DashNix/nvim/lua/settings/nvim-tree.lua

-- following options are the default
-- each of these are documented in `:help nvim-tree.OPTION_NAME`

local status_ok, nvim_tree = pcall(require, "nvim-tree")
if not status_ok then
  return
end

local config_status_ok, nvim_tree_config = pcall(require, "nvim-tree.config")
if not config_status_ok then
  return
end

nvim_tree.setup { -- BEGIN_DEFAULT_OPTS
  auto_reload_on_write = true,
  create_in_closed_folder = false,
  disable_netrw = false,
  hijack_cursor = false,
  hijack_netrw = true,
  hijack_unnamed_buffer_when_opening = false,
  ignore_buffer_on_setup = false,
  open_on_setup = true,
  open_on_setup_file = true,
  open_on_tab = true,
  ignore_buf_on_tab_change = {},
  sort_by = "name",
  root_dirs = {},
  prefer_startup_root = false,
  sync_root_with_cwd = true,
  reload_on_bufenter = false,
  respect_buf_cwd = true,
  on_attach = "disable", -- function(bufnr). If nil, will use the deprecated mapping strategy
  remove_keymaps = false, -- boolean (disable totally or not) or list of key (lhs)
  view = {
    adaptive_size = false,
    centralize_selection = false,
    width = 30,
    hide_root_folder = false,
    side = "right",
    preserve_window_proportions = false,
    number = false,
    relativenumber = false,
    signcolumn = "yes",
    -- @deprecated
    mappings = {
      custom_only = false,
      list = {
        -- user mappings go here
      },
    },
    float = {
      enable = false,
      open_win_config = {
        relative = "editor",
        border = "rounded",
        width = 30,
        height = 30,
        row = 1,
        col = 1,
      },
    },
  },
  renderer = {
    add_trailing = false,
    group_empty = true,
    highlight_git = false,
    full_name = false,
    highlight_opened_files = "none",
    root_folder_modifier = ":~",
    indent_width = 2,
    indent_markers = {
      enable = false,
      inline_arrows = true,
      icons = {
        corner = "└",
        edge = "│",
        item = "│",
        bottom = "─",
        none = " ",
      },
    },
    icons = {
      webdev_colors = true,
      git_placement = "before",
      padding = " ",
      symlink_arrow = " ➛ ",
      show = {
        file = true,
        folder = true,
        folder_arrow = true,
        git = true,
      },
      glyphs = {
        default = "",
        symlink = "",
        bookmark = "",
        folder = {
          arrow_closed = "",
          arrow_open = "",
          default = "",
          open = "",
          empty = "",
          empty_open = "",
          symlink = "",
          symlink_open = "",
        },
        git = {
          unstaged = "✗",
          staged = "✓",
          unmerged = "",
          renamed = "➜",
          untracked = "★",
          deleted = "",
          ignored = "◌",
        },
      },
    },
    special_files = { "cargo.toml", "makefile", "readme.md", "readme.md" },
    symlink_destination = true,
  },
  hijack_directories = {
    enable = true,
    auto_open = true,
  },
  update_focused_file = {
    enable = true,
    -- update_cwd = true,
    update_root = false,
    ignore_list = {},
  },
  ignore_ft_on_setup = {},
  system_open = {
    cmd = "",
    args = {},
  },
  diagnostics = {
    enable = false,
    show_on_dirs = false,
    debounce_delay = 50,
    icons = {
      hint = "",
      info = "",
      warning = "",
      error = "",
    },
  },
  filters = {
    dotfiles = false,
    custom = {},
    exclude = {},
  },
  filesystem_watchers = {
    enable = true,
    debounce_delay = 50,
  },
  git = {
    enable = true,
    ignore = true,
    show_on_dirs = true,
    timeout = 400,
  },
  actions = {
    use_system_clipboard = true,
    change_dir = {
      enable = true,
      global = false,
      restrict_above_cwd = false,
    },
    expand_all = {
      max_folder_discovery = 300,
      exclude = {},
    },
    file_popup = {
      open_win_config = {
        col = 1,
        row = 1,
        relative = "cursor",
        border = "shadow",
        style = "minimal",
      },
    },
    open_file = {
      quit_on_open = false,
      resize_window = true,
      window_picker = {
        enable = true,
        chars = "abcdefghijklmnopqrstuvwxyz1234567890",
        exclude = {
          filetype = { "notify", "packer", "qf", "diff", "fugitive", "fugitiveblame" },
          buftype = { "nofile", "terminal", "help" },
        },
      },
    },
    remove_file = {
      close_window = true,
    },
  },
  trash = {
    cmd = "gio trash",
    require_confirm = true,
  },
  live_filter = {
    prefix = "[FILTER]: ",
    always_show_folders = true,
  },
  log = {
    enable = false,
    truncate = false,
    types = {
      all = false,
      config = false,
      copy_paste = false,
      dev = false,
      diagnostics = false,
      git = false,
      profile = false,
      watcher = false,
    },
  },
}

-- nvim-tree is also there in modified buffers so this function filter it out
local modifiedBufs = function(bufs)
  local t = 0
  for k, v in pairs(bufs) do
    if v.name:match("NvimTree_") == nil then
      t = t + 1
    end
  end
  return t
end

vim.api.nvim_create_autocmd("BufEnter", {
  nested = true,
  callback = function()
    if #vim.api.nvim_list_wins() == 1 and
        vim.api.nvim_buf_get_name(0):match("NvimTree_") ~= nil and
        modifiedBufs(vim.fn.getbufinfo({ bufmodified = 1 })) == 0 then
      vim.cmd "quit"
    end
  end
})