarFiller
+// func NewBarFillerRev(style string) BarFiller
+// func NewBarFillerPick(style string, rev bool) BarFiller
+// func NewSpinnerFiller(style []string, alignment SpinnerAlignment) BarFiller
+//
+type BarFiller interface {
+ Fill(w io.Writer, reqWidth int, stat decor.Statistics)
+}
+
+// BarFillerFunc is function type adapter to convert function into BarFiller.
+type BarFillerFunc func(w io.Writer, reqWidth int, stat decor.Statistics)
+
+func (f BarFillerFunc) Fill(w io.Writer, reqWidth int, stat decor.Statistics) {
+ f(w, reqWidth, stat)
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/bar_filler_bar.go b/vendor/github.com/vbauerster/mpb/v6/bar_filler_bar.go
new file mode 100644
index 000000000..50494485e
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/bar_filler_bar.go
@@ -0,0 +1,191 @@
+package mpb
+
+import (
+ "bytes"
+ "io"
+ "unicode/utf8"
+
+ "github.com/mattn/go-runewidth"
+ "github.com/rivo/uniseg"
+ "github.com/vbauerster/mpb/v6/decor"
+ "github.com/vbauerster/mpb/v6/internal"
+)
+
+const (
+ rLeft = iota
+ rFill
+ rTip
+ rSpace
+ rRight
+ rRevTip
+ rRefill
+)
+
+// BarDefaultStyle is a style for rendering a progress bar.
+// It consist of 7 ordered runes:
+//
+// '1st rune' stands for left boundary rune
+//
+// '2nd rune' stands for fill rune
+//
+// '3rd rune' stands for tip rune
+//
+// '4th rune' stands for space rune
+//
+// '5th rune' stands for right boundary rune
+//
+// '6th rune' stands for reverse tip rune
+//
+// '7th rune' stands for refill rune
+//
+const BarDefaultStyle string = "[=>-]<+"
+
+type barFiller struct {
+ format [][]byte
+ rwidth []int
+ tip []byte
+ refill int64
+ reverse bool
+ flush func(io.Writer, *space, [][]byte)
+}
+
+type space struct {
+ space []byte
+ rwidth int
+ count int
+}
+
+// NewBarFiller returns a BarFiller implementation which renders a
+// progress bar in regular direction. If style is empty string,
+// BarDefaultStyle is applied. To be used with `*Progress.Add(...)
+// *Bar` method.
+func NewBarFiller(style string) BarFiller {
+ return newBarFiller(style, false)
+}
+
+// NewBarFillerRev returns a BarFiller implementation which renders a
+// progress bar in reverse direction. If style is empty string,
+// BarDefaultStyle is applied. To be used with `*Progress.Add(...)
+// *Bar` method.
+func NewBarFillerRev(style string) BarFiller {
+ return newBarFiller(style, true)
+}
+
+// NewBarFillerPick pick between regular and reverse BarFiller implementation
+// based on rev param. To be used with `*Progress.Add(...) *Bar` method.
+func NewBarFillerPick(style string, rev bool) BarFiller {
+ return newBarFiller(style, rev)
+}
+
+func newBarFiller(style string, rev bool) BarFiller {
+ bf := &barFiller{
+ format: make([][]byte, len(BarDefaultStyle)),
+ rwidth: make([]int, len(BarDefaultStyle)),
+ reverse: rev,
+ }
+ bf.parse(BarDefaultStyle)
+ if style != "" && style != BarDefaultStyle {
+ bf.parse(style)
+ }
+ return bf
+}
+
+func (s *barFiller) parse(style string) {
+ if !utf8.ValidString(style) {
+ panic("invalid bar style")
+ }
+ srcFormat := make([][]byte, 0, len(BarDefaultStyle))
+ srcRwidth := make([]int, 0, len(BarDefaultStyle))
+ gr := uniseg.NewGraphemes(style)
+ for gr.Next() {
+ srcFormat = append(srcFormat, gr.Bytes())
+ srcRwidth = append(srcRwidth, runewidth.StringWidth(gr.Str()))
+ }
+ copy(s.format, srcFormat)
+ copy(s.rwidth, srcRwidth)
+ if s.reverse {
+ s.tip = s.format[rRevTip]
+ s.flush = reverseFlush
+ } else {
+ s.tip = s.format[rTip]
+ s.flush = regularFlush
+ }
+}
+
+func (s *barFiller) Fill(w io.Writer, reqWidth int, stat decor.Statistics) {
+ width := internal.CheckRequestedWidth(reqWidth, stat.AvailableWidth)
+ brackets := s.rwidth[rLeft] + s.rwidth[rRight]
+ if width < brackets {
+ return
+ }
+ // don't count brackets as progress
+ width -= brackets
+
+ w.Write(s.format[rLeft])
+ defer w.Write(s.format[rRight])
+
+ cwidth := int(internal.PercentageRound(stat.Total, stat.Current, width))
+ space := &space{
+ space: s.format[rSpace],
+ rwidth: s.rwidth[rSpace],
+ count: width - cwidth,
+ }
+
+ index, refill := 0, 0
+ bb := make([][]byte, cwidth)
+
+ if cwidth > 0 && cwidth != width {
+ bb[index] = s.tip
+ cwidth -= s.rwidth[rTip]
+ index++
+ }
+
+ if stat.Refill > 0 {
+ refill = int(internal.PercentageRound(stat.Total, int64(stat.Refill), width))
+ if refill > cwidth {
+ refill = cwidth
+ }
+ cwidth -= refill
+ }
+
+ for cwidth > 0 {
+ bb[index] = s.format[rFill]
+ cwidth -= s.rwidth[rFill]
+ index++
+ }
+
+ for refill > 0 {
+ bb[index] = s.format[rRefill]
+ refill -= s.rwidth[rRefill]
+ index++
+ }
+
+ if cwidth+refill < 0 || space.rwidth > 1 {
+ buf := new(bytes.Buffer)
+ s.flush(buf, space, bb[:index])
+ io.WriteString(w, runewidth.Truncate(buf.String(), width, "…"))
+ return
+ }
+
+ s.flush(w, space, bb)
+}
+
+func regularFlush(w io.Writer, space *space, bb [][]byte) {
+ for i := len(bb) - 1; i >= 0; i-- {
+ w.Write(bb[i])
+ }
+ for space.count > 0 {
+ w.Write(space.space)
+ space.count -= space.rwidth
+ }
+}
+
+func reverseFlush(w io.Writer, space *space, bb [][]byte) {
+ for space.count > 0 {
+ w.Write(space.space)
+ space.count -= space.rwidth
+ }
+ for i := 0; i < len(bb); i++ {
+ w.Write(bb[i])
+ }
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/bar_filler_spinner.go b/vendor/github.com/vbauerster/mpb/v6/bar_filler_spinner.go
new file mode 100644
index 000000000..0817b19ec
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/bar_filler_spinner.go
@@ -0,0 +1,65 @@
+package mpb
+
+import (
+ "io"
+ "strings"
+
+ "github.com/mattn/go-runewidth"
+ "github.com/vbauerster/mpb/v6/decor"
+ "github.com/vbauerster/mpb/v6/internal"
+)
+
+// SpinnerAlignment enum.
+type SpinnerAlignment int
+
+// SpinnerAlignment kinds.
+const (
+ SpinnerOnLeft SpinnerAlignment = iota
+ SpinnerOnMiddle
+ SpinnerOnRight
+)
+
+// SpinnerDefaultStyle is a style for rendering a spinner.
+var SpinnerDefaultStyle = []string{"⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"}
+
+type spinnerFiller struct {
+ frames []string
+ count uint
+ alignment SpinnerAlignment
+}
+
+// NewSpinnerFiller returns a BarFiller implementation which renders
+// a spinner. If style is nil or zero length, SpinnerDefaultStyle is
+// applied. To be used with `*Progress.Add(...) *Bar` method.
+func NewSpinnerFiller(style []string, alignment SpinnerAlignment) BarFiller {
+ if len(style) == 0 {
+ style = SpinnerDefaultStyle
+ }
+ filler := &spinnerFiller{
+ frames: style,
+ alignment: alignment,
+ }
+ return filler
+}
+
+func (s *spinnerFiller) Fill(w io.Writer, reqWidth int, stat decor.Statistics) {
+ width := internal.CheckRequestedWidth(reqWidth, stat.AvailableWidth)
+
+ frame := s.frames[s.count%uint(len(s.frames))]
+ frameWidth := runewidth.StringWidth(frame)
+
+ if width < frameWidth {
+ return
+ }
+
+ switch rest := width - frameWidth; s.alignment {
+ case SpinnerOnLeft:
+ io.WriteString(w, frame+strings.Repeat(" ", rest))
+ case SpinnerOnMiddle:
+ str := strings.Repeat(" ", rest/2) + frame + strings.Repeat(" ", rest/2+rest%2)
+ io.WriteString(w, str)
+ case SpinnerOnRight:
+ io.WriteString(w, strings.Repeat(" ", rest)+frame)
+ }
+ s.count++
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/bar_option.go b/vendor/github.com/vbauerster/mpb/v6/bar_option.go
new file mode 100644
index 000000000..e359c110c
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/bar_option.go
@@ -0,0 +1,153 @@
+package mpb
+
+import (
+ "bytes"
+ "io"
+
+ "github.com/vbauerster/mpb/v6/decor"
+ "github.com/vbauerster/mpb/v6/internal"
+)
+
+// BarOption is a func option to alter default behavior of a bar.
+type BarOption func(*bState)
+
+func (s *bState) addDecorators(dest *[]decor.Decorator, decorators ...decor.Decorator) {
+ type mergeWrapper interface {
+ MergeUnwrap() []decor.Decorator
+ }
+ for _, decorator := range decorators {
+ if mw, ok := decorator.(mergeWrapper); ok {
+ *dest = append(*dest, mw.MergeUnwrap()...)
+ }
+ *dest = append(*dest, decorator)
+ }
+}
+
+// AppendDecorators let you inject decorators to the bar's right side.
+func AppendDecorators(decorators ...decor.Decorator) BarOption {
+ return func(s *bState) {
+ s.addDecorators(&s.aDecorators, decorators...)
+ }
+}
+
+// PrependDecorators let you inject decorators to the bar's left side.
+func PrependDecorators(decorators ...decor.Decorator) BarOption {
+ return func(s *bState) {
+ s.addDecorators(&s.pDecorators, decorators...)
+ }
+}
+
+// BarID sets bar id.
+func BarID(id int) BarOption {
+ return func(s *bState) {
+ s.id = id
+ }
+}
+
+// BarWidth sets bar width independent of the container.
+func BarWidth(width int) BarOption {
+ return func(s *bState) {
+ s.reqWidth = width
+ }
+}
+
+// BarQueueAfter queues this (being constructed) bar to relplace
+// runningBar after it has been completed.
+func BarQueueAfter(runningBar *Bar) BarOption {
+ if runningBar == nil {
+ return nil
+ }
+ return func(s *bState) {
+ s.runningBar = runningBar
+ }
+}
+
+// BarRemoveOnComplete removes both bar's filler and its decorators
+// on complete event.
+func BarRemoveOnComplete() BarOption {
+ return func(s *bState) {
+ s.dropOnComplete = true
+ }
+}
+
+// BarFillerClearOnComplete clears bar's filler on complete event.
+// It's shortcut for BarFillerOnComplete("").
+func BarFillerClearOnComplete() BarOption {
+ return BarFillerOnComplete("")
+}
+
+// BarFillerOnComplete replaces bar's filler with message, on complete event.
