k9s/internal/dao/helpers.go

45 lines
901 B
Go

package dao
import (
"bytes"
"errors"
"math"
"github.com/derailed/tview"
runewidth "github.com/mattn/go-runewidth"
"github.com/rs/zerolog/log"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/cli-runtime/pkg/printers"
)
func toPerc(v1, v2 float64) float64 {
if v2 == 0 {
return 0
}
return math.Round((v1 / v2) * 100)
}
// Truncate a string to the given l and suffix ellipsis if needed.
func Truncate(str string, width int) string {
return runewidth.Truncate(str, width, string(tview.SemigraphicsHorizontalEllipsis))
}
// ToYAML converts a resource to its YAML representation.
func ToYAML(o runtime.Object) (string, error) {
if o == nil {
return "", errors.New("no object to yamlize")
}
var (
buff bytes.Buffer
p printers.YAMLPrinter
)
err := p.PrintObj(o, &buff)
if err != nil {
log.Error().Msgf("Marshal Error %v", err)
return "", err
}
return buff.String(), nil
}