[mirror-admin] rsync filtering to reduce master mirror load

[Ján ONDREJ (SAL)]

> this is indeed an improvement, thanks.  However, the timestamp
> calculation isn't quite right unless your system clock is UTC. Care
> to finish that aspect? :-)

Thank you for confirmation. Can you check, if it's better this way?

LAST_UPDATE=~/.fedora.update

# mirrormanager_exclude /tmp/rh_exclude /linux/updates
mirrormanager_exclude() {
  if [ -f "$LAST_UPDATE" ]; then
    t0s="`TZ=UTC stat -c %y $LAST_UPDATE | sed 's/ .0000$//g'`"
    t0=`date -d "$t0s" +%s`
  else  
    t0=0
  fi
  touch "$LAST_UPDATE"
  URL="https://admin.fedoraproject.org/mirrormanager/rsyncFilter"
  wget -q -O "$1" \
    "$URL?categories=Fedora%20Linux&since=$t0&stripprefix=pub/fedora$2"
}

It's curious, that using:
  TZ=UTC stat -c %Y $LAST_UPDATE
returns same number as without TZ=UTC. May be it will be better to accept
since in any format with timezone anc convert it in rsyncFilter script, for
example using:
  if not since.isdigit():
    since = time.mktime(time.strptime(since, "%Y-%m-%d %H:%M:%S.000000000 +0000"))

%z does not work in my python.

			SAL

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