using bufferline, barbar had too many conflicts unfortunately

ftplugin/lua.lua

@@ -23,7 +23,8 @@ require'lspconfig'.sumneko_lua.setup {
                     [vim.fn.expand('$VIMRUNTIME/lua')] = true,
                     [vim.fn.expand('$VIMRUNTIME/lua/vim/lsp')] = true
                 },
-                maxPreload = 10000
+                maxPreload = 100000,
+                preloadFileSize = 1000
             }
         }
     }

lua/lv-barbar/init.lua

@@ -1,3 +0,0 @@
-vim.api.nvim_set_keymap('n', '<TAB>', ':BufferNext<CR>', { noremap = true, silent = true })
-vim.api.nvim_set_keymap('n', '<S-TAB>', ':BufferPrevious<CR>', { noremap = true, silent = true })
-vim.api.nvim_set_keymap('n', '<S-x>', ':BufferClose<CR>', { noremap = true, silent = true })

lua/lv-bufferline/init.lua

@@ -0,0 +1,52 @@
+local M = {}
+
+M.config = function()
+require('bufferline').setup {
+  options = {
+    -- numbers = "none" | "ordinal" | "buffer_id" | "both",
+    -- number_style = "superscript" | "" | { "none", "subscript" }, -- buffer_id at index 1, ordinal at index 2
+    -- mappings = true | false,
+    -- close_command = "bdelete! %d",       -- can be a string | function, see "Mouse actions"
+    -- right_mouse_command = "bdelete! %d", -- can be a string | function, see "Mouse actions"
+    -- left_mouse_command = "buffer %d",    -- can be a string | function, see "Mouse actions"
+    middle_mouse_command = nil,          -- can be a string | function, see "Mouse actions"
+    indicator_icon = '▎',
+    buffer_close_icon = '',
+    modified_icon = '●',
+    close_icon = '',
+    left_trunc_marker = '',
+    right_trunc_marker = '',
+    --- name_formatter can be used to change the buffer's label in the bufferline.
+    --- Please note some names can/will break the
+    --- bufferline so use this at your discretion knowing that it has
+    --- some limitations that will *NOT* be fixed.
+    -- name_formatter = function(buf)  -- buf contains a "name", "path" and "bufnr"
+    --   -- remove extension from markdown files for example
+    --   if buf.name:match('%.md') then
+    --     return vim.fn.fnamemodify(buf.name, ':t:r')
+    --   end
+    -- end,
+    max_name_length = 18,
+    max_prefix_length = 15, -- prefix used when a buffer is de-duplicated
+    tab_size = 18,
+    -- diagnostics = "nvim_lsp",
+    offsets = {{filetype = "NvimTree", text = "File Explorer", text_align = "left", padding = 1}},
+    -- show_buffer_icons = true | false, -- disable filetype icons for buffers
+    show_buffer_close_icons = true
+    -- show_close_icon = true | false,
+    -- show_tab_indicators = true | false,
+    -- persist_buffer_sort = true, -- whether or not custom sorted buffers should persist
+    -- can also be a table containing 2 custom separators
+    -- [focused and unfocused]. eg: { '|', '|' }
+    -- separator_style = "slant" | "thick" | "thin" | { 'any', 'any' },
+    -- enforce_regular_tabs = false | true,
+    -- always_show_bufferline = true | false,
+    -- sort_by = 'extension' | 'relative_directory' | 'directory' | function(buffer_a, buffer_b)
+      -- add custom logic
+      -- return buffer_a.modified > buffer_b.modified
+    -- end
+  }
+}
+end
+
+return M

lua/plugins.lua

@@ -114,15 +114,9 @@ return require("packer").startup(function(use)
     use {"glepnir/galaxyline.nvim"}
 
     use {
-        "romgrk/barbar.nvim",
-
+        "akinsho/nvim-bufferline.lua",
         config = function()
-            vim.api.nvim_set_keymap('n', '<TAB>', ':BufferNext<CR>',
-                                    {noremap = true, silent = true})
-            vim.api.nvim_set_keymap('n', '<S-TAB>', ':BufferPrevious<CR>',
-                                    {noremap = true, silent = true})
-            vim.api.nvim_set_keymap('n', '<S-x>', ':BufferClose<CR>',
-                                    {noremap = true, silent = true})
+            require("lv-bufferline").config()
         end,
         event = "BufRead"
 
@@ -228,8 +222,9 @@ return require("packer").startup(function(use)
             vim.g.indentLine_enabled = 1
             vim.g.indent_blankline_char = "▏"
 
-            vim.g.indent_blankline_filetype_exclude =
-                {"help", "terminal", "dashboard"}
+            vim.g.indent_blankline_filetype_exclude = {
+                "help", "terminal", "dashboard"
+            }
             vim.g.indent_blankline_buftype_exclude = {"terminal"}
 
             vim.g.indent_blankline_show_trailing_blankline_indent = false
@@ -401,7 +396,7 @@ return require("packer").startup(function(use)
     use {
         "rktjmp/lush.nvim",
         -- cmd = {"LushRunQuickstart", "LushRunTutorial", "Lushify"},
-        disable = not O.plugin.lush.active,
+        disable = not O.plugin.lush.active
     }
     -- HTML preview
     use {