2022-12-17

1 files changed, 117 insertions, 0 deletions

diff --git a/modules/nixos/git.nix b/modules/nixos/git.nix
new file mode 100644
index 0000000..f754588
--- /dev/null
+++ b/modules/nixos/git.nix
@@ -0,0 +1,117 @@
+{
+  config,
+  lib,
+  inputs,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.git;
+in {
+  options.nixfiles.modules.git.server = {
+    enable = mkEnableOption "Git server";
+
+    domain = mkOption {
+      description = "Domain name sans protocol scheme.";
+      type = with types; nullOr str;
+      default = "git.${config.networking.domain}";
+    };
+
+    package = mkOption {
+      description = "Package.";
+      type = types.package;
+      default = pkgs.cgit-pink;
+    };
+  };
+
+  config = mkMerge [
+    (mkIf cfg.client.enable {
+      secrets = {
+        glab-cli-config = {
+          file = "${inputs.self}/secrets/glab-cli-config";
+          path = "${config.dirs.config}/glab-cli/config.yml";
+          owner = my.username;
+          inherit (config.my) group;
+        };
+        gh-hosts = {
+          file = "${inputs.self}/secrets/gh-hosts";
+          path = "${config.dirs.config}/gh/hosts.yml";
+          owner = my.username;
+          inherit (config.my) group;
+        };
+        hut = {
+          file = "${inputs.self}/secrets/hut";
+          path = "${config.dirs.config}/hut/config";
+          owner = my.username;
+          inherit (config.my) group;
+        };
+      };
+    })
+    (mkIf cfg.server.enable {
+      nixfiles.modules.nginx = {
+        enable = true;
+        virtualHosts.${cfg.server.domain} = {
+          locations = {
+            "/".extraConfig = let
+              cgitrc = pkgs.writeText "cgitrc" ''
+                root-title=azahi’s git stuff
+                root-desc=鯛も一人はうまからず
+
+                about-filter=${cfg.server.package}/lib/cgit/filters/about-formatting.sh
+                source-filter=${cfg.server.package}/lib/cgit/filters/syntax-highlighting.py
+                commit-filter=${cfg.server.package}/lib/cgit/filters/commit-links.sh
+
+                enable-git-config=1
+                enable-gitweb-owner=1
+                remove-suffix=1
+
+                snapshots=tar.gz tar.bz2 zip
+
+                readme=:README
+                readme=:README.md
+                readme=:README.org
+                readme=:README.txt
+                readme=:readme
+                readme=:readme.md
+                readme=:readme.org
+                readme=:readme.txt
+
+                scan-path=${config.services.gitolite.dataDir}/repositories
+              '';
+            in ''
+              include ${config.services.nginx.package}/conf/fastcgi_params;
+              fastcgi_split_path_info ^(/?)(.+)$;
+              fastcgi_pass unix:${config.services.fcgiwrap.socketAddress};
+              fastcgi_param SCRIPT_FILENAME ${cfg.server.package}/cgit/cgit.cgi;
+              fastcgi_param CGIT_CONFIG ${cgitrc};
+              fastcgi_param PATH_INFO $uri;
+              fastcgi_param QUERY_STRING $args;
+              fastcgi_param HTTP_HOST $server_name;
+            '';
+            # FIXME This breaks sources previewing for these files.
+            "~* ^/(.+.(ico|css|png))$".extraConfig = ''
+              alias ${cfg.server.package}/cgit/$1;
+            '';
+          };
+        };
+      };
+
+      services = let
+        user = "git";
+        group = "git";
+      in {
+        gitolite = {
+          # TODO Make the configuration purely declarative.
+          enable = true;
+          inherit user group;
+          adminPubkey = my.ssh.key;
+        };
+
+        fcgiwrap = {
+          enable = true;
+          inherit user group;
+        };
+      };
+    })
+  ];
+}