rospo: modernize

pkgs/by-name/ro/rospo/package.nix

@@ -2,18 +2,19 @@
   lib,
   stdenv,
   buildGoModule,
+  buildPackages,
   fetchFromGitHub,
   installShellFiles,
 }:
 
-buildGoModule rec {
+buildGoModule (finalAttrs: {
   pname = "rospo";
   version = "0.15.0";
 
   src = fetchFromGitHub {
     owner = "ferama";
     repo = "rospo";
-    rev = "v${version}";
+    tag = "v${finalAttrs.version}";
     hash = "sha256-xfCjRAsKJxtYeY2Mx+l1tDtqAF0SKjTCJCh1gCG+Rl8=";
   };
 
@@ -22,19 +23,27 @@ buildGoModule rec {
   ldflags = [
     "-s"
     "-w"
-    "-X github.com/ferama/rospo/cmd.Version=${version}"
+    "-X github.com/ferama/rospo/cmd.Version=${finalAttrs.version}"
   ];
 
   nativeBuildInputs = [ installShellFiles ];
 
   doCheck = false;
 
-  postInstall = lib.optionalString (stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
-    installShellCompletion --cmd rospo \
-      --bash <($out/bin/rospo completion bash) \
-      --fish <($out/bin/rospo completion fish) \
-      --zsh <($out/bin/rospo completion zsh)
-  '';
+  postInstall =
+    let
+      rospoBin =
+        if stdenv.buildPlatform.canExecute stdenv.hostPlatform then
+          placeholder "out"
+        else
+          buildPackages.rospo;
+    in
+    ''
+      installShellCompletion --cmd rospo \
+        --bash <(${rospoBin}/bin/rospo completion bash) \
+        --fish <(${rospoBin}/bin/rospo completion fish) \
+        --zsh <(${rospoBin}/bin/rospo completion zsh)
+    '';
 
   meta = {
     description = "Simple, reliable, persistent ssh tunnels with embedded ssh server";
@@ -43,4 +52,4 @@ buildGoModule rec {
     maintainers = with lib.maintainers; [ sikmir ];
     mainProgram = "rospo";
   };
-}
+})