github.com/ncdc/docker@v0.10.1-0.20160129113957-6c6729ef5b74/api/client/wait.go (about)

     1  package client
     2  
     3  import (
     4  	"fmt"
     5  	"strings"
     6  
     7  	Cli "github.com/docker/docker/cli"
     8  	flag "github.com/docker/docker/pkg/mflag"
     9  )
    10  
    11  // CmdWait blocks until a container stops, then prints its exit code.
    12  //
    13  // If more than one container is specified, this will wait synchronously on each container.
    14  //
    15  // Usage: docker wait CONTAINER [CONTAINER...]
    16  func (cli *DockerCli) CmdWait(args ...string) error {
    17  	cmd := Cli.Subcmd("wait", []string{"CONTAINER [CONTAINER...]"}, Cli.DockerCommands["wait"].Description, true)
    18  	cmd.Require(flag.Min, 1)
    19  
    20  	cmd.ParseFlags(args, true)
    21  
    22  	var errs []string
    23  	for _, name := range cmd.Args() {
    24  		status, err := cli.client.ContainerWait(name)
    25  		if err != nil {
    26  			errs = append(errs, fmt.Sprintf("Failed to wait container (%s): %s", name, err))
    27  		} else {
    28  			fmt.Fprintf(cli.out, "%d\n", status)
    29  		}
    30  	}
    31  	if len(errs) > 0 {
    32  		return fmt.Errorf("%s", strings.Join(errs, "\n"))
    33  	}
    34  	return nil
    35  }