nixpkgs/pkgs/build-support/rust/default.nix
Kevin Cox 5f8cf0048e rust: update cargo builder to fetch registry dynamically
The biggest benefit is that we no longer have to update the registry
package. This means that just about any cargo package can be built by
nix. No longer does `cargo update` need to be feared because it will
update to packages newer then what is available in nixpkgs.

Instead of fetching the cargo registry this bundles all the source code
into a "vendor/" folder.

This also uses the new --frozen and --locked flags which is nice.

Currently cargo-vendor only provides binaries for Linux and
macOS 64-bit. This can be solved by building it for the other
architectures and uploading it somewhere (like the NixOS cache).

This also has the downside that it requires a change to everyone's deps
hash. And if the old one is used because it was cached it will fail to
build as it will attempt to use the old version. For this reason the
attribute has been renamed to `cargoSha256`.

Authors:
* Kevin Cox <kevincox@kevincox.ca>
* Jörg Thalheim <Mic92@users.noreply.github.com>
* zimbatm <zimbatm@zimbatm.com>
2017-10-23 00:30:47 +01:00

85 lines
1.9 KiB
Nix

{ fetchurl, stdenv, path, cacert, git, rust }:
let
cargoVendor = import ./cargo-vendor.nix {
inherit fetchurl stdenv;
};
fetchcargo = import ./fetchcargo.nix {
inherit stdenv cacert git rust cargoVendor;
};
in
{ name, cargoSha256
, src ? null
, srcs ? null
, sourceRoot ? null
, logLevel ? ""
, buildInputs ? []
, cargoUpdateHook ? ""
, cargoDepsHook ? ""
, cargoBuildFlags ? []
, ... } @ args:
let
lib = stdenv.lib;
cargoDeps = fetchcargo {
inherit name src srcs sourceRoot cargoUpdateHook;
sha256 = cargoSha256;
};
in stdenv.mkDerivation (args // {
inherit cargoDeps;
patchRegistryDeps = ./patch-registry-deps;
buildInputs = [ git rust.cargo rust.rustc ] ++ buildInputs;
configurePhase = args.configurePhase or ''
runHook preConfigure
# noop
runHook postConfigure
'';
postUnpack = ''
eval "$cargoDepsHook"
mkdir .cargo
cat >.cargo/config <<-EOF
[source.crates-io]
registry = 'https://github.com/rust-lang/crates.io-index'
replace-with = 'vendored-sources'
[source.vendored-sources]
directory = '$cargoDeps'
EOF
export RUST_LOG=${logLevel}
export SSL_CERT_FILE=${cacert}/etc/ssl/certs/ca-bundle.crt
'' + (args.postUnpack or "");
buildPhase = with builtins; args.buildPhase or ''
runHook preBuild
echo "Running cargo build --release ${concatStringsSep " " cargoBuildFlags}"
cargo build --release --frozen ${concatStringsSep " " cargoBuildFlags}
runHook postBuild
'';
checkPhase = args.checkPhase or ''
runHook preCheck
echo "Running cargo test"
cargo test
runHook postCheck
'';
doCheck = args.doCheck or true;
installPhase = args.installPhase or ''
runHook preInstall
mkdir -p $out/bin
find target/release -maxdepth 1 -executable -exec cp "{}" $out/bin \;
runHook postInstall
'';
passthru = { inherit cargoDeps; };
})