barely report

Example

package main
import (
	"fmt"
	"math/rand"
	"os"
	"sync"
	"sync/atomic"
	"time"
	"github.com/reconquest/barely"
	"github.com/reconquest/loreley"
)
func main() {
	format, err := loreley.CompileWithReset(
		` {bg 2}{fg 15}{bold} {.Mode} `+
			`{bg 253}{fg 0} `+
			`{if .Updated}{fg 70}{end}{.Done}{fg 0}/{.Total} `,
		nil,
	)
	if err != nil {
		panic(err)
	}
	var (
		bar = barely.NewStatusBar(format.Template)
		wg = sync.WaitGroup{}
		status = &struct {
			Mode string
			Total int
			Done int64
			Updated int64
		}{
			Mode: "PROCESSING",
			Total: 100,
		}
	)
	bar.SetStatus(status)
	bar.Render(os.Stderr)
	for i := 1; i <= status.Total; i++ {
		wg.Add(1)
		go func(i int) {
			sleep := time.Duration(rand.Intn(i)) * time.Millisecond * 300
			time.Sleep(sleep)
			atomic.AddInt64(&status.Done, 1)
			atomic.AddInt64(&status.Updated, 1)
			if i%10 == 0 {
				bar.Clear(os.Stderr)
				fmt.Printf("go-routine %d done (%s sleep)\n", i, sleep)
			}
			bar.Render(os.Stderr)
			wg.Done()
			<-time.After(time.Millisecond * 500)
			atomic.AddInt64(&status.Updated, -1)
			bar.Render(os.Stderr)
		}(i)
	}
	wg.Wait()
	bar.Clear(os.Stderr)
}