From bbd4254d00e8c69c4c958ddb51fb18637ca7f9b8 Mon Sep 17 00:00:00 2001
From: Mel Bourgeois <mason.bourgeois@gmail.com>
Date: Wed, 19 Jun 2024 18:25:56 -0500
Subject: [PATCH] nixgl: make desktop files point to wrapped exe

Some desktop files will refer to the absolute path of the original
derivation, which would bypass nixGL wrapping. So we need to replace the
path with the path to the wrapper derivation to ensure the wrapped
version is always launched.
---
 modules/misc/nixgl.nix | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/modules/misc/nixgl.nix b/modules/misc/nixgl.nix
index b6cff7cc0..16a00a755 100644
--- a/modules/misc/nixgl.nix
+++ b/modules/misc/nixgl.nix
@@ -57,6 +57,17 @@ in {
               echo "exec -a \"\$0\" ${cfg.prefix} $file \"\$@\"" >> "$out/bin/$(basename $file)"
               chmod +x "$out/bin/$(basename $file)"
             done
+
+            # If .desktop files refer to the old package, replace the references
+            for dsk in "$out/share/applications"/*.desktop ; do
+              if ! grep "${pkg.out}" "$dsk" > /dev/null; then
+                continue
+              fi
+              src="$(readlink "$dsk")"
+              rm "$dsk"
+              sed "s|${pkg.out}|$out|g" "$src" > "$dsk"
+            done
+
             shopt -u nullglob # Revert nullglob back to its normal default state
           '';
         }));