Fix TTY identification in Tmux when using Mac OS

[thalesmello]

This solves #12 , at least on my computer.

Maybe other people with the same problem might test this to see if it solves their problem as well.

I used just head, tail and sed in my solution, so I expect this implementation to be compatible with Linux.

However, it would be desirable to have someone test it.

[ddickstein]

How can I test this version? I use vim-plug for package management.

[thalesmello]

@ddickstein Plug 'thalesmello/vim-autoswap'

[ddickstein]

Yes, this patch fixes the problem for me.

[gioele]

@thalesmello: thank you for the PR. Your patch does solve this issue on MacOS, but breaks Linux. :(

I'll find an incarnation of sed that words for GNU ps as well as for the BSD ps. (If nobody beats me to it ;))

[thalesmello]

What if we simply parse the result using Vimscript? It probably would work in both Linux and Mac. I will have my laptop with me on Sunday night, I can give it a look then.

On Fri, Jun 16, 2017, 16:56 Gioele notifications@github.com wrote:

@thalesmello https://github.com/thalesmello: thank you for the PR. Your patch does solve this issue on MacOS, but breaks Linux. :(

I'll find an incarnation of sed that words for GNU ps as well as for the BSD ps. (If nobody beats me to it ;))

— You are receiving this because you were mentioned.

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[thalesmello]

@gioele I've pushed a new commit. Could you try it out in Linux, please?

[thalesmello]

Updates on this?

[gioele]

Thank you @thalesmello for the attempt, but the problem on Linux doesn't have to do with the sed invocation but with tail -n +2 | head -n 1. ps h PID returns a single line, so tail -n +2 will return an empty string.

On the bright side, I can sort-of-replicate this problem now on FreeBSD VM. Expect a fix soon. :)