Add & configure copilot agent mode

nvim/default.nix

@@ -106,6 +106,12 @@ in
           virt-column-nvim
           indent-blankline-nvim
           zen-mode-nvim
+
+          CopilotChat-nvim
+          # enable this just to signin (used by the chat plugin above)
+          # (copilot-vim.overrideAttrs {
+          #   postPatch = "rm doc/copilot.txt";
+          # })
         ];
         opt = [
           telescope-nvim

nvim/lua/plugins/copilot.lua

@@ -0,0 +1,62 @@
+return {
+	-- {
+	-- 	"avante.nvim",
+	-- 	keys = {
+	-- 		{
+	-- 			"<leader>l",
+	-- 			"<cmd>AvanteToggle<cr>",
+	-- 			desc = "Copilot",
+	-- 			mode = { "n", "v" },
+	-- 		}
+	-- 	},
+	-- 	opts = {
+	-- 		provider = "copilot",
+	-- 		dual_boost = {
+	-- 			enabled = false,
+	-- 		},
+	-- 		behaviour = {
+	-- 			auto_suggestions = false,
+	-- 		},
+	-- 		mappings = {
+	-- 			diff = false,
+	-- 		},
+	-- 		hints = {
+	-- 			enabled = false,
+	-- 		},
+	-- 	},
+	-- 	after = function(plug)
+	-- 		require("avante").setup(plug.opts)
+	-- 	end,
+	-- },
+
+	{
+		"CopilotChat.nvim",
+		keys = {
+			{
+				"<leader>l",
+				"<cmd>CopilotChatToggle<cr>",
+				desc = "Copilot",
+				mode = { "n", "v" },
+			}
+		},
+		opts = {
+			auto_insert_mode = true,
+			mappings = {
+				complete = {
+					insert = "<C-space>",
+				},
+				close = {
+					normal = "q",
+					insert = "",
+				},
+			}
+		},
+		after = function(plug)
+			local select = require("CopilotChat.select")
+			plug.opts.selection = function(source)
+				return select.visual(source) or select.buffer(source)
+			end
+			require("CopilotChat").setup(plug.opts)
+		end,
+	},
+}