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Add option to sort backup directories based on modification time.

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By default, ccollect.sh sorts backup directories based on last change
time (ctime).  This adds the option to sort based on modification
time (mtime).

I have updated doc/ccollect.text but it needs some work to simplify
and explain the issue.
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jll2 2009-06-25 20:35:13 -07:00
commit 010449bafa
2 changed files with 21 additions and 4 deletions
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doc/ccollect.text
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@ -360,6 +360,7 @@ Additionally a source may have the following files:
- `delete_incomplete` delete incomplete backups
- `remote_host` host to backup to
- `rsync_failure_codes` list of rsync exit codes that indicate complete failure
- `mtime` Sort backup directories based on their modification time
Example:
@ -584,6 +585,18 @@ be left in the destination directory indicating failure of this backup. If
you have enabled delete_incomplete, then this backup will be deleted during
the next ccollect run on the same interval.
mtime
^^^^^
By default, ccollect.sh chooses the most recent backup directory for cloning or
the oldest for deletion based on the directory's last change time (ctime).
With this option, the sorting is done based on modification time (mtime). With
this version of ccollect.sh, the ctime and mtime of your backups will normally
be the same and this option has no effect. However, if you, for example, move
your backups to another hard disk using cp -a or rsync -a, you should use this
option because the ctimes are not preserved during such operations.
If you have any backups in your repository made with ccollect version 0.7.1 or
earlier, do not use this option and do not move your repository.
Hints
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