78 lines
2.2 KiB
Nix
78 lines
2.2 KiB
Nix
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{ stdenv, ghc, makeWrapper, coreutils, writeScript }:
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let
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ghcjs = ghc;
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packageDBFlag = "-package-db";
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GHCGetPackages = writeScript "ghc-get-packages.sh" ''
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#! ${stdenv.shell}
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# Usage:
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# $1: version of GHC
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# $2: invocation path of GHC
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# $3: prefix
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version="$1"
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if test -z "$3"; then
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prefix="${packageDBFlag} "
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else
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prefix="$3"
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fi
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PATH="$PATH:$2"
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IFS=":"
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for p in $PATH; do
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for i in "$p/../share/ghcjs/$system-${ghcjs.version}-${ghcjs.ghc.version}"{,/lib,/ghcjs}"/package.conf.d" "$p/../lib/ghcjs-${ghc.version}_ghc-${ghc.ghc.version}/package.conf.d" ; do
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# output takes place here
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test -f $i/package.cache && echo -n " $prefix$i"
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done
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done
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'';
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GHCPackages = writeScript "ghc-packages.sh" ''
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#! ${stdenv.shell} -e
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declare -A GHC_PACKAGES_HASH # using bash4 hashs to get uniq paths
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for arg in $(${GHCGetPackages} ${ghcjs.version} "$(dirname $0)"); do # Why is ghc.version passed in from here instead of captured in the other script directly?
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case "$arg" in
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${packageDBFlag}) ;;
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*)
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CANONICALIZED="$(${coreutils}/bin/readlink -f -- "$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 "$path:"
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done
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'';
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in
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stdenv.mkDerivation {
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name = "ghcjs-ghc${ghcjs.ghc.version}-${ghcjs.version}-wrapper";
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buildInputs = [makeWrapper];
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propagatedBuildInputs = [ghcjs];
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unpackPhase = "true";
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installPhase = ''
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runHook preInstall
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mkdir -p $out/bin
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for prg in ghcjs ; do
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makeWrapper $ghc/bin/$prg $out/bin/$prg --add-flags "\$(${GHCGetPackages} ${ghcjs.version} \"\$(dirname \$0)\")"
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done
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for prg in ghcjs-pkg ; do
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makeWrapper $ghc/bin/$prg $out/bin/$prg --add-flags "\$(${GHCGetPackages} ${ghcjs.version} \"\$(dirname \$0)\" -${packageDBFlag}=)"
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done
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mkdir -p $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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mkdir -p $out/share/doc
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ln -s $ghc/lib $out/lib
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ln -s $ghc/share/doc/ghc $out/share/doc/ghc-${ghcjs.version}
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runHook postInstall
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'';
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ghc = ghcjs;
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inherit GHCGetPackages GHCPackages;
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inherit (ghcjs) meta version;
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}
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