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

Fri Feb 5 14:16:05 EST 2016

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?
>> >
>> >
>> >
>> >
>> > _______________________________________________
>> > Scons-users mailing list
>> > Scons-users at scons.org
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>> >
>>
>> --
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