n 2: add git config

nin/1systems/hiawatha.nix

@@ -11,6 +11,7 @@ with lib;
     ../.
     <nixpkgs/nixos/modules/installer/scan/not-detected.nix>
     ../2configs/retiolum.nix
+    ../2configs/git.nix
   ];
 
   krebs.build.host = config.krebs.hosts.hiawatha;

nin/1systems/onondaga.nix

@@ -10,6 +10,7 @@
     <nixpkgs/nixos/modules/profiles/qemu-guest.nix>
     ../2configs/retiolum.nix
     ../2configs/weechat.nix
+    ../2configs/git.nix
   ];
 
   krebs.build.host = config.krebs.hosts.onondaga;

nin/2configs/git.nix

@@ -0,0 +1,70 @@
+{ config, lib, pkgs, ... }:
+
+with import <stockholm/lib>;
+
+let
+
+  out = {
+    krebs.git = {
+      enable = true;
+      cgit = {
+        settings = {
+          root-title = "public repositories at ${config.krebs.build.host.name}";
+          root-desc = "keep calm and engage";
+        };
+      };
+      repos = mapAttrs (_: s: removeAttrs s ["collaborators"]) repos;
+      rules = rules;
+    };
+
+    krebs.iptables.tables.filter.INPUT.rules = [
+      { predicate = "-i retiolum -p tcp --dport 80"; target = "ACCEPT"; }
+    ];
+  };
+
+  repos = public-repos;
+
+  rules = concatMap make-rules (attrValues repos);
+
+  public-repos = mapAttrs make-public-repo {
+    stockholm = {
+      cgit.desc = "take all the computers hostage, they'll love you!";
+    };
+  };
+
+  make-public-repo = name: { cgit ? {}, ... }: {
+    inherit cgit name;
+    public = true;
+    hooks = {
+      post-receive = pkgs.git-hooks.irc-announce {
+        # TODO make nick = config.krebs.build.host.name the default
+        nick = config.krebs.build.host.name;
+        channel = "#retiolum";
+        server = "ni.r";
+        verbose = config.krebs.build.host.name == "onondaga";
+        # TODO define branches in some kind of option per repo
+        branches = [ "master" ];
+      };
+    };
+  };
+
+  make-rules =
+    with git // config.krebs.users;
+    repo:
+      singleton {
+        user = [ nin ];
+        repo = [ repo ];
+        perm = push "refs/*" [ non-fast-forward create delete merge ];
+      } ++
+      optional repo.public {
+        user = attrValues config.krebs.users;
+        repo = [ repo ];
+        perm = fetch;
+      } ++
+      optional (length (repo.collaborators or []) > 0) {
+        user = repo.collaborators;
+        repo = [ repo ];
+        perm = fetch;
+      };
+
+in out