move to a flake

default.nix

@@ -1,54 +0,0 @@
-{ ... }:
-let
-  sources = import ./nix/sources.nix;
-  pkgs = import sources.nixpkgs { };
-  gitignore = import sources.gitignore { };
-in pkgs.stdenv.mkDerivation {
-  name = "bytes.zone";
-  src = gitignore.gitignoreSource ./.;
-
-  buildInputs = [
-    pkgs.zola
-    pkgs.nodePackages.html-minifier
-    pkgs.nodePackages.clean-css-cli
-    pkgs.nodePackages.uglify-js
-    pkgs.pngcrush
-  ];
-  buildPhase = ''
-    zola build
-
-    echo "compressing CSS"
-    find public \
-      -type f -name '*.css' \
-      -exec cleancss -O 1 -o {}.min {} \; \
-      -exec mv {}.min {} \;
-
-    echo "compressing JS"
-    find public \
-      -type f -name '*.js' \
-      -exec uglifyjs -o {}.min {} \; \
-      -exec mv {}.min {} \;
-
-    echo "compressing HTML"
-    html-minifier \
-      --collapse-whitespace \
-      --decode-entities \
-      --remove-comments \
-      --remove-attribute-quotes \
-      --remove-redundant-attributes \
-      --remove-optional-tags \
-      --remove-script-type-attributes \
-      --remove-style-link-type-attributes \
-      --file-ext html \
-      --input-dir public \
-      --output-dir public
-
-    echo "compressing images"
-    find public -type f -name '*.png' | xargs -n 1 pngcrush -ow -brute
-  '';
-
-  installPhase = ''
-    mkdir -p $out/share
-    mv public $out/share/bytes.zone
-  '';
-}

flake.lock

@@ -0,0 +1,43 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1631561581,
+        "narHash": "sha256-3VQMV5zvxaVLvqqUrNz3iJelLw30mIVSfZmAaauM3dA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "7e5bf3925f6fbdfaf50a2a7ca0be2879c4261d19",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1631562492,
+        "narHash": "sha256-RMXh3Ol04TOdes/gl8GI0Q+8PH7kEeXbHzL0e957/Vc=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "f789739acc4baf042c85f2f7382f4b0af5c5e049",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "release-21.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,69 @@
+{
+  description = "bytes.zone website";
+
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+    nixpkgs.url = "github:NixOS/nixpkgs/release-21.05";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let pkgs = nixpkgs.legacyPackages.${system};
+      in rec {
+        # `nix build`
+        packages.bytes-zone = pkgs.stdenv.mkDerivation {
+          name = "bytes.zone";
+          src = ./.;
+
+          buildInputs = [
+            pkgs.zola
+            pkgs.nodePackages.html-minifier
+            pkgs.nodePackages.clean-css-cli
+            pkgs.nodePackages.uglify-js
+            pkgs.pngcrush
+          ];
+          buildPhase = ''
+            zola build
+
+            echo "compressing CSS"
+            find public \
+              -type f -name '*.css' \
+              -exec cleancss -O 1 -o {}.min {} \; \
+              -exec mv {}.min {} \;
+
+            echo "compressing JS"
+            find public \
+              -type f -name '*.js' \
+              -exec uglifyjs -o {}.min {} \; \
+              -exec mv {}.min {} \;
+
+            echo "compressing HTML"
+            html-minifier \
+              --collapse-whitespace \
+              --decode-entities \
+              --remove-comments \
+              --remove-attribute-quotes \
+              --remove-redundant-attributes \
+              --remove-optional-tags \
+              --remove-script-type-attributes \
+              --remove-style-link-type-attributes \
+              --file-ext html \
+              --input-dir public \
+              --output-dir public
+
+            echo "compressing images"
+            find public -type f -name '*.png' | xargs -n 1 pngcrush -ow -brute
+          '';
+
+          installPhase = ''
+            mkdir -p $out/share
+            mv public $out/share/bytes.zone
+          '';
+        };
+        defaultPackage = packages.bytes-zone;
+        overlay = final: prev: { bytes-zone = packages.bytes-zone; };
+
+        # `nix develop`
+        devShell = pkgs.mkShell { buildInputs = with pkgs; [ zola pngcrush ]; };
+      });
+}

shell.nix

@@ -1,11 +1,5 @@
-{ ... }:
-let
-  sources = import ./nix/sources.nix;
-  nixpkgs = import sources.nixpkgs { };
-  niv = import sources.niv { };
-  pa11y = import ./nix/pkgs/pa11y { pkgs = nixpkgs; };
-in with nixpkgs;
-stdenv.mkDerivation {
-  name = "bytes.zone";
-  buildInputs = [ niv.niv git zola pa11y.pa11y pngcrush ];
-}
+(import (fetchTarball {
+  url =
+    "https://github.com/edolstra/flake-compat/archive/12c64ca55c1014cdc1b16ed5a804aa8576601ff2.tar.gz";
+  sha256 = "0jm6nzb83wa6ai17ly9fzpqc40wg1viib8klq8lby54agpl213w5";
+}) { src = ./.; }).shellNix