stockholm/modules/tv/git/cgit.nix

{ cfg, config, lib, pkgs, ... }:

let
  inherit (builtins) attrValues filter getAttr;
  inherit (lib) concatMapStringsSep mkIf optionalString;

  location = lib.nameValuePair; # TODO this is also in modules/wu/default.nix

  isPublicRepo = getAttr "public"; # TODO this is also in ./default.nix
in

{
    users.extraUsers = lib.singleton {
      name = "fcgiwrap";
      uid = 2851179180; # genid fcgiwrap
      group = "fcgiwrap";
      home = "/var/empty";
    };

    users.extraGroups = lib.singleton {
      name = "fcgiwrap";
      gid = 2851179180; # genid fcgiwrap
    };

    services.fcgiwrap = {
      enable = true;
      user = "fcgiwrap";
      group = "fcgiwrap";
      # socketAddress = "/run/fcgiwrap.sock" (default)
      # socketType = "unix" (default)
    };

    environment.etc."cgitrc".text = ''
      css=/cgit-static/cgit.css
      logo=/cgit-static/cgit.png

      # if you do not want that webcrawler (like google) index your site
      robots=noindex, nofollow

      virtual-root=/cgit

      # TODO make this nicer
      cache-root=/tmp/cgit

      cache-size=1000
      enable-commit-graph=1
      enable-index-links=1
      enable-index-owner=0
      enable-log-filecount=1
      enable-log-linecount=1
      enable-remote-branches=1

      root-title=public repositories at ${config.networking.hostName}
      root-desc=keep calm and engage

      snapshots=0
      max-stats=year

      ${concatMapStringsSep "\n" (repo: ''
        repo.url=${repo.name}
        repo.path=${cfg.dataDir}/${repo.name}
        ${optionalString (repo.section != null) "repo.section=${repo.section}"}
        ${optionalString (repo.desc != null) "repo.desc=${repo.desc}"}
      '') (filter isPublicRepo (attrValues cfg.repos))}
    '';

    tv.nginx = {
      enable = true;
      retiolum-locations = [
        (location "/cgit/" ''
          include             ${pkgs.nginx}/conf/fastcgi_params;
          fastcgi_param       SCRIPT_FILENAME ${pkgs.cgit}/cgit/cgit.cgi;
          fastcgi_split_path_info ^(/cgit/?)(.+)$;
          fastcgi_param       PATH_INFO       $fastcgi_path_info;
          fastcgi_param       QUERY_STRING    $args;
          fastcgi_param       HTTP_HOST       $server_name;
          fastcgi_pass        unix:${config.services.fcgiwrap.socketAddress};
        '')
        (location "= /cgit" ''
          return 301 /cgit/;
        '')
        (location "/cgit-static/" ''
          root ${pkgs.cgit}/cgit;
          rewrite ^/cgit-static(/.*)$ $1 break;
        '')
      ];
    };
}