At certain conditions rsnapshot removes old backups without make new ones

[balodja]

Let's suppose the config file having these lines:

retain alpha 3
retain beta 2

And the full spectra of backups is present, i.e.:

# ls snapshot_root
snapshot_root/alpha.0
snapshot_root/alpha.1
snapshot_root/alpha.2
snapshot_root/beta.0
snapshot_root/beta.1

Now let's do the rsnapshot beta, so rsnapshot removes the snapshot_root/beta.1, moves snapshot_root/beta.0 to snapshot_root/beta.1, and moves the snapshot_root/alpha.2 to snapshot_root/beta.0. So far, so good. The backups directory at this point is the following:

# ls snapshot_root
snapshot_root/alpha.0
snapshot_root/alpha.1
snapshot_root/beta.0
snapshot_root/beta.1

So if we now repeat the rsnapshot beta command, then rsnapshot does the same except from moving snapshot_root/alpha.2 to snapshot_root/beta.0. It complains about the absence of snapshot_root/alpha.2, but nevertheless moves snapshot_root/beta.0 without leaving any substitution for it. So backups directory turns out to be this:

# ls snapshot_root
snapshot_root/alpha.0
snapshot_root/alpha.1
snapshot_root/beta.1

This state seems to be faulty. I understand that repeating rsnapshot beta is not the intended use of rsnapshot, but IMHO it should not corrupt the backups.

[bebehei]

Thank you for the bug report. 100% reproducible. I will care about.

[iamdevnull]

Any updates here ?

[saas2813]

Seems like this is related to issue #34