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list.go
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/
list.go
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package tasks
import (
"fmt"
"os"
"text/tabwriter"
tasks "github.com/containerd/containerd/api/services/tasks/v1"
"github.com/containerd/containerd/cmd/ctr/commands"
"github.com/urfave/cli"
)
var listCommand = cli.Command{
Name: "list",
Usage: "list tasks",
Aliases: []string{"ls"},
ArgsUsage: "[flags]",
Flags: []cli.Flag{
cli.BoolFlag{
Name: "quiet, q",
Usage: "print only the task id & pid",
},
},
Action: func(context *cli.Context) error {
quiet := context.Bool("quiet")
client, ctx, cancel, err := commands.NewClient(context)
if err != nil {
return err
}
defer cancel()
s := client.TaskService()
response, err := s.List(ctx, &tasks.ListTasksRequest{})
if err != nil {
return err
}
if quiet {
for _, task := range response.Tasks {
fmt.Println(task.ID)
}
return nil
}
w := tabwriter.NewWriter(os.Stdout, 4, 8, 4, ' ', 0)
fmt.Fprintln(w, "TASK\tPID\tSTATUS\t")
for _, task := range response.Tasks {
if _, err := fmt.Fprintf(w, "%s\t%d\t%s\n",
task.ID,
task.Pid,
task.Status.String(),
); err != nil {
return err
}
}
return w.Flush()
},
}