✨ (home/shell) add some git config + parametrize git signing key according to hostname

home/shell/git.nix

@@ -1,12 +1,34 @@
-{...}: {
+{config, ...}: let
+  sign_key =
+    {
+      "silicium" = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINTvwXCT99s1EwOCeGQ28jyCAH/RBoLZza9k5I7wWdEu laurent@silicium";
+    }
+    ."${config.networking.hostName}";
+in {
   programs.git = {
     enable = true;
     lfs.enable = true;
+
     userName = "Laureηt";
-    userEmail = "laurent@fainsin.bzh";
+    userEmail = "laurent.git@fainsin.bzh";
+
     signing = {
       signByDefault = true;
-      key = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINTvwXCT99s1EwOCeGQ28jyCAH/RBoLZza9k5I7wWdEu laurent@silicium";
+      key = sign_key;
+    };
+
+    ignores = [
+      ".cache"
+      ".DS_Store"
+      ".direnv"
+      ".venv"
+      "node_modules"
+      "result"
+      "result-*"
+    ];
+
+    extraConfig = {
+      merge.conflictstyle = "diff3";
     };
   };
 }

hosts/cesium/services/gitea/default.nix

@@ -3,13 +3,6 @@
   pkgs,
   ...
 }: {
-  age.secrets.gitea = {
-    file = ../../../../secrets/gitea.age;
-    owner = "gitea";
-    group = "gitea";
-  };
-  age.identityPaths = ["/root/.ssh/id_ed25519"];
-
   services.gitea = {
     enable = true;
     package = pkgs.forgejo;

hosts/cesium/system/age/default.nix

@@ -0,0 +1,8 @@
+{...}: {
+  age.secrets.gitea = {
+    file = ../../../../secrets/gitea.age;
+    owner = "gitea";
+    group = "gitea";
+  };
+  age.identityPaths = ["/root/.ssh/id_ed25519"];
+}

hosts/cesium/system/default.nix

@@ -13,6 +13,7 @@
     # https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/profiles/qemu-guest.nix
     (modulesPath + "/profiles/qemu-guest.nix")
 
+    ./age
     ./boot
     ./disko
     ./networking