kubectx/cmd/kubens/current.go
Ahmet Alp Balkan 1e49c336fc
Add license headers for 2021
Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>
2020-12-29 13:38:42 -08:00

46 lines
1.2 KiB
Go

// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"fmt"
"io"
"github.com/pkg/errors"
"github.com/ahmetb/kubectx/internal/kubeconfig"
)
type CurrentOp struct{}
func (c CurrentOp) Run(stdout, _ io.Writer) error {
kc := new(kubeconfig.Kubeconfig).WithLoader(kubeconfig.DefaultLoader)
defer kc.Close()
if err := kc.Parse(); err != nil {
return errors.Wrap(err, "kubeconfig error")
}
ctx := kc.GetCurrentContext()
if ctx == "" {
return errors.New("current-context is not set")
}
ns, err := kc.NamespaceOfContext(ctx)
if err != nil {
return errors.Wrapf(err, "failed to read namespace of \"%s\"", ctx)
}
_, err = fmt.Fprintln(stdout, ns)
return errors.Wrap(err, "write error")
}