91 lines
1.8 KiB
Go
91 lines
1.8 KiB
Go
package utils
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import (
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"fmt"
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"time"
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)
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// 进度条定义
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type ProgressBar struct {
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Name string // 名称
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Total Counter // 总任务数
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Current *Counter // 当前已完成数量
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startTime time.Time // 任务开始时间
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exit chan struct{} // 是否退出进度条
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alreadyOutput bool
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}
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// 完成指定数量的任务
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func (pgb *ProgressBar) Done(i ...int64) {
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if len(i) == 1 {
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pgb.Current.Add(i[0])
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} else {
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pgb.Current.Add(1)
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}
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}
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// 退出进度条
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func (pgb *ProgressBar) Exit() {
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pgb.exit <- struct{}{}
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if pgb.alreadyOutput {
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fmt.Println("")
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}
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}
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// 启动并显示进度条
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func (pgb *ProgressBar) Run() {
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for {
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select {
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case <-pgb.exit:
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return
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case <-time.After(time.Second):
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pgb.print()
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}
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}
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}
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// 输出进度
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func (pgb *ProgressBar) print() {
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var percent float64 = 0
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var per, surplus int64
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cur := pgb.Current.Get()
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if pgb.Total.Get() > 0 {
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percent = float64(cur) / float64(pgb.Total.Get())
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}
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useTime := int64(time.Now().Sub(pgb.startTime) / time.Second)
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if useTime > 0 {
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per = cur / useTime
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}
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if per > 0 {
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surplus = (pgb.Total.Get() - cur) / per
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}
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fmt.Printf("\r\x1b[36m%s[%.2f%%] %d/%d %d/ps used:%s surplus:%s\x1b[0m", pgb.Name, percent * 100, cur, pgb.Total.Get(), per, HumanTimeSecond(useTime), HumanTimeSecond(surplus))
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if !pgb.alreadyOutput {
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pgb.alreadyOutput = true
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}
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}
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// 创建一个进度条
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func NewPGBar(total int64, name ...string) *ProgressBar {
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var n string
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if len(name) == 1 && name[0] != "" {
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n = name[0] + " "
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}
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return &ProgressBar{
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Name: n,
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Total: Counter{v : total},
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Current: &Counter{},
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startTime: time.Now(),
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exit: make(chan struct{}, 1),
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}
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}
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// 生成一个新的进度条并运行
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func NewAndRunPGBar(total int64, name ...string) *ProgressBar {
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pgb := NewPGBar(total, name...)
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go pgb.Run()
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return pgb
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} |