kommode/gitea: move customization.nix to separate dir

hosts/kommode/services/gitea/customization/default.nix

@@ -0,0 +1,52 @@
+{ config, pkgs, lib, fp, ... }:
+let
+  cfg = config.services.gitea;
+in
+{
+  services.gitea-themes.monokai = pkgs.gitea-theme-monokai;
+
+  systemd.services.gitea-customization = lib.mkIf cfg.enable {
+    description = "Install extra customization in gitea's CUSTOM_DIR";
+    wantedBy = [ "gitea.service" ];
+    requiredBy = [ "gitea.service" ];
+
+    serviceConfig =  {
+      Type = "oneshot";
+      User = cfg.user;
+      Group = cfg.group;
+    };
+
+    script = let
+      logo-svg = fp /assets/logo_blue_regular.svg;
+      logo-png = fp /assets/logo_blue_regular.png;
+      extraLinks = pkgs.writeText "gitea-extra-links.tmpl" ''
+        <a class="item" href="https://www.pvv.ntnu.no/">PVV</a>
+        <a class="item" href="https://wiki.pvv.ntnu.no/">Wiki</a>
+        <a class="item" href="https://git.pvv.ntnu.no/Drift/-/projects/4">Tokyo Drift Issues</a>
+      '';
+
+      project-labels = (pkgs.formats.yaml { }).generate "gitea-project-labels.yaml" {
+        labels = lib.importJSON ./labels/projects.json;
+      };
+
+      customTemplates = pkgs.runCommandLocal "gitea-templates" {
+        nativeBuildInputs = with pkgs; [
+          coreutils
+          gnused
+        ];
+      } ''
+        # Bigger icons
+        install -Dm444 "${cfg.package.src}/templates/repo/icon.tmpl" "$out/repo/icon.tmpl"
+        sed -i -e 's/24/48/g' "$out/repo/icon.tmpl"
+      '';
+    in ''
+      install -Dm444 ${logo-svg} ${cfg.customDir}/public/assets/img/logo.svg
+      install -Dm444 ${logo-png} ${cfg.customDir}/public/assets/img/logo.png
+      install -Dm444 ${./loading.apng} ${cfg.customDir}/public/assets/img/loading.png
+      install -Dm444 ${extraLinks} ${cfg.customDir}/templates/custom/extra_links.tmpl
+      install -Dm444 ${project-labels} ${cfg.customDir}/options/label/project-labels.yaml
+
+      "${lib.getExe pkgs.rsync}" -a "${customTemplates}/" ${cfg.customDir}/templates/
+    '';
+  };
+}