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nixfiles/pkgs/build-support/writePythonScript.nix

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Nix

{
python3,
makeWrapper,
runCommand,
lib,
}:
{
name,
text,
runtimePackages ? ps: [],
pythonPackage ? python3,
runtimeInputs ? [],
meta ? {},
passthru ? {},
derivationArgs ? {},
}:
let
pythonWithPackages = pythonPackage.withPackages runtimePackages;
in runCommand name ({
passAsFile = [ "text" ] ++ (derivationArgs.passAsFile or []);
meta = {
mainProgram = name;
} // meta // (derivationArgs.meta or {});
passthru = passthru // (derivationArgs.passthru or {});
nativeBuildInputs = [ makeWrapper ] ++ (derivationArgs.nativeBuildInputs or []);
executable = true;
destination = "/bin/${name}";
allowSubstitutes = true;
preferLocalBuild = false;
text = ''
#!${lib.getExe pythonWithPackages}
${text}
'';
} // (
builtins.removeAttrs derivationArgs [ "passAsFile" "meta" "passthru" "nativeBuildInputs" ]
))
''
mkdir -p $out/bin
target=$out/bin/${lib.escapeShellArg name}
cp "$textPath" "$target"
chmod +x "$target"
wrapProgram "$target" --prefix PATH : "${lib.makeBinPath runtimeInputs}"
''