github.com/squaremo/docker@v1.3.2-0.20150516120342-42cfc9554972/api/client/wait.go (about)

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