+func BarFillerOnComplete(message string) BarOption {
+ return BarFillerMiddleware(func(base BarFiller) BarFiller {
+ return BarFillerFunc(func(w io.Writer, reqWidth int, st decor.Statistics) {
+ if st.Completed {
+ io.WriteString(w, message)
+ } else {
+ base.Fill(w, reqWidth, st)
+ }
+ })
+ })
+}
+
+// BarFillerMiddleware provides a way to augment the underlying BarFiller.
+func BarFillerMiddleware(middle func(BarFiller) BarFiller) BarOption {
+ return func(s *bState) {
+ s.middleware = middle
+ }
+}
+
+// BarPriority sets bar's priority. Zero is highest priority, i.e. bar
+// will be on top. If `BarReplaceOnComplete` option is supplied, this
+// option is ignored.
+func BarPriority(priority int) BarOption {
+ return func(s *bState) {
+ s.priority = priority
+ }
+}
+
+// BarExtender provides a way to extend bar to the next new line.
+func BarExtender(filler BarFiller) BarOption {
+ if filler == nil {
+ return nil
+ }
+ return func(s *bState) {
+ s.extender = makeExtenderFunc(filler)
+ }
+}
+
+func makeExtenderFunc(filler BarFiller) extenderFunc {
+ buf := new(bytes.Buffer)
+ return func(r io.Reader, reqWidth int, st decor.Statistics) (io.Reader, int) {
+ filler.Fill(buf, reqWidth, st)
+ return io.MultiReader(r, buf), bytes.Count(buf.Bytes(), []byte("\n"))
+ }
+}
+
+// BarFillerTrim removes leading and trailing space around the underlying BarFiller.
+func BarFillerTrim() BarOption {
+ return func(s *bState) {
+ s.trimSpace = true
+ }
+}
+
+// BarNoPop disables bar pop out of container. Effective when
+// PopCompletedMode of container is enabled.
+func BarNoPop() BarOption {
+ return func(s *bState) {
+ s.noPop = true
+ }
+}
+
+// BarOptional will invoke provided option only when pick is true.
+func BarOptional(option BarOption, pick bool) BarOption {
+ return BarOptOn(option, internal.Predicate(pick))
+}
+
+// BarOptOn will invoke provided option only when higher order predicate
+// evaluates to true.
+func BarOptOn(option BarOption, predicate func() bool) BarOption {
+ if predicate() {
+ return option
+ }
+ return nil
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/container_option.go b/vendor/github.com/vbauerster/mpb/v6/container_option.go
new file mode 100644
index 000000000..b92c7578c
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/container_option.go
@@ -0,0 +1,112 @@
+package mpb
+
+import (
+ "io"
+ "io/ioutil"
+ "sync"
+ "time"
+
+ "github.com/vbauerster/mpb/v6/internal"
+)
+
+// ContainerOption is a func option to alter default behavior of a bar
+// container. Container term refers to a Progress struct which can
+// hold one or more Bars.
+type ContainerOption 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) ContainerOption {
+ return func(s *pState) {
+ s.uwg = wg
+ }
+}
+
+// WithWidth sets container width. If not set it defaults to terminal
+// width. A bar added to the container will inherit its width, unless
+// overridden by `func BarWidth(int) BarOption`.
+func WithWidth(width int) ContainerOption {
+ return func(s *pState) {
+ s.reqWidth = width
+ }
+}
+
+// WithRefreshRate overrides default 120ms refresh rate.
+func WithRefreshRate(d time.Duration) ContainerOption {
+ return func(s *pState) {
+ s.rr = d
+ }
+}
+
+// WithManualRefresh disables internal auto refresh time.Ticker.
+// Refresh will occur upon receive value from provided ch.
+func WithManualRefresh(ch <-chan interface{}) ContainerOption {
+ return func(s *pState) {
+ s.externalRefresh = ch
+ }
+}
+
+// WithRenderDelay delays rendering. By default rendering starts as
+// soon as bar is added, with this option it's possible to delay
+// rendering process by keeping provided chan unclosed. In other words
+// rendering will start as soon as provided chan is closed.
+func WithRenderDelay(ch <-chan struct{}) ContainerOption {
+ return func(s *pState) {
+ s.renderDelay = ch
+ }
+}
+
+// WithShutdownNotifier provided chanel will be closed, after all bars
+// have been rendered.
+func WithShutdownNotifier(ch chan struct{}) ContainerOption {
+ return func(s *pState) {
+ s.shutdownNotifier = ch
+ }
+}
+
+// WithOutput overrides default os.Stdout output. Setting it to nil
+// will effectively disable auto refresh rate and discard any output,
+// useful if you want to disable progress bars with little overhead.
+func WithOutput(w io.Writer) ContainerOption {
+ return func(s *pState) {
+ if w == nil {
+ s.output = ioutil.Discard
+ s.outputDiscarded = true
+ return
+ }
+ s.output = w
+ }
+}
+
+// WithDebugOutput sets debug output.
+func WithDebugOutput(w io.Writer) ContainerOption {
+ if w == nil {
+ return nil
+ }
+ return func(s *pState) {
+ s.debugOut = w
+ }
+}
+
+// PopCompletedMode will pop and stop rendering completed bars.
+func PopCompletedMode() ContainerOption {
+ return func(s *pState) {
+ s.popCompleted = true
+ }
+}
+
+// ContainerOptional will invoke provided option only when pick is true.
+func ContainerOptional(option ContainerOption, pick bool) ContainerOption {
+ return ContainerOptOn(option, internal.Predicate(pick))
+}
+
+// ContainerOptOn will invoke provided option only when higher order
+// predicate evaluates to true.
+func ContainerOptOn(option ContainerOption, predicate func() bool) ContainerOption {
+ if predicate() {
+ return option
+ }
+ return nil
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/cwriter/doc.go b/vendor/github.com/vbauerster/mpb/v6/cwriter/doc.go
new file mode 100644
index 000000000..93c8f8268
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/cwriter/doc.go
@@ -0,0 +1,2 @@
+// Package cwriter is a console writer abstraction for the underlying OS.
+package cwriter
diff --git a/vendor/github.com/vbauerster/mpb/v6/cwriter/util_bsd.go b/vendor/github.com/vbauerster/mpb/v6/cwriter/util_bsd.go
new file mode 100644
index 000000000..4e3564ece
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/cwriter/util_bsd.go
@@ -0,0 +1,7 @@
+// +build darwin dragonfly freebsd netbsd openbsd
+
+package cwriter
+
+import "golang.org/x/sys/unix"
+
+const ioctlReadTermios = unix.TIOCGETA
diff --git a/vendor/github.com/vbauerster/mpb/v6/cwriter/util_linux.go b/vendor/github.com/vbauerster/mpb/v6/cwriter/util_linux.go
new file mode 100644
index 000000000..253f12dd2
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/cwriter/util_linux.go
@@ -0,0 +1,7 @@
+// +build aix linux
+
+package cwriter
+
+import "golang.org/x/sys/unix"
+
+const ioctlReadTermios = unix.TCGETS
diff --git a/vendor/github.com/vbauerster/mpb/v6/cwriter/util_solaris.go b/vendor/github.com/vbauerster/mpb/v6/cwriter/util_solaris.go
new file mode 100644
index 000000000..4b29ff5c0
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/cwriter/util_solaris.go
@@ -0,0 +1,7 @@
+// +build solaris
+
+package cwriter
+
+import "golang.org/x/sys/unix"
+
+const ioctlReadTermios = unix.TCGETA
diff --git a/vendor/github.com/vbauerster/mpb/v6/cwriter/writer.go b/vendor/github.com/vbauerster/mpb/v6/cwriter/writer.go
new file mode 100644
index 000000000..1ade54761
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/cwriter/writer.go
@@ -0,0 +1,84 @@
+package cwriter
+
+import (
+ "bytes"
+ "errors"
+ "io"
+ "os"
+ "strconv"
+)
+
+// ErrNotTTY not a TeleTYpewriter error.
+var ErrNotTTY = errors.New("not a terminal")
+
+// http://ascii-table.com/ansi-escape-sequences.php
+const (
+ escOpen = "\x1b["
+ cuuAndEd = "A\x1b[J"
+)
+
+// Writer is a buffered the writer that updates the terminal. The
+// contents of writer will be flushed when Flush is called.
+type Writer struct {
+ out io.Writer
+ buf bytes.Buffer
+ lineCount int
+ fd int
+ isTerminal bool
+}
+
+// New returns a new Writer with defaults.
+func New(out io.Writer) *Writer {
+ w := &Writer{out: out}
+ if f, ok := out.(*os.File); ok {
+ w.fd = int(f.Fd())
+ w.isTerminal = IsTerminal(w.fd)
+ }
+ return w
+}
+
+// Flush flushes the underlying buffer.
+func (w *Writer) Flush(lineCount int) (err error) {
+ // some terminals interpret 'cursor up 0' as 'cursor up 1'
+ if w.lineCount > 0 {
+ err = w.clearLines()
+ if err != nil {
+ return
+ }
+ }
+ w.lineCount = lineCount
+ _, err = w.buf.WriteTo(w.out)
+ return
+}
+
+// Write appends the contents of p to the underlying buffer.
+func (w *Writer) Write(p []byte) (n int, err error) {
+ return w.buf.Write(p)
+}
+
+// WriteString writes string to the underlying buffer.
+func (w *Writer) WriteString(s string) (n int, err error) {
+ return w.buf.WriteString(s)
+}
+
+// ReadFrom reads from the provided io.Reader and writes to the
+// underlying buffer.
+func (w *Writer) ReadFrom(r io.Reader) (n int64, err error) {
+ return w.buf.ReadFrom(r)
+}
+
+// GetWidth returns width of underlying terminal.
+func (w *Writer) GetWidth() (int, error) {
+ if !w.isTerminal {
+ return -1, ErrNotTTY
+ }
+ tw, _, err := GetSize(w.fd)
+ return tw, err
+}
+
+func (w *Writer) ansiCuuAndEd() (err error) {
+ buf := make([]byte, 8)
+ buf = strconv.AppendInt(buf[:copy(buf, escOpen)], int64(w.lineCount), 10)
+ _, err = w.out.Write(append(buf, cuuAndEd...))
+ return
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/cwriter/writer_posix.go b/vendor/github.com/vbauerster/mpb/v6/cwriter/writer_posix.go
new file mode 100644
index 000000000..f54a5d06b
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/cwriter/writer_posix.go
@@ -0,0 +1,26 @@
+// +build !windows
+
+package cwriter
+
+import (
+ "golang.org/x/sys/unix"
+)
+
+func (w *Writer) clearLines() error {
+ return w.ansiCuuAndEd()
+}
+
+// GetSize returns the dimensions of the given terminal.
+func GetSize(fd int) (width, height int, err error) {
+ ws, err := unix.IoctlGetWinsize(fd, unix.TIOCGWINSZ)
+ if err != nil {
+ return -1, -1, err
+ }
+ return int(ws.Col), int(ws.Row), nil
+}
+
+// IsTerminal returns whether the given file descriptor is a terminal.
