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36 lines
1.2 KiB
Nix
36 lines
1.2 KiB
Nix
# Call once on import to load global context
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{ pkgs, config }:
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# Wrap a single package
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pkg:
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if config.nixGLPrefix == "" then
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pkg
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else
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# Wrap the package's binaries with nixGL, while preserving the rest of
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# the outputs and derivation attributes.
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(pkg.overrideAttrs (old: {
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name = "nixGL-${pkg.name}";
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buildCommand = ''
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set -eo pipefail
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${
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# Heavily inspired by https://stackoverflow.com/a/68523368/6259505
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pkgs.lib.concatStringsSep "\n" (
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map (outputName: ''
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echo "Copying output ${outputName}"
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set -x
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cp -rs --no-preserve=mode "${pkg.${outputName}}" "''$${outputName}"
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set +x
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'') (old.outputs or [ "out" ])
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)
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}
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rm -rf $out/bin/*
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shopt -s nullglob # Prevent loop from running if no files
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for file in ${pkg.out}/bin/*; do
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echo "#!${pkgs.bash}/bin/bash" > "$out/bin/$(basename $file)"
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echo "exec -a \"\$0\" ${config.nixGLPrefix} $file \"\$@\"" >> "$out/bin/$(basename $file)"
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chmod +x "$out/bin/$(basename $file)"
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done
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shopt -u nullglob # Revert nullglob back to its normal default state
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'';
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}))
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