nixpkgs-overlay/pkgs/nim-packages/generic.nix

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{ stdenv, nim }:
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{ name, src, nimDeps ? [], buildInputs ? [], patches ? [], patchPhase ? "", ... }:
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let
getRecursiveBuildInputs = deps: with stdenv.lib.lists;
optionals (deps != []) ((head deps).buildInputs ++
(getRecursiveBuildInputs (head deps).nimDeps) ++
(getRecursiveBuildInputs (tail deps)));
recursiveBuildInputs = buildInputs ++ (getRecursiveBuildInputs nimDeps);
in
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stdenv.mkDerivation {
name = name;
src = src;
patches = patches;
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nativeBuildInputs = [ nim ];
buildInputs = recursiveBuildInputs;
nimDeps = nimDeps;
patchPhase = patchPhase;
LD_LIBRARY_PATH = stdenv.lib.makeLibraryPath recursiveBuildInputs;
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buildPhase = ''
HOME=$TMPDIR
mkdir -p $HOME/.nimble/pkgs
echo "[]" > $HOME/.nimble/packages_official.json
'' + toString (map (dep: ''
if [ -d ${dep}/.nimble ]; then
cp -R ${dep}/.nimble/pkgs $HOME/.nimble/
else
cp -R ${dep} $HOME/.nimble/pkgs/${dep.name}
fi
''
) nimDeps) + ''
nimble install
'';
installPhase = ''
mkdir $out
nimbleDir=$TMPDIR/.nimble
if [ -d $nimbleDir/bin ]; then
cp -RL $nimbleDir/bin $out
fi
numberNimFiles=$(find $nimbleDir/pkgs/${name} -type f -name "*.nim" | wc -l)
numberDirectories=$(find $nimbleDir/pkgs/${name} -mindepth 1 -type d | wc -l)
if [ $numberNimFiles -gt 0 ] || [ $numberDirectories -gt 0 ]; then
mkdir -p $out/.nimble
cp -R $nimbleDir/pkgs $out/.nimble
fi
'';
}