Re: Job control: process running from pipe doesn't get focus

[Chet Ramey]

On 12/15/23 12:28 PM, Maksym Telychko wrote:

Bash Version: 5.2
Patch Level: 21
Release Status: release

Description:
        Process does not become foreground when run from a pipe.

Repeat-By:
     Conditions are very special, and I am not sure who in the chain is cause 
of bug.

     In short the bug in the following line, but it should executed not from a 
running terminal emulator:
         uxterm -e bash -c 'echo /etc/fstab | { FILE="$(cat)" ; sudoedit 
"$FILE" ; }'
     It line of script must be run automatically from the WM.

     The chain to reproduce:

     | i3 wm   | --> | alacritty |  -> |                     |
     | weston  |     |           |     |                     |

     swaywm config file:
         exec_always uxterm -e bash -c 'echo /etc/fstab | { FILE="$(cat)" ; sudoedit 
"$FILE" ; }'

     If sudoedit running not from a pipe, it works good. Some of terminal 
emulators do not reproduces
     the problem, such as `foot` or `xfce4-terminal`.

     The result of the chain is an editor isn't gain a focus and I cant type 
anything.

     Again, I'm not sure that is definetely bash, but could you please check 
that. Thank you.

| sway wm | | uxterm | | bash ... sudoedit |

You might start by running a system call tracer like strace against the
sudoedit process or the bash process that's calling it and seeing what
they're doing.


--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    c...@case.edu    http://tiswww.cwru.edu/~chet/

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