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a3f0c63eed
We don't need to nest `cleanCargoSource` and `path` just to populate a default value for `name`. As they both ultimately delegate to `builtins.path`, the nesting can lead to IFD in situations which are otherwise avoidable
1021 B
1021 B
I need to patch Cargo.lock but when I do the build fails
Dependency crates are vendored by reading Cargo.lock at evaluation time and
not at build time. Thus using patches = [ ./patch-which-updates-lockfile.patch ];
may result in a situation where any new crates introduced by the patch cannot be
found by cargo.
It is possible to work around this limitation by patching Cargo.lock in a
stand-alone derivation and passing that result to vendorCargoDeps before
building the rest of the workspace.
let
patchedCargoLock = src = pkgs.stdenv.mkDerivation {
src = ./path/to/Cargo.lock;
patches = [
./update-cargo-lock.patch
];
installPhase = ''
runHook preInstall
mkdir -p $out
cp Cargo.lock $out
runHook postInstall
'';
};
in
craneLib.buildPackage {
cargoVendorDir = craneLib.vendorCargoDeps {
src = patchedCargoLock;
};
src = craneLib.cleanCargoSource ./.;
patches = [
./update-cargo-lock.patch
./some-other.patch
];
}