ripgrep-all/flake.nix

{
  description =
    "ripgrep, but also search in PDFs, E-Books, Office documents, zip, tar.gz, etc.";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs";

    crane = {
      url = "github:ipetkov/crane";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    flake-utils.url = "github:numtide/flake-utils";

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

    advisory-db = {
      url = "github:rustsec/advisory-db";
      flake = false;
    };

    pre-commit-hooks = {
      url = "github:cachix/pre-commit-hooks.nix";
      inputs = {
        nixpkgs.follows = "nixpkgs";
        flake-utils.follows = "flake-utils";
      };
    };
  };

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

        craneLib = crane.lib.${system};
        src = pkgs.lib.cleanSourceWith {
          src = craneLib.path ./.;
          filter = pkgs.lib.cleanSourceFilter;
        };

        nativeBuildInputs = pkgs.lib.optionals pkgs.stdenv.isDarwin [
          # Additional darwin specific inputs can be set here
          pkgs.libiconv
        ];

        runtimeInputs = with pkgs; [ ffmpeg pandoc poppler_utils ripgrep zip ];

        # Build *just* the cargo dependencies, so we can reuse
        # all of that work (e.g. via cachix) when running in CI
        cargoArtifacts =
          craneLib.buildDepsOnly { inherit src nativeBuildInputs; };

        # Build the actual crate itself, reusing the dependency
        # artifacts from above.
        rgaBinary = craneLib.buildPackage {
          inherit cargoArtifacts src nativeBuildInputs;
          buildInputs = runtimeInputs; # needed for tests
        };

        # Provide a shell script of the Rust binary plus runtime dependencies.
        rga = pkgs.pkgs.writeShellApplication {
          name = "rga";
          text = ''rga "$@"'';
          runtimeInputs = runtimeInputs ++ [ rgaBinary ];
        };

        pre-commit = pre-commit-hooks.lib."${system}".run;
      in {
        # `nix flake check`
        checks = {
          # Build the crate as part of `nix flake check` for convenience
          inherit rgaBinary;

          # Run clippy (and deny all warnings) on the crate source,
          # again, resuing the dependency artifacts from above.
          #
          # Note that this is done as a separate derivation so that
          # we can block the CI if there are issues here, but not
          # prevent downstream consumers from building our crate by itself.
          rga-clippy = craneLib.cargoClippy {
            inherit cargoArtifacts src;
            cargoClippyExtraArgs = "--all-targets -- --deny warnings";
          };

          rga-doc = craneLib.cargoDoc { inherit cargoArtifacts src; };

          # Check formatting
          rga-fmt = craneLib.cargoFmt { inherit src; };

          # Audit dependencies
          rga-audit = craneLib.cargoAudit { inherit src advisory-db; };

          # Run tests with cargo-nextest.
          rga-nextest = craneLib.cargoNextest {
            inherit cargoArtifacts src nativeBuildInputs;
            buildInputs = runtimeInputs; # needed for tests
            partitions = 1;
            partitionType = "count";
          };

          pre-commit = pre-commit {
            src = ./.;
            hooks = {
              nixfmt.enable = true;
              rustfmt.enable = true;
              typos.enable = true;
            };
          };
        };

        # `nix build`
        packages = {
          inherit rgaBinary rga;
          default = rga; # `nix build`
        };

        # `nix run`
        apps.default = flake-utils.lib.mkApp { drv = rga; };

        # `nix develop`
        devShells.default = craneLib.devShell {
          inherit (self.checks.${system}.pre-commit) shellHook;
          inputsFrom = builtins.attrValues self.checks;
          packages = runtimeInputs ++ nativeBuildInputs;
        };
      });
}