{ buildPackages , callPackage , cargo , cargo-nextest , clang , lib , makeSetupHook , maturin , rust , rustc , stdenv , target ? rust.toRustTargetSpec stdenv.hostPlatform }: let targetIsJSON = lib.hasSuffix ".json" target; # see https://github.com/rust-lang/cargo/blob/964a16a28e234a3d397b2a7031d4ab4a428b1391/src/cargo/core/compiler/compile_kind.rs#L151-L168 # the "${}" is needed to transform the path into a /nix/store path before baseNameOf shortTarget = if targetIsJSON then (lib.removeSuffix ".json" (builtins.baseNameOf "${target}")) else target; ccForBuild = "${buildPackages.stdenv.cc}/bin/${buildPackages.stdenv.cc.targetPrefix}cc"; cxxForBuild = "${buildPackages.stdenv.cc}/bin/${buildPackages.stdenv.cc.targetPrefix}c++"; ccForHost = "${stdenv.cc}/bin/${stdenv.cc.targetPrefix}cc"; cxxForHost = "${stdenv.cc}/bin/${stdenv.cc.targetPrefix}c++"; rustBuildPlatform = rust.toRustTarget stdenv.buildPlatform; rustTargetPlatform = rust.toRustTarget stdenv.hostPlatform; rustTargetPlatformSpec = rust.toRustTargetSpec stdenv.hostPlatform; in { cargoBuildHook = callPackage ({ }: makeSetupHook { name = "cargo-build-hook.sh"; deps = [ cargo ]; substitutions = { inherit ccForBuild ccForHost cxxForBuild cxxForHost rustBuildPlatform rustTargetPlatform rustTargetPlatformSpec; }; } ./cargo-build-hook.sh) {}; cargoCheckHook = callPackage ({ }: makeSetupHook { name = "cargo-check-hook.sh"; deps = [ cargo ]; substitutions = { inherit rustTargetPlatformSpec; }; } ./cargo-check-hook.sh) {}; cargoInstallHook = callPackage ({ }: makeSetupHook { name = "cargo-install-hook.sh"; deps = [ ]; substitutions = { inherit shortTarget; }; } ./cargo-install-hook.sh) {}; cargoNextestHook = callPackage ({ }: makeSetupHook { name = "cargo-nextest-hook.sh"; deps = [ cargo cargo-nextest ]; substitutions = { inherit rustTargetPlatformSpec; }; } ./cargo-nextest-hook.sh) {}; cargoSetupHook = callPackage ({ }: makeSetupHook { name = "cargo-setup-hook.sh"; deps = [ ]; substitutions = { defaultConfig = ../fetchcargo-default-config.toml; # Specify the stdenv's `diff` by abspath to ensure that the user's build # inputs do not cause us to find the wrong `diff`. diff = "${lib.getBin buildPackages.diffutils}/bin/diff"; # We want to specify the correct crt-static flag for both # the build and host platforms. This is important when the wanted # value for crt-static does not match the defaults in the rustc target, # like for pkgsMusl or pkgsCross.musl64; Upstream rustc still assumes # that musl = static[1]. # # By default, Cargo doesn't apply RUSTFLAGS when building build.rs # if --target is passed, so the only good way to set crt-static for # build.rs files is to use the unstable -Zhost-config Cargo feature. # This allows us to specify flags that should be passed to rustc # when building for the build platform. We also need to use # -Ztarget-applies-to-host, because using -Zhost-config requires it. # # When doing this, we also have to specify the linker, or cargo # won't pass a -C linker= argument to rustc. This will make rustc # try to use its default value of "cc", which won't be available # when cross-compiling. # # [1]: https://github.com/rust-lang/compiler-team/issues/422 cargoConfig = '' [host] "linker" = "${ccForBuild}" "rustflags" = [ "-C", "target-feature=${if stdenv.buildPlatform.isStatic then "+" else "-"}crt-static" ] [target."${shortTarget}"] "linker" = "${ccForHost}" "rustflags" = [ "-C", "target-feature=${if stdenv.hostPlatform.isStatic then "+" else "-"}crt-static" ] [unstable] host-config = true target-applies-to-host = true ''; }; } ./cargo-setup-hook.sh) {}; maturinBuildHook = callPackage ({ }: makeSetupHook { name = "maturin-build-hook.sh"; deps = [ cargo maturin rustc ]; substitutions = { inherit ccForBuild ccForHost cxxForBuild cxxForHost rustBuildPlatform rustTargetPlatform rustTargetPlatformSpec; }; } ./maturin-build-hook.sh) {}; bindgenHook = callPackage ({}: makeSetupHook { name = "rust-bindgen-hook"; substitutions = { libclang = clang.cc.lib; inherit clang; }; } ./rust-bindgen-hook.sh) {}; }