{
description = "Flakes for Rust development";
inputs = {
# The nixpkgs
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
# Utility functions
flake-utils.url = "github:numtide/flake-utils";
# An nixpkgs overlay for overriding the nixpkgs to get declarative Rust toolchain specification.
rust-overlay.url = "github:oxalica/rust-overlay";
};
outputs = { self, nixpkgs, flake-utils, rust-overlay }:
flake-utils.lib.eachDefaultSystem (system:
let
overlays = [ (import rust-overlay) ];
pkgs = import nixpkgs { inherit system overlays; };
rs-toolchain = pkgs.rust-bin.stable.latest.default.override {
extensions = [ "rust-src" ];
};
in
{
devShells.default = pkgs.mkShell {
buildInputs = [
# Including latest cargo,clippy,cargo-fmt
rs-toolchain
# rust-analyzer comes from nixpkgs toolchain, I want the unwrapped version
pkgs.rust-analyzer-unwrapped
pkgs.cargo-expand
pkgs.openssl
];
# To make rust-analyzer work correctly (The path prefix issue)
RUST_SRC_PATH = "${rs-toolchain}/lib/rustlib/src/rust/library";
};
});
}