[TxMt] UI blocked while running command with “Output: Discard”

[Stefan Daschek]

I’m working on a new RuboCop bundle. I want the linting to take place 
everytime a Ruby document is saved, with warnings then displayed in the 
gutter.

So I implemented a very simple command using 
`callback.document.did-save` and `TextMate::Executor.run`, and it works 
great so far. However, if I set the command to “Output: Discard”, 
TextMate’s UI seems to be blocked (no cursor movement or other editing 
possible) while the command is running.

Interestingly this does not happen with “Output: New Window”: In this 
case I can continue editing the document even while the command is still 
running.

Is this a bug? Or is there are workaround?

(Eventually the bundle will of course also include a command that shows 
RuboCop’s output. But I consider this too intrusive to run on every save.)


Stefan