Gary Johnson wrote:
> I think this is a bug. In a bash shell on a Linux system, execute
> this:
>
> $ vim -N -u NONE <(ls)
>
> Then try to start a shell:
>
> :sh
>
> The command immediately returns.
>
> I discovered a work-around, but I don't know if it works generally.
> I mention it mainly to give more information to someone who might be
> able to fix the underlying problem.
>
> I created a wrapper for bash which I named mybash and put in my home
> directory:
>
> #!/bin/bash
> exec < /dev/tty
> exec /bin/bash "$@"
>
> If I then start vim like this:
>
> $ SHELL=$HOME/mybash vim -N -u NONE <(ls)
>
> and execute
>
> :sh
>
> it _does_ work.
>
> I don't know why vim should even be aware that its argument is the
> result of a process substitution. This might even be bug in bash.
>
> All versions of vim that I have tried exhibit the same behavior,
> from 8.0.1453 through 8.1.2231. I have tried bash versions
> 4.1.5(1), 4.3.48(1) and 4.4.19(1).
It looks like bash connects stdin to the file. This also fails:
:!sh
But this works:
:!sh </dev/tty
I would think this is a shell problem.
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/// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net \\\
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