flake.nix

# 🐻‍❄️🪚 Azalia: Family of crates that implement common Rust code
# Copyright (c) 2024 Noelware, LLC. <team@noelware.org>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# SOFTWARE.
{
  description = "Collection of Rust crates that are used by and built for Noelware's projects";
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    flake-utils.url = "github:numtide/flake-utils";
    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs = {
        nixpkgs.follows = "nixpkgs";
      };
    };

    flake-compat = {
      url = "github:edolstra/flake-compat";
      flake = false;
    };
  };

  outputs = {
    nixpkgs,
    flake-utils,
    rust-overlay,
    ...
  }:
    flake-utils.lib.eachDefaultSystem (system: let
      pkgs = import nixpkgs {
        inherit system;

        overlays = [(import rust-overlay)];
      };

      rust = pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
      rustflags =
        if pkgs.stdenv.isLinux
        then ''-C link-arg=-fuse-ld=mold -C target-cpu=native''
        else "";
    in {
      devShells.default = pkgs.mkShell {
        LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath (with pkgs; [openssl]);
        nativeBuildInputs = with pkgs;
          [pkg-config]
          ++ (lib.optional stdenv.isLinux [mold lldb])
          ++ (lib.optional stdenv.isDarwin [darwin.apple_sdk.frameworks.CoreFoundation]);

        buildInputs = [
          pkgs.cargo-nextest
          pkgs.cargo-machete
          pkgs.cargo-expand
          pkgs.cargo-deny

          pkgs.openssl
          rust
        ];

        shellHook = ''
          export RUSTFLAGS="${rustflags} $RUSTFLAGS"
        '';
      };
    });
}