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authorMatthew Heon <matthew.heon@gmail.com>2017-11-01 11:24:59 -0400
committerMatthew Heon <matthew.heon@gmail.com>2017-11-01 11:24:59 -0400
commita031b83a09a8628435317a03f199cdc18b78262f (patch)
treebc017a96769ce6de33745b8b0b1304ccf38e9df0 /vendor/gopkg.in/cheggaaa/pb.v1/pb.go
parent2b74391cd5281f6fdf391ff8ad50fd1490f6bf89 (diff)
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Initial checkin from CRI-O repo
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Diffstat (limited to 'vendor/gopkg.in/cheggaaa/pb.v1/pb.go')
-rw-r--r--vendor/gopkg.in/cheggaaa/pb.v1/pb.go444
1 files changed, 444 insertions, 0 deletions
diff --git a/vendor/gopkg.in/cheggaaa/pb.v1/pb.go b/vendor/gopkg.in/cheggaaa/pb.v1/pb.go
new file mode 100644
index 000000000..f1f15bff3
--- /dev/null
+++ b/vendor/gopkg.in/cheggaaa/pb.v1/pb.go
@@ -0,0 +1,444 @@
+// Simple console progress bars
+package pb
+
+import (
+ "fmt"
+ "io"
+ "math"
+ "strings"
+ "sync"
+ "sync/atomic"
+ "time"
+ "unicode/utf8"
+)
+
+// Current version
+const Version = "1.0.6"
+
+const (
+ // Default refresh rate - 200ms
+ DEFAULT_REFRESH_RATE = time.Millisecond * 200
+ FORMAT = "[=>-]"
+)
+
+// DEPRECATED
+// variables for backward compatibility, from now do not work
+// use pb.Format and pb.SetRefreshRate
+var (
+ DefaultRefreshRate = DEFAULT_REFRESH_RATE
+ BarStart, BarEnd, Empty, Current, CurrentN string
+)
+
+// Create new progress bar object
+func New(total int) *ProgressBar {
+ return New64(int64(total))
+}
+
+// Create new progress bar object using int64 as total
+func New64(total int64) *ProgressBar {
+ pb := &ProgressBar{
+ Total: total,
+ RefreshRate: DEFAULT_REFRESH_RATE,
+ ShowPercent: true,
+ ShowCounters: true,
+ ShowBar: true,
+ ShowTimeLeft: true,
+ ShowFinalTime: true,
+ Units: U_NO,
+ ManualUpdate: false,
+ finish: make(chan struct{}),
+ currentValue: -1,
+ mu: new(sync.Mutex),
+ }
+ return pb.Format(FORMAT)
+}
+
+// Create new object and start
+func StartNew(total int) *ProgressBar {
+ return New(total).Start()
+}
+
+// Callback for custom output
+// For example:
+// bar.Callback = func(s string) {
+// mySuperPrint(s)
+// }
+//
+type Callback func(out string)
+
+type ProgressBar struct {
+ current int64 // current must be first member of struct (https://code.google.com/p/go/issues/detail?id=5278)
+
+ Total int64
+ RefreshRate time.Duration
+ ShowPercent, ShowCounters bool
+ ShowSpeed, ShowTimeLeft, ShowBar bool
+ ShowFinalTime bool
+ Output io.Writer
+ Callback Callback
+ NotPrint bool
+ Units Units
+ Width int
+ ForceWidth bool
+ ManualUpdate bool
+ AutoStat bool
+
+ // Default width for the time box.
+ UnitsWidth int
+ TimeBoxWidth int
+
+ finishOnce sync.Once //Guards isFinish
+ finish chan struct{}
+ isFinish bool
+
+ startTime time.Time
+ startValue int64
+ currentValue int64
+
+ prefix, postfix string
+
+ mu *sync.Mutex
+ lastPrint string
+
+ BarStart string
+ BarEnd string
+ Empty string
+ Current string
+ CurrentN string
+
+ AlwaysUpdate bool
+}
+
+// Start print
+func (pb *ProgressBar) Start() *ProgressBar {
+ pb.startTime = time.Now()
+ pb.startValue = pb.current
+ if pb.Total == 0 {
+ pb.ShowTimeLeft = false
+ pb.ShowPercent = false
+ pb.AutoStat = false
+ }
+ if !pb.ManualUpdate {
+ pb.Update() // Initial printing of the bar before running the bar refresher.
