Backup changed data to remote Mercurial repositories -- /etc/cron.daily/push2mercurial skeleton.

push2mercurial.sh

#!/bin/sh

WEBAPP_BASEDIR="/home/webapp"
HGSERVER_URI="http://webserv1:VerySecretPassword@mercurial.example.ru:5000"

Push0() {
        local o="/tmp/$2.log"
        local e="/tmp/$2.err"
        (
           cd "$1"
           hg status | grep -q '' || return
           #echo "$1 updated"
           hg addremove
           hg commit -m "Periodic autocommit $(LANG=C date +%Y.%m.%d_%H:%M:%S)"
           hg push "$HGSERVER_URI/$2"
        ) >"$o" 2>"$e"
        test -s "$e" || { rm "$e"; return; }
        cat $o $e | mail -s "push2mercurial: $1 to $2 failed." admins
}

Push() { Push "$WEBAPP_BASEDIR/$1" "$2"; }

Push   avatars             webapp-avatars
Push   uploads             webapp-uploads

Push0  /etc                webserv1-etc