asak: add man pages and shell completions (NixOS#367372)

pkgs/by-name/as/asak/package.nix

@@ -3,6 +3,7 @@
   fetchFromGitHub,
   rustPlatform,
   pkg-config,
+  installShellFiles,
   alsa-lib,
   libjack2,
 }:
@@ -14,24 +15,33 @@ rustPlatform.buildRustPackage rec {
   src = fetchFromGitHub {
     owner = "chaosprint";
     repo = "asak";
-    rev = "v${version}";
+    tag = "v${version}";
     hash = "sha256-Kq1WdVcTRdz6vJxUDd0bqb2bfrNGCl611upwYploR7w=";
   };
 
   cargoHash = "sha256-SS4BDhORiTV/HZhL3F9zwF8oBu/VFVYhF5Jzp2j0QFI=";
 
-  nativeBuildInputs = [ pkg-config ];
+  nativeBuildInputs = [
+    pkg-config
+    installShellFiles
+  ];
 
   buildInputs = [
     alsa-lib
     libjack2
   ];
 
-  # There is no tests
-  doCheck = false;
+  postInstall = ''
+    installManPage target/man/asak.1
+
+    installShellCompletion --cmd asak \
+      --bash target/completions/asak.bash \
+      --fish target/completions/asak.fish \
+      --zsh target/completions/_asak
+  '';
 
   meta = {
-    description = "A cross-platform audio recording/playback CLI tool with TUI, written in Rust";
+    description = "Cross-platform audio recording/playback CLI tool with TUI, written in Rust";
     homepage = "https://github.com/chaosprint/asak";
     changelog = "https://github.com/chaosprint/asak/releases/tag/v${version}";
     license = lib.licenses.mit;