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-rw-r--r--profiles/git-server.nix129
1 files changed, 129 insertions, 0 deletions
diff --git a/profiles/git-server.nix b/profiles/git-server.nix
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+{ config, pkgs, lib, ... }:
+let
+  vhostName = "git.fcuny.net";
+  stateDir = "/var/lib/gitolite";
+
+  # there's no need for web crawlers on that site
+  robots-deny = pkgs.writeText "robots.txt" ''
+    User-agent: *
+    Disallow: /
+  '';
+
+  cgitrc = ''
+    # Global configuration
+    virtual-root=/
+
+    enable-http-clone=1
+    clone-url=https://${vhostName}/$CGIT_REPO_URL
+
+    # I've fewer than 150 repos, all should be able to be listed on
+    # the main page
+    max-repo-count=150
+
+    # limit to year for the stats
+    max-stats=year
+
+    snapshots=tar.gz
+
+    source-filter=${pkgs.cgit}/lib/cgit/filters/syntax-highlighting.py
+    about-filter=${pkgs.cgit}/lib/cgit/filters/about-formatting.sh
+
+    enable-git-config=1
+    enable-index-owner=0
+
+    remove-suffix=1
+
+    # sort repositories by section and branches by date
+    repository-sort=age
+    branch-sort=age
+
+    readme=:README.md
+    readme=:README.org
+    readme=:readme.org
+
+    # print the number of modified files
+    enable-log-filecount=1
+
+    # print the number of modified lines
+    enable-log-linecount=1
+    enable-follow-links=1
+    enable-blame=1
+
+    root-title=¯\_(°ペ)_/¯
+    root-desc=source code of my various projects
+
+    # don't index or follow
+    robots="noindex, nofollow"
+
+    project-list=${stateDir}/projects.list
+    scan-path=${stateDir}/repositories
+  '';
+in
+{
+
+  # https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/services/web-servers/fcgiwrap.nix
+  services.fcgiwrap = {
+    enable = true;
+    user = "git";
+    group = "git";
+  };
+
+  services.nginx.virtualHosts."${vhostName}" = {
+    # make cgit the default site: if a request goes through nginx
+    # without a host header, this will be the default site we serve
+    # for that request.
+    default = true;
+    forceSSL = true;
+    enableACME = true;
+    listen = [
+      {
+        addr = "192.168.6.40";
+        port = 443;
+        ssl = true;
+      }
+      {
+        addr = "192.168.6.40";
+        port = 80;
+        ssl = false;
+      }
+    ];
+    locations = {
+      "~* ^.+.(css|png|ico)$" = { root = "${pkgs.cgit}/cgit"; };
+      # as per https://github.com/yandex/gixy/blob/master/docs/en/plugins/aliastraversal.md
+      # if you want to map a single file make sure the location starts with a =, e.g =/i.gif instead of /i.gif.
+      "=/robots.txt".alias = robots-deny;
+      "/".extraConfig = ''
+        include ${pkgs.nginx}/conf/fastcgi_params;
+        fastcgi_param CGIT_CONFIG ${pkgs.writeText "cgitrc" cgitrc};
+        fastcgi_param SCRIPT_FILENAME ${pkgs.cgit}/cgit/cgit.cgi;
+        fastcgi_split_path_info ^(/?)(.+)$;
+        fastcgi_param PATH_INFO $fastcgi_path_info;
+        fastcgi_param HTTP_HOST $server_name;
+        fastcgi_param QUERY_STRING $args;
+        fastcgi_pass unix:${config.services.fcgiwrap.socketAddress};
+        if ($http_user_agent ~* "(Blackbox Exporter)" ) {
+          access_log off;
+        }
+      '';
+    };
+  };
+
+  # https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/services/misc/gitolite.nix
+  services.gitolite = {
+    enable = true;
+    dataDir = stateDir;
+    adminPubkey = "sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIGX4+CuUjiX6Doi4n6RqmznzFUyRrxKhEFvuIxROzXDKAAAABHNzaDo=";
+    user = "git";
+    group = "git";
+    extraGitoliteRc = ''
+      # Make dirs/files group readable, needed for webserver/cgit. (Default
+      # setting is 0077.)
+      $RC{UMASK} = 0027;
+      $RC{GIT_CONFIG_KEYS} = 'cgit.desc cgit.hide cgit.ignore cgit.owner cgit.section';
+      $RC{LOCAL_CODE} = "$rc{GL_ADMIN_BASE}/local";
+      push( @{$RC{ENABLE}}, 'symbolic-ref' );
+    '';
+  };
+
+  my.services.backup.paths = [ cfg.stateDir ];
+}