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moby--moby/cli/command/container/wait.go
Sebastiaan van Stijn d5179cb4d4
Minor cleanups in cli/command/container
This change does some minor cleanups in the
cli/command/container package;

- sort imports
- replace `fmt.Fprintf()` with `fmt.Fprintln()` if no formatting is used
- replace `fmt.Errorf()` with `errors.New()` if no formatting is used
- remove some redundant `else`'s

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2016-12-26 01:33:25 +01:00

50 lines
1.1 KiB
Go

package container
import (
"errors"
"fmt"
"strings"
"github.com/docker/docker/cli"
"github.com/docker/docker/cli/command"
"github.com/spf13/cobra"
"golang.org/x/net/context"
)
type waitOptions struct {
containers []string
}
// NewWaitCommand creates a new cobra.Command for `docker wait`
func NewWaitCommand(dockerCli *command.DockerCli) *cobra.Command {
var opts waitOptions
cmd := &cobra.Command{
Use: "wait CONTAINER [CONTAINER...]",
Short: "Block until one or more containers stop, then print their exit codes",
Args: cli.RequiresMinArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
opts.containers = args
return runWait(dockerCli, &opts)
},
}
return cmd
}
func runWait(dockerCli *command.DockerCli, opts *waitOptions) error {
ctx := context.Background()
var errs []string
for _, container := range opts.containers {
status, err := dockerCli.Client().ContainerWait(ctx, container)
if err != nil {
errs = append(errs, err.Error())
continue
}
fmt.Fprintf(dockerCli.Out(), "%d\n", status)
}
if len(errs) > 0 {
return errors.New(strings.Join(errs, "\n"))
}
return nil
}