Interaction with non-cygwin programs

Brian Inglis
Sat Oct 24 19:35:23 GMT 2020

On 2020-10-24 13:11, Federico Kircheis via Cygwin wrote:
> On 10/24/20 8:10 PM, Brian Inglis wrote:
>> On 2020-10-24 09:04, Federico Kircheis via Cygwin wrote:
>>> I've lately updated Windows to the latest version, and cygwin too (I had
>>> something previous to 3.0).
>>> I've read that interaction with non-cygwin programs should be better because of
>>> the console-helper.
>>> But in my daily usage the integration is worse, programs like tmux or even less
>>> seems to have more issues than before.
>>> For example
>>>    /cygdrive/c/Program\ Files/TortoiseSVN/bin/svn log | less
>>> used to work correctly.
>>> Currently if I press arrow down or up less does not scroll up or down anymore
>>> and "ESC[" appears briefly at the top-left of the console.
>>> Of course i could install subversion inside cygwin, as
>>> svn log | less
>>> works without issues, but it's just an example.
>>> git, adb, and other programs trigger the same behavior.
>>> Also less is not the only program, tmux for example has similar issues.
>>> I believe the underlying issue is console-helper but I'm not sure how I could
>>> test it, as I did, for example, not find how I could disable it, or if the issue
>>> is already known.
>>> I'm able to reproduce the issue on a clean machine, so it should not be a
>>> configuration issue on my side.
>> I think setting CYGWIN=disable_pcon in your user or system environment should
>> disable it: search for that setting for more information.
> Thank you, setting CYGWIN to disable_pcon as environment variable did the trick
> with, I'll observe in the next days if all my issues are really gone.
> Unfortunately it seems that it is only possible to set this variable globally,
> correct?
> It is not possible, for example, to set it from bash only for some processes.
> AFAIK I cannot have both
> /cygdrive/c/Program\ Files/TortoiseSVN/bin/svn log | less
> and
> /cygdrive/c/Program\ Files/Python/Python39/python
> working correctly, as the first works with CYGWIN=disable_pcon and the second not.

I doubt it, but you could try if it could work using e.g.

$ alias wpython='CYGWIN="" /cygdrive/c/Program\ Files/Python/Python39/python'
$ wpython ...

Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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