restic/cmd/restic/progress.go

55 lines
1.4 KiB
Go

package main
import (
"fmt"
"os"
"strconv"
"time"
"github.com/restic/restic/internal/ui/progress"
)
// calculateProgressInterval returns the interval configured via RESTIC_PROGRESS_FPS
// or if unset returns an interval for 60fps on interactive terminals and 0 (=disabled)
// for non-interactive terminals or when run using the --quiet flag
func calculateProgressInterval(show bool) time.Duration {
interval := time.Second / 60
fps, err := strconv.ParseFloat(os.Getenv("RESTIC_PROGRESS_FPS"), 64)
if err == nil && fps > 0 {
if fps > 60 {
fps = 60
}
interval = time.Duration(float64(time.Second) / fps)
} else if !stdoutCanUpdateStatus() || !show {
interval = 0
}
return interval
}
// newProgressMax returns a progress.Counter that prints to stdout.
func newProgressMax(show bool, max uint64, description string) *progress.Counter {
if !show {
return nil
}
interval := calculateProgressInterval(show)
return progress.New(interval, max, func(v uint64, max uint64, d time.Duration, final bool) {
var status string
if max == 0 {
status = fmt.Sprintf("[%s] %d %s", formatDuration(d), v, description)
} else {
status = fmt.Sprintf("[%s] %s %d / %d %s",
formatDuration(d), formatPercent(v, max), v, max, description)
}
if w := stdoutTerminalWidth(); w > 0 {
status = shortenStatus(w, status)
}
PrintProgress("%s", status)
if final {
fmt.Print("\n")
}
})
}