Add completions to package

.envrc

@@ -0,0 +1 @@
+use flake

.gitignore

@@ -0,0 +1,2 @@
+result
+.direnv

flake.nix

@@ -68,6 +68,13 @@
               pname = "natstonotify";
               src = src;
               vendorHash = "sha256-xAFxgUH2QUkmdCXJB4NzURozedgMIyawdf/g3vxOyC0=";
+              nativeBuildInputs = [ pkgs.installShellFiles ];
+              postInstall = ''
+                installShellCompletion --cmd natstonotify \
+                --bash <($out/bin/natstonotify completion bash) \
+                --zsh <($out/bin/natstonotify completion zsh) \
+                --fish <($out/bin/natstonotify completion fish)
+              '';
             };
         }
       );
@@ -78,6 +85,7 @@
             packages = with pkgs; [
               go
               golangci-lint
+              (self.packages.${pkgs.system}.default)
             ];
           };
         }

main.go

@@ -60,8 +60,9 @@ func main() {
 		Usage:                 "NATS-powered notification service",
 		Commands: []*cli.Command{
 			{
-				Name:  "server",
+				Name:                  "server",
-				Usage: "Start the server",
+				Usage:                 "Start the server",
+				EnableShellCompletion: true,
 				Action: func(ctx context.Context, cmd *cli.Command) error {
 					b, err := bus.NewNotifyBus()
 					if err != nil {
@@ -105,10 +106,11 @@ func main() {
 				},
 			},
 			{
-				Name:      "notify",
+				Name:                  "notify",
-				Aliases:   []string{"n"},
+				Aliases:               []string{"n"},
-				Usage:     "Send a notification",
+				Usage:                 "Send a notification",
-				ArgsUsage: "SUMMARY [BODY]",
+				ArgsUsage:             "SUMMARY [BODY]",
+				EnableShellCompletion: true,
 				Flags: []cli.Flag{
 					&cli.BoolFlag{
 						Name:  "local",