Files
kustomize/cmd/kubectl/kubectlcobra/basic_printer.go

63 lines
2.1 KiB
Go

// Copyright 2019 The Kubernetes Authors.
// SPDX-License-Identifier: Apache-2.0
package kubectlcobra
import (
"fmt"
"k8s.io/apimachinery/pkg/runtime/schema"
"strings"
"k8s.io/apimachinery/pkg/api/meta"
"k8s.io/cli-runtime/pkg/genericclioptions"
cmdutil "k8s.io/kubectl/pkg/cmd/util"
"sigs.k8s.io/kustomize/kstatus/wait"
)
// BasicPrinter is a simple implementation that just prints the events
// from the channel in the default format for kubectl.
// We need to support different printers for different output formats.
type BasicPrinter struct {
ioStreams genericclioptions.IOStreams
}
// Print outputs the events from the provided channel in a simple
// format on StdOut. As we support other printer implementations
// this should probably be an interface.
// This function will block until the channel is closed.
func (b *BasicPrinter) Print(ch <-chan Event) {
for event := range ch {
switch event.EventType {
case ErrorEventType:
cmdutil.CheckErr(event.ErrorEvent.Err)
case ApplyEventType:
obj := event.ApplyEvent.Object
gvk := obj.GetObjectKind().GroupVersionKind()
name := "<unknown>"
if acc, err := meta.Accessor(obj); err == nil {
if n := acc.GetName(); len(n) > 0 {
name = n
}
}
fmt.Fprintf(b.ioStreams.Out, "%s %s\n", resourceIdToString(gvk.GroupKind(), name), event.ApplyEvent.Operation)
case StatusEventType:
statusEvent := event.StatusEvent
switch statusEvent.Type {
case wait.ResourceUpdate:
id := statusEvent.EventResource.ResourceIdentifier
gk := id.GroupKind
fmt.Fprintf(b.ioStreams.Out, "%s is %s: %s\n", resourceIdToString(gk, id.Name), statusEvent.EventResource.Status.String(), statusEvent.EventResource.Message)
case wait.Completed:
fmt.Fprint(b.ioStreams.Out, "all resources has reached the Current status\n")
case wait.Aborted:
fmt.Fprintf(b.ioStreams.Out, "resources failed to the reached Current status\n")
}
}
}
}
// resourceIdToString returns the string representation of a GroupKind and a resource name.
func resourceIdToString(gk schema.GroupKind, name string) string {
return fmt.Sprintf("%s/%s", strings.ToLower(gk.String()), name)
}