Function watchCommand

cmd/compose/watch.go:40–66

(p *ProjectOptions, dockerCli command.Cli, backendOptions *BackendOptions)

}

func watchCommand(p *ProjectOptions, dockerCli command.Cli, backendOptions *BackendOptions) *cobra.Command {
	watchOpts := watchOptions{
		ProjectOptions: p,
	}
	buildOpts := buildOptions{
		ProjectOptions: p,
	}
	cmd := &cobra.Command{
		Use:   "watch [SERVICE...]",
		Short: "Watch build context for service and rebuild/refresh containers when files are updated",
		PreRunE: Adapt(func(ctx context.Context, args []string) error {
			return nil
		}),
		RunE: AdaptCmd(func(ctx context.Context, cmd *cobra.Command, args []string) error {
			if cmd.Parent().Name() == "alpha" {
				logrus.Warn("watch command is now available as a top level command")
			}
			return runWatch(ctx, dockerCli, backendOptions, watchOpts, buildOpts, args)
		}),
		ValidArgsFunction: completeServiceNames(dockerCli, p),
	}

	cmd.Flags().BoolVar(&buildOpts.quiet, "quiet", false, "hide build output")
	cmd.Flags().BoolVar(&watchOpts.prune, "prune", true, "Prune dangling images on rebuild")
	cmd.Flags().BoolVar(&watchOpts.noUp, "no-up", false, "Do not build & start services before watching")
	return cmd
}

func runWatch(ctx context.Context, dockerCli command.Cli, backendOptions *BackendOptions, watchOpts watchOptions, buildOpts buildOptions, services []string) error {
	backend, err := compose.NewComposeService(dockerCli, backendOptions.Options...)