[rancid] Re: Rancid Reports Changes in router.db when no changes have been made

[john heasley]

Thu, Nov 05, 2009 at 03:16:42PM -0700, Schmidt, Daniel:
> What is odd is that this only seems to do this when you rancid-run from
> the command line when the previous run was from Cron.  (or visa versa)
> Relevant code doesn't seem like much:
> 
> 182 cut -d: -f1,2 routers.db > routers.all.new
> 
> 189 perl -F: -ane '{($F[0] =~ tr at A-Z@a-z@,print "$F[0]:$F[1]\n")
> 190     if ($F[2] =~ /^up$/i);}' routers.db > routers.up.new
> 
> 192 diff -u -4 routers.up routers.up.new > /dev/null 2>&1; RUP=$?

diff is the typical problem here.  verify that the diff that you get
is one that supports these options expressed in this manner.  everywhere
but linux, diffs accepts -u4.

> 194 if [ $RALL -ne 0 -o $RDOWN -ne 0 -o $RUP -ne 0 ]
> 195 then
> 196     (
> 197         if [ $RUP -ne 0 ] ; then
> 198             if [ ! -s routers.up ] ; then
> 199                 echo Routers changed to up:
> 200                 sed -e 's/^/        /' routers.up.new
> 201                 echo
> 202             else
> 203                 WCUP=`comm -13 routers.up routers.up.new | wc -l | \
> 204                         sed -e 's/^ *\([^ ]*\)/\1/'`
> 205                 if [ $WCUP -gt 0 ] ; then
> 206                     echo Routers changed to up:
> 
> Term is set to network in rancid.conf, so I'm stumped as to how RUP or
> WCUP is nonzero on this.
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