+func IsTerminal(fd int) bool {
+ _, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
+ return err == nil
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/cwriter/writer_windows.go b/vendor/github.com/vbauerster/mpb/v6/cwriter/writer_windows.go
new file mode 100644
index 000000000..1a69c81ac
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/cwriter/writer_windows.go
@@ -0,0 +1,73 @@
+// +build windows
+
+package cwriter
+
+import (
+ "unsafe"
+
+ "golang.org/x/sys/windows"
+)
+
+var kernel32 = windows.NewLazySystemDLL("kernel32.dll")
+
+var (
+ procSetConsoleCursorPosition = kernel32.NewProc("SetConsoleCursorPosition")
+ procFillConsoleOutputCharacter = kernel32.NewProc("FillConsoleOutputCharacterW")
+)
+
+func (w *Writer) clearLines() error {
+ if !w.isTerminal {
+ // hope it's cygwin or similar
+ return w.ansiCuuAndEd()
+ }
+
+ var info windows.ConsoleScreenBufferInfo
+ if err := windows.GetConsoleScreenBufferInfo(windows.Handle(w.fd), &info); err != nil {
+ return err
+ }
+
+ info.CursorPosition.Y -= int16(w.lineCount)
+ if info.CursorPosition.Y < 0 {
+ info.CursorPosition.Y = 0
+ }
+ _, _, _ = procSetConsoleCursorPosition.Call(
+ uintptr(w.fd),
+ uintptr(uint32(uint16(info.CursorPosition.Y))<<16|uint32(uint16(info.CursorPosition.X))),
+ )
+
+ // clear the lines
+ cursor := &windows.Coord{
+ X: info.Window.Left,
+ Y: info.CursorPosition.Y,
+ }
+ count := uint32(info.Size.X) * uint32(w.lineCount)
+ _, _, _ = procFillConsoleOutputCharacter.Call(
+ uintptr(w.fd),
+ uintptr(' '),
+ uintptr(count),
+ *(*uintptr)(unsafe.Pointer(cursor)),
+ uintptr(unsafe.Pointer(new(uint32))),
+ )
+ return nil
+}
+
+// GetSize returns the visible dimensions of the given terminal.
+//
+// These dimensions don't include any scrollback buffer height.
+func GetSize(fd int) (width, height int, err error) {
+ var info windows.ConsoleScreenBufferInfo
+ if err := windows.GetConsoleScreenBufferInfo(windows.Handle(fd), &info); err != nil {
+ return 0, 0, err
+ }
+ // terminal.GetSize from crypto/ssh adds "+ 1" to both width and height:
+ // https://go.googlesource.com/crypto/+/refs/heads/release-branch.go1.14/ssh/terminal/util_windows.go#75
+ // but looks like this is a root cause of issue #66, so removing both "+ 1" have fixed it.
+ return int(info.Window.Right - info.Window.Left), int(info.Window.Bottom - info.Window.Top), nil
+}
+
+// IsTerminal returns whether the given file descriptor is a terminal.
+func IsTerminal(fd int) bool {
+ var st uint32
+ err := windows.GetConsoleMode(windows.Handle(fd), &st)
+ return err == nil
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/any.go b/vendor/github.com/vbauerster/mpb/v6/decor/any.go
new file mode 100644
index 000000000..39518f594
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/any.go
@@ -0,0 +1,21 @@
+package decor
+
+// Any decorator displays text, that can be changed during decorator's
+// lifetime via provided DecorFunc.
+//
+// `fn` DecorFunc callback
+//
+// `wcc` optional WC config
+//
+func Any(fn DecorFunc, wcc ...WC) Decorator {
+ return &any{initWC(wcc...), fn}
+}
+
+type any struct {
+ WC
+ fn DecorFunc
+}
+
+func (d *any) Decor(s Statistics) string {
+ return d.FormatMsg(d.fn(s))
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/counters.go b/vendor/github.com/vbauerster/mpb/v6/decor/counters.go
new file mode 100644
index 000000000..4a5343d41
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/counters.go
@@ -0,0 +1,243 @@
+package decor
+
+import (
+ "fmt"
+ "strings"
+)
+
+const (
+ _ = iota
+ UnitKiB
+ UnitKB
+)
+
+// CountersNoUnit is a wrapper around Counters with no unit param.
+func CountersNoUnit(pairFmt string, wcc ...WC) Decorator {
+ return Counters(0, pairFmt, wcc...)
+}
+
+// CountersKibiByte is a wrapper around Counters with predefined unit
+// UnitKiB (bytes/1024).
+func CountersKibiByte(pairFmt string, wcc ...WC) Decorator {
+ return Counters(UnitKiB, pairFmt, wcc...)
+}
+
+// CountersKiloByte is a wrapper around Counters with predefined unit
+// UnitKB (bytes/1000).
+func CountersKiloByte(pairFmt string, wcc ...WC) Decorator {
+ return Counters(UnitKB, pairFmt, wcc...)
+}
+
+// Counters decorator with dynamic unit measure adjustment.
+//
+// `unit` one of [0|UnitKiB|UnitKB] zero for no unit
+//
+// `pairFmt` printf compatible verbs for current and total pair
+//
+// `wcc` optional WC config
+//
+// pairFmt example if unit=UnitKB:
+//
+// pairFmt="%.1f / %.1f" output: "1.0MB / 12.0MB"
+// pairFmt="% .1f / % .1f" output: "1.0 MB / 12.0 MB"
+// pairFmt="%d / %d" output: "1MB / 12MB"
+// pairFmt="% d / % d" output: "1 MB / 12 MB"
+//
+func Counters(unit int, pairFmt string, wcc ...WC) Decorator {
+ producer := func(unit int, pairFmt string) DecorFunc {
+ if pairFmt == "" {
+ pairFmt = "%d / %d"
+ } else if strings.Count(pairFmt, "%") != 2 {
+ panic("expected pairFmt with exactly 2 verbs")
+ }
+ switch unit {
+ case UnitKiB:
+ return func(s Statistics) string {
+ return fmt.Sprintf(pairFmt, SizeB1024(s.Current), SizeB1024(s.Total))
+ }
+ case UnitKB:
+ return func(s Statistics) string {
+ return fmt.Sprintf(pairFmt, SizeB1000(s.Current), SizeB1000(s.Total))
+ }
+ default:
+ return func(s Statistics) string {
+ return fmt.Sprintf(pairFmt, s.Current, s.Total)
+ }
+ }
+ }
+ return Any(producer(unit, pairFmt), wcc...)
+}
+
+// TotalNoUnit is a wrapper around Total with no unit param.
+func TotalNoUnit(format string, wcc ...WC) Decorator {
+ return Total(0, format, wcc...)
+}
+
+// TotalKibiByte is a wrapper around Total with predefined unit
+// UnitKiB (bytes/1024).
+func TotalKibiByte(format string, wcc ...WC) Decorator {
+ return Total(UnitKiB, format, wcc...)
+}
+
+// TotalKiloByte is a wrapper around Total with predefined unit
+// UnitKB (bytes/1000).
+func TotalKiloByte(format string, wcc ...WC) Decorator {
+ return Total(UnitKB, format, wcc...)
+}
+
+// Total decorator with dynamic unit measure adjustment.
+//
+// `unit` one of [0|UnitKiB|UnitKB] zero for no unit
+//
+// `format` printf compatible verb for Total
+//
+// `wcc` optional WC config
+//
+// format example if unit=UnitKiB:
+//
+// format="%.1f" output: "12.0MiB"
+// format="% .1f" output: "12.0 MiB"
+// format="%d" output: "12MiB"
+// format="% d" output: "12 MiB"
+//
+func Total(unit int, format string, wcc ...WC) Decorator {
+ producer := func(unit int, format string) DecorFunc {
+ if format == "" {
+ format = "%d"
+ } else if strings.Count(format, "%") != 1 {
+ panic("expected format with exactly 1 verb")
+ }
+
+ switch unit {
+ case UnitKiB:
+ return func(s Statistics) string {
+ return fmt.Sprintf(format, SizeB1024(s.Total))
+ }
+ case UnitKB:
+ return func(s Statistics) string {
+ return fmt.Sprintf(format, SizeB1000(s.Total))
+ }
+ default:
+ return func(s Statistics) string {
+ return fmt.Sprintf(format, s.Total)
+ }
+ }
+ }
+ return Any(producer(unit, format), wcc...)
+}
+
+// CurrentNoUnit is a wrapper around Current with no unit param.
+func CurrentNoUnit(format string, wcc ...WC) Decorator {
+ return Current(0, format, wcc...)
+}
+
+// CurrentKibiByte is a wrapper around Current with predefined unit
+// UnitKiB (bytes/1024).
+func CurrentKibiByte(format string, wcc ...WC) Decorator {
+ return Current(UnitKiB, format, wcc...)
+}
+
+// CurrentKiloByte is a wrapper around Current with predefined unit
+// UnitKB (bytes/1000).
+func CurrentKiloByte(format string, wcc ...WC) Decorator {
+ return Current(UnitKB, format, wcc...)
+}
+
+// Current decorator with dynamic unit measure adjustment.
+//
+// `unit` one of [0|UnitKiB|UnitKB] zero for no unit
+//
+// `format` printf compatible verb for Current
+//
+// `wcc` optional WC config
+//
+// format example if unit=UnitKiB:
+//
+// format="%.1f" output: "12.0MiB"
+// format="% .1f" output: "12.0 MiB"
+// format="%d" output: "12MiB"
+// format="% d" output: "12 MiB"
+//
+func Current(unit int, format string, wcc ...WC) Decorator {
+ producer := func(unit int, format string) DecorFunc {
+ if format == "" {
+ format = "%d"
+ } else if strings.Count(format, "%") != 1 {
+ panic("expected format with exactly 1 verb")
+ }
+
+ switch unit {
+ case UnitKiB:
+ return func(s Statistics) string {
+ return fmt.Sprintf(format, SizeB1024(s.Current))
+ }
+ case UnitKB:
+ return func(s Statistics) string {
+ return fmt.Sprintf(format, SizeB1000(s.Current))
+ }
+ default:
+ return func(s Statistics) string {
+ return fmt.Sprintf(format, s.Current)
+ }
+ }
+ }
+ return Any(producer(unit, format), wcc...)
+}
+
+// InvertedCurrentNoUnit is a wrapper around InvertedCurrent with no unit param.
+func InvertedCurrentNoUnit(format string, wcc ...WC) Decorator {
+ return InvertedCurrent(0, format, wcc...)
+}
+
+// InvertedCurrentKibiByte is a wrapper around InvertedCurrent with predefined unit
+// UnitKiB (bytes/1024).
+func InvertedCurrentKibiByte(format string, wcc ...WC) Decorator {
+ return InvertedCurrent(UnitKiB, format, wcc...)
+}
+
+// InvertedCurrentKiloByte is a wrapper around InvertedCurrent with predefined unit
+// UnitKB (bytes/1000).
+func InvertedCurrentKiloByte(format string, wcc ...WC) Decorator {
+ return InvertedCurrent(UnitKB, format, wcc...)
+}
+
+// InvertedCurrent decorator with dynamic unit measure adjustment.
+//
+// `unit` one of [0|UnitKiB|UnitKB] zero for no unit
+//
+// `format` printf compatible verb for InvertedCurrent
+//
+// `wcc` optional WC config
+//
+// format example if unit=UnitKiB:
+//
+// format="%.1f" output: "12.0MiB"
+// format="% .1f" output: "12.0 MiB"
+// format="%d" output: "12MiB"
+// format="% d" output: "12 MiB"
+//
+func InvertedCurrent(unit int, format string, wcc ...WC) Decorator {
+ producer := func(unit int, format string) DecorFunc {
+ if format == "" {
+ format = "%d"
+ } else if strings.Count(format, "%") != 1 {
+ panic("expected format with exactly 1 verb")
+ }
+
+ switch unit {
+ case UnitKiB:
+ return func(s Statistics) string {
+ return fmt.Sprintf(format, SizeB1024(s.Total-s.Current))
+ }
+ case UnitKB:
+ return func(s Statistics) string {
+ return fmt.Sprintf(format, SizeB1000(s.Total-s.Current))
+ }
+ default:
+ return func(s Statistics) string {
+ return fmt.Sprintf(format, s.Total-s.Current)
+ }
+ }
+ }
+ return Any(producer(unit, format), wcc...)
