#!/bin/bash

cleanup() {

# $1 ... full path to data directory of wiki
# $2 ... number of days after which old files are to be removed

# purge files older than $2 days from the attic (old revisions)
find "$1"/attic/ -type f -mtime +$2 -print0 | xargs -0r rm -f

# remove stale lock files (files which are 1-2 days old)
find "$1"/locks/ -name '*.lock' -type f -mtime +1 -print0 | xargs -0r rm -f

# remove empty directories
find "$1"/{attic,cache,index,locks,media,meta,pages,tmp}/ \
-mindepth 1 -type d -empty -print0 | xargs -0r rmdir

# remove files older than $2 days from the cache
find "$1"/cache/?/ -type f -mtime +$2 -print0 | xargs -0r rm -f
}