qbisi
92 lines
2.7 KiB
Nix
92 lines
2.7 KiB
Nix
{
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lib,
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stdenv,
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buildEnv,
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runCommand,
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makeBinaryWrapper,
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# manually pased
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python,
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requiredPythonModules,
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# extra opts
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extraLibs ? [ ],
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extraOutputsToInstall ? [ ],
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postBuild ? "",
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ignoreCollisions ? false,
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permitUserSite ? false,
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# Wrap executables with the given argument.
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makeWrapperArgs ? [ ],
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}:
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# Create a python executable that knows about additional packages.
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let
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env =
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let
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paths = requiredPythonModules (extraLibs ++ [ python ]) ++ [
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(runCommand "bin" { } ''
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mkdir -p $out/bin
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'')
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];
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pythonPath = "${placeholder "out"}/${python.sitePackages}";
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pythonExecutable = "${placeholder "out"}/bin/${python.executable}";
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in
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buildEnv {
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name = "${python.name}-env";
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inherit paths;
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inherit ignoreCollisions;
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extraOutputsToInstall = [ "out" ] ++ extraOutputsToInstall;
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nativeBuildInputs = [ makeBinaryWrapper ];
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postBuild = ''
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for path in ${lib.concatStringsSep " " paths}; do
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if [ -d "$path/bin" ]; then
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cd "$path/bin"
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for prg in *; do
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if [ -f "$prg" ] && [ -x "$prg" ]; then
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rm -f "$out/bin/$prg"
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if [ "$prg" = "${python.executable}" ]; then
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makeWrapper "${python.interpreter}" "$out/bin/$prg" \
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--inherit-argv0 \
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${lib.optionalString (!permitUserSite) ''--set PYTHONNOUSERSITE "true"''} \
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${lib.concatStringsSep " " makeWrapperArgs}
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elif [ "$(readlink "$prg")" = "${python.executable}" ]; then
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ln -s "${python.executable}" "$out/bin/$prg"
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else
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makeWrapper "$path/bin/$prg" "$out/bin/$prg" \
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--set NIX_PYTHONPREFIX "$out" \
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--set NIX_PYTHONEXECUTABLE ${pythonExecutable} \
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--set NIX_PYTHONPATH ${pythonPath} \
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${lib.optionalString (!permitUserSite) ''--set PYTHONNOUSERSITE "true"''} \
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${lib.concatStringsSep " " makeWrapperArgs}
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fi
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fi
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done
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fi
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done
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''
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+ postBuild;
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inherit (python) meta;
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passthru = python.passthru // {
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interpreter = "${env}/bin/${python.executable}";
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inherit python;
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env = stdenv.mkDerivation {
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name = "interactive-${python.name}-environment";
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nativeBuildInputs = [ env ];
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buildCommand = ''
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echo >&2 ""
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echo >&2 "*** Python 'env' attributes are intended for interactive nix-shell sessions, not for building! ***"
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echo >&2 ""
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exit 1
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'';
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};
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};
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};
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in
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env
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