set base cmp config

.config/nvim/lua/plugins/lsp.lua

@@ -26,6 +26,38 @@ return {
           end,
         },
       })
+
+      local cmp = require('cmp')
+      cmp.setup({
+        sources = {
+          {name = 'nvim_lsp'},
+        },
+        mapping = {
+          ['<C-y>'] = cmp.mapping.confirm({select = false}),
+          ['<C-e>'] = cmp.mapping.abort(),
+          ['<Up>'] = cmp.mapping.select_prev_item({behavior = 'select'}),
+          ['<Down>'] = cmp.mapping.select_next_item({behavior = 'select'}),
+          ['<C-p>'] = cmp.mapping(function()
+            if cmp.visible() then
+              cmp.select_prev_item({behavior = 'insert'})
+            else
+              cmp.complete()
+            end
+          end),
+          ['<C-n>'] = cmp.mapping(function()
+            if cmp.visible() then
+              cmp.select_next_item({behavior = 'insert'})
+            else
+              cmp.complete()
+            end
+          end),
+        },
+        snippet = {
+          expand = function(args)
+            require('luasnip').lsp_expand(args.body)
+          end,
+        },
+      })
     end
   },
 }