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/decorator.go b/vendor/github.com/vbauerster/mpb/v6/decor/decorator.go
new file mode 100644
index 000000000..e81fae367
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/decorator.go
@@ -0,0 +1,191 @@
+package decor
+
+import (
+ "fmt"
+ "time"
+
+ "github.com/acarl005/stripansi"
+ "github.com/mattn/go-runewidth"
+)
+
+const (
+ // DidentRight bit specifies identation direction.
+ // |foo |b | With DidentRight
+ // | foo| b| Without DidentRight
+ DidentRight = 1 << iota
+
+ // DextraSpace bit adds extra space, makes sense with DSyncWidth only.
+ // When DidentRight bit set, the space will be added to the right,
+ // otherwise to the left.
+ DextraSpace
+
+ // DSyncWidth bit enables same column width synchronization.
+ // Effective with multiple bars only.
+ DSyncWidth
+
+ // DSyncWidthR is shortcut for DSyncWidth|DidentRight
+ DSyncWidthR = DSyncWidth | DidentRight
+
+ // DSyncSpace is shortcut for DSyncWidth|DextraSpace
+ DSyncSpace = DSyncWidth | DextraSpace
+
+ // DSyncSpaceR is shortcut for DSyncWidth|DextraSpace|DidentRight
+ DSyncSpaceR = DSyncWidth | DextraSpace | DidentRight
+)
+
+// TimeStyle enum.
+type TimeStyle int
+
+// TimeStyle kinds.
+const (
+ ET_STYLE_GO TimeStyle = iota
+ ET_STYLE_HHMMSS
+ ET_STYLE_HHMM
+ ET_STYLE_MMSS
+)
+
+// Statistics consists of progress related statistics, that Decorator
+// may need.
+type Statistics struct {
+ ID int
+ AvailableWidth int
+ Total int64
+ Current int64
+ Refill int64
+ Completed bool
+}
+
+// Decorator interface.
+// Most of the time there is no need to implement this interface
+// manually, as decor package already provides a wide range of decorators
+// which implement this interface. If however built-in decorators don't
+// meet your needs, you're free to implement your own one by implementing
+// this particular interface. The easy way to go is to convert a
+// `DecorFunc` into a `Decorator` interface by using provided
+// `func Any(DecorFunc, ...WC) Decorator`.
+type Decorator interface {
+ Configurator
+ Synchronizer
+ Decor(Statistics) string
+}
+
+// DecorFunc func type.
+// To be used with `func Any`(DecorFunc, ...WC) Decorator`.
+type DecorFunc func(Statistics) string
+
+// Synchronizer interface.
+// All decorators implement this interface implicitly. Its Sync
+// method exposes width sync channel, if DSyncWidth bit is set.
+type Synchronizer interface {
+ Sync() (chan int, bool)
+}
+
+// Configurator interface.
+type Configurator interface {
+ GetConf() WC
+ SetConf(WC)
+}
+
+// Wrapper interface.
+// If you're implementing custom Decorator by wrapping a built-in one,
+// it is necessary to implement this interface to retain functionality
+// of built-in Decorator.
+type Wrapper interface {
+ Base() Decorator
+}
+
+// EwmaDecorator interface.
+// EWMA based decorators should implement this one.
+type EwmaDecorator interface {
+ EwmaUpdate(int64, time.Duration)
+}
+
+// AverageDecorator interface.
+// Average decorators should implement this interface to provide start
+// time adjustment facility, for resume-able tasks.
+type AverageDecorator interface {
+ AverageAdjust(time.Time)
+}
+
+// ShutdownListener interface.
+// If decorator needs to be notified once upon bar shutdown event, so
+// this is the right interface to implement.
+type ShutdownListener interface {
+ Shutdown()
+}
+
+// Global convenience instances of WC with sync width bit set.
+// To be used with multiple bars only, i.e. not effective for single bar usage.
+var (
+ WCSyncWidth = WC{C: DSyncWidth}
+ WCSyncWidthR = WC{C: DSyncWidthR}
+ WCSyncSpace = WC{C: DSyncSpace}
+ WCSyncSpaceR = WC{C: DSyncSpaceR}
+)
+
+// WC is a struct with two public fields W and C, both of int type.
+// W represents width and C represents bit set of width related config.
+// A decorator should embed WC, to enable width synchronization.
+type WC struct {
+ W int
+ C int
+ fill func(s string, w int) string
+ wsync chan int
+}
+
+// FormatMsg formats final message according to WC.W and WC.C.
+// Should be called by any Decorator implementation.
+func (wc *WC) FormatMsg(msg string) string {
+ pureWidth := runewidth.StringWidth(msg)
+ stripWidth := runewidth.StringWidth(stripansi.Strip(msg))
+ maxCell := wc.W
+ if (wc.C & DSyncWidth) != 0 {
+ cellCount := stripWidth
+ if (wc.C & DextraSpace) != 0 {
+ cellCount++
+ }
+ wc.wsync <- cellCount
+ maxCell = <-wc.wsync
+ }
+ return wc.fill(msg, maxCell+(pureWidth-stripWidth))
+}
+
+// Init initializes width related config.
+func (wc *WC) Init() WC {
+ wc.fill = runewidth.FillLeft
+ if (wc.C & DidentRight) != 0 {
+ wc.fill = runewidth.FillRight
+ }
+ if (wc.C & DSyncWidth) != 0 {
+ // it's deliberate choice to override wsync on each Init() call,
+ // this way globals like WCSyncSpace can be reused
+ wc.wsync = make(chan int)
+ }
+ return *wc
+}
+
+// Sync is implementation of Synchronizer interface.
+func (wc *WC) Sync() (chan int, bool) {
+ if (wc.C&DSyncWidth) != 0 && wc.wsync == nil {
+ panic(fmt.Sprintf("%T is not initialized", wc))
+ }
+ return wc.wsync, (wc.C & DSyncWidth) != 0
+}
+
+// GetConf is implementation of Configurator interface.
+func (wc *WC) GetConf() WC {
+ return *wc
+}
+
+// SetConf is implementation of Configurator interface.
+func (wc *WC) SetConf(conf WC) {
+ *wc = conf.Init()
+}
+
+func initWC(wcc ...WC) WC {
+ var wc WC
+ for _, nwc := range wcc {
+ wc = nwc
+ }
+ return wc.Init()
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/doc.go b/vendor/github.com/vbauerster/mpb/v6/decor/doc.go
new file mode 100644
index 000000000..bfbb82e11
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/doc.go
@@ -0,0 +1,20 @@
+// Package decor provides common decorators for "github.com/vbauerster/mpb/v6" module.
+/*
+ Some decorators returned by this package might have a closure state. It is ok to use
+ decorators concurrently, unless you share the same decorator among multiple
+ *mpb.Bar instances. To avoid data races, create new decorator per *mpb.Bar instance.
+
+ Don't:
+
+ p := mpb.New()
+ name := decor.Name("bar")
+ p.AddBar(100, mpb.AppendDecorators(name))
+ p.AddBar(100, mpb.AppendDecorators(name))
+
+ Do:
+
+ p := mpb.New()
+ p.AddBar(100, mpb.AppendDecorators(decor.Name("bar1")))
+ p.AddBar(100, mpb.AppendDecorators(decor.Name("bar2")))
+*/
+package decor
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/elapsed.go b/vendor/github.com/vbauerster/mpb/v6/decor/elapsed.go
new file mode 100644
index 000000000..e389f1581
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/elapsed.go
@@ -0,0 +1,35 @@
+package decor
+
+import (
+ "time"
+)
+
+// Elapsed decorator. It's wrapper of NewElapsed.
+//
+// `style` one of [ET_STYLE_GO|ET_STYLE_HHMMSS|ET_STYLE_HHMM|ET_STYLE_MMSS]
+//
+// `wcc` optional WC config
+//
+func Elapsed(style TimeStyle, wcc ...WC) Decorator {
+ return NewElapsed(style, time.Now(), wcc...)
+}
+
+// NewElapsed returns elapsed time decorator.
+//
+// `style` one of [ET_STYLE_GO|ET_STYLE_HHMMSS|ET_STYLE_HHMM|ET_STYLE_MMSS]
+//
+// `startTime` start time
+//
+// `wcc` optional WC config
+//
+func NewElapsed(style TimeStyle, startTime time.Time, wcc ...WC) Decorator {
+ var msg string
+ producer := chooseTimeProducer(style)
+ fn := func(s Statistics) string {
+ if !s.Completed {
+ msg = producer(time.Since(startTime))
+ }
+ return msg
+ }
+ return Any(fn, wcc...)
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/eta.go b/vendor/github.com/vbauerster/mpb/v6/decor/eta.go
new file mode 100644
index 000000000..d03caa735
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/eta.go
@@ -0,0 +1,203 @@
+package decor
+
+import (
+ "fmt"
+ "math"
+ "time"
+
+ "github.com/VividCortex/ewma"
+)
+
+// TimeNormalizer interface. Implementors could be passed into
+// MovingAverageETA, in order to affect i.e. normalize its output.
+type TimeNormalizer interface {
+ Normalize(time.Duration) time.Duration
+}
+
+// TimeNormalizerFunc is function type adapter to convert function
+// into TimeNormalizer.
+type TimeNormalizerFunc func(time.Duration) time.Duration
+
+func (f TimeNormalizerFunc) Normalize(src time.Duration) time.Duration {
+ return f(src)
+}
+
+// EwmaETA exponential-weighted-moving-average based ETA decorator.
+// For this decorator to work correctly you have to measure each
+// iteration's duration and pass it to the
+// *Bar.DecoratorEwmaUpdate(time.Duration) method after each increment.
+func EwmaETA(style TimeStyle, age float64, wcc ...WC) Decorator {
+ var average ewma.MovingAverage
+ if age == 0 {
+ average = ewma.NewMovingAverage()
+ } else {
+ average = ewma.NewMovingAverage(age)
+ }
+ return MovingAverageETA(style, NewThreadSafeMovingAverage(average), nil, wcc...)
+}
+
+// MovingAverageETA decorator relies on MovingAverage implementation to calculate its average.
+//
+// `style` one of [ET_STYLE_GO|ET_STYLE_HHMMSS|ET_STYLE_HHMM|ET_STYLE_MMSS]
+//
+// `average` implementation of MovingAverage interface
+//
+// `normalizer` available implementations are [FixedIntervalTimeNormalizer|MaxTolerateTimeNormalizer]
+//
+// `wcc` optional WC config
+//
+func MovingAverageETA(style TimeStyle, average ewma.MovingAverage, normalizer TimeNormalizer, wcc ...WC) Decorator {
+ d := &movingAverageETA{
+ WC: initWC(wcc...),
+ average: average,
+ normalizer: normalizer,
+ producer: chooseTimeProducer(style),
+ }
+ return d
+}
+
+type movingAverageETA struct {
+ WC
+ average ewma.MovingAverage
+ normalizer TimeNormalizer
+ producer func(time.Duration) string
+}
+
+func (d *movingAverageETA) Decor(s Statistics) string {
+ v := math.Round(d.average.Value())
+ remaining := time.Duration((s.Total - s.Current) * int64(v))
+ if d.normalizer != nil {
+ remaining = d.normalizer.Normalize(remaining)
+ }
+ return d.FormatMsg(d.producer(remaining))
+}
+
+func (d *movingAverageETA) EwmaUpdate(n int64, dur time.Duration) {
+ durPerItem := float64(dur) / float64(n)
+ if math.IsInf(durPerItem, 0) || math.IsNaN(durPerItem) {
+ return
+ }
+ d.average.Add(durPerItem)
+}
+
+// AverageETA decorator. It's wrapper of NewAverageETA.
