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package uiprogress_test
import (
"fmt"
"math/rand"
"runtime"
"sync"
"time"
"github.com/gosuri/uiprogress"
)
func Example() {
uiprogress.Start() // start rendering
bar := uiprogress.AddBar(100) // Add a new bar
// optionally, append and prepend completion and elapsed time
bar.AppendCompleted()
bar.PrependElapsed()
for bar.Incr() {
time.Sleep(time.Millisecond * 20)
}
}
func ExampleProgress_AddBar() {
waitTime := time.Millisecond * 100
uiprogress.Start()
// start the progress bars in go routines
var wg sync.WaitGroup
bar1 := uiprogress.AddBar(20).AppendCompleted().PrependElapsed()
wg.Add(1)
go func() {
defer wg.Done()
for bar1.Incr() {
time.Sleep(waitTime)
}
}()
bar2 := uiprogress.AddBar(40).AppendCompleted().PrependElapsed()
wg.Add(1)
go func() {
defer wg.Done()
for bar2.Incr() {
time.Sleep(waitTime)
}
}()
time.Sleep(time.Second)
bar3 := uiprogress.AddBar(20).PrependElapsed().AppendCompleted()
wg.Add(1)
go func() {
defer wg.Done()
for i := 1; i <= bar3.Total; i++ {
bar3.Set(i)
time.Sleep(waitTime)
}
}()
// wait for all the go routines to finish
wg.Wait()
}
func ExampleDecoratorFunc() {
var steps = []string{"downloading source", "installing deps", "compiling", "packaging", "seeding database", "deploying", "staring servers"}
bar := uiprogress.AddBar(len(steps))
// prepend the current step to the bar
bar.PrependFunc(func(b *uiprogress.Bar) string {
return "app: " + steps[b.Current()-1]
})
for bar.Incr() {
time.Sleep(time.Millisecond)
}
}
func ExampleBar_Incr() {
runtime.GOMAXPROCS(runtime.NumCPU()) // use all available cpu cores
// create a new bar and prepend the task progress to the bar
count := 1000
bar := uiprogress.AddBar(count).AppendCompleted().PrependElapsed()
bar.PrependFunc(func(b *uiprogress.Bar) string {
return fmt.Sprintf("Task (%d/%d)", b.Current(), count)
})
uiprogress.Start()
var wg sync.WaitGroup
// fanout into 1k go routines
for i := 0; i < count; i++ {
wg.Add(1)
go func() {
defer wg.Done()
time.Sleep(time.Millisecond * time.Duration(rand.Intn(500)))
bar.Incr()
}()
}
time.Sleep(time.Second) // wait for a second for all the go routines to finish
wg.Wait()
uiprogress.Stop()
}
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