package main import ( "fmt" "reflect" "time" "github.com/containers/libpod/cmd/podman/cliconfig" "github.com/containers/libpod/pkg/adapter" "github.com/pkg/errors" "github.com/spf13/cobra" ) var ( waitCommand cliconfig.WaitValues waitDescription = ` podman wait Block until one or more containers stop and then print their exit codes ` _waitCommand = &cobra.Command{ Use: "wait [flags] CONTAINER [CONTAINER...]", Short: "Block on one or more containers", Long: waitDescription, RunE: func(cmd *cobra.Command, args []string) error { waitCommand.InputArgs = args waitCommand.GlobalFlags = MainGlobalOpts return waitCmd(&waitCommand) }, Example: `podman wait --latest podman wait --interval 5000 ctrID podman wait ctrID1 ctrID2`, } ) func init() { waitCommand.Command = _waitCommand waitCommand.SetUsageTemplate(UsageTemplate()) flags := waitCommand.Flags() flags.UintVarP(&waitCommand.Interval, "interval", "i", 250, "Milliseconds to wait before polling for completion") flags.BoolVarP(&waitCommand.Latest, "latest", "l", false, "Act on the latest container podman is aware of") markFlagHiddenForRemoteClient("latest", flags) } func waitCmd(c *cliconfig.WaitValues) error { args := c.InputArgs if len(args) < 1 && !c.Latest { return errors.Errorf("you must provide at least one container name or id") } if c.Interval == 0 { return errors.Errorf("interval must be greater then 0") } interval := time.Duration(c.Interval) * time.Millisecond runtime, err := adapter.GetRuntime(&c.PodmanCommand) if err != nil { return errors.Wrapf(err, "error creating runtime") } defer runtime.Shutdown(false) ok, failures, err := runtime.WaitOnContainers(getContext(), c, interval) if err != nil { return err } for _, id := range ok { fmt.Println(id) } if len(failures) > 0 { keys := reflect.ValueOf(failures).MapKeys() lastKey := keys[len(keys)-1].String() lastErr := failures[lastKey] delete(failures, lastKey) for _, err := range failures { outputError(err) } return lastErr } return nil }