Exit copy-mode when clearing terminal screen

[tradiff]

Thanks for identifying and fixing the issue with reset in #230! What do you think about invoking reset from VimuxClearTerminalScreen() as well? Currently, this command does nothing if the Vim pane is in copy mode.

Ultimately my goal is for vim-test to clear the screen, clear the scrollback buffer, and run the tests. And do all of this regardless of whether the pane was left in copy-mode.

Right now, vim-test performs the following (reference):

    call VimuxClearTerminalScreen()
    call VimuxClearRunnerHistory()
    call VimuxRunCommand(s:command(a:cmd))

Since VimuxRunCommand is currently the only function that executes the reset sequence, the first two functions (VimuxClearTerminalScreen and VimuxClearRunnerHistory) do nothing in copy mode. This PR modifies VimuxClearTerminalScreen to also execute the reset sequence.

Other possible solutions

1. A workaround could be to modify vim-test to execute call VimuxRunCommand("") before the three lines above, but that approach feels somewhat hacky.
2. Another option could be to create a public VimuxReset() function that vim-test could call before executing the lines above. However, I believe VimuxClearTerminalScreen() should ideally handle exiting copy-mode itself.

[mvanderkamp]

To play devil's advocate for a moment: since the sequence ends with a call to VimuxRunCommand, vim-test will already do what you describe.

Another thing to consider: what if there are other plugins, dotfiles, and/or users who depend on VimuxClearTerminalScreen not wiping the readline buffer?

[mvanderkamp]

Oh sorry no I'm mistaken you won't quite clear everything.

I think we should avoid executing CTRL-u in the runner from VimuxClearTerminalScreen but I think it would make sense to quit copy mode.

[tradiff]

@mvanderkamp Yeah good call. That seems to work for me. I pushed an update to this PR.

[tradiff]

@mvanderkamp can this get merged, or do you have any other thoughts?

[mvanderkamp]

Sorry somehow I thought I'd approved it but I must not have clicked submit!