From c8a66c643afe2d0a2da55eac537b13a466c242c2 Mon Sep 17 00:00:00 2001
From: tzlil <tzlils@protonmail.com>
Date: Tue, 21 Mar 2023 12:56:39 +0200
Subject: reading section names

---
 flake.nix | 91 ++++++++++++++++++++++++++-------------------------------------
 1 file changed, 37 insertions(+), 54 deletions(-)

(limited to 'flake.nix')

diff --git a/flake.nix b/flake.nix
index fafb6ca..b8230de 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,64 +1,47 @@
-
 {
-  # XXX: Change project description
-  description = "Rust project";
-
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-21.11";
-    fenix = {
-      url = "github:nix-community/fenix";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-    flake-utils.url = "github:numtide/flake-utils";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    flake-parts = { url = "github:hercules-ci/flake-parts"; inputs.nixpkgs-lib.follows = "nixpkgs"; };
+    treefmt-nix.url = "github:numtide/treefmt-nix";
   };
 
-  outputs = { self, nixpkgs, fenix, flake-utils }:
-    flake-utils.lib.eachDefaultSystem
-      (system:
-        let
-          pkgs = nixpkgs.legacyPackages."${system}";
+  outputs = inputs:
+    inputs.flake-parts.lib.mkFlake { inherit inputs; } {
+      systems = [ "x86_64-linux" ];
+      imports = [ inputs.treefmt-nix.flakeModule ];
 
-          # XXX: Change target platform
-          rust-target = "x86_64-unknown-linux-gnu";
-          rust-toolchain = with fenix.packages."${system}"; let
-            rust-toolchain-spec = {
-              # XXX: Change compiler version
-              # see `toolchainOf` https://github.com/nix-community/fenix
-              # for supported options
-              channel = "nightly";
-              sha256 = "sha256-xdqN1O2O9GJ+Jg/Gsdj2Hra1KFQIQpAu4vGczSBsLDo=";
-            };
-            # Toolchain for the builder
-            host-toolchain = toolchainOf rust-toolchain-spec;
-            # Toolchain for the platform where the binary will run
-            # target-toolchain = targets."${rust-target}".toolchainOf rust-toolchain-spec;
-          in
-          combine [
-            # Build tools are taken from the host
-            host-toolchain.rustc
-            host-toolchain.cargo
-            host-toolchain.clippy
-            host-toolchain.rust-docs
-            # Standard library is taken from the target
-            host-toolchain.rust-std
-            host-toolchain.rust-src
-          ];
+      perSystem = { pkgs, lib, config, ... }:
+        let
+          src = lib.sourceFilesBySuffices inputs.self [ ".rs" ".toml" "Cargo.lock" ];
+          inherit (lib.importTOML (src + "/Cargo.toml")) package;
         in
         {
-          devShells.default = pkgs.mkShell {
-            # XXX: Change to project name
-            name = "rust-project";
+          packages = {
+            ${package.name} = pkgs.rustPlatform.buildRustPackage {
+              pname = package.name;
+              inherit (package) version;
+              inherit src;
+              cargoLock.lockFile = (src + "/Cargo.lock");
+            };
+            default = config.packages.${package.name};
+          };
 
-            # Build tools
-            nativeBuildInputs = with pkgs; [
-              rust-toolchain
-              rust-analyzer
-              rustfmt
-            ];
+          devShells = {
+            ${package.name} = pkgs.mkShell {
+              inherit (package) name;
+              inputsFrom = [ config.packages.${package.name} ];
+              packages = with pkgs; [
+                rust-analyzer
+              ];
+            };
+            default = config.devShells.${package.name};
+          };
 
-            RUST_BACKTRACE = 1;
-            # CARGO_BUILD_TARGET = rust-target;
+          treefmt = {
+            projectRootFile = "flake.nix";
+            programs.nixpkgs-fmt.enable = true;
+            programs.rustfmt.enable = true;
           };
-          devShell = self.devShells."${system}".default;
-        });
-}
\ No newline at end of file
+        };
+    };
+}
-- 
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