+//
+// `style` one of [ET_STYLE_GO|ET_STYLE_HHMMSS|ET_STYLE_HHMM|ET_STYLE_MMSS]
+//
+// `wcc` optional WC config
+//
+func AverageETA(style TimeStyle, wcc ...WC) Decorator {
+ return NewAverageETA(style, time.Now(), nil, wcc...)
+}
+
+// NewAverageETA decorator with user provided start time.
+//
+// `style` one of [ET_STYLE_GO|ET_STYLE_HHMMSS|ET_STYLE_HHMM|ET_STYLE_MMSS]
+//
+// `startTime` start time
+//
+// `normalizer` available implementations are [FixedIntervalTimeNormalizer|MaxTolerateTimeNormalizer]
+//
+// `wcc` optional WC config
+//
+func NewAverageETA(style TimeStyle, startTime time.Time, normalizer TimeNormalizer, wcc ...WC) Decorator {
+ d := &averageETA{
+ WC: initWC(wcc...),
+ startTime: startTime,
+ normalizer: normalizer,
+ producer: chooseTimeProducer(style),
+ }
+ return d
+}
+
+type averageETA struct {
+ WC
+ startTime time.Time
+ normalizer TimeNormalizer
+ producer func(time.Duration) string
+}
+
+func (d *averageETA) Decor(s Statistics) string {
+ var remaining time.Duration
+ if s.Current != 0 {
+ durPerItem := float64(time.Since(d.startTime)) / float64(s.Current)
+ durPerItem = math.Round(durPerItem)
+ remaining = time.Duration((s.Total - s.Current) * int64(durPerItem))
+ if d.normalizer != nil {
+ remaining = d.normalizer.Normalize(remaining)
+ }
+ }
+ return d.FormatMsg(d.producer(remaining))
+}
+
+func (d *averageETA) AverageAdjust(startTime time.Time) {
+ d.startTime = startTime
+}
+
+// MaxTolerateTimeNormalizer returns implementation of TimeNormalizer.
+func MaxTolerateTimeNormalizer(maxTolerate time.Duration) TimeNormalizer {
+ var normalized time.Duration
+ var lastCall time.Time
+ return TimeNormalizerFunc(func(remaining time.Duration) time.Duration {
+ if diff := normalized - remaining; diff <= 0 || diff > maxTolerate || remaining < time.Minute {
+ normalized = remaining
+ lastCall = time.Now()
+ return remaining
+ }
+ normalized -= time.Since(lastCall)
+ lastCall = time.Now()
+ return normalized
+ })
+}
+
+// FixedIntervalTimeNormalizer returns implementation of TimeNormalizer.
+func FixedIntervalTimeNormalizer(updInterval int) TimeNormalizer {
+ var normalized time.Duration
+ var lastCall time.Time
+ var count int
+ return TimeNormalizerFunc(func(remaining time.Duration) time.Duration {
+ if count == 0 || remaining < time.Minute {
+ count = updInterval
+ normalized = remaining
+ lastCall = time.Now()
+ return remaining
+ }
+ count--
+ normalized -= time.Since(lastCall)
+ lastCall = time.Now()
+ return normalized
+ })
+}
+
+func chooseTimeProducer(style TimeStyle) func(time.Duration) string {
+ switch style {
+ case ET_STYLE_HHMMSS:
+ return func(remaining time.Duration) string {
+ hours := int64(remaining/time.Hour) % 60
+ minutes := int64(remaining/time.Minute) % 60
+ seconds := int64(remaining/time.Second) % 60
+ return fmt.Sprintf("%02d:%02d:%02d", hours, minutes, seconds)
+ }
+ case ET_STYLE_HHMM:
+ return func(remaining time.Duration) string {
+ hours := int64(remaining/time.Hour) % 60
+ minutes := int64(remaining/time.Minute) % 60
+ return fmt.Sprintf("%02d:%02d", hours, minutes)
+ }
+ case ET_STYLE_MMSS:
+ return func(remaining time.Duration) string {
+ hours := int64(remaining/time.Hour) % 60
+ minutes := int64(remaining/time.Minute) % 60
+ seconds := int64(remaining/time.Second) % 60
+ if hours > 0 {
+ return fmt.Sprintf("%02d:%02d:%02d", hours, minutes, seconds)
+ }
+ return fmt.Sprintf("%02d:%02d", minutes, seconds)
+ }
+ default:
+ return func(remaining time.Duration) string {
+ // strip off nanoseconds
+ return ((remaining / time.Second) * time.Second).String()
+ }
+ }
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/merge.go b/vendor/github.com/vbauerster/mpb/v6/decor/merge.go
new file mode 100644
index 000000000..e41406a64
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/merge.go
@@ -0,0 +1,107 @@
+package decor
+
+import (
+ "strings"
+
+ "github.com/acarl005/stripansi"
+ "github.com/mattn/go-runewidth"
+)
+
+// Merge wraps its decorator argument with intention to sync width
+// with several decorators of another bar. Visual example:
+//
+// +----+--------+---------+--------+
+// | B1 | MERGE(D, P1, Pn) |
+// +----+--------+---------+--------+
+// | B2 | D0 | D1 | Dn |
+// +----+--------+---------+--------+
+//
+func Merge(decorator Decorator, placeholders ...WC) Decorator {
+ if _, ok := decorator.Sync(); !ok || len(placeholders) == 0 {
+ return decorator
+ }
+ md := &mergeDecorator{
+ Decorator: decorator,
+ wc: decorator.GetConf(),
+ placeHolders: make([]*placeHolderDecorator, len(placeholders)),
+ }
+ decorator.SetConf(WC{})
+ for i, wc := range placeholders {
+ if (wc.C & DSyncWidth) == 0 {
+ return decorator
+ }
+ md.placeHolders[i] = &placeHolderDecorator{wc.Init()}
+ }
+ return md
+}
+
+type mergeDecorator struct {
+ Decorator
+ wc WC
+ placeHolders []*placeHolderDecorator
+}
+
+func (d *mergeDecorator) GetConf() WC {
+ return d.wc
+}
+
+func (d *mergeDecorator) SetConf(conf WC) {
+ d.wc = conf.Init()
+}
+
+func (d *mergeDecorator) MergeUnwrap() []Decorator {
+ decorators := make([]Decorator, len(d.placeHolders))
+ for i, ph := range d.placeHolders {
+ decorators[i] = ph
+ }
+ return decorators
+}
+
+func (d *mergeDecorator) Sync() (chan int, bool) {
+ return d.wc.Sync()
+}
+
+func (d *mergeDecorator) Base() Decorator {
+ return d.Decorator
+}
+
+func (d *mergeDecorator) Decor(s Statistics) string {
+ msg := d.Decorator.Decor(s)
+ pureWidth := runewidth.StringWidth(msg)
+ stripWidth := runewidth.StringWidth(stripansi.Strip(msg))
+ cellCount := stripWidth
+ if (d.wc.C & DextraSpace) != 0 {
+ cellCount++
+ }
+
+ total := runewidth.StringWidth(d.placeHolders[0].FormatMsg(""))
+ pw := (cellCount - total) / len(d.placeHolders)
+ rem := (cellCount - total) % len(d.placeHolders)
+
+ var diff int
+ for i := 1; i < len(d.placeHolders); i++ {
+ ph := d.placeHolders[i]
+ width := pw - diff
+ if (ph.WC.C & DextraSpace) != 0 {
+ width--
+ if width < 0 {
+ width = 0
+ }
+ }
+ max := runewidth.StringWidth(ph.FormatMsg(strings.Repeat(" ", width)))
+ total += max
+ diff = max - pw
+ }
+
+ d.wc.wsync <- pw + rem
+ max := <-d.wc.wsync
+ return d.wc.fill(msg, max+total+(pureWidth-stripWidth))
+}
+
+type placeHolderDecorator struct {
+ WC
+}
+
+func (d *placeHolderDecorator) Decor(Statistics) string {
+ return ""
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/moving_average.go b/vendor/github.com/vbauerster/mpb/v6/decor/moving_average.go
new file mode 100644
index 000000000..50ac9c393
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/moving_average.go
@@ -0,0 +1,68 @@
+package decor
+
+import (
+ "sort"
+ "sync"
+
+ "github.com/VividCortex/ewma"
+)
+
+type threadSafeMovingAverage struct {
+ ewma.MovingAverage
+ mu sync.Mutex
+}
+
+func (s *threadSafeMovingAverage) Add(value float64) {
+ s.mu.Lock()
+ s.MovingAverage.Add(value)
+ s.mu.Unlock()
+}
+
+func (s *threadSafeMovingAverage) Value() float64 {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ return s.MovingAverage.Value()
+}
+
+func (s *threadSafeMovingAverage) Set(value float64) {
+ s.mu.Lock()
+ s.MovingAverage.Set(value)
+ s.mu.Unlock()
+}
+
+// NewThreadSafeMovingAverage converts provided ewma.MovingAverage
+// into thread safe ewma.MovingAverage.
+func NewThreadSafeMovingAverage(average ewma.MovingAverage) ewma.MovingAverage {
+ if tsma, ok := average.(*threadSafeMovingAverage); ok {
+ return tsma
+ }
+ return &threadSafeMovingAverage{MovingAverage: average}
+}
+
+type medianWindow [3]float64
+
+func (s *medianWindow) Len() int { return len(s) }
+func (s *medianWindow) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
+func (s *medianWindow) Less(i, j int) bool { return s[i] < s[j] }
+
+func (s *medianWindow) Add(value float64) {
+ s[0], s[1] = s[1], s[2]
+ s[2] = value
+}
+
+func (s *medianWindow) Value() float64 {
+ tmp := *s
+ sort.Sort(&tmp)
+ return tmp[1]
+}
+
+func (s *medianWindow) Set(value float64) {
+ for i := 0; i < len(s); i++ {
+ s[i] = value
+ }
+}
+
+// NewMedian is fixed last 3 samples median MovingAverage.
+func NewMedian() ewma.MovingAverage {
+ return NewThreadSafeMovingAverage(new(medianWindow))
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/name.go b/vendor/github.com/vbauerster/mpb/v6/decor/name.go
new file mode 100644
index 000000000..3af311254
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/name.go
@@ -0,0 +1,12 @@
+package decor
+
+// Name decorator displays text that is set once and can't be changed
+// during decorator's lifetime.
+//
+// `str` string to display
+//
+// `wcc` optional WC config
+//
+func Name(str string, wcc ...WC) Decorator {
+ return Any(func(Statistics) string { return str }, wcc...)
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/on_complete.go b/vendor/github.com/vbauerster/mpb/v6/decor/on_complete.go
new file mode 100644
index 000000000..f46b19aba
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/on_complete.go
@@ -0,0 +1,37 @@
+package decor
+
+// OnComplete returns decorator, which wraps provided decorator, with
+// sole purpose to display provided message on complete event.
