[Scons-users] Maximum Path Length Limitation of Windows in scons

Fri Feb 5 14:18:22 EST 2016

Sally,

If you're on clearcase can you create a symlink to skip much of the path?

-Bill

On Fri, Feb 5, 2016 at 11:16 AM, Sally Arias <troy57 at gmail.com> wrote:

> Hi,
>
> Thank you for looking into this. I'll file a bug. We use a drive for
> clearcase view and would like to avoid using it by "subst"  if possible.
> Meanwhile we can shorten root folder name.
>
> Thanks!
>
> On Fri, Feb 5, 2016 at 10:25 AM, Bill Deegan <bill at baddogconsulting.com>
> wrote:
>
>> Sally,
>>
>> Looks like a real bug. Could I ask you to file a bug with a small
>> testcase to reproduce the problem?
>> In the meantime, you may be able to work around your issue using windows
>> "subst" command:
>> See here:
>>
>> http://superuser.com/questions/109407/how-do-you-mount-a-directory-as-a-drive-in-windows-7
>>
>> -Bill
>>
>> On Fri, Feb 5, 2016 at 9:17 AM, Plunket, Tom <
>> tom.plunket at aristocrat-inc.com> wrote:
>>
>>> The fact that many of the internal SCons functions use 'str()' to
>>> convert filenames will also trip up anyone who needs to use characters
>>> outside of the latin-1 character set.
>>>
>>> I'd love to work on this but SCons is huge and I don't have a good
>>> handle on where to start. I have got the file-names.py test working, for
>>> all legal ASCII Windows filename characters except $ and #. (Escaping the
>>> characters does not help but I don't remember the specifics of the errors.)
>>>
>>> For more information on my struggles see my post to this group on 26 Jan
>>> at 19:33 UTC+8 with the subject "Filename characters outside of latin-1".
>>>
>>> -----Original Message-----
>>> From: Scons-users [mailto:scons-users-bounces at scons.org] On Behalf Of
>>> Michael Schlenker
>>> Sent: Friday, February 05, 2016 2:11 AM
>>> To: SCons users mailing list <scons-users at scons.org>
>>> Subject: Re: [Scons-users] Maximum Path Length Limitation of Windows in
>>> scons
>>>
>>> The issue you might see is that the '\\?\' Prefix ONLY works for the
>>> unicode version of the Windows APIs. Python 2.x uses a mix of Unicode and
>>> ANSI APIs internally, depending on what you pass to the functions.
>>>
>>> The listdir() call uses a str() as can be seen from the TypeError.
>>>
>>> So for Python 2 one would need to make sure all names are unicode when
>>> entering the OS layer. Not sure if SCons does that somewhere, probably not.
>>>
>>> Michael
>>>
>>> Am 05.02.2016 um 03:08 schrieb Sally Arias:
>>> > Hi,
>>> >
>>> > I have a very long path name that exceeds windows maximum path length
>>> > limitation that is 260. It does not work as it is.
>>> >
>>> > Workaround for Maximum Path Length Limitation:
>>> > https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs
>>> > .85).aspx
>>> >
>>> > Adding "\\?\" prefix fixes this issue on python but not on scons.
>>> >
>>> > For example,
>>> >
>>> > os.path.exists(u"\\\\?\\C:\\longpath.....")  and
>>> > os.path.listdir(u"\\\\?\\C:\\longdir.....") work.
>>> > env.Install(u"\\\\?\\C:\\longpath.....", u"\\\\?\\C:\\longpath.....")
>>> > does not work. It does not do anything.
>>> >
>>> > Withou this prefix, scons generates Type Error.
>>> > env.Install("C:\\long_path.....", "C:\\long_path.....") TypeError :
>>> > listdir() argument 1 must be (buffer overflow), not str
>>> >
>>> > Are there any workarounds for this? Does scons support long path that
>>> > exceeds windows maximum path length limitation? I'm using scons 2.2.0.
>>> > Should I upgrade scons version?
>>> >
>>> >
>>> >
>>> >
>>> > _______________________________________________
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