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Date:	Sat, 8 Dec 2018 00:41:57 +0300
From:	Andrey Repin <anrdaemon AT yandex DOT ru>
Reply-To:	cygwin AT cygwin DOT com
Message-ID:	<199122924.20181208004157@yandex.ru>
To:	Thomas Wolff <towo AT towo DOT net>, cygwin AT cygwin DOT com
Subject:	Re: [ANNOUNCEMENT] Updated: mintty 2.9.5
In-Reply-To:	<2f3cf57e-0b44-8c4a-b075-24743e4443d2@towo.net>
References:	<announce DOT ba14b773-7e0a-32fd-7a01-4979c60eeb4c AT towo DOT net> <87woon9133 DOT fsf AT Rainer DOT invalid> <a753939f-9724-296a-8ec5-643cd09b4f93 AT towo DOT net> <87in06la12 DOT fsf AT Rainer DOT invalid> <94206790 DOT 20181207003223 AT yandex DOT ru> <2f3cf57e-0b44-8c4a-b075-24743e4443d2 AT towo DOT net>
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Greetings, Thomas Wolff!

> Am 06.12.2018 um 22:32 schrieb Andrey Repin:
>> Greetings, Achim Gratz!
>>
>>> a) Just warn about the missing PATH component without changing the PATH.
>>> b) Give the user an option to let the command run with a separate PATH.
>>> Indeed there might be other things that are missing in the environment,
>>> so instead of just fixing up PATH you might consider using a wrapper
>>> that the user can change.
>> This is an interesting point.
>> Probably letting the user specify custom $PATH for quick commands (and save
>> current %PATH% as $ORIGINAL_PATH) may be the best choice.
>> The default can be %Cygwin%\bin:%PATH% or %PATH%:%Cygwin%\bin, I'm not very
>> concerned as long as it's explicit and customizable.
> I didn't expect the setup of this specific feature to be so strongly 
> advocated :)
> In any case, things shouldn't become too complex. What I can image is an 
> option UserCommandsPATH
> with one optional placeholder %s which would be replaced with the 
> environment PATH;
> default /bin:%s, corresponding to current behaviour.

Using native paths and environment variable syntax, you can always use
ExpandEnvironmentString to get the %PATH% you need.
Cygwin DLL will then convert it to own version, avoiding you mangling it
yourself.
And I would strongly discourage from using placeholders familiar for you, but
unexpected by the end user and taken from entirely different area of knowledge.

BTW, Cygwin itself does it differently. %Cygwin%\bin is converted to /usr/bin.

>> If anybody need a wrapper, they may write and use it by themselves.
>>
>> (I already have one, written in TCC, working quite well.)
> Out of curiosity, what's TCC and what does your wrapper do?

This is an augmented CMD-like scripting platform.
https://jpsoft.com/products/tcc-cmd-prompt.html

Its "runtime" variant, TCC-RT, contains only scripting core, no interactive
functionality, and is distributed for free.

I attached the pair of scripts that I use to wrap .sh/.awk/.pl/etc. with.
In manual mode, I can use it to launch any script provided /usr/bin/env can
deal with it, as it's basically a wrapper around /usr/bin/env, which ensures
that the first argument (the script name) has Cygwin notation.
The fix-path thing is necessary to tweak startup behavior. Normal operation
environment don't have /usr/local/bin in %PATH%, as that hides some
Cygwin-specific scripts which have native counterparts in a different place.

P.S.
The %[variable] notation I use is not strictly necessary.
%var or %var% works equally well, but may be disabled in options.
I'm just playing on the safe side.


-- 
With best regards,
Andrey Repin
Saturday, December 8, 2018 0:16:49

Sorry for my terrible english...
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