Timestamp-pattern no such group

[Grounz]

Hi,

I want use timestamp-pattern option for extract timestamp from this above filename:

prometheus-grafana-production-09-04-2020.tar.gz

So i use this regex, that i have test on regex101.com :

r'''(?P<day>\d{2})-(?P<month>\d{2})-(?P<year>\d{4})'''

and their groups day, month and year are correcty captured in regex101.

So when i test on my backup server, rotate-backups says:

2020-04-09 16:14:22 host property_manager[26040] SPAM RotateBackups.timestamp_pattern reporting assigned or cached value (<_sre.SRE_Pattern object at 0x7f55def01df0>) ..
2020-04-09 16:14:22 host rotate_backups[26040] DEBUG Failed to match time stamp in filename: prometheus-grafana-production-09-04-2020.tar.gz
2020-04-09 16:14:22 host property_manager[26040] SPAM Location.ssh_alias reporting assigned or cached value (None) ..
2020-04-09 16:14:22 host property_manager[26040] SPAM Location.directory reporting assigned or cached value ('/home/backup/externalBackupTransfert/prometheus-grafana/production') ..
2020-04-09 16:14:22 host rotate_backups[26040] INFO No backups found in /home/backup/externalBackupTransfert/prometheus-grafana/production.

and in this directory i have a one file named; prometheus-grafana-production-09-04-2020.tar.gz

I don't understand for why this timestamp is not interpreted by rotate-backups, can you help me ?

[Ganfoud]

Hi
I have (I think) the same issue:

2020-04-10 09:57:44 athena rotate_backups.cli[14008] INFO Performing a dry run (because of -n option) ..
2020-04-10 09:57:44 athena rotate_backups.cli[14008] VERBOSE Rotation scheme defined on command line: {'daily': 7, 'weekly': 2, 'monthly': 2}
2020-04-10 09:57:44 athena rotate_backups.cli[14008] VERBOSE Selected 1 location based on command line arguments:
2020-04-10 09:57:44 athena rotate_backups.cli[14008] VERBOSE  1. /DiskStation/xxx/sites_web
2020-04-10 09:57:44 athena rotate_backups[14008] VERBOSE No configuration found for /DiskStation/xxx/sites_web.
2020-04-10 09:57:44 athena rotate_backups[14008] INFO Scanning /DiskStation/xxx/sites_web for backups ..
2020-04-10 09:57:44 athena rotate_backups[14008] VERBOSE Confirmed that location exists: /DiskStation/xxx/sites_web
2020-04-10 09:57:45 athena rotate_backups[14008] VERBOSE Confirmed that location is readable: /DiskStation/xxx/sites_web
Traceback (most recent call last):
  File "/usr/local/bin/rotate-backups", line 10, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.7/dist-packages/rotate_backups/cli.py", line 338, in main
    program.rotate_backups(location)
  File "/usr/local/lib/python3.7/dist-packages/rotate_backups/__init__.py", line 548, in rotate_backups
    sorted_backups = self.collect_backups(location)
  File "/usr/local/lib/python3.7/dist-packages/rotate_backups/__init__.py", line 656, in collect_backups
    timestamp=self.match_to_datetime(match),
  File "/usr/local/lib/python3.7/dist-packages/rotate_backups/__init__.py", line 681, in match_to_datetime
    value = match.group(component)
IndexError: no such group

the files in the directory are named with this template: backup-4.9.2020_19-30-12.tar.gz

[xolox]

Thanks for the bug report, this is fixed in release 8.1!

[Ganfoud]

Tested and approved, it works now, thanks for the update!