added bufferline and others

lua/user/nvim-tree.lua

@@ -0,0 +1,80 @@
+local status_ok, nvim_tree = pcall(require, "nvim-tree")
+if not status_ok then
+    return
+end
+
+local function my_on_attach(bufnr)
+  local api = require "nvim-tree.api"
+
+  local function opts(desc)
+    return { desc = "nvim-tree: " .. desc, buffer = bufnr, noremap = true, silent = true, nowait = true }
+  end
+
+  -- default mappings
+  api.config.mappings.default_on_attach(bufnr)
+
+  -- custom mappings
+  vim.keymap.set("n", "<C-t>", api.tree.change_root_to_parent,        opts("Up"))
+  vim.keymap.set("n", "?",     api.tree.toggle_help,                  opts("Help"))
+  vim.keymap.set("n", "l",     api.node.open.edit,                    opts("Open"))
+  vim.keymap.set("n", "h",     api.node.navigate.parent_close,        opts("close_node"))
+end
+
+
+-- set termguicolors to enable highlight groups
+vim.opt.termguicolors = true
+
+-- OR setup with some options
+nvim_tree.setup({
+  on_attach = my_on_attach,
+  sort_by = "case_sensitive",
+  view = {
+    adaptive_size = true,
+  },
+  hijack_cursor = true,
+  renderer = {
+      highlight_git = true,
+      root_folder_modifier = ":t",
+      icons = {
+          show = {
+              file = true,
+              folder = true,
+              folder_arrow = true,
+              git = true,
+          },
+          glyphs = {
+              default = "",
+              symlink = "",
+              git = {
+                  unstaged = "",
+                  staged = "S",
+                  unmerged = "",
+                  renamed = "➜",
+                  deleted = "",
+                  untracked = "U",
+                  ignored = "◌",
+              },
+              folder = {
+                  default = "",
+                  open = "",
+                  empty = "",
+                  empty_open = "",
+                  symlink = "",
+              },
+          }
+      }
+  },
+  filters = {
+    dotfiles = true,
+  },
+  update_cwd = true,
+  diagnostics = {
+      enable = true,
+      icons = {
+          hint = "",
+          info = "",
+          warning = "",
+          error = "",
+      },
+  },
+})