{ description = "Binary blobs with intelligent serialization"; inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable"; inputs.flake-utils.url = "github:numtide/flake-utils"; inputs.flake-compat.url = "github:edolstra/flake-compat"; inputs.flake-compat.flake = false; inputs.rust-overlay.url = "github:oxalica/rust-overlay"; inputs.pre-commit-hooks.url = "github:cachix/pre-commit-hooks.nix"; inputs.pre-commit-hooks.inputs.flake-utils.follows = "flake-utils"; inputs.pre-commit-hooks.inputs.nixpkgs.follows = "nixpkgs"; outputs = { self, nixpkgs, flake-utils, rust-overlay, pre-commit-hooks, ... }: flake-utils.lib.eachDefaultSystem (system: let overlays = [ (import rust-overlay) ]; pkgs = import nixpkgs { inherit system overlays; }; rustToolchain = pkgs.rust-bin.stable.latest.minimal.override { extensions = [ "rustfmt" "clippy" "llvm-tools-preview" "rust-src" ]; }; rustDeps = with pkgs; [ pkg-config openssl bash curl docker cargo-audit cargo-edit cargo-udeps cargo-sort cmake ] ++ lib.optionals stdenv.isDarwin [ darwin.apple_sdk.frameworks.Security darwin.apple_sdk.frameworks.CoreFoundation darwin.apple_sdk.frameworks.SystemConfiguration # https://github.com/NixOS/nixpkgs/issues/126182 libiconv ] ++ lib.optionals (!stdenv.isDarwin) [ cargo-watch # broken: https://github.com/NixOS/nixpkgs/issues/146349 ]; # nixWithFlakes allows pre v2.4 nix installations to use # flake commands (like `nix flake update`) nixWithFlakes = pkgs.writeShellScriptBin "nix" '' exec ${pkgs.nixFlakes}/bin/nix --experimental-features "nix-command flakes" "$@" ''; shellHook = '' # Prevent cargo aliases from using programs in `~/.cargo` to avoid conflicts with rustup # installations. export CARGO_HOME=$HOME/.cargo-nix export PATH="$PWD/$CARGO_TARGET_DIR/release:$PATH" ''; RUST_SRC_PATH = "${rustToolchain}/lib/rustlib/src/rust/library"; RUST_BACKTRACE = 1; RUST_LOG = "info"; # Use a distinct target dir for builds from within nix shells. CARGO_TARGET_DIR = "target/nix"; in { checks = { pre-commit-check = pre-commit-hooks.lib.${system}.run { src = ./.; hooks = { cargo-fmt = { enable = true; description = "Enforce rustfmt"; entry = "cargo fmt --all -- --check"; pass_filenames = false; }; cargo-sort = { enable = true; description = "Ensure Cargo.toml are sorted"; entry = "cargo sort -g -w"; pass_filenames = false; }; cargo-clippy = { enable = true; description = "Run clippy"; entry = "cargo clippy --workspace --all-features --all-targets -- -D clippy::dbg-macro"; pass_filenames = false; }; }; }; }; devShell = pkgs.mkShell { shellHook = shellHook # install pre-commit hooks + self.checks.${system}.pre-commit-check.shellHook; buildInputs = with pkgs; [ rust-bin.nightly.latest.rust-analyzer nixWithFlakes nixpkgs-fmt git rustToolchain ] ++ rustDeps; inherit RUST_SRC_PATH RUST_BACKTRACE RUST_LOG CARGO_TARGET_DIR; }; }); }