continuwuity/nix/packages/uwulib/build.nix

108 lines
3.1 KiB
Nix

args@{ pkgs, inputs, ... }:
let
inherit (pkgs) lib;
uwuenv = import ./environment.nix args;
selfpkgs = inputs.self.packages.${pkgs.stdenv.system};
in
rec {
# basic, very minimal instance of the crane library with a minimal rust toolchain
craneLib = (inputs.crane.mkLib pkgs).overrideToolchain (_: selfpkgs.build-toolchain);
# the checks require more rust toolchain components, hence we have this separate instance of the crane library
craneLibForChecks = (inputs.crane.mkLib pkgs).overrideToolchain (_: selfpkgs.dev-toolchain);
# meta information (name, version, etc) of the rust crate based on the Cargo.toml
crateInfo = craneLib.crateNameFromCargoToml { cargoToml = "${inputs.self}/Cargo.toml"; };
src =
let
# see https://crane.dev/API.html#cranelibfiltercargosources
#
# we need to keep the `web` directory which would be filtered out by the regular source filtering function
#
# https://crane.dev/API.html#cranelibcleancargosource
isWebTemplate = path: _type: builtins.match ".*src/web.*" path != null;
isRust = craneLib.filterCargoSources;
isNix = path: _type: builtins.match ".+/nix.*" path != null;
webOrRustNotNix = p: t: !(isNix p t) && (isWebTemplate p t || isRust p t);
in
lib.cleanSourceWith {
src = inputs.self;
filter = webOrRustNotNix;
name = "source";
};
# common attrs that are shared between building continuwuity's deps and the package itself
commonAttrs =
{
profile ? "dev",
...
}:
{
inherit (crateInfo)
pname
version
;
inherit src;
# this prevents unnecessary rebuilds
strictDeps = true;
dontStrip = profile == "dev" || profile == "test";
dontPatchELF = profile == "dev" || profile == "test";
doCheck = true;
nativeBuildInputs = [
# bindgen needs the build platform's libclang. Apparently due to "splicing
# weirdness", pkgs.rustPlatform.bindgenHook on its own doesn't quite do the
# right thing here.
pkgs.rustPlatform.bindgenHook
];
};
makeRocksDBEnv =
{ rocksdb }:
{
ROCKSDB_INCLUDE_DIR = "${rocksdb}/include";
ROCKSDB_LIB_DIR = "${rocksdb}/lib";
};
# function that builds the continuwuity dependencies derivation
buildDeps =
{
rocksdb,
features,
commonAttrsArgs,
}:
craneLib.buildDepsOnly (
(commonAttrs commonAttrsArgs)
// {
env = uwuenv.buildDepsOnlyEnv // (makeRocksDBEnv { inherit rocksdb; });
inherit (features) cargoExtraArgs;
}
);
# function that builds the continuwuity package
buildPackage =
{
deps,
rocksdb,
features,
commonAttrsArgs,
}:
let
rocksdbEnv = makeRocksDBEnv { inherit rocksdb; };
in
craneLib.buildPackage (
(commonAttrs commonAttrsArgs)
// {
cargoArtifacts = deps;
doCheck = true;
env = uwuenv.buildPackageEnv // rocksdbEnv;
passthru.env = uwuenv.buildPackageEnv // rocksdbEnv;
meta.mainProgram = crateInfo.pname;
inherit (features) cargoExtraArgs;
}
);
}