+//
+// `decorator` Decorator to wrap
+//
+// `message` message to display on complete event
+//
+func OnComplete(decorator Decorator, message string) Decorator {
+ d := &onCompleteWrapper{
+ Decorator: decorator,
+ msg: message,
+ }
+ if md, ok := decorator.(*mergeDecorator); ok {
+ d.Decorator, md.Decorator = md.Decorator, d
+ return md
+ }
+ return d
+}
+
+type onCompleteWrapper struct {
+ Decorator
+ msg string
+}
+
+func (d *onCompleteWrapper) Decor(s Statistics) string {
+ if s.Completed {
+ wc := d.GetConf()
+ return wc.FormatMsg(d.msg)
+ }
+ return d.Decorator.Decor(s)
+}
+
+func (d *onCompleteWrapper) Base() Decorator {
+ return d.Decorator
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/percentage.go b/vendor/github.com/vbauerster/mpb/v6/decor/percentage.go
new file mode 100644
index 000000000..f4922bb52
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/percentage.go
@@ -0,0 +1,58 @@
+package decor
+
+import (
+ "fmt"
+ "io"
+ "strconv"
+
+ "github.com/vbauerster/mpb/v6/internal"
+)
+
+type percentageType float64
+
+func (s percentageType) Format(st fmt.State, verb rune) {
+ var prec int
+ switch verb {
+ case 'd':
+ case 's':
+ prec = -1
+ default:
+ if p, ok := st.Precision(); ok {
+ prec = p
+ } else {
+ prec = 6
+ }
+ }
+
+ io.WriteString(st, strconv.FormatFloat(float64(s), 'f', prec, 64))
+
+ if st.Flag(' ') {
+ io.WriteString(st, " ")
+ }
+ io.WriteString(st, "%")
+}
+
+// Percentage returns percentage decorator. It's a wrapper of NewPercentage.
+func Percentage(wcc ...WC) Decorator {
+ return NewPercentage("% d", wcc...)
+}
+
+// NewPercentage percentage decorator with custom format string.
+//
+// format examples:
+//
+// format="%.1f" output: "1.0%"
+// format="% .1f" output: "1.0 %"
+// format="%d" output: "1%"
+// format="% d" output: "1 %"
+//
+func NewPercentage(format string, wcc ...WC) Decorator {
+ if format == "" {
+ format = "% d"
+ }
+ f := func(s Statistics) string {
+ p := internal.Percentage(s.Total, s.Current, 100)
+ return fmt.Sprintf(format, percentageType(p))
+ }
+ return Any(f, wcc...)
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/size_type.go b/vendor/github.com/vbauerster/mpb/v6/decor/size_type.go
new file mode 100644
index 000000000..e4b974058
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/size_type.go
@@ -0,0 +1,109 @@
+package decor
+
+import (
+ "fmt"
+ "io"
+ "math"
+ "strconv"
+)
+
+//go:generate stringer -type=SizeB1024 -trimprefix=_i
+//go:generate stringer -type=SizeB1000 -trimprefix=_
+
+const (
+ _ib SizeB1024 = iota + 1
+ _iKiB SizeB1024 = 1 << (iota * 10)
+ _iMiB
+ _iGiB
+ _iTiB
+)
+
+// SizeB1024 named type, which implements fmt.Formatter interface. It
+// adjusts its value according to byte size multiple by 1024 and appends
+// appropriate size marker (KiB, MiB, GiB, TiB).
+type SizeB1024 int64
+
+func (self SizeB1024) Format(st fmt.State, verb rune) {
+ var prec int
+ switch verb {
+ case 'd':
+ case 's':
+ prec = -1
+ default:
+ if p, ok := st.Precision(); ok {
+ prec = p
+ } else {
+ prec = 6
+ }
+ }
+
+ var unit SizeB1024
+ switch {
+ case self < _iKiB:
+ unit = _ib
+ case self < _iMiB:
+ unit = _iKiB
+ case self < _iGiB:
+ unit = _iMiB
+ case self < _iTiB:
+ unit = _iGiB
+ case self <= math.MaxInt64:
+ unit = _iTiB
+ }
+
+ io.WriteString(st, strconv.FormatFloat(float64(self)/float64(unit), 'f', prec, 64))
+
+ if st.Flag(' ') {
+ io.WriteString(st, " ")
+ }
+ io.WriteString(st, unit.String())
+}
+
+const (
+ _b SizeB1000 = 1
+ _KB SizeB1000 = _b * 1000
+ _MB SizeB1000 = _KB * 1000
+ _GB SizeB1000 = _MB * 1000
+ _TB SizeB1000 = _GB * 1000
+)
+
+// SizeB1000 named type, which implements fmt.Formatter interface. It
+// adjusts its value according to byte size multiple by 1000 and appends
+// appropriate size marker (KB, MB, GB, TB).
+type SizeB1000 int64
+
+func (self SizeB1000) Format(st fmt.State, verb rune) {
+ var prec int
+ switch verb {
+ case 'd':
+ case 's':
+ prec = -1
+ default:
+ if p, ok := st.Precision(); ok {
+ prec = p
+ } else {
+ prec = 6
+ }
+ }
+
+ var unit SizeB1000
+ switch {
+ case self < _KB:
+ unit = _b
+ case self < _MB:
+ unit = _KB
+ case self < _GB:
+ unit = _MB
+ case self < _TB:
+ unit = _GB
+ case self <= math.MaxInt64:
+ unit = _TB
+ }
+
+ io.WriteString(st, strconv.FormatFloat(float64(self)/float64(unit), 'f', prec, 64))
+
+ if st.Flag(' ') {
+ io.WriteString(st, " ")
+ }
+ io.WriteString(st, unit.String())
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/sizeb1000_string.go b/vendor/github.com/vbauerster/mpb/v6/decor/sizeb1000_string.go
new file mode 100644
index 000000000..3f32ef715
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/sizeb1000_string.go
@@ -0,0 +1,41 @@
+// Code generated by "stringer -type=SizeB1000 -trimprefix=_"; DO NOT EDIT.
+
+package decor
+
+import "strconv"
+
+func _() {
+ // An "invalid array index" compiler error signifies that the constant values have changed.
+ // Re-run the stringer command to generate them again.
+ var x [1]struct{}
+ _ = x[_b-1]
+ _ = x[_KB-1000]
+ _ = x[_MB-1000000]
+ _ = x[_GB-1000000000]
+ _ = x[_TB-1000000000000]
+}
+
+const (
+ _SizeB1000_name_0 = "b"
+ _SizeB1000_name_1 = "KB"
+ _SizeB1000_name_2 = "MB"
+ _SizeB1000_name_3 = "GB"
+ _SizeB1000_name_4 = "TB"
+)
+
+func (i SizeB1000) String() string {
+ switch {
+ case i == 1:
+ return _SizeB1000_name_0
+ case i == 1000:
+ return _SizeB1000_name_1
+ case i == 1000000:
+ return _SizeB1000_name_2
+ case i == 1000000000:
+ return _SizeB1000_name_3
+ case i == 1000000000000:
+ return _SizeB1000_name_4
+ default:
+ return "SizeB1000(" + strconv.FormatInt(int64(i), 10) + ")"
+ }
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/sizeb1024_string.go b/vendor/github.com/vbauerster/mpb/v6/decor/sizeb1024_string.go
new file mode 100644
index 000000000..9fca66cc7
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/sizeb1024_string.go
@@ -0,0 +1,41 @@
+// Code generated by "stringer -type=SizeB1024 -trimprefix=_i"; DO NOT EDIT.
+
+package decor
+
+import "strconv"
+
+func _() {
+ // An "invalid array index" compiler error signifies that the constant values have changed.
+ // Re-run the stringer command to generate them again.
+ var x [1]struct{}
+ _ = x[_ib-1]
+ _ = x[_iKiB-1024]
+ _ = x[_iMiB-1048576]
+ _ = x[_iGiB-1073741824]
+ _ = x[_iTiB-1099511627776]
+}
+
+const (
+ _SizeB1024_name_0 = "b"
+ _SizeB1024_name_1 = "KiB"
+ _SizeB1024_name_2 = "MiB"
+ _SizeB1024_name_3 = "GiB"
+ _SizeB1024_name_4 = "TiB"
+)
+
+func (i SizeB1024) String() string {
+ switch {
+ case i == 1:
+ return _SizeB1024_name_0
+ case i == 1024:
+ return _SizeB1024_name_1
+ case i == 1048576:
+ return _SizeB1024_name_2
+ case i == 1073741824:
+ return _SizeB1024_name_3
+ case i == 1099511627776:
+ return _SizeB1024_name_4
+ default:
+ return "SizeB1024(" + strconv.FormatInt(int64(i), 10) + ")"
+ }
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/speed.go b/vendor/github.com/vbauerster/mpb/v6/decor/speed.go
new file mode 100644
index 000000000..634edabfd
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/speed.go
@@ -0,0 +1,171 @@
+package decor
+
+import (
+ "fmt"
+ "io"
+ "math"
+ "time"
+
+ "github.com/VividCortex/ewma"
+)
+
+// FmtAsSpeed adds "/s" to the end of the input formatter. To be
+// used with SizeB1000 or SizeB1024 types, for example:
+//
+// fmt.Printf("%.1f", FmtAsSpeed(SizeB1024(2048)))
+//
+func FmtAsSpeed(input fmt.Formatter) fmt.Formatter {
+ return &speedFormatter{input}
+}
+
+type speedFormatter struct {
+ fmt.Formatter
+}
+
+func (self *speedFormatter) Format(st fmt.State, verb rune) {
+ self.Formatter.Format(st, verb)
+ io.WriteString(st, "/s")
+}
+
+// EwmaSpeed exponential-weighted-moving-average based speed decorator.
+// For this decorator to work correctly you have to measure each
+// iteration's duration and pass it to the
+// *Bar.DecoratorEwmaUpdate(time.Duration) method after each increment.
+func EwmaSpeed(unit int, format string, age float64, wcc ...WC) Decorator {
+ var average ewma.MovingAverage
+ if age == 0 {
+ average = ewma.NewMovingAverage()
+ } else {
+ average = ewma.NewMovingAverage(age)
+ }
+ return MovingAverageSpeed(unit, format, NewThreadSafeMovingAverage(average), wcc...)
+}
+
+// MovingAverageSpeed decorator relies on MovingAverage implementation
+// to calculate its average.
+//
+// `unit` one of [0|UnitKiB|UnitKB] zero for no unit
+//
+// `format` printf compatible verb for value, like "%f" or "%d"
+//
+// `average` MovingAverage implementation
+//
+// `wcc` optional WC config
+//
+// format examples:
+//
+// unit=UnitKiB, format="%.1f" output: "1.0MiB/s"
+// unit=UnitKiB, format="% .1f" output: "1.0 MiB/s"
+// unit=UnitKB, format="%.1f" output: "1.0MB/s"
+// unit=UnitKB, format="% .1f" output: "1.0 MB/s"
+//
+func MovingAverageSpeed(unit int, format string, average ewma.MovingAverage, wcc ...WC) Decorator {
+ if format == "" {
+ format = "%.0f"
+ }
+ d := &movingAverageSpeed{
+ WC: initWC(wcc...),
+ average: average,
+ producer: chooseSpeedProducer(unit, format),
+ }
+ return d
+}
+
+type movingAverageSpeed struct {
+ WC
+ producer func(float64) string
+ average ewma.MovingAverage
+ msg string
+}
+
+func (d *movingAverageSpeed) Decor(s Statistics) string {
+ if !s.Completed {
+ var speed float64
+ if v := d.average.Value(); v > 0 {
+ speed = 1 / v
+ }
+ d.msg = d.producer(speed * 1e9)
+ }
+ return d.FormatMsg(d.msg)
+}
+
+func (d *movingAverageSpeed) EwmaUpdate(n int64, dur time.Duration) {
+ durPerByte := float64(dur) / float64(n)
+ if math.IsInf(durPerByte, 0) || math.IsNaN(durPerByte) {
+ return
+ }
+ d.average.Add(durPerByte)
+}
+
+// AverageSpeed decorator with dynamic unit measure adjustment. It's
+// a wrapper of NewAverageSpeed.
