Re: extglob unset when filtering/writing text lines to bash

On 2015-06-16, Paul Domaskis wrote:
> On Mon, Jun 15, 2015 at 9:55 PM, Paul wrote:
> > On Monday, June 15, 2015 at 9:11:12 PM UTC-4, Gary Johnson wrote:
> >> The [solution] which I currently use...is to create a file,
> >> ~/.vim/bash_env.sh, which contains the following:
> >>
> >> shopt -s extglob # Enable !(pattern-list).
> >>
> >> and then put this in my ~/.vimrc:
> >>
> >> if !exists("$BASH_ENV") || $BASH_ENV == ""
> >> if filereadable($HOME . "/.vim/bash_env.sh")
> >> let $BASH_ENV = "$HOME/.vim/bash_env.sh"
> >> endif
> >> endif
> >>
> >> The second seems more robust to me in part because I use the same
> >> ~/.vimrc on a variety of machines and OSes and the first solution
> >> doesn't work on Vims older that 7.3.269.
> >
> > I looked up BASH_ENV, and I see what you're doing. However, my
> > vimrc (which is confirmed to run) explicitly does shopt -s extglob.
> > In fact, I added an immediately subsequent shopt -p extglob, which
> > confirms that extglob was successfully enabled. That's great when
> > ~/.bashrc is running, but once that's done, it seems that it doesn't
> > persist to the point where the code banged out from vim is run.
> > Very, very weird.

Indeed. I wish I understood why, just because it bothers me when I
don't.

> > It's late, but I've got your example code above to try when I get a
> > few extra moments. It's obvious that the shopt setting of extglob
> > gets dropped sometime between completion of ~/.bashrc and execution
> > of the code that is banged out from vim. BASH_ENV may solve the
> > problem because it is persistent, and may get picked up by whatever
> > bash process actually ends up running the banged out code.
>
> Gary, your solution works fantastically. In order to avoid having to
> provide separate bash_env.sh files for the PC and unix (cygwin)
> versions of vim, I have one version of your vimrc code above for each
> vim.
>
> If the vimrc determine that the process is cygwin vim:
>
> let &shell='/bin/bash -i'
> if !exists("$BASH_ENV") || $BASH_ENV == ""
> if filereadable($HOME . "/.vim/bash_env.sh")
> let $BASH_ENV = "$HOME/.vim/bash_env.sh"
> endif
> endif
>
> If the vimrc determine that the process is PC vim:
>
> let cyghome='c:\cygwin64\home\'.$USERNAME
> let &shell='set HOME='.cyghome.'& c:\cygwin64\bin\bash.exe -i'
> if !exists("$BASH_ENV") || $BASH_ENV == ""
> if filereadable(cyghome . '\.vim\bash_env.sh')
> let $BASH_ENV = cyghome.'\.vim/bash_env.sh'
> endif
> endif
>
> Thanks alot!

That's great news! You're welcome.

Regards,
Gary

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