Add kotlin-language-server

pkgs/development/tools/kotlin-language-server/default.nix

@@ -0,0 +1,32 @@
+{ lib, stdenv, fetchurl, unzip, openjdk11, gradle }:
+
+stdenv.mkDerivation rec {
+  pname = "kotlin-language-server";
+  version = "1.1.2";
+  src = fetchurl {
+    url = "https://github.com/fwcd/kotlin-language-server/releases/download/${version}/server.zip";
+    sha256 = "d8850ee2be8c49e5e642c4a41f52304098ae0bcce009e4d91531a9aeecd64916";
+  };
+
+  dontBuild = true;
+
+  installPhase = ''
+    mkdir -p $out/lib
+    mkdir -p $out/bin
+    cp -r lib/* $out/lib
+    cp -r bin/* $out/bin
+  '';
+
+  nativeBuildInputs = [ unzip gradle ];
+  buildInputs = [ openjdk11 gradle ];
+
+  meta = {
+    description = "kotlin language server";
+    longDescription = ''
+      About Kotlin code completion, linting and more for any editor/IDE
+      using the Language Server Protocol Topics'';
+    homepage = "https://github.com/fwcd/kotlin-language-server";
+    license = lib.licenses.mit;
+    platforms = lib.platforms.unix;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -12385,6 +12385,8 @@ with pkgs;
   kotlin = callPackage ../development/compilers/kotlin { };
   kotlin-native = callPackage ../development/compilers/kotlin/native.nix { };
 
+  kotlin-language-server = callPackage ../development/tools/kotlin-language-server {};
+
   lazarus = callPackage ../development/compilers/fpc/lazarus.nix {
     fpc = fpc;
   };