Remove unneeded historical files
Project description
You may have backups.
Every day, your precious stuff is saved in a safe place.
But you may have too much of that…
This script will select for you what files to drop, based on a retention policy such that as files get older you can keep less of them. The default policy will keep all the files in the last two weeks, a file every week for the last three months, a file every month for the last year, a file every year forever.
The script takes in input the existing files on command line and by default will print on stdout the files to delete. You can use a chain of commands such as:
ls | xargs weeder | xargs rm
to run in a cron job every day to keep your backup directories light.
Our glorious help
Running weeder -h you might be told:
usage: weeder [-h] [-p AGE:DIST [AGE:DIST ...]] [-f REGEX] [-r YYYY-MM-DD]
[--print-keepers | --print-goners] [-q | -v]
[FILE [FILE ...]]
positional arguments:
FILE the files to weed
optional arguments:
-h, --help show this help message and exit
-p AGE:DIST [AGE:DIST ...], --policy AGE:DIST [AGE:DIST ...]
state that, of every file older than AGE days, we want
to keep at least one every DIST days
[default: 14:7 84:28 364:364]
-f REGEX, --format REGEX
the pattern to extract a date from a file name
[default: (\d{4})-(\d{2})-(\d{2})]
-r YYYY-MM-DD, --refdate YYYY-MM-DD
reference date to establish retention [default: today]
--print-keepers print the files to keep
--print-goners print the files to delete [default]
-q, --quiet talk less
-v, --verbose talk more
but who knows, really.
Running tests
You can run:
python3 setup.py test
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