forked from ksonnet/ksonnet
/
env_list.go
123 lines (100 loc) · 2.48 KB
/
env_list.go
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// Copyright 2018 The ksonnet authors
//
//
// 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 actions
import (
"encoding/json"
"io"
"os"
"sort"
"github.com/ksonnet/ksonnet/pkg/app"
"github.com/ksonnet/ksonnet/pkg/util/table"
"github.com/pkg/errors"
)
// RunEnvList runs `env list`
func RunEnvList(m map[string]interface{}) error {
nl, err := NewEnvList(m)
if err != nil {
return err
}
return nl.Run()
}
// EnvList lists available namespaces
type EnvList struct {
app app.App
outputType string
out io.Writer
}
// NewEnvList creates an instance of EnvList
func NewEnvList(m map[string]interface{}) (*EnvList, error) {
ol := newOptionLoader(m)
el := &EnvList{
app: ol.LoadApp(),
outputType: ol.LoadOptionalString(OptionOutput),
out: os.Stdout,
}
if ol.err != nil {
return nil, ol.err
}
if el.outputType == "" {
el.outputType = OutputWide
}
return el, nil
}
// Run runs the env list action.
func (el *EnvList) Run() error {
switch el.outputType {
default:
return errors.Errorf("unknown output format %q", el.outputType)
case OutputWide:
return el.outputWide()
case OutputJSON:
return el.outputJSON()
}
}
func (el *EnvList) outputJSON() error {
environments, err := el.app.Environments()
if err != nil {
return err
}
return json.NewEncoder(el.out).Encode(environments)
}
func (el *EnvList) outputWide() error {
environments, err := el.app.Environments()
if err != nil {
return err
}
table := table.New(el.out)
table.SetHeader([]string{"name", "override", "kubernetes-version", "namespace", "server"})
var rows [][]string
for name, env := range environments {
override := ""
if env.IsOverride() {
override = "*"
}
rows = append(rows, []string{
name,
override,
env.KubernetesVersion,
env.Destination.Namespace,
env.Destination.Server,
})
}
sort.Slice(rows, func(i, j int) bool {
return rows[i][0] < rows[j][0]
})
table.AppendBulk(rows)
table.Render()
return nil
}