+func AverageSpeed(unit int, format string, wcc ...WC) Decorator {
+ return NewAverageSpeed(unit, format, time.Now(), wcc...)
+}
+
+// NewAverageSpeed decorator with dynamic unit measure adjustment and
+// user provided start time.
+//
+// `unit` one of [0|UnitKiB|UnitKB] zero for no unit
+//
+// `format` printf compatible verb for value, like "%f" or "%d"
+//
+// `startTime` start time
+//
+// `wcc` optional WC config
+//
+// format examples:
+//
+// unit=UnitKiB, format="%.1f" output: "1.0MiB/s"
+// unit=UnitKiB, format="% .1f" output: "1.0 MiB/s"
+// unit=UnitKB, format="%.1f" output: "1.0MB/s"
+// unit=UnitKB, format="% .1f" output: "1.0 MB/s"
+//
+func NewAverageSpeed(unit int, format string, startTime time.Time, wcc ...WC) Decorator {
+ if format == "" {
+ format = "%.0f"
+ }
+ d := &averageSpeed{
+ WC: initWC(wcc...),
+ startTime: startTime,
+ producer: chooseSpeedProducer(unit, format),
+ }
+ return d
+}
+
+type averageSpeed struct {
+ WC
+ startTime time.Time
+ producer func(float64) string
+ msg string
+}
+
+func (d *averageSpeed) Decor(s Statistics) string {
+ if !s.Completed {
+ speed := float64(s.Current) / float64(time.Since(d.startTime))
+ d.msg = d.producer(speed * 1e9)
+ }
+
+ return d.FormatMsg(d.msg)
+}
+
+func (d *averageSpeed) AverageAdjust(startTime time.Time) {
+ d.startTime = startTime
+}
+
+func chooseSpeedProducer(unit int, format string) func(float64) string {
+ switch unit {
+ case UnitKiB:
+ return func(speed float64) string {
+ return fmt.Sprintf(format, FmtAsSpeed(SizeB1024(math.Round(speed))))
+ }
+ case UnitKB:
+ return func(speed float64) string {
+ return fmt.Sprintf(format, FmtAsSpeed(SizeB1000(math.Round(speed))))
+ }
+ default:
+ return func(speed float64) string {
+ return fmt.Sprintf(format, speed)
+ }
+ }
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/decor/spinner.go b/vendor/github.com/vbauerster/mpb/v6/decor/spinner.go
new file mode 100644
index 000000000..6871639db
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/decor/spinner.go
@@ -0,0 +1,21 @@
+package decor
+
+var defaultSpinnerStyle = []string{"⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"}
+
+// Spinner returns spinner decorator.
+//
+// `frames` spinner frames, if nil or len==0, default is used
+//
+// `wcc` optional WC config
+func Spinner(frames []string, wcc ...WC) Decorator {
+ if len(frames) == 0 {
+ frames = defaultSpinnerStyle
+ }
+ var count uint
+ f := func(s Statistics) string {
+ frame := frames[count%uint(len(frames))]
+ count++
+ return frame
+ }
+ return Any(f, wcc...)
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/doc.go b/vendor/github.com/vbauerster/mpb/v6/doc.go
new file mode 100644
index 000000000..5ada71774
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/doc.go
@@ -0,0 +1,2 @@
+// Package mpb is a library for rendering progress bars in terminal applications.
+package mpb
diff --git a/vendor/github.com/vbauerster/mpb/v6/go.mod b/vendor/github.com/vbauerster/mpb/v6/go.mod
new file mode 100644
index 000000000..3a3d337d2
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/go.mod
@@ -0,0 +1,11 @@
+module github.com/vbauerster/mpb/v6
+
+require (
+ github.com/VividCortex/ewma v1.1.1
+ github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d
+ github.com/mattn/go-runewidth v0.0.10
+ github.com/rivo/uniseg v0.2.0
+ golang.org/x/sys v0.0.0-20210113181707-4bcb84eeeb78
+)
+
+go 1.14
diff --git a/vendor/github.com/vbauerster/mpb/v6/go.sum b/vendor/github.com/vbauerster/mpb/v6/go.sum
new file mode 100644
index 000000000..1c20f8921
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/go.sum
@@ -0,0 +1,11 @@
+github.com/VividCortex/ewma v1.1.1 h1:MnEK4VOv6n0RSY4vtRe3h11qjxL3+t0B8yOL8iMXdcM=
+github.com/VividCortex/ewma v1.1.1/go.mod h1:2Tkkvm3sRDVXaiyucHiACn4cqf7DpdyLvmxzcbUokwA=
+github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d h1:licZJFw2RwpHMqeKTCYkitsPqHNxTmd4SNR5r94FGM8=
+github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d/go.mod h1:asat636LX7Bqt5lYEZ27JNDcqxfjdBQuJ/MM4CN/Lzo=
+github.com/mattn/go-runewidth v0.0.10 h1:CoZ3S2P7pvtP45xOtBw+/mDL2z0RKI576gSkzRRpdGg=
+github.com/mattn/go-runewidth v0.0.10/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
+github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+golang.org/x/sys v0.0.0-20210113181707-4bcb84eeeb78 h1:nVuTkr9L6Bq62qpUqKo/RnZCFfzDBL0bYo6w9OJUqZY=
+golang.org/x/sys v0.0.0-20210113181707-4bcb84eeeb78/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
diff --git a/vendor/github.com/vbauerster/mpb/v6/internal/percentage.go b/vendor/github.com/vbauerster/mpb/v6/internal/percentage.go
new file mode 100644
index 000000000..a8ef8be12
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/internal/percentage.go
@@ -0,0 +1,19 @@
+package internal
+
+import "math"
+
+// Percentage is a helper function, to calculate percentage.
+func Percentage(total, current int64, width int) float64 {
+ if total <= 0 {
+ return 0
+ }
+ if current >= total {
+ return float64(width)
+ }
+ return float64(int64(width)*current) / float64(total)
+}
+
+// PercentageRound same as Percentage but with math.Round.
+func PercentageRound(total, current int64, width int) float64 {
+ return math.Round(Percentage(total, current, width))
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/internal/predicate.go b/vendor/github.com/vbauerster/mpb/v6/internal/predicate.go
new file mode 100644
index 000000000..1e4dd24d9
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/internal/predicate.go
@@ -0,0 +1,6 @@
+package internal
+
+// Predicate helper for internal use.
+func Predicate(pick bool) func() bool {
+ return func() bool { return pick }
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/internal/width.go b/vendor/github.com/vbauerster/mpb/v6/internal/width.go
new file mode 100644
index 000000000..216320f24
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/internal/width.go
@@ -0,0 +1,10 @@
+package internal
+
+// CheckRequestedWidth checks that requested width doesn't overflow
+// available width
+func CheckRequestedWidth(requested, available int) int {
+ if requested <= 0 || requested >= available {
+ return available
+ }
+ return requested
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/priority_queue.go b/vendor/github.com/vbauerster/mpb/v6/priority_queue.go
new file mode 100644
index 000000000..29d9bd5a8
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/priority_queue.go
@@ -0,0 +1,32 @@
+package mpb
+
+// A priorityQueue implements heap.Interface
+type priorityQueue []*Bar
+
+func (pq priorityQueue) Len() int { return len(pq) }
+
+func (pq priorityQueue) Less(i, j int) bool {
+ return pq[i].priority < pq[j].priority
+}
+
+func (pq priorityQueue) Swap(i, j int) {
+ pq[i], pq[j] = pq[j], pq[i]
+ pq[i].index = i
+ pq[j].index = j
+}
+
+func (pq *priorityQueue) Push(x interface{}) {
+ s := *pq
+ bar := x.(*Bar)
+ bar.index = len(s)
+ s = append(s, bar)
+ *pq = s
+}
+
+func (pq *priorityQueue) Pop() interface{} {
+ s := *pq
+ *pq = s[0 : len(s)-1]
+ bar := s[len(s)-1]
+ bar.index = -1 // for safety
+ return bar
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/progress.go b/vendor/github.com/vbauerster/mpb/v6/progress.go
new file mode 100644
index 000000000..5a3f96243
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/progress.go
@@ -0,0 +1,412 @@
+package mpb
+
+import (
+ "bytes"
+ "container/heap"
+ "context"
+ "fmt"
+ "io"
+ "io/ioutil"
+ "log"
+ "math"
+ "os"
+ "sync"
+ "time"
+
+ "github.com/vbauerster/mpb/v6/cwriter"
+ "github.com/vbauerster/mpb/v6/decor"
+)
+
+const (
+ // default RefreshRate
+ prr = 120 * time.Millisecond
+)
+
+// Progress represents a container that renders one or more progress
+// bars.
+type Progress struct {
+ ctx context.Context
+ uwg *sync.WaitGroup
+ cwg *sync.WaitGroup
+ bwg *sync.WaitGroup
+ operateState chan func(*pState)
+ done chan struct{}
+ refreshCh chan time.Time
+ once sync.Once
+ dlogger *log.Logger
+}
+
+// pState holds bars in its priorityQueue. It gets passed to
+// *Progress.serve(...) monitor goroutine.
+type pState struct {
+ bHeap priorityQueue
+ heapUpdated bool
+ pMatrix map[int][]chan int
+ aMatrix map[int][]chan int
+ barShutdownQueue []*Bar
+
+ // following are provided/overrided by user
+ idCount int
+ reqWidth int
+ popCompleted bool
+ outputDiscarded bool
+ rr time.Duration
+ uwg *sync.WaitGroup
+ externalRefresh <-chan interface{}
+ renderDelay <-chan struct{}
+ shutdownNotifier chan struct{}
+ parkedBars map[*Bar]*Bar
+ output io.Writer
+ debugOut io.Writer
+}
+
+// New creates new Progress container instance. It's not possible to
+// reuse instance after *Progress.Wait() method has been called.
+func New(options ...ContainerOption) *Progress {
+ return NewWithContext(context.Background(), options...)
+}
+
+// NewWithContext creates new Progress container instance with provided
+// context. It's not possible to reuse instance after *Progress.Wait()
+// method has been called.
+func NewWithContext(ctx context.Context, options ...ContainerOption) *Progress {
+ s := &pState{
+ bHeap: priorityQueue{},
+ rr: prr,
+ parkedBars: make(map[*Bar]*Bar),
+ output: os.Stdout,
+ debugOut: ioutil.Discard,
+ }
+
+ for _, opt := range options {
+ if opt != nil {
+ opt(s)
+ }
+ }
+
+ p := &Progress{
+ ctx: ctx,
+ uwg: s.uwg,
+ cwg: new(sync.WaitGroup),
+ bwg: new(sync.WaitGroup),
+ operateState: make(chan func(*pState)),
+ done: make(chan struct{}),
+ dlogger: log.New(s.debugOut, "[mpb] ", log.Lshortfile),
+ }
+
+ p.cwg.Add(1)
+ go p.serve(s, cwriter.New(s.output))
+ return p
+}
+
+// AddBar creates a bar with default bar filler. Different filler can
+// be choosen and applied via `*Progress.Add(...) *Bar` method.
+func (p *Progress) AddBar(total int64, options ...BarOption) *Bar {
+ return p.Add(total, NewBarFiller(BarDefaultStyle), options...)
+}
+
+// AddSpinner creates a bar with default spinner filler. Different
+// filler can be choosen and applied via `*Progress.Add(...) *Bar`
+// method.
+func (p *Progress) AddSpinner(total int64, alignment SpinnerAlignment, options ...BarOption) *Bar {
+ return p.Add(total, NewSpinnerFiller(SpinnerDefaultStyle, alignment), options...)
+}
+
+// Add creates a bar which renders itself by provided filler.
