home: add git config and common module for headless systems

home/modules/git.nix

@@ -0,0 +1,64 @@
+{ config, lib, pkgs, ... }:
+let
+  name = "Yuri Tatishchev";
+  email = "itatishch@gmail.com";
+  signingKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE02AhJIZtrtZ+5sZhna39LUUCEojQzmz2BDWguT9ZHG";
+in
+{
+  programs.git = {
+    enable = true;
+
+    userName = name;
+    userEmail = email;
+
+    signing = {
+      key = signingKey;
+      signByDefault = true;
+      format = "ssh";
+    };
+
+    aliases = {
+      co = "checkout";
+      s = "switch";
+    };
+
+    extraConfig = {
+      url = {
+        "https://gitea.cazzzer.com/" = {
+          insteadOf = "caztea:";
+        };
+        "https://github.com/" = {
+          insteadOf = "github:";
+        };
+      };
+
+      core = {
+        autocrlf = "input";
+        editor = "micro";
+      };
+
+      color = {
+        ui = true;
+      };
+
+      pull = {
+        ff = "only";
+      };
+
+      filter.lfs = {
+        clean = "git-lfs clean -- %f";
+        smudge = "git-lfs smudge -- %f";
+        process = "git-lfs filter-process";
+        required = true;
+      };
+
+      credential = {
+        helper = "libsecret";
+      };
+
+      merge = {
+        conflictStyle = "zdiff3";
+      };
+    };
+  };
+}