docs: refactor, move out of flake.nix

also filter source to limit rebuilds

.github/workflows/pages.yml

@@ -31,7 +31,7 @@ jobs:
         uses: actions/configure-pages@v5
       - name: Build Pages
         run: |
-          nix build .#pages
+          nix build .#docs
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3
         with:

dev/docs.nix

@@ -0,0 +1,27 @@
+{ config, pkgs, ... }:
+{
+  devShells.mkdocs = pkgs.mkShellNoCC {
+    inputsFrom = [
+      config.packages.docs
+    ];
+  };
+  packages = {
+    docs = pkgs.runCommand "docs"
+      {
+        buildInputs = [
+          pkgs.python3.pkgs.mkdocs-material
+        ];
+        files = pkgs.lib.fileset.toSource {
+          root = ../.;
+          fileset = pkgs.lib.fileset.unions [
+            ../docs
+            ../mkdocs.yml
+          ];
+        };
+      }
+      ''
+        cd $files
+        mkdocs build --strict --site-dir $out
+      '';
+  };
+}

dev/shell.nix

@@ -11,11 +11,6 @@
         ssh-to-age
       ];
     };
-    mkdocs = with pkgs; mkShellNoCC {
-      packages = [
-        python3.pkgs.mkdocs-material
-      ];
-    };
     sotp = with pkgs; mkShellNoCC {
       packages = [
         (buildGoModule rec {

flake.nix

@@ -55,9 +55,10 @@
           inputs.treefmt-nix.flakeModule
         ];
 
-        perSystem = { config, inputs', lib, pkgs, self', system, ... }:
+        perSystem = { inputs', lib, pkgs, self', system, ... }:
           {
             imports = [
+              ./dev/docs.nix
               ./dev/shell.nix
               ./terraform/shell.nix
             ];
@@ -82,23 +83,13 @@
               darwinConfigurations // devShells // { inherit (self') formatter; } // nixosConfigurations
               // pkgs.lib.optionalAttrs (system == "x86_64-linux")
                 {
-                  inherit (self'.packages) pages;
+                  inherit (self'.packages) docs;
                   nixpkgs-update-supervisor-test = pkgs.callPackage ./hosts/build02/supervisor_test.nix { };
                   nixosTests-buildbot = pkgs.nixosTests.buildbot;
                   nixosTests-buildbot-nix-master = inputs'.buildbot-nix.checks.master;
                   nixosTests-buildbot-nix-worker = inputs'.buildbot-nix.checks.worker;
                   nixosTests-hydra = pkgs.nixosTests.hydra.hydra_unstable;
                 };
-
-            packages = {
-              pages = pkgs.runCommand "pages"
-                {
-                  buildInputs = [ config.devShells.mkdocs.nativeBuildInputs ];
-                } ''
-                cd ${self}
-                mkdocs build --strict --site-dir $out
-              '';
-            };
           };
 
         flake.darwinConfigurations =