git: Don't use emacs as editor when it's not enabled

flake.lock

@@ -656,6 +656,21 @@
         "type": "github"
       }
     },
+    "nixos-facter-modules": {
+      "locked": {
+        "lastModified": 1726644499,
+        "narHash": "sha256-A8w2L9vRCKnj2UAmfSYewiD+yNgEhbEY6ITVgj8DIHs=",
+        "owner": "numtide",
+        "repo": "nixos-facter-modules",
+        "rev": "cc817a8491bbb6eea30533e0c6f89d101a52b72e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "nixos-facter-modules",
+        "type": "github"
+      }
+    },
     "nixos-hardware": {
       "locked": {
         "lastModified": 1726724509,
@@ -848,6 +863,7 @@
         "naersk": "naersk",
         "nil": "nil",
         "nix-ld-rs": "nix-ld-rs",
+        "nixos-facter-modules": "nixos-facter-modules",
         "nixos-hardware": "nixos-hardware",
         "nixpkgs": "nixpkgs_2",
         "pamedia": "pamedia",

flake.nix

@@ -102,13 +102,7 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
-    # atuin = {
-    #   url = "github:atuinsh/atuin";
-    #   inputs = {
-    #     nixpkgs.follows = "nixpkgs";
-    #     flake-utils.follows = "flake-utils";
-    #   };
-    # };
+    nixos-facter-modules.url = "github:numtide/nixos-facter-modules";
 
     caddy-with-plugins = {
       url = "github:eboskma/caddy-with-plugins";

home-manager/modules/emacs/config.org

@@ -885,7 +885,48 @@ Let's evaluate this puppy.
               gptel-backend (gptel-make-ollama "Ollama"
                               :host "100.119.162.110:11434"
                               :stream t
-                          :models '("mistral-nemo"))))
+                              :models '("mistral" "mistral-nemo")))
+        (add-to-list 'gptel-directives '(commit . "You are an expert programmer summarizing a git diff.
+  Reminders about the git diff format:
+  For every file, there are a few metadata lines, like (for example):
+  ```
+  diff --git a/lib/index.js b/lib/index.js
+  index aadf691..bfef603 100644
+  --- a/lib/index.js
+  +++ b/lib/index.js
+  ```
+  This means that `lib/index.js` was modified in this commit. Note that this is only an example.
+  Then there is a specifier of the lines that were modified.
+  A line starting with `+` means it was added.
+  A line that starting with `-` means that line was deleted.
+  A line that starts with neither `+` nor `-` is code given for context and better understanding.
+  It is not part of the diff.
+  After the git diff of the first file, there will be an empty line, and then the git diff of the next file.
+
+  Do not include the file name as another part of the comment.
+  Do not use the characters `[` or `]` in the summary.
+  Write every summary comment in a new line.
+  Comments should be in a bullet point list, each line starting with a `-`.
+  The summary should not include comments copied from the code.
+  The output should be easily readable. When in doubt, write fewer comments and not more. Do not output comments that
+  simply repeat the contents of the file.
+  Readability is top priority. Write only the most important comments about the diff.
+
+  EXAMPLE SUMMARY COMMENTS:
+  ```
+  - Raise the amount of returned recordings from `10` to `100`
+  - Fix a typo in the github action name
+  - Move the `octokit` initialization to a separate file
+  - Add an OpenAI API for completions
+  - Lower numeric tolerance for test files
+  - Add 2 tests for the inclusive string split function
+  ```
+  Most commits will have less comments than this examples list.
+  The last comment does not include the file names,
+  because there were more than two relevant files in the hypothetical commit.
+  Do not include parts of the example in your summary.
+  It is given only as an example of appropriate comments.
+  ")))
   #+end_src
   
 ** Git

home-manager/modules/git/default.nix

@@ -8,6 +8,12 @@
 with lib;
 let
   cfg = config.eboskma.programs.git;
+
+  editor =
+    if config.eboskma.programs.emacs.enable then
+      "${config.eboskma.programs.emacs.package}/bin/emacsclient"
+    else
+      "${pkgs.neovim}/bin/nvim";
 in
 {
   options.eboskma.programs.git = {
@@ -116,7 +122,7 @@ in
           defaultBranch = "main";
         };
         core = {
-          editor = "${config.eboskma.programs.emacs.package}/bin/emacsclient";
+          editor = "${editor}";
           pager = "${pkgs.bat}/bin/bat";
           untrackedCache = true;
           # fsmonitor =