Issue #9748 has been updated by Wei Hu.


Thanks,Nobuyoshi. I wondered that also. However, If so, the behavior is different from ruby 2.1.1's document. Also, :preserve=>true or :perserve=>false makes no difference. Is it expected?

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Bug #9748: FileUtils.cp always preserve the permission of original files
https://bugs.ruby-lang.org/issues/9748#change-46239

* Author: Wei Hu
* Status: Rejected
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
* ruby -v: ruby 2.1.1p76 (2014-02-24 revision 45161) [x86_64-linux]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
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`FileUtils.cp` will always preserve the permission of original files even if we passed `:preserve=>false`.

I think the problem is because:

~~~diff
<         File.open(dest, 'wb') do |f|
---
>         File.open(dest, 'wb', s.stat.mode) do |f|
~~~




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