From 0d2481bd78a46ed171dfcf1063a7b11fb52585cf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kier=C3=A1n=20Meinhardt?= <kmein@posteo.de>
Date: Mon, 21 Jul 2025 18:54:30 +0200
Subject: [PATCH] vim: enable copilot

---
 flake.nix        |  1 +
 lib/vim/init.vim | 13 +++++++++++++
 packages/vim.nix |  2 ++
 3 files changed, 16 insertions(+)

diff --git a/flake.nix b/flake.nix
index 3d23908..25f77eb 100644
--- a/flake.nix
+++ b/flake.nix
@@ -314,6 +314,7 @@
     // flake-utils.lib.eachSystem [flake-utils.lib.system.x86_64-linux flake-utils.lib.system.x86_64-darwin flake-utils.lib.system.aarch64-linux] (system: let
       pkgs = import nixpkgs {
         inherit system;
+        config.allowUnfree = true;
         overlays = [
           nur.overlays.default
           (self: super: {
diff --git a/lib/vim/init.vim b/lib/vim/init.vim
index 41e69f9..1a6adf5 100644
--- a/lib/vim/init.vim
+++ b/lib/vim/init.vim
@@ -124,3 +124,16 @@ set complete+=kspell
 let g:pandoc#syntax#conceal#use = 0
 let g:pandoc#modules#disabled = []
 let g:pandoc#spell#default_langs = ['en', 'de']
+
+
+" Enable Copilot for specific filetypes
+" See: https://github.com/github/copilot.vim/blob/1a55183ef9347d6f420406a3746474b6b9fb9ef5/doc/copilot.txt#L46
+let g:copilot_filetypes = {
+        \ 'python': v:true
+\}
+" Disable Copilot for files larger than 100kb
+autocmd BufReadPre *
+    \ let f=getfsize(expand("<afile>"))
+    \ | if f > 100000 || f == -2
+    \ | let b:copilot_enabled = v:false
+    \ | endif
diff --git a/packages/vim.nix b/packages/vim.nix
index ec726cc..7d2abe1 100644
--- a/packages/vim.nix
+++ b/packages/vim.nix
@@ -40,6 +40,8 @@
 
         editorconfig-vim
 
+        copilot-vim
+
         fzf-vim
         fzfWrapper
         supertab