Bug #7821: FileUtils.mkdir_p fails on Windows Unicode paths (\\?\UNC\) if dir already exists

• Status: Rejected
• Assignee: usa (Usaku NAKAMURA)
• Target version: 2.6
• ruby -v: ruby 1.9.3p362 (2012-12-25) [i386-mingw32]

[shyxormz (Patrick Pokatilo)]

Code:
FileUtils.mkdir_p "//?/C:/test"
FileUtils.mkdir_p "//?/C:/test"

What I expected:
Ruby will create directory C:\test on the first call and nothing on the second

What happened on the second call:
Errno::EACCESS: Permission denied - \?\C:
from C:/ruby/1.9.3-p362/lib/ruby/1.9.1/fileutils.rb:247:in mkdir' from C:/ruby/1.9.3-p362/lib/ruby/1.9.1/fileutils.rb:247:in fu_mkdir'
from C:/ruby/1.9.3-p362/lib/ruby/1.9.1/fileutils.rb:221:in block (2 levels) in mkdir_p' from C:/ruby/1.9.3-p362/lib/ruby/1.9.1/fileutils.rb:219:in reverse_each'
from C:/ruby/1.9.3-p362/lib/ruby/1.9.1/fileutils.rb:219:in block in mkdir_p' from C:/ruby/1.9.3-p362/lib/ruby/1.9.1/fileutils.rb:205:in each'
from C:/ruby/1.9.3-p362/lib/ruby/1.9.1/fileutils.rb:205:in mkdir_p' from C:/ruby/1.9.3-p362/lib/ruby/1.9.1/fileutils.rb:247:in mkdir'
from C:/ruby/1.9.3-p362/lib/ruby/1.9.1/fileutils.rb:247:in `mkdir'

[usa (Usaku NAKAMURA)]

• Status changed from Open to Assigned
• Assignee set to usa (Usaku NAKAMURA)
• Target version set to 2.0.0

[mame (Yusuke Endoh)]

Usa-san, how significant is this issue?

--
Yusuke Endoh [e-mail]

[mame (Yusuke Endoh)]

• Target version changed from 2.0.0 to 2.6

Looks not so critical.

--
Yusuke Endoh [e-mail]

[elovelan (Eric Loveland)]

This is actually due to a bug in File.directory?

File.directory?("\\\\?\\C:")

returns false. New bug for this?

[usa (Usaku NAKAMURA)]

The path with "\?" must be fullpath.
It's the spec of Windows.

[usa (Usaku NAKAMURA)]

• Related to Bug #7822: Dir.mkdir can't handle long Windows Unicode paths (\\?\UNC\) added

[usa (Usaku NAKAMURA)]

• Status changed from Assigned to Rejected

See #7822.