+ go pb.refresher()
+ }
+ return pb
+}
+
+// Increment current value
+func (pb *ProgressBar) Increment() int {
+ return pb.Add(1)
+}
+
+// Get current value
+func (pb *ProgressBar) Get() int64 {
+ c := atomic.LoadInt64(&pb.current)
+ return c
+}
+
+// Set current value
+func (pb *ProgressBar) Set(current int) *ProgressBar {
+ return pb.Set64(int64(current))
+}
+
+// Set64 sets the current value as int64
+func (pb *ProgressBar) Set64(current int64) *ProgressBar {
+ atomic.StoreInt64(&pb.current, current)
+ return pb
+}
+
+// Add to current value
+func (pb *ProgressBar) Add(add int) int {
+ return int(pb.Add64(int64(add)))
+}
+
+func (pb *ProgressBar) Add64(add int64) int64 {
+ return atomic.AddInt64(&pb.current, add)
+}
+
+// Set prefix string
+func (pb *ProgressBar) Prefix(prefix string) *ProgressBar {
+ pb.prefix = prefix
+ return pb
+}
+
+// Set postfix string
+func (pb *ProgressBar) Postfix(postfix string) *ProgressBar {
+ pb.postfix = postfix
+ return pb
+}
+
+// Set custom format for bar
+// Example: bar.Format("[=>_]")
+// Example: bar.Format("[\x00=\x00>\x00-\x00]") // \x00 is the delimiter
+func (pb *ProgressBar) Format(format string) *ProgressBar {
+ var formatEntries []string
+ if len(format) == 5 {
+ formatEntries = strings.Split(format, "")
+ } else {
+ formatEntries = strings.Split(format, "\x00")
+ }
+ if len(formatEntries) == 5 {
+ pb.BarStart = formatEntries[0]
+ pb.BarEnd = formatEntries[4]
+ pb.Empty = formatEntries[3]
+ pb.Current = formatEntries[1]
+ pb.CurrentN = formatEntries[2]
+ }
+ return pb
+}
+
+// Set bar refresh rate
+func (pb *ProgressBar) SetRefreshRate(rate time.Duration) *ProgressBar {
+ pb.RefreshRate = rate
+ return pb
+}
+
+// Set units
+// bar.SetUnits(U_NO) - by default
+// bar.SetUnits(U_BYTES) - for Mb, Kb, etc
+func (pb *ProgressBar) SetUnits(units Units) *ProgressBar {
+ pb.Units = units
+ return pb
+}
+
+// Set max width, if width is bigger than terminal width, will be ignored
+func (pb *ProgressBar) SetMaxWidth(width int) *ProgressBar {
+ pb.Width = width
+ pb.ForceWidth = false
+ return pb
+}
+
+// Set bar width
+func (pb *ProgressBar) SetWidth(width int) *ProgressBar {
+ pb.Width = width
+ pb.ForceWidth = true
+ return pb
+}
+
+// End print
+func (pb *ProgressBar) Finish() {
+ //Protect multiple calls
+ pb.finishOnce.Do(func() {
+ close(pb.finish)
+ pb.write(atomic.LoadInt64(&pb.current))
+ switch {
+ case pb.Output != nil:
+ fmt.Fprintln(pb.Output)
+ case !pb.NotPrint:
+ fmt.Println()
+ }
+ pb.isFinish = true
+ })
+}
+
+// End print and write string 'str'
+func (pb *ProgressBar) FinishPrint(str string) {
+ pb.Finish()
+ if pb.Output != nil {
+ fmt.Fprintln(pb.Output, str)
+ } else {
+ fmt.Println(str)
+ }
+}
+
+// implement io.Writer
+func (pb *ProgressBar) Write(p []byte) (n int, err error) {
+ n = len(p)
+ pb.Add(n)
+ return
+}
+
+// implement io.Reader
+func (pb *ProgressBar) Read(p []byte) (n int, err error) {
+ n = len(p)
+ pb.Add(n)
+ return
+}
+
+// Create new proxy reader over bar
+// Takes io.Reader or io.ReadCloser
+func (pb *ProgressBar) NewProxyReader(r io.Reader) *Reader {
+ return &Reader{r, pb}
+}
+
+func (pb *ProgressBar) write(current int64) {
+ width := pb.GetWidth()
+
+ var percentBox, countersBox, timeLeftBox, speedBox, barBox, end, out string
+
+ // percents
+ if pb.ShowPercent {
+ var percent float64
+ if pb.Total > 0 {
+ percent = float64(current) / (float64(pb.Total) / float64(100))
+ } else {
+ percent = float64(current) / float64(100)
+ }
+ percentBox = fmt.Sprintf(" %6.02f%%", percent)
+ }
+
+ // counters
+ if pb.ShowCounters {
+ current := Format(current).To(pb.Units).Width(pb.UnitsWidth)
+ if pb.Total > 0 {
+ total := Format(pb.Total).To(pb.Units).Width(pb.UnitsWidth)
+ countersBox = fmt.Sprintf(" %s / %s ", current, total)
+ } else {
