wl-clipboard-rs: add man pages and shell completions

pkgs/by-name/wl/wl-clipboard-rs/package.nix

@@ -1,6 +1,7 @@
 { lib
 , rustPlatform
 , fetchFromGitHub
+, installShellFiles
 , pkg-config
 , wayland
 , withNativeLibs ? false
@@ -26,11 +27,15 @@ rustPlatform.buildRustPackage rec {
     "--features=native_lib"
   ];
 
-  nativeBuildInputs = lib.optionals withNativeLibs [
+  nativeBuildInputs = [
+    installShellFiles
+  ] ++ lib.optionals withNativeLibs [
     pkg-config
   ];
 
-  buildInputs = lib.optionals withNativeLibs [
+  buildInputs = [
+    installShellFiles
+  ]++ lib.optionals withNativeLibs [
     wayland
   ];
 
@@ -47,6 +52,21 @@ rustPlatform.buildRustPackage rec {
     "--skip=tests::copy::copy_test"
   ];
 
+  postInstall = ''
+    installManPage target/man/wl-copy.1
+    installManPage target/man/wl-paste.1
+
+    installShellCompletion --cmd wl-copy \
+      --bash target/completions/wl-copy.bash \
+      --fish target/completions/wl-copy.fish \
+      --zsh target/completions/_wl-copy
+
+    installShellCompletion --cmd wl-paste \
+      --bash target/completions/wl-paste.bash \
+      --fish target/completions/wl-paste.fish \
+      --zsh target/completions/_wl-paste
+  '';
+
   meta = with lib; {
     description = "Command-line copy/paste utilities for Wayland, written in Rust";
     homepage = "https://github.com/YaLTeR/wl-clipboard-rs";