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moby--moby/api/client/wait.go
Vincent Demeester 4c7f0d268f
Rework usage of context.Context in api/client
Make better default usage on context.Context on the `api/client` package
to share the context (it is useless if not shared, which was the case
for a lot of commands).

Signed-off-by: Vincent Demeester <vincent@sbr.pm>
2016-05-21 15:57:57 +02:00

39 lines
929 B
Go

package client
import (
"fmt"
"strings"
"golang.org/x/net/context"
Cli "github.com/docker/docker/cli"
flag "github.com/docker/docker/pkg/mflag"
)
// CmdWait blocks until a container stops, then prints its exit code.
//
// If more than one container is specified, this will wait synchronously on each container.
//
// Usage: docker wait CONTAINER [CONTAINER...]
func (cli *DockerCli) CmdWait(args ...string) error {
cmd := Cli.Subcmd("wait", []string{"CONTAINER [CONTAINER...]"}, Cli.DockerCommands["wait"].Description, true)
cmd.Require(flag.Min, 1)
cmd.ParseFlags(args, true)
ctx := context.Background()
var errs []string
for _, name := range cmd.Args() {
status, err := cli.client.ContainerWait(ctx, name)
if err != nil {
errs = append(errs, err.Error())
} else {
fmt.Fprintf(cli.out, "%d\n", status)
}
}
if len(errs) > 0 {
return fmt.Errorf("%s", strings.Join(errs, "\n"))
}
return nil
}