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

[Bill Deegan]

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
> > https://pairlist4.pair.net/mailman/listinfo/scons-users
> >
>
> --
> Michael Schlenker
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>
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