+ countersBox = fmt.Sprintf(" %s / ? ", current)
+ }
+ }
+
+ // time left
+ fromStart := time.Now().Sub(pb.startTime)
+ currentFromStart := current - pb.startValue
+ select {
+ case <-pb.finish:
+ if pb.ShowFinalTime {
+ var left time.Duration
+ left = (fromStart / time.Second) * time.Second
+ timeLeftBox = fmt.Sprintf(" %s", left.String())
+ }
+ default:
+ if pb.ShowTimeLeft && currentFromStart > 0 {
+ perEntry := fromStart / time.Duration(currentFromStart)
+ var left time.Duration
+ if pb.Total > 0 {
+ left = time.Duration(pb.Total-currentFromStart) * perEntry
+ left = (left / time.Second) * time.Second
+ } else {
+ left = time.Duration(currentFromStart) * perEntry
+ left = (left / time.Second) * time.Second
+ }
+ timeLeft := Format(int64(left)).To(U_DURATION).String()
+ timeLeftBox = fmt.Sprintf(" %s", timeLeft)
+ }
+ }
+
+ if len(timeLeftBox) < pb.TimeBoxWidth {
+ timeLeftBox = fmt.Sprintf("%s%s", strings.Repeat(" ", pb.TimeBoxWidth-len(timeLeftBox)), timeLeftBox)
+ }
+
+ // speed
+ if pb.ShowSpeed && currentFromStart > 0 {
+ fromStart := time.Now().Sub(pb.startTime)
+ speed := float64(currentFromStart) / (float64(fromStart) / float64(time.Second))
+ speedBox = " " + Format(int64(speed)).To(pb.Units).Width(pb.UnitsWidth).PerSec().String()
+ }
+
+ barWidth := escapeAwareRuneCountInString(countersBox + pb.BarStart + pb.BarEnd + percentBox + timeLeftBox + speedBox + pb.prefix + pb.postfix)
+ // bar
+ if pb.ShowBar {
+ size := width - barWidth
+ if size > 0 {
+ if pb.Total > 0 {
+ curCount := int(math.Ceil((float64(current) / float64(pb.Total)) * float64(size)))
+ emptCount := size - curCount
+ barBox = pb.BarStart
+ if emptCount < 0 {
+ emptCount = 0
+ }
+ if curCount > size {
+ curCount = size
+ }
+ if emptCount <= 0 {
+ barBox += strings.Repeat(pb.Current, curCount)
+ } else if curCount > 0 {
+ barBox += strings.Repeat(pb.Current, curCount-1) + pb.CurrentN
+ }
+ barBox += strings.Repeat(pb.Empty, emptCount) + pb.BarEnd
+ } else {
+ barBox = pb.BarStart
+ pos := size - int(current)%int(size)
+ if pos-1 > 0 {
+ barBox += strings.Repeat(pb.Empty, pos-1)
+ }
+ barBox += pb.Current
+ if size-pos-1 > 0 {
+ barBox += strings.Repeat(pb.Empty, size-pos-1)
+ }
+ barBox += pb.BarEnd
+ }
+ }
+ }
+
+ // check len
+ out = pb.prefix + countersBox + barBox + percentBox + speedBox + timeLeftBox + pb.postfix
+ if escapeAwareRuneCountInString(out) < width {
+ end = strings.Repeat(" ", width-utf8.RuneCountInString(out))
+ }
+
+ // and print!
+ pb.mu.Lock()
+ pb.lastPrint = out + end
+ pb.mu.Unlock()
+ switch {
+ case pb.isFinish:
+ return
+ case pb.Output != nil:
+ fmt.Fprint(pb.Output, "\r"+out+end)
+ case pb.Callback != nil:
+ pb.Callback(out + end)
+ case !pb.NotPrint:
+ fmt.Print("\r" + out + end)
+ }
+}
+
+// GetTerminalWidth - returns terminal width for all platforms.
+func GetTerminalWidth() (int, error) {
+ return terminalWidth()
+}
+
+func (pb *ProgressBar) GetWidth() int {
+ if pb.ForceWidth {
+ return pb.Width
+ }
+
+ width := pb.Width
+ termWidth, _ := terminalWidth()
+ if width == 0 || termWidth <= width {
+ width = termWidth
+ }
+
+ return width
+}
+
+// Write the current state of the progressbar
+func (pb *ProgressBar) Update() {
+ c := atomic.LoadInt64(&pb.current)
+ if pb.AlwaysUpdate || c != pb.currentValue {
+ pb.write(c)
+ pb.currentValue = c
+ }
+ if pb.AutoStat {
+ if c == 0 {
+ pb.startTime = time.Now()
+ pb.startValue = 0
+ } else if c >= pb.Total && pb.isFinish != true {
+ pb.Finish()
+ }
+ }
+}
+
+func (pb *ProgressBar) String() string {
+ return pb.lastPrint
+}
+
+// Internal loop for refreshing the progressbar
+func (pb *ProgressBar) refresher() {
+ for {
+ select {
+ case <-pb.finish:
+ return
+ case <-time.After(pb.RefreshRate):
+ pb.Update()
+ }
+ }
+}
+
+type window struct {
+ Row uint16
+ Col uint16
+ Xpixel uint16
+ Ypixel uint16
+}