bug: Plugin blocks editor shortly after opening file

[jvanbruegge]

Did you check docs and existing issues?

• I have read all the plugin docs
• I have searched the existing issues
• I have searched the existing issues of plugins related to this issue

Neovim version (nvim -v)

v0.11.1

Operating system/version

NixOS 25.05 (Linux)

Describe the bug

After installing and setting up the plugin, when I open telescope to load a new file, after a few seconds it completely stops responding to my inputs. After a few more, I regain control.
The same happens after I load a file in the editor session.

I can only assume that the plugin is not using async processing?

Steps To Reproduce

1. Load file
2. Wait a few seconds

Expected Behavior

Nothing blocks me from typing in the editor.

[jvanbruegge]

Yeah, I have to disable this again, even doing a git commit hangs for about 4 seconds, before letting me write a commit message

[jvanbruegge]

Ok, I did some investigating and the problem is actually this autocmd which is not done asynchronously: https://github.com/lowitea/aw-watcher.nvim/blob/master/lua/aw_watcher/init.lua#L52

[jvanbruegge]

I have no idea what the reason is. I tried profiling, but that only shows me that nvim_buf_create takes a long time. In general the blocking happens sometimes when opening telescope or a cmp completion popup and rarely when just opening a file. I also noticed that saving a file takes a while.
All of these issues dissapear when disabling the plugin

[abdulkareemakn]

I installed the plugin and everything was instantly sluggish. Everything started taking a long time. Opening file picker etc. My issues also disappeared after disabling the plugin.

[Xyhlon]

Same behavior here. This plugin makes neovim basically unusable.

[Charlie-83]

I have the same issue. Even :enew takes multiple seconds.

[cbarber]

PR up to fix. In place config fix:

{
  "lowitea/aw-watcher.nvim",
  opts = {
    aw_server = {
      host = "127.0.0.1",
      port = 5600,
    },
  },
  config = function(_, opts)
    local aw = require("aw_watcher")
    aw.setup(opts)
    local client = aw.__private.aw
    client.__post = function(self, url, data)
      local body = vim.fn.json_encode(data)
      local args = { "-X", "POST", url, "-H", "Content-Type: application/json", "--data-raw", body }
      local handle
      handle = vim.loop.spawn("curl", { args = args, verbatim = false }, function(code)
        self.connected = code == 0
        if handle and not handle:is_closing() then handle:close() end
      end)
    end
  end,
}