chore: switch to crate2nix

Author: Lymah123

flake-parts/crate2nix.nix

@@ -0,0 +1,10 @@
+{ inputs, ... }:
+{
+  perSystem = _: {
+    nixpkgs.overlays = [
+      (_: prev: {
+        crate2nixTools = prev.callPackage "${inputs.crate2nix}/tools.nix" { };
+      })
+    ];
+  };
+}

flake-parts/rust.nix

@@ -1,11 +1,14 @@
+{ ... }:
 {
   gitignore = [ "/target" ];
   perSystem =
     { pkgs, ... }:
     {
       make-shells.default = {
-        inputsFrom = [ pkgs.statix ];
         packages = [
+          pkgs.cargo
+          pkgs.rustc
+          pkgs.clippy
           pkgs.bacon
           pkgs.cargo-insta
           pkgs.rust-analyzer

flake-parts/statix.nix

@@ -1,8 +1,31 @@
+{
+  root,
+  ...
+}:
 {
   perSystem =
     { pkgs, ... }:
+    let
+      statixBuild = pkgs.statix-workspace.workspaceMembers.statix.build;
+    in
     {
       treefmt.settings.global.excludes = [ "bin/tests/data/*.nix" ];
-      checks.build = pkgs.statix;
+      checks = {
+        inherit (pkgs) statix;
+        statix-tests = statixBuild.override {
+          runTests = true;
+          testPreRun = ''
+            export INSTA_SNAPSHOT_DIR=${root}/bin/tests/snapshots
+          '';
+        };
+        clippy = statixBuild.override {
+          crateOverrides = pkgs.defaultCrateOverrides // {
+            statix = _: {
+              useClippy = true;
+              RUSTFLAGS = "-D warnings";
+            };
+          };
+        };
+      };
     };
 }

flake.lock

@@ -1,7 +1,6 @@
 {
   nixConfig = {
     abort-on-warn = true;
-    allow-import-from-derivation = false;
   };
 
   inputs = {
@@ -10,6 +9,10 @@
       inputs.nixpkgs-lib.follows = "nixpkgs";
     };
 
+    crate2nix = {
+      url = "github:nix-community/crate2nix";
+      flake = false;
+    };
     import-tree = {
       url = "github:denful/import-tree";
       flake = false;

flake.nix

@@ -1,4 +1,6 @@
 final: prev: {
+  statix-cargo-nix = prev.callPackage ./packages/cargo-nix.nix { };
   statix = prev.callPackage ./packages/statix.nix { };
+  statix-workspace = prev.callPackage ./packages/statix-workspace.nix { };
   statix-vim = prev.callPackage ./packages/statix-vim.nix { };
 }

overlay.nix

@@ -0,0 +1,22 @@
+{
+  lib,
+  crate2nixTools,
+}:
+crate2nixTools.generatedCargoNix {
+  name = "statix";
+  src = lib.fileset.toSource {
+    root = ../.;
+    fileset = lib.fileset.unions [
+      (lib.fileset.fileFilter (
+        file:
+        lib.any lib.id [
+          (file.name == "Cargo.toml")
+          (file.hasExt "rs")
+          (file.hasExt "snap")
+        ]
+      ) ../.)
+      ../Cargo.lock
+      ../insta.yaml
+    ];
+  };
+}

packages/cargo-nix.nix

@@ -0,0 +1,5 @@
+{
+  callPackage,
+  statix-cargo-nix,
+}:
+callPackage statix-cargo-nix { }

packages/statix-workspace.nix

@@ -1,44 +1,13 @@
 {
-  rustPlatform,
   lib,
-  clippy,
+  callPackage,
+  statix-cargo-nix,
 }:
-rustPlatform.buildRustPackage {
-  pname = "statix";
-  version = "0.6.0-git";
-  src = lib.fileset.toSource {
-    root = ../.;
-    fileset = lib.fileset.unions [
-      (lib.fileset.fileFilter (
-        file:
-        lib.any lib.id [
-          (file.name == "Cargo.toml")
-          (file.hasExt "rs")
-          (file.hasExt "snap")
-        ]
-      ) ../.)
-      ../Cargo.lock
-      ../insta.yaml
-    ];
-  };
-  RUSTFLAGS = "-D warnings";
-
-  nativeBuildInputs = [ clippy ];
-
-  checkPhase = ''
-    runHook preCheck
-
-    cargo clippy --all-targets --all-features
-    cargoCheckHook
-
-    runHook postCheck
-  '';
-
-  cargoLock.lockFile = ../Cargo.lock;
+(callPackage statix-cargo-nix { }).workspaceMembers.statix.build.overrideAttrs (_: {
   meta = {
     mainProgram = "statix";
     description = "Lints and suggestions for the Nix programming language";
     homepage = "https://github.com/molybdenumsoftware/statix";
     license = lib.licenses.mit;
   };
-}
+})