#! /bin/sh

set -e


cd "/$1"

LAST=$(ls -t | grep -m 1 -P '^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}$' || echo .)


TIME=$(date +"%F %T")
mkdir "/$1/$TIME"


for DIR in $(grep -v "^#" backup.dirs)
do
    EXCLUDE="/$1/$DIR.exclude"
    [ -f "$EXCLUDE" ]  ||  touch "$EXCLUDE"

    rsync \
        --recursive \
        --delete \
        --delete-excluded \
        --archive \
        --acls \
        --hard-links \
        --xattrs \
        --numeric-ids \
        --sparse \
        --bwlimit=10000 \
        --exclude-from="$EXCLUDE" \
        --link-dest="/$1/$LAST" \
        --verbose \
        "$2//$DIR" "/$1/$TIME" \
        > "/$1/$TIME/$DIR.log" 2>&1 || :
done


find "/$1" -maxdepth 1 -name "????-??-?? ??:??:??" -type d -ctime +30 | sort | head -n -7 | perl -lne 'print quotemeta' | xargs rm -rf