Re: Minimal Rsync Idea

[Martin Zobel-Helas <zobel@ftbfs.de>]

Hi, 

On Wed Oct 03, 2007 at 18:40:16 -0400, David Bartley wrote:
> I've augmented the anonftpsync script so that a minimal rsync is done on 
> the project/trace/ directory to see if a "real" rsync is needed. The 
> relevant addition is:
> 
> # check if we need to sync
> if [[ "$TRACE_HOST" != "" ]]; then
>    TRACE_FILE=$TO/project/trace/${TRACE_HOST}
>    TRACE_PRE_DATE=`ls -al $TRACE_FILE`
>    rsync --times --verbose \
>        $RSYNC_HOST::$RSYNC_DIR/project/trace/ \
>        $TO/project/trace/ >> $LOGFILE 2>&1
>    TRACE_POST_DATE=`ls -al $TRACE_FILE`
>    if [ "$TRACE_PRE_DATE" = "$TRACE_POST_DATE" ]; then
>        LANG=C date -u > "${TO}/project/trace/${HOSTNAME}"
>        echo 'Trace file for' $RSYNC_HOST::$RSYNC_DIR \
>            'unchanged, not rsyncing.' >> $LOGFILE
>        exit 0
>    fi
> fi
> 
> I've added this right before the first rsync. TRACE_HOST should be set 
> to ftp-master.debian.org for the Debian repository. This seems like a 
> reasonable alternative to push mirroring and this check has minimal 
> impact on the remote server.

That is only needed for mirrors which aren't pushed. Mirrors that are
pushed will only get pushed, if something changed on
ftp-master.debian.org.

Greetings
Martin

-- 
[root@debian /root]# man real-life
No manual entry for real-life