bicep: add git-mirroring service

hosts/bicep/configuration.nix

@@ -8,6 +8,7 @@
     ./services/nginx
 
     ./services/calendar-bot.nix
+    ./services/git-mirrors
     ./services/mysql.nix
     ./services/postgres.nix
 

hosts/bicep/services/git-mirrors/default.nix

@@ -0,0 +1,92 @@
+{ config, pkgs, lib, fp, ... }:
+let
+  cfg = config.services.gickup;
+in
+{
+  sops.secrets."gickup/github-token" = {
+    owner = "gickup";
+  };
+
+  services.gickup = {
+    enable = true;
+
+    dataDir = "/data/gickup";
+
+    destinationSettings = {
+      structured = true;
+      zip = false;
+      keep = 10;
+      bare = true;
+      lfs = true;
+    };
+
+    instances = let
+      defaultGithubConfig = {
+        settings.token_file = config.sops.secrets."gickup/github-token".path;
+      };
+      defaultGitlabConfig = {
+        # settings.token_file = ...
+      };
+    in {
+      "github:Git-Mediawiki/Git-Mediawiki" = defaultGithubConfig;
+      "github:NixOS/nixpkgs" = defaultGithubConfig;
+      "github:go-gitea/gitea" = defaultGithubConfig;
+      "github:heimdal/heimdal" = defaultGithubConfig;
+      "github:saltstack/salt" = defaultGithubConfig;
+      "github:typst/typst" = defaultGithubConfig;
+      "github:unmojang/FjordLauncher" = defaultGithubConfig;
+      "github:unmojang/drasl" = defaultGithubConfig;
+      "github:yushijinhun/authlib-injector" = defaultGithubConfig;
+
+      "gitlab:mx-puppet/discord/better-discord.js" = defaultGitlabConfig;
+      "gitlab:mx-puppet/discord/discord-markdown" = defaultGitlabConfig;
+      "gitlab:mx-puppet/discord/matrix-discord-parser" = defaultGitlabConfig;
+      "gitlab:mx-puppet/discord/mx-puppet-discord" = defaultGitlabConfig;
+      "gitlab:mx-puppet/mx-puppet-bridge" = defaultGitlabConfig;
+
+      "any:glibc" = {
+        settings.url = "https://sourceware.org/git/glibc.git";
+      };
+    };
+  };
+
+  services.cgit = let
+    domain = "bicep.pvv.ntnu.no";
+  in {
+    ${domain} = {
+      enable = true;
+      package = pkgs.callPackage (fp /packages/cgit.nix) { };
+      group = "gickup";
+      scanPath = "${cfg.dataDir}/linktree";
+      settings = {
+        enable-commit-graph = true;
+        enable-follow-links = true;
+        enable-http-clone = true;
+        enable-remote-branches = true;
+        clone-url = "https://${domain}/$CGIT_REPO_URL";
+        remove-suffix = true;
+        root-title = "PVVSPPP";
+        root-desc = "PVV Speiler Praktisk og Prominent Programvare";
+        snapshots = "all";
+        logo = "/PVV-logo.png";
+      };
+    };
+  };
+
+  services.nginx.virtualHosts."bicep.pvv.ntnu.no" = {
+    forceSSL = true;
+    enableACME = true;
+
+    locations."= /PVV-logo.png".alias = let
+      small-pvv-logo = pkgs.runCommandLocal "pvv-logo-96x96" {
+        nativeBuildInputs = [ pkgs.imagemagick ];
+      } ''
+        magick '${fp /assets/logo_blue_regular.svg}' -resize 96x96 PNG:"$out"
+      '';
+    in toString small-pvv-logo;
+  };
+
+  systemd.services."fcgiwrap-cgit-bicep.pvv.ntnu.no" = {
+    serviceConfig.BindReadOnlyPaths = [ cfg.dataDir ];
+  };
+}