Re: [rdiff-backup-users] Some interesting questions about rdiff

[Eric Jensen]

Hi Salvador,

> My question is, is possible to add FileB to the last backup?
>
> I mean, is possible some like rdiff-backup --update --include  
> ~myFolder/FileB --exclude-regexp '.' myFolder backup
>
> Then, If i list buckup content at last backup time, It should show:
>
> myFolder
>
> FilaA
> FileB (added)
> FileC

Well, one thing to remember is that if you do several backups of the  
same directory to the same rdiff-backup repository, then the backup  
repository always shows the state of the source directory at the time  
of the most recent backup.  So in your example, all you would need to  
do to add in FileB is not to exclude it, i.e. to run rdiff-backup  
with no --exclude options at all.  Then FileA and FileC would stay  
there (since they are still in the source directory), and FileB would  
be added (since this time you haven't told rdiff-backup to exclude  
it).  So all you would need to do is

rdiff-backup  myFolder  backup

No explicit includes or excludes are needed, if all you want is for  
the backup repository to exactly mirror the source filesystem.  This  
doesn't cause rdiff-backup to do any extra work to keep FileA or  
FileC, since they were already there.  (It will check their  
modification times to make sure they haven't changed, but if they are  
the same, it won't re-copy those files.)

Hope this helps,

Eric