Merge pull request #328729 from msfjarvis/kondo-completions

kondo: install shell completion

pkgs/applications/misc/kondo/default.nix

@@ -1,4 +1,4 @@
-{ lib, rustPlatform, fetchFromGitHub }:
+{ lib, stdenv, rustPlatform, fetchFromGitHub, installShellFiles }:
 
 rustPlatform.buildRustPackage rec {
   pname = "kondo";
@@ -13,6 +13,15 @@ rustPlatform.buildRustPackage rec {
 
   cargoHash = "sha256-WF4GHj/5VYrTUh1E3t29zbpSLjJ6g7RWVpLYqg9msZg=";
 
+  nativeBuildInputs = [ installShellFiles ];
+
+  postInstall = lib.optionalString (stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
+    installShellCompletion --cmd kondo \
+      --bash <($out/bin/kondo --completions bash) \
+      --fish <($out/bin/kondo --completions fish) \
+      --zsh <($out/bin/kondo --completions zsh)
+  '';
+
   meta = with lib; {
     description = "Save disk space by cleaning unneeded files from software projects";
     homepage = "https://github.com/tbillington/kondo";