15e60818c9
`nixos-unstable` is the rolling release channel of NixOS. The default is the master branch, which doesn't always have a populated binary cache and so may result in compiling a bunch of stuff unnecessarily.
93 lines
2.4 KiB
Nix
93 lines
2.4 KiB
Nix
{
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs?ref=nixos-unstable";
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flake-utils.url = "github:numtide/flake-utils";
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fenix = {
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url = "github:nix-community/fenix";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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crane = {
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url = "github:ipetkov/crane";
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inputs.nixpkgs.follows = "nixpkgs";
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inputs.flake-utils.follows = "flake-utils";
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};
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};
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outputs =
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{ self
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, nixpkgs
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, flake-utils
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, fenix
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, crane
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}: flake-utils.lib.eachDefaultSystem (system:
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let
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pkgs = nixpkgs.legacyPackages.${system};
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# Use mold on Linux
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stdenv = if pkgs.stdenv.isLinux then
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pkgs.stdenvAdapters.useMoldLinker pkgs.stdenv
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else
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pkgs.stdenv;
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# Nix-accessible `Cargo.toml`
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cargoToml = builtins.fromTOML (builtins.readFile ./Cargo.toml);
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# The Rust toolchain to use
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toolchain = fenix.packages.${system}.toolchainOf {
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# Use the Rust version defined in `Cargo.toml`
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channel = cargoToml.package.rust-version;
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# THE rust-version HASH
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sha256 = "sha256-8len3i8oTwJSOJZMosGGXHBL5BVuGQnWOT2St5YAUFU=";
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};
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# The system's RocksDB
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ROCKSDB_INCLUDE_DIR = "${pkgs.rocksdb_6_23}/include";
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ROCKSDB_LIB_DIR = "${pkgs.rocksdb_6_23}/lib";
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# Shared between the package and the devShell
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nativeBuildInputs = (with pkgs.rustPlatform; [
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bindgenHook
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]);
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builder =
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((crane.mkLib pkgs).overrideToolchain toolchain.toolchain).buildPackage;
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in
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{
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packages.default = builder {
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src = ./.;
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inherit
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stdenv
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nativeBuildInputs
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ROCKSDB_INCLUDE_DIR
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ROCKSDB_LIB_DIR;
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};
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devShells.default = (pkgs.mkShell.override { inherit stdenv; }) {
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# Rust Analyzer needs to be able to find the path to default crate
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# sources, and it can read this environment variable to do so
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RUST_SRC_PATH = "${toolchain.rust-src}/lib/rustlib/src/rust/library";
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inherit
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ROCKSDB_INCLUDE_DIR
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ROCKSDB_LIB_DIR;
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# Development tools
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nativeBuildInputs = nativeBuildInputs ++ (with toolchain; [
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cargo
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clippy
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rust-src
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rustc
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rustfmt
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]);
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};
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checks = {
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packagesDefault = self.packages.${system}.default;
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devShellsDefault = self.devShells.${system}.default;
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};
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});
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}
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