refactor: improve nix infrastructure

Author: ratsclub

Diff for: .github/workflows/nix.yml renamed to .github/workflows/nix-build.yml

@@ -1,4 +1,4 @@
-name: Nix
+name: Nix build
 
 on:
   push:
@@ -12,13 +12,11 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v1
+        uses: actions/checkout@v4
 
       - name: Install Nix
-        uses: cachix/install-nix-action@v15
-        with:
-          extra_nix_config: |
-            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
-
+        uses: DeterminateSystems/nix-installer-action@main
+      - name: Install Nix magic cache
+        uses: DeterminateSystems/magic-nix-cache-action@main
       - name: Build
         run: nix build

Diff for: .github/workflows/nix-flake-update.yml

@@ -0,0 +1,23 @@
+name: Update flake.lock
+on:
+  workflow_dispatch: # allows manual triggering
+  schedule:
+    - cron: '0 0 * * 1' # runs weekly on Monday at 00:00
+
+jobs:
+  lockfile:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@main
+      - name: Install Nix magic cache
+        uses: DeterminateSystems/magic-nix-cache-action@main
+      - name: Update flake.lock
+        uses: DeterminateSystems/update-flake-lock@main
+        with:
+          pr-title: "chore: update flake.lock" # Title of PR to be created
+          pr-labels: |                        # Labels to be set on the PR
+            dependencies
+            automated

Diff for: .github/workflows/website-publish.yml

@@ -12,13 +12,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout 🛎️
-        uses: actions/checkout@v2.3.1
+        uses: actions/checkout@v4
 
       - name: Install Nix
-        uses: cachix/install-nix-action@v15
-        with:
-          extra_nix_config: |
-            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+        uses: DeterminateSystems/nix-installer-action@main
+      - name: Install Nix magic cache
+        uses: DeterminateSystems/magic-nix-cache-action@main
 
       - name: Build
         run: nix build .#website

Diff for: flake.lock

@@ -2,65 +2,82 @@
   description = "Plain text Zettelkasten based on mdBook";
 
   inputs = {
-    utils.url = "github:numtide/flake-utils";
-    rust.url = "github:oxalica/rust-overlay";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
   };
 
-  outputs = {
-    self,
-    nixpkgs,
-    utils,
-    rust,
-  }: let
-    pname = "mdzk";
-    version =
-      (builtins.fromTOML (builtins.readFile ./Cargo.toml)).package.version;
-  in
-    {
-      overlays.default = nixpkgs.lib.composeManyExtensions [
-        rust.overlays.default
-        (final: _: {
-          customRustToolchain =
-            final.rust-bin.selectLatestNightlyWith
-            (toolchain:
-              toolchain.default.override {
-                extensions = ["rust-std" "rust-src"];
-              });
+  outputs =
+    { self
+    , nixpkgs
+    }:
+    let
+      forAllSystems = nixpkgs.lib.genAttrs nixpkgs.lib.systems.flakeExposed;
 
-          mdzk = import ./nix/package.nix {
-            inherit pname version;
-            pkgs = final;
-          };
-        })
-      ];
-    }
-    // utils.lib.eachDefaultSystem (system: let
-      pkgs = import nixpkgs {
+      nixpkgsFor = forAllSystems (system: import nixpkgs {
         inherit system;
-        overlays = [self.overlays.default];
+        overlays = [ self.overlays.default ];
+      });
+
+      pname = "mdzk";
+      version =
+        (builtins.fromTOML (builtins.readFile ./Cargo.toml)).package.version;
+    in
+    {
+      overlays.default = final: prev: {
+        mdzk = prev.callPackage ./nix/package.nix { inherit prev pname version; };
       };
 
