bigfile.nvim

This plugin automatically disables certain features if the opened file is big. File size and features to disable are configurable.

Features/integrations include: LSP, treesitter, indent_blankline, illuminate.vim NoMatchParen, syntax off, ... (full list at the end)

You can also add your own features.

Setup

Installation

-- packer example:
use {
  "LunarVim/bigfile.nvim",
}

The plugin ships with common default options. No further setup is required.

Customization

-- default config
require("bigfile").setup {
  filesize = 2, -- size of the file in MiB, the plugin round file sizes to the closest MiB
  pattern = { "*" }, -- autocmd pattern or function see <### Overriding the detection of big files>
  features = { -- features to disable
    "indent_blankline",
    "illuminate",
    "lsp",
    "treesitter",
    "syntax",
    "matchparen",
    "vimopts",
    "filetype",
  },
}

Full description of the default features is at the end of this file.

You can override the default configuration, or add your own custom features

-- all fields except `name` and `disable` are optional
local mymatchparen = {
  name = "mymatchparen", -- name
  opts = {
    defer = false, -- set to true if `disable` should be called on `BufReadPost` and not `BufReadPre`
  },
  disable = function() -- called to disable the feature
    vim.cmd "NoMatchParen"
  end,
}

require("bigfile").setup {
  filesize = 1,
  features = { "treesitter", mymatchparen }
}

Overriding the detection of big files

You can add your own logic for detecting big files by setting pattern in the config to a function. If the function returns true file will be considered big, otherwise filesize will be used as a fallback

example:

require("bigfile").setup {
  -- detect long python files
  pattern = function(bufnr, filesize_mib)
    -- you can't use `nvim_buf_line_count` because this runs on BufReadPre
    local file_contents = vim.fn.readfile(vim.api.nvim_buf_get_name(bufnr))
    local file_length = #file_contents
    local filetype = vim.filetype.match({ buf = bufnr })
    if file_length > 5000 and filetype == "python" then
      return true
    end
  end
}

Caveats

• matchparen stays disabled, even after you close the big file, you can call :DoMatchParen manually to enable it

Features/integrations

name	function
lsp	detaches the lsp client from buffer
treesitter	disables treesitter for the buffer
illuminate	disables RRethy/vim-illuminate for the buffer
indent_blankline	disables lukas-reineke/indent-blankline.nvim for the buffer
syntax	:syntax off for the buffer
filetype	filetype = "" for the buffer
vimopts	swapfile = false foldmethod = "manual" undolevels = -1 undoreload = 0 list = false for the buffer
matchparen	:NoMatchParen globally, currently this feature will stay disabled, even after you close the big file