+// If `total <= 0` trigger complete event is disabled until reset with *bar.SetTotal(int64, bool).
+// Panics if *Progress instance is done, i.e. called after *Progress.Wait().
+func (p *Progress) Add(total int64, filler BarFiller, options ...BarOption) *Bar {
+ if filler == nil {
+ filler = BarFillerFunc(func(io.Writer, int, decor.Statistics) {})
+ }
+ p.bwg.Add(1)
+ result := make(chan *Bar)
+ select {
+ case p.operateState <- func(ps *pState) {
+ bs := ps.makeBarState(total, filler, options...)
+ bar := newBar(p, bs)
+ if bs.runningBar != nil {
+ bs.runningBar.noPop = true
+ ps.parkedBars[bs.runningBar] = bar
+ } else {
+ heap.Push(&ps.bHeap, bar)
+ ps.heapUpdated = true
+ }
+ ps.idCount++
+ result <- bar
+ }:
+ bar := <-result
+ bar.subscribeDecorators()
+ return bar
+ case <-p.done:
+ p.bwg.Done()
+ panic(fmt.Sprintf("%T instance can't be reused after it's done!", p))
+ }
+}
+
+func (p *Progress) dropBar(b *Bar) {
+ select {
+ case p.operateState <- func(s *pState) {
+ if b.index < 0 {
+ return
+ }
+ heap.Remove(&s.bHeap, b.index)
+ s.heapUpdated = true
+ }:
+ case <-p.done:
+ }
+}
+
+func (p *Progress) setBarPriority(b *Bar, priority int) {
+ select {
+ case p.operateState <- func(s *pState) {
+ if b.index < 0 {
+ return
+ }
+ b.priority = priority
+ heap.Fix(&s.bHeap, b.index)
+ }:
+ case <-p.done:
+ }
+}
+
+// UpdateBarPriority same as *Bar.SetPriority(int).
+func (p *Progress) UpdateBarPriority(b *Bar, priority int) {
+ p.setBarPriority(b, priority)
+}
+
+// BarCount returns bars count.
+func (p *Progress) BarCount() int {
+ result := make(chan int, 1)
+ select {
+ case p.operateState <- func(s *pState) { result <- s.bHeap.Len() }:
+ return <-result
+ case <-p.done:
+ return 0
+ }
+}
+
+// Wait waits for all bars to complete and finally shutdowns container.
+// After this method has been called, there is no way to reuse *Progress
+// instance.
+func (p *Progress) Wait() {
+ if p.uwg != nil {
+ // wait for user wg
+ p.uwg.Wait()
+ }
+
+ // wait for bars to quit, if any
+ p.bwg.Wait()
+
+ p.once.Do(p.shutdown)
+
+ // wait for container to quit
+ p.cwg.Wait()
+}
+
+func (p *Progress) shutdown() {
+ close(p.done)
+}
+
+func (p *Progress) serve(s *pState, cw *cwriter.Writer) {
+ defer p.cwg.Done()
+
+ p.refreshCh = s.newTicker(p.done)
+
+ for {
+ select {
+ case op := <-p.operateState:
+ op(s)
+ case <-p.refreshCh:
+ if err := s.render(cw); err != nil {
+ p.dlogger.Println(err)
+ }
+ case <-s.shutdownNotifier:
+ if s.heapUpdated {
+ if err := s.render(cw); err != nil {
+ p.dlogger.Println(err)
+ }
+ }
+ return
+ }
+ }
+}
+
+func (s *pState) newTicker(done <-chan struct{}) chan time.Time {
+ ch := make(chan time.Time)
+ if s.shutdownNotifier == nil {
+ s.shutdownNotifier = make(chan struct{})
+ }
+ go func() {
+ if s.renderDelay != nil {
+ <-s.renderDelay
+ }
+ var internalRefresh <-chan time.Time
+ if !s.outputDiscarded {
+ if s.externalRefresh == nil {
+ ticker := time.NewTicker(s.rr)
+ defer ticker.Stop()
+ internalRefresh = ticker.C
+ }
+ } else {
+ s.externalRefresh = nil
+ }
+ for {
+ select {
+ case t := <-internalRefresh:
+ ch <- t
+ case x := <-s.externalRefresh:
+ if t, ok := x.(time.Time); ok {
+ ch <- t
+ } else {
+ ch <- time.Now()
+ }
+ case <-done:
+ close(s.shutdownNotifier)
+ return
+ }
+ }
+ }()
+ return ch
+}
+
+func (s *pState) render(cw *cwriter.Writer) error {
+ if s.heapUpdated {
+ s.updateSyncMatrix()
+ s.heapUpdated = false
+ }
+ syncWidth(s.pMatrix)
+ syncWidth(s.aMatrix)
+
+ tw, err := cw.GetWidth()
+ if err != nil {
+ tw = s.reqWidth
+ }
+ for i := 0; i < s.bHeap.Len(); i++ {
+ bar := s.bHeap[i]
+ go bar.render(tw)
+ }
+
+ return s.flush(cw)
+}
+
+func (s *pState) flush(cw *cwriter.Writer) error {
+ var lineCount int
+ bm := make(map[*Bar]struct{}, s.bHeap.Len())
+ for s.bHeap.Len() > 0 {
+ b := heap.Pop(&s.bHeap).(*Bar)
+ cw.ReadFrom(<-b.frameCh)
+ if b.toShutdown {
+ if b.recoveredPanic != nil {
+ s.barShutdownQueue = append(s.barShutdownQueue, b)
+ b.toShutdown = false
+ } else {
+ // shutdown at next flush
+ // this ensures no bar ends up with less than 100% rendered
+ defer func() {
+ s.barShutdownQueue = append(s.barShutdownQueue, b)
+ }()
+ }
+ }
+ lineCount += b.extendedLines + 1
+ bm[b] = struct{}{}
+ }
+
+ for _, b := range s.barShutdownQueue {
+ if parkedBar := s.parkedBars[b]; parkedBar != nil {
+ parkedBar.priority = b.priority
+ heap.Push(&s.bHeap, parkedBar)
+ delete(s.parkedBars, b)
+ b.toDrop = true
+ }
+ if s.popCompleted && !b.noPop {
+ lineCount -= b.extendedLines + 1
+ b.toDrop = true
+ }
+ if b.toDrop {
+ delete(bm, b)
+ s.heapUpdated = true
+ }
+ b.cancel()
+ }
+ s.barShutdownQueue = s.barShutdownQueue[0:0]
+
+ for b := range bm {
+ heap.Push(&s.bHeap, b)
+ }
+
+ return cw.Flush(lineCount)
+}
+
+func (s *pState) updateSyncMatrix() {
+ s.pMatrix = make(map[int][]chan int)
+ s.aMatrix = make(map[int][]chan int)
+ for i := 0; i < s.bHeap.Len(); i++ {
+ bar := s.bHeap[i]
+ table := bar.wSyncTable()
+ pRow, aRow := table[0], table[1]
+
+ for i, ch := range pRow {
+ s.pMatrix[i] = append(s.pMatrix[i], ch)
+ }
+
+ for i, ch := range aRow {
+ s.aMatrix[i] = append(s.aMatrix[i], ch)
+ }
+ }
+}
+
+func (s *pState) makeBarState(total int64, filler BarFiller, options ...BarOption) *bState {
+ bs := &bState{
+ id: s.idCount,
+ priority: s.idCount,
+ reqWidth: s.reqWidth,
+ total: total,
+ filler: filler,
+ extender: func(r io.Reader, _ int, _ decor.Statistics) (io.Reader, int) { return r, 0 },
+ debugOut: s.debugOut,
+ }
+
+ if total > 0 {
+ bs.triggerComplete = true
+ }
+
+ for _, opt := range options {
+ if opt != nil {
+ opt(bs)
+ }
+ }
+
+ if bs.middleware != nil {
+ bs.filler = bs.middleware(filler)
+ bs.middleware = nil
+ }
+
+ if s.popCompleted && !bs.noPop {
+ bs.priority = -(math.MaxInt32 - s.idCount)
+ }
+
+ bs.bufP = bytes.NewBuffer(make([]byte, 0, 128))
+ bs.bufB = bytes.NewBuffer(make([]byte, 0, 256))
+ bs.bufA = bytes.NewBuffer(make([]byte, 0, 128))
+
+ return bs
+}
+
+func syncWidth(matrix map[int][]chan int) {
+ for _, column := range matrix {
+ go maxWidthDistributor(column)
+ }
+}
+
+var maxWidthDistributor = func(column []chan int) {
+ var maxWidth int
+ for _, ch := range column {
+ if w := <-ch; w > maxWidth {
+ maxWidth = w
+ }
+ }
+ for _, ch := range column {
+ ch <- maxWidth
+ }
+}
diff --git a/vendor/github.com/vbauerster/mpb/v6/proxyreader.go b/vendor/github.com/vbauerster/mpb/v6/proxyreader.go
new file mode 100644
index 000000000..316f438d7
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/proxyreader.go
@@ -0,0 +1,90 @@
+package mpb
+
+import (
+ "io"
+ "io/ioutil"
+ "time"
+)
+
+type proxyReader struct {
+ io.ReadCloser
+ bar *Bar
+}
+
+func (x *proxyReader) Read(p []byte) (int, error) {
+ n, err := x.ReadCloser.Read(p)
+ x.bar.IncrBy(n)
+ if err == io.EOF {
+ go x.bar.SetTotal(0, true)
+ }
+ return n, err
+}
+
+type proxyWriterTo struct {
+ io.ReadCloser // *proxyReader
+ wt io.WriterTo
+ bar *Bar
+}
+
+func (x *proxyWriterTo) WriteTo(w io.Writer) (int64, error) {
+ n, err := x.wt.WriteTo(w)
+ x.bar.IncrInt64(n)
+ if err == io.EOF {
+ go x.bar.SetTotal(0, true)
+ }
+ return n, err
+}
+
+type ewmaProxyReader struct {
+ io.ReadCloser // *proxyReader
+ bar *Bar
+ iT time.Time
+}
+
+func (x *ewmaProxyReader) Read(p []byte) (int, error) {
+ n, err := x.ReadCloser.Read(p)
+ if n > 0 {
+ x.bar.DecoratorEwmaUpdate(time.Since(x.iT))
+ x.iT = time.Now()
+ }
+ return n, err
+}
+
+type ewmaProxyWriterTo struct {
+ io.ReadCloser // *ewmaProxyReader
+ wt io.WriterTo // *proxyWriterTo
+ bar *Bar
+ iT time.Time
+}
+
+func (x *ewmaProxyWriterTo) WriteTo(w io.Writer) (int64, error) {
+ n, err := x.wt.WriteTo(w)
+ if n > 0 {
+ x.bar.DecoratorEwmaUpdate(time.Since(x.iT))
+ x.iT = time.Now()
+ }
+ return n, err
+}
+
+func newProxyReader(r io.Reader, bar *Bar) io.ReadCloser {
+ rc := toReadCloser(r)
+ rc = &proxyReader{rc, bar}
+
+ if wt, isWriterTo := r.(io.WriterTo); bar.hasEwmaDecorators {
+ now := time.Now()
+ rc = &ewmaProxyReader{rc, bar, now}
+ if isWriterTo {
+ rc = &ewmaProxyWriterTo{rc, wt, bar, now}
+ }
+ } else if isWriterTo {
+ rc = &proxyWriterTo{rc, wt, bar}
+ }
+ return rc
+}
+
+func toReadCloser(r io.Reader) io.ReadCloser {
+ if rc, ok := r.(io.ReadCloser); ok {
+ return rc
+ }
+ return ioutil.NopCloser(r)
+}