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Re: [Duplicity-talk] Which backups include a particular file?


From: edgar . soldin
Subject: Re: [Duplicity-talk] Which backups include a particular file?
Date: Mon, 13 Dec 2010 14:58:35 +0100
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7

On 13.12.2010 14:47, Kenneth Loafman wrote:
On Mon, Dec 13, 2010 at 7:13 AM,<address@hidden>  wrote:

On 13.12.2010 13:21, Kenneth Loafman wrote:

On Mon, Dec 13, 2010 at 4:43 AM,<address@hidden>   wrote:

  On 12.12.2010 17:23, Kenneth Loafman wrote:

  On Sun, Dec 12, 2010 at 9:50 AM, Tom Limoncelli<address@hidden>
wrote:

  Suppose I have daily backups for the last year. (Not that it should

matter, but assume "--full-if-older-than 3W" was used).

A user tells me, "I had a file called data/stuff.txt which existed for
about 10 days.  I don't remember which 10 days, but could you find it
and restore it?"

Obviously I can do "duplicity  collection-status" to see that backups
were done every day.  However, is there a way to see which of those
days the file he mentions existed?


  That's really not possible unless it was contained in a full backup.
'--list-current-files' in conjunction with '-t datetime' will give you
the
current list by datetime, but if the file was created and deleted during
the
three week window between backups, then it's gone.


  Didn't mterry add a patch that lists files even for older chains?

Yes, that was the -t option, but the incremental files for the previous

full backup are automatically removed as soon as a new full is made.

If incrementals depend on older full backups I reason full backups stay in
the repository? Even if I create a new chain (new full)? Right?


The older full backups are complete unto themselves.  Each incremental is
dependent on the full backup and potentially on an earlier incremental.


Let me give an example. E.g. I do weekly fulls and daily incrementals. The file 
needed existed during in the asterisk marked period.

full_01
incr_02
incr_03
incr_04*
incr_05*
incr_06*
incr_07
full_08
incr_09
incr_10
incr_11
today

Wouldn't a 'list-current-files 7D' list the file? If not, why?

ede















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