flake.nix: modernize

flake.lock

@@ -1,5 +1,26 @@
 {
   "nodes": {
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1714285404,
+        "narHash": "sha256-MmoQIO+KRiH3UnH0myAp2Fgi84rmpROMfw9VIbqrjHA=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "94be183087845937b0fd77281c37d0796572b899",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1707546158,
@@ -18,8 +39,26 @@
     },
     "root": {
       "inputs": {
+        "fenix": "fenix",
         "nixpkgs": "nixpkgs"
       }
+    },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1714217560,
+        "narHash": "sha256-zttBYGaoHpZfqWHQ8OI5f9OkGHCHb8tDBMySwsYNa2U=",
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "f216be4a0746142c5f30835b254871256a7637b8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rust-lang",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
+        "type": "github"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -1,28 +1,94 @@
+# {
+#   inputs = {
+#     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+#   };
+
+#   outputs = { self, nixpkgs }: let
+#       supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+#       forAllSystems = f: nixpkgs.lib.genAttrs supportedSystems (system: f system nixpkgs.legacyPackages.${system});
+#   in {
+#     devShells = forAllSystems (system: pkgs: {
+#       default = let
+#         rustPlatform = pkgs.rust.packages.stable.rustPlatform;
+#       in pkgs.mkShell {
+#         packages = with pkgs; [
+#           cargo
+#           clippy
+#           rust-analyzer
+#           rustc
+#           rustfmt
+#         ];
+#         RUST_SRC_PATH = "${rustPlatform.rustLibSrc}";
+#       };
+#     });
+
+#     packages = (forAllSystems (system: pkgs: {
+#       default = pkgs.rustPlatform.buildRustPackage rec {
+#         pname = "polyglot-zip";
+#         version = (pkgs.lib.importTOML ./Cargo.toml).package.version;
+#         src = ./.;
+
+#         cargoSha256 = "sha256-3oHEH6DlooWg0sQ+oIvsYoU6FAs7gP9PRwv1xJjGDYA=";
+
+#         meta = with pkgs.lib; {
+#           description = "A tool to convert and extract zip files with non-UTF-8 contents";
+#           homepage = "https://github.com/h7x4/polyglot-zip";
+#           license = licenses.mit;
+#           platforms = supportedSystems;
+#         };
+#       };
+#     }));
+#   };
+# }
+
 {
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    fenix.url = "github:nix-community/fenix";
+    fenix.inputs.nixpkgs.follows = "nixpkgs";
   };
 
-  outputs = { self, nixpkgs }: let
+  outputs = { self, nixpkgs, fenix }@inputs:
-      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+  let 
-      forAllSystems = f: nixpkgs.lib.genAttrs supportedSystems (system: f system nixpkgs.legacyPackages.${system});
+    systems = [
-  in {
+      "x86_64-linux"
-    devShells = forAllSystems (system: pkgs: {
+      "aarch64-linux"
-      default = let
+      "x86_64-darwin"
-        rustPlatform = pkgs.rust.packages.stable.rustPlatform;
+      "aarch64-darwin"
-      in pkgs.mkShell {
+    ];
-        packages = with pkgs; [
+    forAllSystems = f: nixpkgs.lib.genAttrs systems (system: let
-          cargo
+      toolchain = fenix.packages.${system}.complete;
-          clippy
+      pkgs = import nixpkgs {
-          rust-analyzer
+        inherit system;
-          rustc
+        overlays = [
-          rustfmt
+          (_: super: let pkgs = fenix.inputs.nixpkgs.legacyPackages.${system}; in fenix.overlays.default pkgs pkgs)
         ];
-        RUST_SRC_PATH = "${rustPlatform.rustLibSrc}";
       };
+    in f system pkgs toolchain);
+  in {
+    apps = forAllSystems (system: pkgs: _: let
+      mkApp = program: {
+        type = "app";
+        program = "${nixpkgs.lib.getExe program}";
+      };
+    in {
+      default = mkApp self.packages.${system}.default;
     });
 
-    packages = (forAllSystems (system: pkgs: {
+    devShell = forAllSystems (system: pkgs: toolchain: pkgs.mkShell {
+      packages = [
+        (toolchain.withComponents [
+          "cargo" "rustc" "rustfmt" "clippy"
+        ])
+        pkgs.openssl
+        pkgs.pkg-config
+      ];
+      RUST_SRC_PATH = "${toolchain.rust-src}/lib/rustlib/src/rust/";
+    });
+
+    overlays.default = final: prev: self.packages.${final.system};
+    
+    packages = (forAllSystems (system: pkgs: _: {
       default = pkgs.rustPlatform.buildRustPackage rec {
         pname = "polyglot-zip";
         version = (pkgs.lib.importTOML ./Cargo.toml).package.version;
@@ -34,7 +100,8 @@
           description = "A tool to convert and extract zip files with non-UTF-8 contents";
           homepage = "https://github.com/h7x4/polyglot-zip";
           license = licenses.mit;
-          platforms = supportedSystems;
+          platforms = systems;
+          mainProgram = "polyzip";
         };
       };
     }));