dotfiles-guix/home/nix/programs/nixGL.nix

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2024-11-09 23:16:54 +00:00
{ pkgs, nixgl, ... }:
let
nixGL = "${nixgl.packages.${pkgs.system}.nixGLIntel}/bin/nixGLIntel";
in
pkg:
(pkg.overrideAttrs (old: {
buildCommand = ''
set -eo pipefail
${
# Heavily inspired by https://stackoverflow.com/a/68523368/6259505
pkgs.lib.concatStringsSep "\n" (map (outputName: ''
echo "Copying output ${outputName}"
set -x
cp -rs --no-preserve=mode "${pkg.${outputName}}" "''$${outputName}"
set +x
'') (old.outputs or [ "out" ]))}
rm -rf $out/bin/*
shopt -s nullglob # Prevent loop from running if no files
for file in ${pkg.out}/bin/*; do
echo "#!${pkgs.bash}/bin/bash" > "$out/bin/$(basename $file)"
echo "exec -a \"\$0\" ${nixGL} $file \"\$@\"" >> "$out/bin/$(basename $file)"
chmod +x "$out/bin/$(basename $file)"
done
shopt -u nullglob # Revert nullglob back to its normal default state
'';
}))