From 09e457603eca4a3450f92a89cd7e60dffe14b971 Mon Sep 17 00:00:00 2001
From: Alexis Praga <alexis@praga.dev>
Date: Tue, 19 May 2026 11:28:51 +0200
Subject: [PATCH] rtg-tools: fix runtime issues

On Github runner, cat is no available in PATH.
Also, rtg-tools require a default configuration file
but the current version in nixpkgs was not writing
it.
---
 pkgs/by-name/rt/rtg-tools/package.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/by-name/rt/rtg-tools/package.nix b/pkgs/by-name/rt/rtg-tools/package.nix
index 226cdc1d4bd7..8cf9eee5e190 100644
--- a/pkgs/by-name/rt/rtg-tools/package.nix
+++ b/pkgs/by-name/rt/rtg-tools/package.nix
@@ -52,9 +52,10 @@ stdenv.mkDerivation (finalAttrs: {
       --replace-fail awk ${lib.getExe gawk} \
       --replace-fail "hostname -s" "${lib.getExe hostname} -s" \
       --replace-fail dirname ${lib.getExe' coreutils "dirname"} \
-      --replace-fail readlink ${lib.getExe' coreutils "readlink"}
+      --replace-fail readlink ${lib.getExe' coreutils "readlink"} \
+      --replace-fail cat ${lib.getExe' coreutils "cat"}
 
-    sed -i '/USER_JAVA_OPTS=$RTG_JAVA_OPTS/a mkdir -p $HOME/.config/rtg-tools'  installer/rtg
+    sed -i '/# Now write the selection to local config/i mkdir -p $HOME/.config/rtg-tools' installer/rtg
   '';
 
   checkPhase = ''