candy/flake.nix at main · candy-lang/candy · GitHub

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{
  description = "Development environment for working on the Candy compiler";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, flake-utils, rust-overlay }:
    let
      overlays = [
        rust-overlay.overlays.default
        (final: prev: {
          rustToolchain =
            prev.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
        })
      ];
    in flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs {
          inherit overlays system;
          config = { };
        };
      in {
        devShell = with pkgs;
          mkShell {
            LLVM_SYS_150_PREFIX = "${pkgs.llvmPackages_15.llvm.dev}";
            RUST_BACKTRACE = "1";
            RUSTC_WRAPPER = "sccache";
            RUSTFLAGS = "-C link-arg=-fuse-ld=mold";
            buildInputs = [
              cargo-insta
              gcc13
              hyperfine
              libffi
              libsForQt5.kcachegrind
              llvmPackages_15.bintools
              llvmPackages_15.clangUseLLVM
              llvmPackages_15.llvm
              mold
              nodejs_18
              nodePackages.typescript
              rustToolchain
              rust-analyzer
              sccache
              valgrind
              vsce
            ];
          };
      });
}