Function LoadBackend

commands/execenv/loading.go:61–91

LoadBackend is a pre-run function that load the repository and the Backend for use in a command When using this function you also need to use CloseBackend as a post-run

(env *Env)

// LoadBackend is a pre-run function that load the repository and the Backend for use in a command
// When using this function you also need to use CloseBackend as a post-run
func LoadBackend(env *Env) func(*cobra.Command, []string) error {
	return func(cmd *cobra.Command, args []string) error {
		err := LoadRepo(env)(cmd, args)
		if err != nil {
			return err
		}

		var events chan cache.BuildEvent
		env.Backend, events = cache.NewRepoCache(env.Repo)

		err = CacheBuildProgressBar(env, events)
		if err != nil {
			return err
		}

		cleaner := func(env *Env) interrupt.CleanerFunc {
			return func() error {
				if env.Backend != nil {
					err := env.Backend.Close()
					env.Backend = nil
					return err
				}
				return nil
			}
		}

		// Cleanup properly on interrupt
		interrupt.RegisterCleaner(cleaner(env))
		return nil
	}
}

// LoadBackendEnsureUser is the same as LoadBackend, but also ensure that the user has configured
// an identity. Use this pre-run function when an error after using the configured user won't