From: djberg96@...
Date: 2015-02-16T20:05:08+00:00
Subject: [ruby-core:68129] [Ruby trunk - Feature #4712] File.writable?	inaccurate in windows

Issue #4712 has been updated by Daniel Berger.


Use win32-file if you want a working File.writable? on Windows.

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Feature #4712: File.writable? inaccurate in windows
https://bugs.ruby-lang.org/issues/4712#change-51513

* Author: Roger Pack
* Status: Feedback
* Priority: Normal
* Assignee: 
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Hello. Here's what happens (when a user doesn't have admin privileges in windows 7):

c:\Program Files (x86)\NetBeans 6.9.1>irb --simple-prompt
>> File.writable?('.')
=> true
>> File.writable?('./uninstall.exe')
=> true
>> File.open('./uninstall.exe', 'wb')
Errno::EACCES: Permission denied - ./uninstall.exe
        from (irb):4:in `initialize'
        from (irb):4:in `open'
        from (irb):4

So I think writable was returning true in error here.
Cheers!
-r



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