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flake.nix
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flake.nix
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{
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;
};
});
}