convert fully to LSP for all the things

.config/nvim/lua/plugins/cmp.lua

@@ -1,4 +1,13 @@
 local cmp = require'cmp'
+local lspkind = require('lspkind')
+
+local source_mapping = {
+	buffer = "[Buffer]",
+	nvim_lsp = "[LSP]",
+	nvim_lua = "[Lua]",
+	cmp_tabnine = "[TN]",
+	path = "[Path]",
+}
 
 cmp.setup({
     -- snippet = {
@@ -14,22 +23,29 @@ cmp.setup({
         ['<C-b>'] = cmp.mapping(cmp.mapping.scroll_docs(-4), { 'i', 'c' }),
         ['<C-f>'] = cmp.mapping(cmp.mapping.scroll_docs(4), { 'i', 'c' }),
         ['<C-Space>'] = cmp.mapping(cmp.mapping.complete(), { 'i', 'c' }),
-        ['<C-y>'] = cmp.config.disable, -- Specify `cmp.config.disable` if you want to remove the default `<C-y>` mapping.
-        ['<C-e>'] = cmp.mapping({
-            i = cmp.mapping.abort(),
-            c = cmp.mapping.close(),
-        }),
         ['<CR>'] = cmp.mapping.confirm({ select = true }),
     },
     sources = cmp.config.sources({
-        { name = 'nvim_lsp' },
-        -- { name = 'vsnip' }, -- For vsnip users.
-        -- { name = 'luasnip' }, -- For luasnip users.
-        -- { name = 'ultisnips' }, -- For ultisnips users.
-        -- { name = 'snippy' }, -- For snippy users.
-    }, {
-        { name = 'buffer' },
-    })
+            { name = 'cmp_tabnine' },
+            { name = 'nvim_lsp' },
+    },
+        {
+            { name = 'buffer' },
+    }),
+    formatting = {
+        format = function(entry, vim_item)
+            vim_item.kind = lspkind.presets.default[vim_item.kind]
+            local menu = source_mapping[entry.source.name]
+            if entry.source.name == 'cmp_tabnine' then
+                if entry.completion_item.data ~= nil and entry.completion_item.data.detail ~= nil then
+                    menu = entry.completion_item.data.detail .. ' ' .. menu
+                end
+                vim_item.kind = '?'
+            end
+            vim_item.menu = menu
+            return vim_item
+        end
+    }
 })
 
 -- Use buffer source for `/` (if you enabled `native_menu`, this won't work anymore).
@@ -48,6 +64,20 @@ cmp.setup.cmdline(':', {
     })
 })
 
+-- Setup tabnine 
+local tabnine = require('cmp_tabnine.config')
+tabnine:setup({
+	max_lines = 1000;
+	max_num_results = 20;
+	sort = true;
+	run_on_every_keystroke = true;
+	snippet_placeholder = '..';
+	ignored_file_types = { -- default is not to ignore
+		-- uncomment to ignore in lua:
+		-- lua = true
+	};
+})
+
 -- Setup lspconfig.
 local capabilities = require('cmp_nvim_lsp').update_capabilities(vim.lsp.protocol.make_client_capabilities())
 capabilities = require('cmp_nvim_lsp').update_capabilities(capabilities)