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Subject:	Re: Question about incorrect System path from cygpath with case-sensitivity enabled
From:	Bryan Henry <bryanhenry AT mac DOT com>
In-reply-to:	<20160107201938.GG20447@calimero.vinschen.de>
Date:	Sun, 10 Jan 2016 22:54:30 -0500
Cc:	corinna-cygwin AT cygwin DOT com
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References:	<B9C70902-5C7E-4AC6-A63A-583DCEC2771C AT mac DOT com> <1710491599 DOT 20160102183319 AT yandex DOT ru> <20160107201938 DOT GG20447 AT calimero DOT vinschen DOT de>
To:	cygwin AT cygwin DOT com
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Hi Corinna,

Sorry for the delay getting back to you. I tested out the cygpath binary from the latest snapshot and confirmed that it fixes my issue. Thank for you making the change!

[~/Downloads/cygwin-inst-20160109]$ cygpath -W -u
/C/Windows
[~/Downloads/cygwin-inst-20160109]$ cygpath-old -W -u
/C/WINDOWS

- Bryan

> On Jan 7, 2016, at 3:19:38 PM, Corinna Vinschen <corinna-cygwin AT cygwin DOT com> wrote:
> 
> On Jan  2 18:33, Andrey Repin wrote:
>> Greetings, Bryan Henry!
>> 
>>> I enabled (some time ago, not recently) case sensitivity on my Windows 8.1
>>> system by setting the registry key mentioned in the FAQ here:
>>> https://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-casesensitive
>> 
>>> Today, I updated Cygwin and noticed a message about a failed postinstall
>>> script at the end. Here's the excerpt from setup.log.full showing
>>> /etc/postinstall/base-files-mketc.sh exiting early:
>> 
>>> 2016/01/01 15:45:32 running: C:\cygwin\bin\bash.exe --norc --noprofile
>>> "/etc/postinstall/base-files-mketc.sh"
>>> Directory /C/WINDOWS/System32/drivers/etc does not exist; exiting
>>> If directory name is garbage you need to update your cygwin package
>>> 2016/01/01 15:45:32 abnormal exit: exit code=1
>> 
>>> Since this was an existing installation, that postinstall script failing
>>> isn't a big deal since the symlinks that it would normally create already
>>> exist, but I wanted to dig into why it's failing in the first place in case
>>> it is a symptom of something bigger. Taking a look at that script and trying
>>> "/usr/bin/cygpath -S -u" for myself, I see now why it failed:
>> 
>>> [~]$ cygpath -S -u
>>> /C/WINDOWS/System32
>>> [~]$ file `cygpath -S -u`
>>> /C/WINDOWS/System32: cannot open `/C/WINDOWS/System32' (No such file or directory)
>>> [~]$ file /C/Windows/System32
>>> /C/Windows/System32: directory
>> 
>>> I get similar results from "cygpath -W". It seems that cygpath has not
>>> picked up on the fact that the directory is really "Windows" and not
>>> "WINDOWS",
>> 
>> cygpath uses system calls to return the directories you're asking for.
> 
> ...and those system calls return information which does not honor
> case-sensitivity, unfortunately.
> 
>> If a system call return wrong case, cygpath can't do anything to amend it.
> 
> It can and it will, at least if the path is a local path.  I just
> applied a patch to cygpath to call another OS function to correct the
> case of the path returned by GetSystemDirectory and friends.
> 
>> You have to fix your system first, then it will just work.
> 
> This is nonsense.  It's not the user's fault that the OS returns paths
> without honoring the case.  Cygwin tries to support case-sensitivity
> (https://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-casesensitive)
> and so it makes a lot of sense if cygpath tries to return system paths
> using the correct case.
> 
> I just uploaded new developer snapshots to https://cygwin.com/snapshots/
> Please give cygpath from those snapshots a try.
> 
> 
> Thanks,
> Corinna
> 
> -- 
> Corinna Vinschen                  Please, send mails regarding Cygwin to
> Cygwin Maintainer                 cygwin AT cygwin DOT com
> Red Hat


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