k9s/internal/dao/log_options.go

105 lines
2.1 KiB
Go

package dao
import (
"path"
"strings"
"github.com/derailed/k9s/internal/color"
"github.com/derailed/tview"
runewidth "github.com/mattn/go-runewidth"
)
type (
// Fqn uniquely describes a container
Fqn struct {
Namespace, Name, Container string
}
// LogOptions represent logger options.
LogOptions struct {
Fqn
Lines int64
Color color.Paint
Previous bool
SingleContainer bool
MultiPods bool
}
)
// HasContainer checks if a container is present.
func (o LogOptions) HasContainer() bool {
return o.Container != ""
}
// FQN returns resource fully qualified name.
func (o LogOptions) FQN() string {
return FQN(o.Namespace, o.Name)
}
// Path returns resource descriptor path.
func (o LogOptions) Path() string {
return o.FQN() + ":" + o.Container
}
// FixedSizeName returns a normalize fixed size pod name if possible.
func (o LogOptions) FixedSizeName() string {
tokens := strings.Split(o.Name, "-")
if len(tokens) < 3 {
return o.Name
}
var s []string
for i := 0; i < len(tokens)-1; i++ {
s = append(s, tokens[i])
}
return Truncate(strings.Join(s, "-"), 15) + "-" + tokens[len(tokens)-1]
}
func colorize(c color.Paint, txt string) string {
if c == 0 {
return ""
}
return color.Colorize(txt, c)
}
// DecorateLog add a log header to display po/co information along with the log message.
func (o LogOptions) DecorateLog(msg string) string {
if msg == "" {
return msg
}
if o.MultiPods {
return colorize(o.Color, o.Name+":"+o.Container+" ") + msg
}
if !o.SingleContainer {
return colorize(o.Color, o.Container+" ") + msg
}
return msg
}
// Helpers...
// BOZO!! Consolidate!!
// 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))
}
// Namespaced return a namesapace and a name.
func Namespaced(n string) (string, string) {
ns, po := path.Split(n)
return strings.Trim(ns, "/"), po
}
// FQN returns a fully qualified resource name.
func FQN(ns, n string) string {
if ns == "" {
return n
}
return ns + "/" + n
}