move cmp config in plugin

nvim/.config/nvim/init.lua

@@ -57,54 +57,3 @@ vim.api.nvim_set_keymap('n', '<leader>r',':NvimTreeRefresh<CR>', {noremap = true
 vim.api.nvim_set_keymap('n', '<leader>n',':NvimTreeFindFile<CR>', {noremap = true})
 --vim.api.nvim_set_keymap('n', '<C-s>',':BufferLinePick<CR>', {noremap = true})
 vim.api.nvim_set_keymap('c', 'w!!','w !sudo tee > /dev/null %', {noremap = true})
-
-  local cmp = require'cmp'
-  cmp.setup({
-    snippet = {
-      -- REQUIRED - you must specify a snippet engine
-      expand = function(args)
-       vim.fn["UltiSnips#Anon"](args.body) -- For `ultisnips` users.
-      end,
-    },
-    mapping = {
-      ['<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 = false }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
-    },
-    sources = cmp.config.sources({
-      { name = 'nvim_lsp' },
-      { name = 'ultisnips' }, -- For ultisnips users.
-    }, {
-      { name = 'buffer' },
-      { name = 'calc'},
-    })
-  })
-
-  -- Use buffer source for `/` (if you enabled `native_menu`, this won't work anymore).
-  cmp.setup.cmdline('/', {
-    sources = {
-      { name = 'buffer' }
-    }
-  })
-
-  -- Use cmdline & path source for ':' (if you enabled `native_menu`, this won't work anymore).
-  cmp.setup.cmdline(':', {
-    sources = cmp.config.sources({
-      { name = 'path' }
-    }, {
-      { name = 'cmdline' }
-    })
-  })
-
-  -- If you want insert `(` after select function or method item
-local cmp_autopairs = require('nvim-autopairs.completion.cmp')
-local cmp = require('cmp')
-cmp.event:on( 'confirm_done', cmp_autopairs.on_confirm_done({  map_char = { tex = '' } }))
--- add a lisp filetype (wrap my-function), FYI: Hardcoded = { "clojure", "clojurescript", "fennel", "janet" }
-cmp_autopairs.lisp[#cmp_autopairs.lisp+1] = "racket"

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

@@ -176,7 +176,85 @@ return require('packer').startup {
         'SirVer/ultisnips',
         -- pictograms
         'onsails/lspkind-nvim'
-      }
+      },
+      config= function()
+                local has_words_before = function()
+          local line, col = unpack(vim.api.nvim_win_get_cursor(0))
+          return col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match("%s") == nil
+        end
+
+        local feedkey = function(key, mode)
+          vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes(key, true, true, true), mode, true)
+        end
+
+        local cmp = require'cmp'
+
+        cmp.setup {
+          formatting = {
+            format = require'lspkind'.cmp_format(),
+            with_text = true,
+          },
+          snippet = {
+            expand = function(args)
+              vim.fn["vsnip#anonymous"](args.body)
+            end,
+          },
+          mapping = {
+            ['<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,
+            ['<C-e>'] = cmp.mapping({
+              i = cmp.mapping.abort(),
+              c = cmp.mapping.close(),
+            }),
+            ['<CR>'] = cmp.mapping.confirm({ select = true }),
+            ["<Tab>"] = cmp.mapping(function(fallback)
+              if cmp.visible() then
+                cmp.select_next_item()
+              elseif vim.fn["vsnip#available"](1) == 1 then
+                feedkey("<Plug>(vsnip-expand-or-jump)", "")
+              elseif has_words_before() then
+                cmp.complete()
+              else
+                fallback() -- The fallback function sends a already mapped key. In this case, it's probably `<Tab>`.
+              end
+            end, { "i", "s" }),
+            ["<S-Tab>"] = cmp.mapping(function()
+              if cmp.visible() then
+                cmp.select_prev_item()
+              elseif vim.fn["vsnip#jumpable"](-1) == 1 then
+                feedkey("<Plug>(vsnip-jump-prev)", "")
+              end
+            end, { "i", "s" }),
+          },
+          sources = cmp.config.sources(
+            {
+              { name = 'nvim_lsp' },
+              { name = 'vsnip' },
+            },
+            {
+              { name = 'buffer' },
+            }
+          )
+        }
+
+        -- Use buffer source for `/`
+        cmp.setup.cmdline('/', {
+          sources = {
+            { name = 'buffer' }
+          }
+        })
+
+        -- Use cmdline & path source for ':'
+        cmp.setup.cmdline(':', {
+          sources = cmp.config.sources({
+            { name = 'path' }
+          }, {
+            { name = 'cmdline' }
+          })
+        })
+    end
     }
 
   use({'jose-elias-alvarez/null-ls.nvim',