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app_list.go
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/
app_list.go
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// Copyright 2016 The rkt 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 main
import (
"bytes"
"fmt"
rkt "github.com/coreos/rkt/lib"
"github.com/spf13/cobra"
)
var (
cmdAppList = &cobra.Command{
Use: "list UUID",
Short: "List apps for the given pod",
Long: "This only lists the name and state of the apps, app status will show more detailed info.",
Run: runWrapper(runAppList),
}
)
func init() {
cmdApp.AddCommand(cmdAppList)
cmdAppList.Flags().BoolVar(&flagNoLegend, "no-legend", false, "suppress a legend with the list")
}
func runAppList(cmd *cobra.Command, args []string) int {
if len(args) != 1 {
cmd.Usage()
return 1
}
apps, err := rkt.AppsForPod(args[0], getDataDir(), "")
if err != nil {
stderr.PrintE("error listing apps", err)
return 1
}
tabBuffer := new(bytes.Buffer)
tabOut := getTabOutWithWriter(tabBuffer)
if !flagNoLegend {
fmt.Fprintf(tabOut, "NAME\tSTATE\n")
}
for _, app := range apps {
fmt.Fprintf(tabOut, "%s\t%s\n", app.Name, app.State)
}
tabOut.Flush()
stdout.Print(tabBuffer)
return 0
}