Don't use file watcher to watch temp file

Author: smjonas

lua/live-command/init.lua

@@ -350,7 +350,9 @@ local create_autocmds = function()
 
   vim.api.nvim_create_autocmd("CmdlineEnter", {
     group = id,
-    callback = remote.on_cmdline_enter,
+    callback = function()
+      remote.sync(chan_id)
+    end,
   })
 
   -- We need to be able to tell when the command was cancelled so the buffer lines are refetched next time.

lua/live-command/remote.lua

@@ -5,27 +5,6 @@ local tmp_file_watcher
 local uv = vim.loop
 local dirty = true
 
-local watch_tmp_file = function(chan_id)
-  tmp_file_watcher = uv.new_fs_event()
-  tmp_file_watcher:start(
-    tmp_file,
-    {},
-    vim.schedule_wrap(function(_, fname, status)
-      if dirty then
-        -- Open the current file in the remote Nvim instance
-        vim.rpcrequest(
-          chan_id,
-          "nvim_exec",
-          -- Store the current sequence number that can be reverted back to
-          ("e! %s | lua vim.g._seq_cur = vim.fn.undotree().seq_cur"):format(tmp_file),
-          false
-        )
-        dirty = false
-      end
-    end)
-  )
-end
-
 -- Starts a new Nvim instance and connects to it via RPC
 M.init_rpc = function(on_chan_id)
   -- Avoid an infinite loop
@@ -58,33 +37,34 @@ M.init_rpc = function(on_chan_id)
   )
   assert(handle)
 
-  for i = 0, 100 do
+  for _ = 0, 100 do
     local ok, chan_id
     ok, chan_id = pcall(vim.fn.sockconnect, "pipe", server_address, { rpc = true })
     if ok then
       on_chan_id(chan_id)
-      watch_tmp_file(chan_id)
       return
     end
     vim.wait(10)
   end
   vim.notify("[live-command.nvim] failed to connect to remote Neovim instance after 1000 ms", vim.log.levels.ERROR)
 end
 
-M.shutdown = function()
-  if tmp_file_watcher then
-    tmp_file_watcher:stop()
-  end
-end
-
 M.on_text_changed = function()
   dirty = true
 end
 
-M.on_cmdline_enter = function()
+M.sync = function(chan_id)
   if dirty then
     -- Synchronize buffers by writing out the current buffer contents to a temporary file
-    vim.cmd("keepalt w! " .. tmp_file)
+    vim.cmd("silent keepalt w! " .. tmp_file)
+    vim.rpcrequest(
+      chan_id,
+      "nvim_exec",
+      -- Store the current sequence number that can be reverted back to
+      ("e! %s | lua vim.g._seq_cur = vim.fn.undotree().seq_cur"):format(tmp_file),
+      false
+    )
+    dirty = false
   end
 end