crane/lib/cargoTarpaulin.nix

{ mkCargoDerivation
, cargo-tarpaulin
, lib
}:
let
  xml = if lib.versionOlder cargo-tarpaulin.version "0.27.0" then "Xml" else "xml";
in
{ cargoExtraArgs ? ""
, cargoTarpaulinExtraArgs ? "--skip-clean --out ${xml} --output-dir $out"
, ...
}@origArgs:
let
  args = builtins.removeAttrs origArgs [
    "cargoExtraArgs"
    "cargoTarpaulinExtraArgs"
  ];
in
mkCargoDerivation (args // {
  buildPhaseCargoCommand = "cargoWithProfile tarpaulin ${cargoExtraArgs} ${cargoTarpaulinExtraArgs}";

  pnameSuffix = "-tarpaulin";

  # With `--skip-clean` cargo-tarpaulin tries to mutate dependency files in place
  doNotLinkInheritedArtifacts = args.doNotLinkInheritedArtifacts or true;

  nativeBuildInputs = (args.nativeBuildInputs or [ ]) ++ [ cargo-tarpaulin ];
})