From 30328c3c3327d41b813cc4fd4f7e4eaaded8bc6e Mon Sep 17 00:00:00 2001
From: ryneeverett <ryneeverett@gmail.com>
Date: Fri, 24 Apr 2020 19:02:31 +0000
Subject: [PATCH] ycmd: typescript completion support

Link the already-packaged typescript package so that ycmd will support
completions for javascript and typescript filetypes.

The structure of these installation directories is "documented" here:
<https://github.com/ycm-core/ycmd/blob/master/build.py>.

I don't completely understand why the language support is passed as
optional attrs Is it because folks want to build leaner packages and
pass null or because they want to target particular dependencies? At any
rate I followed the pattern.
---
 pkgs/development/tools/misc/ycmd/default.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/development/tools/misc/ycmd/default.nix b/pkgs/development/tools/misc/ycmd/default.nix
index aee7af17730..02298d93b8a 100644
--- a/pkgs/development/tools/misc/ycmd/default.nix
+++ b/pkgs/development/tools/misc/ycmd/default.nix
@@ -2,6 +2,7 @@
 , gocode ? null
 , godef ? null
 , gotools ? null
+, nodePackages ? null
 , rustracerd ? null
 , fixDarwinDylibNames, Cocoa ? null
 }:
@@ -69,6 +70,9 @@ stdenv.mkDerivation {
     TARGET=$out/lib/ycmd/third_party/go/src/golang.org/x/tools/cmd/gopls
     mkdir -p $TARGET
     ln -sf ${gotools}/bin/gopls $TARGET
+  '' + lib.optionalString (nodePackages != null) ''
+    TARGET=$out/lib/ycmd/third_party/tsserver
+    ln -sf ${nodePackages.typescript} $TARGET
   '' + lib.optionalString (rustracerd != null) ''
     TARGET=$out/lib/ycmd/third_party/racerd/target/release
     mkdir -p $TARGET