-      inherit (pkgs) mdzk;
-    in rec {
-      # `nix build .#mdzk`
-      packages.${pname} = mdzk;
+      apps = forAllSystems (system:
+        let
+          pkgs = nixpkgsFor."${system}";
+          app = {
+            type = "app";
+            program = "${pkgs.mdzk}/bin/mdzk";
+          };
+        in
+        {
+          # `nix run`
+          default = app;
+
+          # `nix run .#mdzk`
+          mdzk = app;
+        });
 
-      # `nix build .#website`
-      packages.website = pkgs.callPackage ./nix/website.nix {inherit pkgs;};
+      packages = forAllSystems (system:
+        let
+          pkgs = nixpkgsFor."${system}";
+        in
+        {
+          # `nix build`
+          default = pkgs.mdzk;
 
-      # `nix build`
-      packages.default = packages.${pname};
+          # `nix build .#mdzk`
+          "${pname}" = pkgs.mdzk;
 
-      # `nix run`
-      apps.${pname} = utils.lib.mkApp {drv = packages.${pname};};
-      apps.default = apps.${pname};
+          # `nix build .#website`
+          website = pkgs.callPackage ./nix/website.nix { };
+        });
 
-      # `nix develop`
-      devShells.default = pkgs.mkShell {
-        nativeBuildInputs = with pkgs; [
-          # rust
-          customRustToolchain
-        ];
-      };
-    });
+      formatter = forAllSystems (system:
+        let
+          pkgs = nixpkgsFor."${system}";
+        in
+        # `nix fmt`
+        pkgs.nixpkgs-fmt);
+
+      devShells = forAllSystems (system:
+        let
+          pkgs = nixpkgsFor."${system}";
+
+          inherit (pkgs)
+            mkShell
+            cargo
+            rustc
+            rust-analyzer;
+        in
+        {
+          default = mkShell {
+            buildInputs = [ cargo rust-analyzer rustc ];
+          };
+        });
+    };
 }

Diff for: flake.nix

@@ -1,35 +1,33 @@
-{
-  pkgs,
-  pname,
-  version,
-  ...
-}: let
-  rustPlatform = pkgs.makeRustPlatform {
-    rustc = pkgs.customRustToolchain;
-    cargo = pkgs.customRustToolchain;
-  };
+{ pkgs
+, pname
+, version
+, ...
+}:
+let
+  inherit (pkgs)
+    rustPlatform;
 in
-  rustPlatform.buildRustPackage {
-    inherit pname version;
+rustPlatform.buildRustPackage {
+  inherit pname version;
 
-    src = pkgs.lib.cleanSource ../.;
+  src = pkgs.lib.cleanSource ../.;
 
-    buildInputs =
-      pkgs.lib.optionals pkgs.stdenv.isDarwin
-      [pkgs.darwin.apple_sdk.frameworks.CoreServices];
+  buildInputs =
+    pkgs.lib.optionals pkgs.stdenv.isDarwin
+      [ pkgs.darwin.apple_sdk.frameworks.CoreServices ];
 
-    makeFlags = ["PREFIX=$(out)"];
+  makeFlags = [ "PREFIX=$(out)" ];
 
-    postBuild = ''
-      pandoc --standalone --to man public/man.md -o public/mdzk.1
-    '';
+  postBuild = ''
+    pandoc --standalone --to man public/man.md -o public/mdzk.1
+  '';
 
-    preInstall = ''
-      install -d $out/share/man/man1/
-      install -pm 0644 public/mdzk.1 $out/share/man/man1/
-    '';
+  preInstall = ''
+    install -d $out/share/man/man1/
+    install -pm 0644 public/mdzk.1 $out/share/man/man1/
+  '';
 
-    nativeBuildInputs = with pkgs; [pandoc];
+  nativeBuildInputs = with pkgs; [ pandoc ];
 
-    cargoSha256 = "sha256-2exNoGAj2ndVRu90tCv+CEn3nPSBtcjHzJcPkZKBndA=";
-  }
+  cargoHash = "sha256-2exNoGAj2ndVRu90tCv+CEn3nPSBtcjHzJcPkZKBndA=";
+}