ditch crate2nix, use fenix instead of oxalica/rust-overlay

flake.lock

@@ -1,43 +1,47 @@
 {
   "nodes": {
-    "crate2nix": {
+    "fenix": {
-      "flake": false,
+      "inputs": {
+        "nixpkgs": "nixpkgs",
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
       "locked": {
-        "lastModified": 1668031227,
+        "lastModified": 1670566996,
-        "narHash": "sha256-WSiooiJ2gtQGkZE0JBJkkqVz5wi3SETwygU4NuBHdgw=",
+        "narHash": "sha256-M+KsSE2D8ByDf3HZhnvLRpytg8aXScoWhg+NrdHjeeE=",
-        "owner": "kolloch",
+        "owner": "nix-community",
-        "repo": "crate2nix",
+        "repo": "fenix",
-        "rev": "ad27c9f88eca7fcbaaa25194d51787715041ec30",
+        "rev": "ab24d0ad17a733624b99f5d6466e71b8c239a001",
         "type": "github"
       },
       "original": {
-        "owner": "kolloch",
+        "owner": "nix-community",
-        "repo": "crate2nix",
+        "repo": "fenix",
-        "type": "github"
-      }
-    },
-    "flake-utils": {
-      "locked": {
-        "lastModified": 1659877975,
-        "narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
         "type": "github"
       }
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1667991831,
+        "lastModified": 1670332253,
-        "narHash": "sha256-DHgEsLZI044B9T4AjA3K6+yB9/DqLr4dyA7OIx0FG7o=",
+        "narHash": "sha256-O5SmhlIUt1s+vK4NXeGYqwcBIMwbBPAEZ3GHE3XT28c=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "1c9ffcf70786f0966982ce0fc76ec05df2e1dec2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1670507980,
+        "narHash": "sha256-riNZa0xzM1it3pzxciwALeMs+0CsBMWIW2FqulzK8vM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "872fceeed60ae6b7766cc0a4cd5bf5901b9098ec",
+        "rev": "2787fc7d1e51404678614bf0fe92fc296746eec0",
         "type": "github"
       },
       "original": {
@@ -47,46 +51,27 @@
         "type": "github"
       }
     },
-    "nixpkgs_2": {
-      "locked": {
-        "lastModified": 1665296151,
-        "narHash": "sha256-uOB0oxqxN9K7XGF1hcnY+PQnlQJ+3bP2vCn/+Ru/bbc=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "14ccaaedd95a488dd7ae142757884d8e125b3363",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
-        "crate2nix": "crate2nix",
+        "fenix": "fenix",
-        "nixpkgs": "nixpkgs",
+        "nixpkgs": "nixpkgs_2",
-        "rust-overlay": "rust-overlay",
         "utils": "utils"
       }
     },
-    "rust-overlay": {
+    "rust-analyzer-src": {
-      "inputs": {
+      "flake": false,
-        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs_2"
-      },
       "locked": {
-        "lastModified": 1668048396,
+        "lastModified": 1670426523,
-        "narHash": "sha256-SUWQlSa/H5XKPeuF9XmWzmwIJrgK42Lak6/1jBAwyd0=",
+        "narHash": "sha256-Zh+pAuj4PmBmISXCz+54yVSwSXZwbn+ZELgM85xVUE0=",
-        "owner": "oxalica",
+        "owner": "rust-lang",
-        "repo": "rust-overlay",
+        "repo": "rust-analyzer",
-        "rev": "859fefb532bb957f51a9b5e8e3ba2e48394c9353",
+        "rev": "6e8a54d0f68702cf7981c8299357838eb0f4d5b2",
         "type": "github"
       },
       "original": {
-        "owner": "oxalica",
+        "owner": "rust-lang",
-        "repo": "rust-overlay",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
         "type": "github"
       }
     },

flake.nix

@@ -4,14 +4,10 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     utils.url = "github:numtide/flake-utils";
-    rust-overlay.url = "github:oxalica/rust-overlay";
+    fenix.url = "github:nix-community/fenix";
-    crate2nix = {
-      url = "github:kolloch/crate2nix";
-      flake = false;
-    };
   };
 
-  outputs = { self, nixpkgs, utils, rust-overlay, crate2nix }: let
+  outputs = { self, nixpkgs, utils, fenix }: let
     name = "transbeam";
   in
     utils.lib.eachDefaultSystem
@@ -19,22 +15,13 @@
         let
           pkgs = import nixpkgs {
             inherit system;
-            overlays = [
+            overlays = [ fenix.overlays.default ];
-              rust-overlay.overlays.default
+          };
-              (final: prev: {
+          fenixStable = fenix.packages.${system}.stable;
-                rustc = final.rust-bin.stable.latest.default;
+          fenixPlatform = pkgs.makeRustPlatform {
-                cargo = final.rust-bin.stable.latest.default;
+            cargo = fenixStable.toolchain;
-              })
+            rustc = fenixStable.toolchain;
-            ];
           };
-          inherit (import "${crate2nix}/tools.nix" { inherit pkgs; })
-            generatedCargoNix;
-          project = import
-            (generatedCargoNix {
-              inherit name;
-              src = ./.;
-            })
-            { inherit pkgs; };
         in rec {
           packages.${name} = pkgs.symlinkJoin {
             inherit name;
@@ -49,7 +36,14 @@
 
           defaultPackage = packages.${name};
 
-          packages."${name}-unwrapped" = project.rootCrate.build;
+          packages."${name}-unwrapped" = let
+            cargoTOML = builtins.fromTOML (builtins.readFile ./Cargo.toml);
+          in fenixPlatform.buildRustPackage {
+            pname = name;
+            inherit (cargoTOML.package) version;
+            src = ./.;
+            cargoLock.lockFile = ./Cargo.lock;
+          };
 
           packages."${name}-cli" = with pkgs.python3Packages; buildPythonApplication {
             pname = "${name}-cli";
@@ -61,11 +55,18 @@
             src = ./cli;
           };
 
-          devShell = pkgs.mkShell {
+          devShell = with pkgs; let
-            nativeBuildInputs = with pkgs; [
+            fenixWith = fenixStable.withComponents [
+              "cargo"
+              "clippy"
+              "rust-src"
+              "rustc"
+              "rustfmt"
+            ];
+          in mkShell {
+            nativeBuildInputs = [
               stdenv.cc
-              rustc
+              fenixWith
-              cargo
               cargo-audit
               cargo-flamegraph
               (python3.withPackages (p: with p; [
@@ -73,7 +74,6 @@
                 websockets
               ]))
             ];
-            RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
           };
         }
       );