Hang at startup when $GIT_DIR is set

[loiccoyle]

When setting GIT_DIR to a .git folder, nvim hangs for ~10s at startup.

To reproduce:

GIT_DIR=/some/repo/.git nvim

It doesn't occur when I remove nvim-tree.

[loiccoyle]

For more info about the plugins I use see: wbthomason/packer.nvim#465

[kyazdani42]

could not reproduce the lag, can you give me a minimal sample config from which you can reproduce the error (like only a packer and nvim-tree with config options or not ?)

[loiccoyle]

I can reproduce it with:
init.lua:

require('plugins')

lua/plugins.lua:

local execute = vim.api.nvim_command
local fn = vim.fn

local install_path = fn.stdpath('data')..'/site/pack/packer/start/packer.nvim'

if fn.empty(fn.glob(install_path)) > 0 then
  fn.system({'git', 'clone', 'https://github.com/wbthomason/packer.nvim', install_path})
  execute 'packadd packer.nvim'
end

local packer = require('packer')
return packer.startup(function(use)
  -- Plugin Manager
  use {'wbthomason/packer.nvim'}
  -- File explorer
  use {'kyazdani42/nvim-tree.lua'}
end)

Make sure to clear your compiled packer file and such....

To trigger the hang:

cd 
git clone https://github.com/kyazdani42/nvim-tree.lua
GIT_DIR=nvim-tree.lua/.git nvim

nvim is unresponsive for 7-8s after startup, afterwards, it works as expected.

If I don't set GIT_DIR all is good.

[kyazdani42]

very weird indeed, i think this might be caused by too many git changes and a lot of git commands issued actually. It's not really something that i can fix imo.

[kyazdani42]

i managed to reproduce only running nvim from a big directory (Home in my case)

[loiccoyle]

Ok thanks for looking into it !

[felixniemeyer]

I have exactly this issue.
Home is a git repo on my computer as well. (I use it to version control my .bashrc, .Xressources .config/*, and so on).
Whenever I open a file such as ~/test.txt I would get 1 to 2s of lag before I can type. I just disabled the tree plugin because of this.

[kyazdani42]

i'm currently rewriting the git module by running git commands in jobs to avoid blocking nvim. It will probably help a lot.

[kyazdani42]

I'm closing this in favor of #549 :)