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Subject: |
RFC: cp --no-preserve=contents |
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Date: |
Mon, 28 Mar 2011 14:55:32 -0600 |
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Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.15) Gecko/20110307 Fedora/3.1.9-0.39.b3pre.fc14 Lightning/1.0b3pre Mnenhy/0.8.3 Thunderbird/3.1.9 |
cp --attributes-only is great for preserving all metadata attributes
without corrupting contents, but what if I want to preserve only some of
the metadata (for example, copying SELinux context but _not_ timestamps
or content)? It seems like --attributes-only would be a great synonym
for '--preserve=all --no-preserve=contents', and that by adding the
'contents' category to --preserve (and defaulting it to on unless turned
off explicitly), that you expose finer-grained tuning to what metadata
gets copied.
--
Eric Blake address@hidden +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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--- Begin Message ---
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Subject: |
Re: bug#8370: RFC: cp --no-preserve=contents |
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Date: |
Thu, 12 Apr 2012 08:39:31 -0600 |
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Mozilla/5.0 (X11; Linux x86_64; rv:11.0) Gecko/20120329 Thunderbird/11.0.1 |
On 04/12/2012 08:20 AM, Pádraig Brady wrote:
> On 04/12/2012 03:04 PM, Jim Meyering wrote:
>> Pádraig Brady wrote:
>> ...
>>> So thinking a bit more about this,
>>> and given the confusion expressed in the above bug report,
>>> perhaps it's best to change --attributes-only to
>>> _not_ truncate existing files?
>>>
>>> I think scripts relying on the truncation behavior
>>> of this relatively new feature would be very rare,
>>> and the non truncating behavior is more generally useful.
>>>
>>> Patch to implement this change is attached.
>>
>> Thanks for doing this.
>> I prefer the new non-truncating behavior, too.
>
> Cool.
>
> I'll push with your clean-ups later on.
> Eric is it OK to close this bug,
> or are there cases not handled yet?
> (I didn't fully understand your suggestion TBH).
Yes, I closed the bug now.
--
Eric Blake address@hidden +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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