{
description = "Rust-based parser for nix files";
inputs = {
utils.url = "github:numtide/flake-utils";
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
import-cargo.url = "github:edolstra/import-cargo";
fenix = {
url = "github:nix-community/fenix";
inputs.nixpkgs.follows = "nixpkgs";
};
};
outputs = { self, nixpkgs, utils, import-cargo, fenix }:
{
overlay = final: prev: let
target = final.stdenv.hostPlatform.rust.rustcTarget;
flags = "--release --offline --target ${target}";
inherit (import-cargo.builders) importCargo;
in {
rnix-parser = final.stdenv.mkDerivation {
pname = "rnix-parser";
version = (builtins.fromTOML (builtins.readFile ./Cargo.toml)).package.version;
src = final.lib.cleanSource ./.;
nativeBuildInputs = with final; [
rustc cargo
(importCargo { lockFile = ./Cargo.lock; inherit (final) pkgs; }).cargoHome
];
outputs = [ "out" "doc" ];
doCheck = true;
buildPhase = ''
cargo build ${flags}
cargo doc ${flags}
'';
checkPhase = ''
cargo test ${flags}
cargo bench
'';
installPhase = ''
mkdir -p $out/lib
mkdir -p $doc/share/doc/rnix
cp -r ./target/${target}/doc $doc/share/doc/rnix
cp ./target/${target}/release/librnix.rlib $out/lib/
'';
};
};
}
// utils.lib.eachDefaultSystem (system:
let
pkgs = import nixpkgs { inherit system; overlays = [ self.overlay ]; };
fenixPkgs = fenix.packages.${system};
nightlyToolchain = fenixPkgs.combine [
fenixPkgs.minimal.cargo
fenixPkgs.minimal.rustc
];
in
rec {
# `nix develop`
devShells.default = pkgs.mkShell {
buildInputs = with pkgs; [ rustfmt rustc cargo clippy ];
};
# `nix develop .#fuzz` - for running cargo-fuzz
devShells.fuzz = pkgs.mkShell {
buildInputs = [
nightlyToolchain
pkgs.cargo-fuzz
];
# libFuzzer needs libstdc++
LD_LIBRARY_PATH = "${pkgs.stdenv.cc.cc.lib}/lib";
};
# Backwards compat
devShell = devShells.default;
packages.rnix-parser = pkgs.rnix-parser;
defaultPackage = packages.rnix-parser;
}
);
}