nixpkgs/pkgs/development/compilers/rust/cargo.nix
Maximilian Bosch 6b23cfe689
rustPlatform: add buildAndTestSubdir-argument
There are several tarballs (such as the `rust-lang/rust`-source) with a
`Cargo.toml` at root and several sub-packages (with their own Cargo.toml)
without using workspaces[1].

In such a case it's needed to move into a subdir to only build the
specified sub-package (e.g. `rustfmt` or `rsl`), however the artifacts
are at `/target` in the root-dir of the build environment. This breaks
the build since `buildRustPackage` searches for executables in `target`
(which is at the build-env's root) at the end of the `buildPhase`.

With the optional `buildAndTestSubdir`-argument, the builder moves into
the specified subdir using `pushd`/`popd` during `buildPhase` and
`checkPhase`.

Also moved the logic to find executables and libs to the end of the `buildPhase`
from a custom `postBuild`-hook to fix packages with custom `build`/`install`-procedures
such as `uutils-coreutils`.

[1] https://doc.rust-lang.org/book/ch14-03-cargo-workspaces.html
2020-05-13 01:47:17 +02:00

60 lines
2.0 KiB
Nix

{ stdenv, file, curl, pkgconfig, python3, openssl, cmake, zlib
, installShellFiles, makeWrapper, libiconv, cacert, rustPlatform, rustc
, CoreFoundation, Security
}:
rustPlatform.buildRustPackage {
name = "cargo-${rustc.version}";
inherit (rustc) version src;
# the rust source tarball already has all the dependencies vendored, no need to fetch them again
cargoVendorDir = "vendor";
buildAndTestSubdir = "src/tools/cargo";
passthru.rustc = rustc;
# changes hash of vendor directory otherwise
dontUpdateAutotoolsGnuConfigScripts = true;
nativeBuildInputs = [ pkgconfig cmake installShellFiles makeWrapper ];
buildInputs = [ cacert file curl python3 openssl zlib ]
++ stdenv.lib.optionals stdenv.isDarwin [ CoreFoundation Security libiconv ];
# cargo uses git-rs which is made for a version of libgit2 from recent master that
# is not compatible with the current version in nixpkgs.
#LIBGIT2_SYS_USE_PKG_CONFIG = 1;
# fixes: the cargo feature `edition` requires a nightly version of Cargo, but this is the `stable` channel
RUSTC_BOOTSTRAP = 1;
postInstall = ''
# NOTE: We override the `http.cainfo` option usually specified in
# `.cargo/config`. This is an issue when users want to specify
# their own certificate chain as environment variables take
# precedence
wrapProgram "$out/bin/cargo" \
--suffix PATH : "${rustc}/bin" \
--set CARGO_HTTP_CAINFO "${cacert}/etc/ssl/certs/ca-bundle.crt" \
--set SSL_CERT_FILE "${cacert}/etc/ssl/certs/ca-bundle.crt"
installManPage src/tools/cargo/src/etc/man/*
'';
checkPhase = ''
# Disable cross compilation tests
export CFG_DISABLE_CROSS_TESTS=1
cargo test
'';
# Disable check phase as there are failures (4 tests fail)
doCheck = false;
meta = with stdenv.lib; {
homepage = "https://crates.io";
description = "Downloads your Rust project's dependencies and builds your project";
maintainers = with maintainers; [ retrry ];
license = [ licenses.mit licenses.asl20 ];
platforms = platforms.unix;
};
}