DockerCLI/cli/command/stack/ps.go

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package stack
import (
"fmt"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/cli/command/idresolver"
"github.com/docker/cli/cli/command/task"
"github.com/docker/cli/opts"
"github.com/docker/docker/api/types"
"github.com/spf13/cobra"
"golang.org/x/net/context"
)
type psOptions struct {
filter opts.FilterOpt
noTrunc bool
namespace string
noResolve bool
quiet bool
format string
}
func newPsCommand(dockerCli command.Cli) *cobra.Command {
options := psOptions{filter: opts.NewFilterOpt()}
cmd := &cobra.Command{
Use: "ps [OPTIONS] STACK",
Short: "List the tasks in the stack",
Args: cli.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
options.namespace = args[0]
return runPS(dockerCli, options)
},
}
flags := cmd.Flags()
flags.BoolVar(&options.noTrunc, "no-trunc", false, "Do not truncate output")
flags.BoolVar(&options.noResolve, "no-resolve", false, "Do not map IDs to Names")
flags.VarP(&options.filter, "filter", "f", "Filter output based on conditions provided")
flags.BoolVarP(&options.quiet, "quiet", "q", false, "Only display task IDs")
flags.StringVar(&options.format, "format", "", "Pretty-print tasks using a Go template")
return cmd
}
func runPS(dockerCli command.Cli, options psOptions) error {
namespace := options.namespace
client := dockerCli.Client()
ctx := context.Background()
filter := getStackFilterFromOpt(options.namespace, options.filter)
tasks, err := client.TaskList(ctx, types.TaskListOptions{Filters: filter})
if err != nil {
return err
}
if len(tasks) == 0 {
return fmt.Errorf("nothing found in stack: %s", namespace)
}
format := options.format
if len(format) == 0 {
format = task.DefaultFormat(dockerCli.ConfigFile(), options.quiet)
}
return task.Print(ctx, dockerCli, tasks, idresolver.New(client, options.noResolve), !options.noTrunc, options.quiet, format)
}