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https://github.com/NixOS/nixpkgs.git
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54 lines
1.8 KiB
Nix
54 lines
1.8 KiB
Nix
{stdenv, ghc, makeWrapper}:
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stdenv.mkDerivation {
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name = "ghc-${ghc.version}-wrapper";
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buildInputs = [makeWrapper];
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propagatedBuildInputs = [ghc];
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unpackPhase = "true";
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installPhase = ''
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ensureDir $out/bin
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cp $GHCGetPackages $out/bin/ghc-get-packages.sh
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chmod 755 $out/bin/ghc-get-packages.sh
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for prg in ghc ghci ghc-${ghc.version} ghci-${ghc.version}; do
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makeWrapper $ghc/bin/$prg $out/bin/$prg --add-flags "\$($out/bin/ghc-get-packages.sh ${ghc.version} \"\$(dirname \$0)\")"
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done
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for prg in runghc runhaskell; do
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makeWrapper $ghc/bin/$prg $out/bin/$prg --add-flags "\$($out/bin/ghc-get-packages.sh ${ghc.version} \"\$(dirname \$0)\" \" -package-conf --ghc-arg=\")"
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done
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for prg in ghc-pkg ghc-pkg-${ghc.version}; do
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makeWrapper $ghc/bin/$prg $out/bin/$prg --add-flags "\$($out/bin/ghc-get-packages.sh ${ghc.version} \"\$(dirname \$0)\" --package-conf=)"
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done
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for prg in hp2ps hpc hasktags hsc2hs; do
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test -x $ghc/bin/$prg && ln -s $ghc/bin/$prg $out/bin/$prg
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done
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cat >> $out/bin/ghc-packages << EOF
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#! /bin/bash -e
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declare -A GHC_PACKAGES_HASH # using bash4 hashs to get uniq paths
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for arg in \$($out/bin/ghc-get-packages.sh ${ghc.version} \"\$(dirname \$0)\"); do
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case "\$arg" in
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-package-conf) ;;
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*)
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CANONICALIZED="\$(readlink -f "\$arg")"
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GHC_PACKAGES_HASH["\$CANONICALIZED"]= ;;
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esac
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done
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for path in \''${!GHC_PACKAGES_HASH[@]}; do
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echo -n "\$path:"
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done
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EOF
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chmod +x $out/bin/ghc-packages
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ensureDir $out/nix-support
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ln -s $out/nix-support/propagated-build-inputs $out/nix-support/propagated-user-env-packages
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'';
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GHCGetPackages = ./ghc-get-packages.sh;
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inherit ghc;
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inherit (ghc) meta;
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ghcVersion = ghc.version;
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}
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