[Bug]: Wezterm should set user var `IS_NVIM=false` on `VimLeavePre` instead of `ExitPre`, and also when suspended

[mrjones2014]

Similar Issues

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Neovim Version

NVIM v0.9.0
Build type: Release
LuaJIT 2.1.0-beta3

   system vimrc file: "$VIM/sysinit.vim"
  fall-back for $VIM: "
/nix/store/kl3f86carin2wk10hb7d9ws30c8jma46-neovim-unwrapped-0.9.0/share/nvim
"

Run :checkhealth for more info

Multiplexer Integration

Wezterm

Multiplexer Version

No response

Steps to Reproduce

Two cases

1. Suspend nvim with ctrl+z

2. IS_NVIM user var will still be true

3. autocmd ExitPre * :set modified

4. IS_NVIM user var will be set to false, but exiting nvim will be cancelled due to modified buffer

Expected Behavior

IS_NVIM is set consistently and correctly

Actual Behavior

It is not set accurately in the cases described above in "Steps to Reproduce"

Minimal Configuration to Reproduce

local root = vim.fn.fnamemodify('./.repro', ':p')

-- set stdpaths to use .repro
for _, name in ipairs({ 'config', 'data', 'state', 'cache' }) do
  vim.env[('XDG_%s_HOME'):format(name:upper())] = root .. '/' .. name
end

-- bootstrap lazy
local lazypath = root .. '/plugins/lazy.nvim'
if not vim.loop.fs_stat(lazypath) then
  vim.fn.system({
    'git',
    'clone',
    '--filter=blob:none',
    '--single-branch',
    'https://github.com/folke/lazy.nvim.git',
    lazypath,
  })
end
vim.opt.runtimepath:prepend(lazypath)

-- install plugins
local plugins = {
  -- do not remove the colorscheme! it makes testing nicer
  'folke/tokyonight.nvim',
  'mrjones2014/smart-splits.nvim',
  -- add any other pugins here
}

require('lazy').setup(plugins, {
  root = root .. '/plugins',
})

require('smart-splits').setup({
  -- add any options here
})

-- recommended mappings
-- resizing splits
-- these keymaps will also accept a range,
-- for example `10<A-h>` will `resize_left` by `(10 * config.default_amount)`
vim.keymap.set('n', '<A-h>', require('smart-splits').resize_left)
vim.keymap.set('n', '<A-j>', require('smart-splits').resize_down)
vim.keymap.set('n', '<A-k>', require('smart-splits').resize_up)
vim.keymap.set('n', '<A-l>', require('smart-splits').resize_right)
-- moving between splits
vim.keymap.set('n', '<C-h>', require('smart-splits').move_cursor_left)
vim.keymap.set('n', '<C-j>', require('smart-splits').move_cursor_down)
vim.keymap.set('n', '<C-k>', require('smart-splits').move_cursor_up)
vim.keymap.set('n', '<C-l>', require('smart-splits').move_cursor_right)
-- swapping buffers between windows
vim.keymap.set('n', '<leader><leader>h', require('smart-splits').swap_buf_left)
vim.keymap.set('n', '<leader><leader>j', require('smart-splits').swap_buf_down)
vim.keymap.set('n', '<leader><leader>k', require('smart-splits').swap_buf_up)
vim.keymap.set('n', '<leader><leader>l', require('smart-splits').swap_buf_right)

-- add anything else here
vim.opt.termguicolors = true
-- do not remove the colorscheme! it makes testing nicer
vim.cmd([[colorscheme tokyonight]])

Additional Details and/or Screenshots

No response

[mrjones2014]

Not sure how to detect suspend 🤔

[mrjones2014]

TIL there are VimSuspend and VimResume autocmds lol