add copilot

lua/custom/plugins/copilot-cmp.lua

@@ -0,0 +1,23 @@
+return {
+  'zbirenbaum/copilot-cmp',
+  dependencies = 'copilot.lua',
+  opts = {},
+  config = function(_, opts)
+    local copilot_cmp = require 'copilot_cmp'
+    copilot_cmp.setup(opts)
+    -- attach cmp source whenever copilot attaches
+    -- fixes lazy-loading issues with the copilot cmp source
+    local on_attach = function(client, _)
+      if client.name == 'copilot' then
+        copilot_cmp._on_insert_enter {}
+      end
+    end
+    vim.api.nvim_create_autocmd('LspAttach', {
+      callback = function(args)
+        local buffer = args.buf ---@type number
+        local client = vim.lsp.get_client_by_id(args.data.client_id)
+        on_attach(client, buffer)
+      end,
+    })
+  end,
+}