{ lib, stdenv, cacert, git, cargo, python3, }: let cargo-vendor-normalise = stdenv.mkDerivation { name = "cargo-vendor-normalise"; src = ./cargo-vendor-normalise.py; nativeBuildInputs = [ python3.pkgs.wrapPython ]; dontUnpack = true; installPhase = "install -D $src $out/bin/cargo-vendor-normalise"; pythonPath = [ python3.pkgs.toml ]; postFixup = "wrapPythonPrograms"; doInstallCheck = true; installCheckPhase = '' # check that ../fetchcargo-default-config.toml is a fix point reference=${../fetchcargo-default-config.toml} < $reference $out/bin/cargo-vendor-normalise > test; cmp test $reference ''; preferLocalBuild = true; }; in { name ? "cargo-deps", src ? null, srcs ? [ ], patches ? [ ], sourceRoot ? "", cargoUpdateHook ? "", nativeBuildInputs ? [ ], ... }@args: let hash_ = if args ? hash then { outputHashAlgo = if args.hash == "" then "sha256" else null; outputHash = args.hash; } else if args ? sha256 then { outputHashAlgo = "sha256"; outputHash = args.sha256; } else throw "fetchCargoTarball requires a hash for ${name}"; in stdenv.mkDerivation ( { name = "${name}-vendor.tar.gz"; nativeBuildInputs = [ cacert git cargo-vendor-normalise cargo ] ++ nativeBuildInputs; buildPhase = '' runHook preBuild # Ensure deterministic Cargo vendor builds export SOURCE_DATE_EPOCH=1 if [[ ! -f Cargo.lock ]]; then echo echo "ERROR: The Cargo.lock file doesn't exist" echo echo "Cargo.lock is needed to make sure that cargoHash/cargoSha256 doesn't change" echo "when the registry is updated." echo exit 1 fi # Keep the original around for copyLockfile cp Cargo.lock Cargo.lock.orig export CARGO_HOME=$(mktemp -d cargo-home.XXX) CARGO_CONFIG=$(mktemp cargo-config.XXXX) if [[ -n "$NIX_CRATES_INDEX" ]]; then cat >$CARGO_HOME/config.toml < $CARGO_CONFIG # Create an empty vendor directory when there is no dependency to vendor mkdir -p $name # Add the Cargo.lock to allow hash invalidation cp Cargo.lock.orig $name/Cargo.lock # Packages with git dependencies generate non-default cargo configs, so # always install it rather than trying to write a standard default template. install -D $CARGO_CONFIG $name/.cargo/config; runHook postBuild ''; # Build a reproducible tar, per instructions at https://reproducible-builds.org/docs/archives/ installPhase = '' tar --owner=0 --group=0 --numeric-owner --format=gnu \ --sort=name --mtime="@$SOURCE_DATE_EPOCH" \ -czf $out $name ''; inherit (hash_) outputHashAlgo outputHash; impureEnvVars = lib.fetchers.proxyImpureEnvVars ++ [ "NIX_CRATES_INDEX" ]; } // (builtins.removeAttrs args [ "name" "sha256" "cargoUpdateHook" "nativeBuildInputs" ]) )