[ruby-core:35955] [Ruby 1.9 - Feature #2190][Assigned]FileUtils::chmod - allow symbolic mode

Issue #2190 has been updated by Motohiro KOSAKI.

Status changed from Open to Assigned
Assignee set to Motohiro KOSAKI

Hi

This request seems very reasonable to me. I'll review the patch later.
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Feature #2190: FileUtils::chmod - allow symbolic mode
http://redmine.ruby-lang.org/issues/2190

Author: Suraj Kurapati
Status: Assigned
Priority: Normal
Assignee: Motohiro KOSAKI
Category: lib
Target version: 1.9.x


 Hello,
 
 I request that FileUtils::chmod() and FileUtils::chmod_R() accept 
 symbolic modes, which are strings like "u+x,g-w,o=" (see "symbolic 
 mode" in `man chmod` for details), in addition to the numeric modes 
 they currently accept.
 
 If my request is fulfilled, the following would be equivalent:
 
   FileUtils::chmod(0712, "file.txt")
 
   FileUtils::chmod("u=rwx,g=x,o=w", "file.txt")
 
 In addition, symbolic modes would allow delta/patch changes:
 
   FileUtils::chmod("g+w", "file.txt")
 
 This is not so easy with numeric modes, because you must
 first read the current mode, apply your delta/patch mode
 using a bitwise OR operation, and finally apply the new
 numeric mode using FileUtils::chmod().
 
 Thanks for your consideration.


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