Clear escape codes in vim-test output

[kevinburkeshyp]

When I run mocha (mochajs.org) tests with vim-test in MacVim, I get ^[[2K^[[0G appearing at the start of the line. It would be nice if those characters were filtered from the output.

Here's an example patch for this issue in vim-dispatch: tpope/vim-dispatch#86

Here is a screenshot of the issue.

[janko]

Do you know if both MacVim and GVim don't support Terminal colors when executing :!? I thought that instead of parsing escape codes (which I'm not sure how I would do, I'm unfortunately not an expert on UNIX pipes like Tim Pope 😛), I could instead just tell each runner not to use colors if we're in GUI (that is, if has('gui') is true).

[kevinburkeshyp]

Do you know if both MacVim and GVim don't support Terminal colors when executing :!?

I don't know... see http://stackoverflow.com/a/11676713/329700 which makes it sound like there's little hope. I should just abandon MacVim but having a separate application/window for vim is nice.

[kevinburkeshyp]

Thanks for the fix! Testing now.

[kevinburkeshyp]

Darn, I am still getting those odd escape sequences in Macvim... I'll check and see if mocha is printing something odd, and see if there's a way to turn it off.

[kevinburkeshyp]

(also- just double checked I am running vim-test commit ade563c)

[janko]

You're using the default test#strategy? Is --no-colors added to the executed command?

[janko]

You're right, I'm getting them too. It seems Mocha is adding those even when you turn off colors.

[janko]

Ok, this are some color-unrelated escape sequences that Mocha creates (even though it shouldn't). I copy-pasted the solution for the vim-dispatch issue, so in MacVim a sed command will be appended:

:!mocha --no-colors spec/fixtures/mocha/test/normal.js | sed -e "s/.*\e\\[2K\e\\[0G//g"

The only downside is that you will see this as an executed command. Would that be feasible?

[janko]

Mocha actually inserts a "carriage return" character (U+000D, or 13 by ASCII), if I pipe the command through empty sed, it isn't visible anymore in MacVim, but it's still there (you can see it if you pipe it to less). Anyway, I pushed a fix that removes this character through sed.

[brandoncc]

Has anyone ever figured out how to do this? I have the same problem with ruby tests and Dispatch.vim.