forked from mirrors/nixpkgs
9b3a2e66b1
Some python packages (e.g. functools32) are conditionally disabled for certain interpreter versions by having them return null instead of a derivation. `getRecursivePropagatedBuildInputs` fails if such a package is part of the dependency tree. This commit makes it only recurse into derivations and ignore everything else. This also deduplicates the final plugin list to improve startup time.
114 lines
3.4 KiB
Nix
114 lines
3.4 KiB
Nix
{ lib, python3, buildEnv, writeText, runCommandCC, stdenv, runCommand
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, vapoursynth, makeWrapper, withPlugins }:
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plugins: let
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pythonEnvironment = python3.buildEnv.override {
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extraLibs = plugins;
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};
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getRecursivePropagatedBuildInputs = pkgs: lib.flatten
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(map
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(pkg: let cleanPropagatedBuildInputs = lib.filter lib.isDerivation pkg.propagatedBuildInputs;
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in cleanPropagatedBuildInputs ++ (getRecursivePropagatedBuildInputs cleanPropagatedBuildInputs))
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pkgs);
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deepPlugins = lib.unique (plugins ++ (getRecursivePropagatedBuildInputs plugins));
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pluginsEnv = buildEnv {
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name = "vapoursynth-plugins-env";
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pathsToLink = [ "/lib/vapoursynth" ];
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paths = deepPlugins;
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};
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pluginLoader = let
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source = writeText "vapoursynth-nix-plugins.c" ''
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void VSLoadPluginsNix(void (*load)(void *data, const char *path), void *data) {
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${lib.concatMapStringsSep "" (path: "load(data, \"${path}/lib/vapoursynth\");") deepPlugins}
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}
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'';
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in
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runCommandCC "vapoursynth-plugin-loader" {
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executable = true;
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preferLocalBuild = true;
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allowSubstitutes = false;
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} ''
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mkdir -p $out/lib
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$CC -shared -fPIC ${source} -o "$out/lib/libvapoursynth-nix-plugins${ext}"
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'';
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ext = stdenv.targetPlatform.extensions.sharedLibrary;
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in
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runCommand "${vapoursynth.name}-with-plugins" {
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nativeBuildInputs = [ makeWrapper ];
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passthru = {
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inherit python3;
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withPlugins = plugins': withPlugins (plugins ++ plugins');
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};
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} ''
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mkdir -p \
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$out/bin \
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$out/lib/pkgconfig \
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$out/lib/vapoursynth \
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$out/${python3.sitePackages}
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for textFile in \
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lib/pkgconfig/vapoursynth{,-script}.pc \
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lib/libvapoursynth.la \
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lib/libvapoursynth-script.la \
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${python3.sitePackages}/vapoursynth.la
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do
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substitute ${vapoursynth}/$textFile $out/$textFile \
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--replace "${vapoursynth}" "$out"
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done
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for binaryPlugin in ${pluginsEnv}/lib/vapoursynth/*; do
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ln -s $binaryPlugin $out/''${binaryPlugin#"${pluginsEnv}/"}
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done
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for pythonPlugin in ${pythonEnvironment}/${python3.sitePackages}/*; do
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ln -s $pythonPlugin $out/''${pythonPlugin#"${pythonEnvironment}/"}
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done
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for binaryFile in \
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lib/libvapoursynth${ext} \
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lib/libvapoursynth-script${ext}.0.0.0
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do
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old_rpath=$(patchelf --print-rpath ${vapoursynth}/$binaryFile)
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new_rpath="$old_rpath:$out/lib"
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patchelf \
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--set-rpath "$new_rpath" \
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--output $out/$binaryFile \
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${vapoursynth}/$binaryFile
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patchelf \
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--add-needed libvapoursynth-nix-plugins${ext} \
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$out/$binaryFile
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done
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for binaryFile in \
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${python3.sitePackages}/vapoursynth${ext} \
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bin/.vspipe-wrapped
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do
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old_rpath=$(patchelf --print-rpath ${vapoursynth}/$binaryFile)
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new_rpath="''${old_rpath//"${vapoursynth}"/"$out"}"
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patchelf \
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--set-rpath "$new_rpath" \
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--output $out/$binaryFile \
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${vapoursynth}/$binaryFile
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done
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ln -s \
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${pluginLoader}/lib/libvapoursynth-nix-plugins${ext} \
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$out/lib/libvapoursynth-nix-plugins${ext}
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ln -s ${vapoursynth}/include $out/include
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ln -s ${vapoursynth}/lib/vapoursynth/* $out/lib/vapoursynth
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ln -s \
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libvapoursynth-script${ext}.0.0.0 \
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$out/lib/libvapoursynth-script${ext}
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ln -s \
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libvapoursynth-script${ext}.0.0.0 \
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$out/lib/libvapoursynth-script${ext}.0
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makeWrapper $out/bin/.vspipe-wrapped $out/bin/vspipe \
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--prefix PYTHONPATH : $out/${python3.sitePackages}
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''
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