{
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
rust-overlay.url = "github:oxalica/rust-overlay";
flake-utils.url = "github:numtide/flake-utils";
};
outputs = { nixpkgs, rust-overlay, flake-utils, ... }:
flake-utils.lib.eachDefaultSystem (system:
let
overlays = [ (import rust-overlay) ];
pkgs = import nixpkgs { inherit system overlays; };
manifest = pkgs.lib.importTOML ./Cargo.toml;
in with pkgs; {
devShells.default = mkShell {
nativeBuildInputs = [
# override rustfmt with nightly toolchain version to support unstable features
# ideally this wouldn't be pinned to a specific nightly version but
# selectLatestNightlyWith isn't support with mixed toolchains
# https://github.com/oxalica/rust-overlay/issues/136
(lib.hiPrio rust-bin.nightly."2025-10-16".rustfmt)
# (rust-bin.stable.latest.override { extensions = [ "rust-analyzer" ]; })
rust-bin.stable.latest.default
];
buildInputs = [
pkg-config # required by git2
gitlint
openssl
];
shellHook = ''
# auto-install git hooks
dot_git="$(git rev-parse --git-common-dir)"
if [[ ! -d "$dot_git/hooks" ]]; then mkdir "$dot_git/hooks"; fi
for hook in git_hooks/* ; do ln -sf "$(pwd)/$hook" "$dot_git/hooks/" ; done
# For rust-analyzer 'hover' tooltips to work.
export RUST_SRC_PATH=${pkgs.rustPlatform.rustLibSrc}
'';
};
# Create packages for each binary defined in Cargo.toml
packages.default = pkgs.rustPlatform.buildRustPackage {
pname = manifest.package.name;
version = manifest.package.version;
src = ./.;
cargoLock = {
lockFile = ./Cargo.lock;
outputHashes = {
"rexpect-0.5.0" =
"0amxyp81r90gfqlx5dnfjsmd403kf5hcw0crzpcmsbaviavxff4y";
"simple-websockets-0.1.6" =
"0910bbl7p3by18w3wks8gbgdg8879hn2c39z1bkr5pcvfkcxmaf3";
};
};
buildInputs = [
pkg-config # required by git2
openssl
];
nativeBuildInputs = [
pkg-config # required by git2
openssl
];
doCheck = false;
};
# Create a tarball for the built package
packages.tarball = stdenv.mkDerivation {
name =
"${manifest.package.name}-${manifest.package.version}-${system}.tar.gz";
buildInputs = [ coreutils ];
buildPhase = ''
tar -czf $out/${manifest.package.name}-${manifest.package.version}-${system}.tar.gz -C $out .
'';
};
});
}