cmp: add copilot as cmp source

lua/plugins/cmp.lua

@@ -17,10 +17,20 @@ return {
     dependencies = {
       'hrsh7th/cmp-nvim-lsp',
       'L3MON4D3/LuaSnip',
-      'saadparwaiz1/cmp_luasnip'
+      'saadparwaiz1/cmp_luasnip',
+
+      { -- copilot
+        'zbirenbaum/copilot.lua',
+        opts = { suggestion = { enabled = false }, panel = { enabled = false } }
       },
 
-    config = function ()
+      { -- copilot-cmp source
+        'zbirenbaum/copilot-cmp',
+        opts = { clear_after_cursor = true }
+      }
+    },
+
+    config = function()
       -- nvim-cmp setup
       local cmp = require 'cmp'
       local luasnip = require 'luasnip'
@@ -34,7 +44,7 @@ return {
           end,
         },
         mapping = cmp.mapping.preset.insert {
-          ['<C-d>'] = cmp.mapping.scroll_docs(-4),
+          ['<C-d>'] = cmp.mapping.scroll_docs( -4),
           ['<C-f>'] = cmp.mapping.scroll_docs(4),
           ['<C-Space>'] = cmp.mapping.complete {},
           ['<CR>'] = cmp.mapping.confirm {
@@ -53,8 +63,8 @@ return {
           ['<S-Tab>'] = cmp.mapping(function(fallback)
             if cmp.visible() then
               cmp.select_prev_item()
-            elseif luasnip.jumpable(-1) then
-              luasnip.jump(-1)
+            elseif luasnip.jumpable( -1) then
+              luasnip.jump( -1)
             else
               fallback()
             end
@@ -63,6 +73,7 @@ return {
         sources = {
           { name = 'nvim_lsp' },
           { name = 'luasnip' },
+          { name = 'copilot' },
         },
       }
     end