untangle 0.1.0

Module-level dependency graph analyzer for Python, Ruby, Go, and Rust
{
  description = "untangle - module-level dependency graph analyzer";

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

  outputs = { self, nixpkgs, rust-overlay, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        overlays = [ (import rust-overlay) ];
        pkgs = import nixpkgs { inherit system overlays; };

        rustToolchain = pkgs.rust-bin.stable.latest.default.override {
          extensions = [ "clippy" "rustfmt" "rust-src" ];
        };
      in
      {
        devShells.default = pkgs.mkShell {
          buildInputs = [
            rustToolchain

            # Native build dependencies
            pkgs.pkg-config
            pkgs.cmake
            pkgs.openssl
            pkgs.libgit2

            # Cargo dev tools
            pkgs.cargo-nextest
            pkgs.cargo-deny
            pkgs.cargo-llvm-cov
            pkgs.cargo-mutants
            pkgs.cargo-insta

            # Documentation
            pkgs.mdbook
          ];

          env = {
            LIBGIT2_NO_VENDOR = "1";
            OPENSSL_DIR = "${pkgs.openssl.dev}";
            OPENSSL_LIB_DIR = "${pkgs.openssl.out}/lib";
            OPENSSL_INCLUDE_DIR = "${pkgs.openssl.dev}/include";
          };
        };
      }
    );
}