From ea78df58fbf372d3de7804f36a6a31b13fbcebd1 Mon Sep 17 00:00:00 2001
From: kpbaks <kristoffer.pbs@tuta.io>
Date: Sat, 3 Jan 2026 20:54:16 +0100
Subject: [PATCH] docker-language-server: install shell completion

---
 pkgs/by-name/do/docker-language-server/package.nix | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/pkgs/by-name/do/docker-language-server/package.nix b/pkgs/by-name/do/docker-language-server/package.nix
index 7fe0a09825c1..89f525736b63 100644
--- a/pkgs/by-name/do/docker-language-server/package.nix
+++ b/pkgs/by-name/do/docker-language-server/package.nix
@@ -1,10 +1,12 @@
 {
+  stdenv,
   lib,
   fetchFromGitHub,
   buildGoModule,
   docker,
   gotestsum,
   versionCheckHook,
+  installShellFiles,
 }:
 
 buildGoModule (finalAttrs: {
@@ -20,6 +22,10 @@ buildGoModule (finalAttrs: {
 
   vendorHash = "sha256-ztA+/4l180UKTKrsqTyysDcD4oQSDgnBYUaiKDF6LvI=";
 
+  nativeBuildInputs = [
+    installShellFiles
+  ];
+
   nativeCheckInputs = [
     docker
     gotestsum
@@ -53,6 +59,13 @@ buildGoModule (finalAttrs: {
   ];
   doInstallCheck = true;
 
+  postInstall = lib.optionalString (stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
+    installShellCompletion --cmd '${finalAttrs.meta.mainProgram}' \
+      --bash <("$out/bin/${finalAttrs.meta.mainProgram}" completion bash) \
+      --zsh <("$out/bin/${finalAttrs.meta.mainProgram}" completion zsh) \
+      --fish <("$out/bin/${finalAttrs.meta.mainProgram}" completion fish)
+  '';
+
   meta = {
     description = "Language server for providing language features for file types in the Docker ecosystem (Dockerfiles, Compose files, and Bake files)";
     homepage = "https://github.com/docker/docker-language-server";