zeek/aux/broctl/bin/create-link-for-log.in

#! /usr/bin/env bash
#
# create-link-for <file-name>
#
# Creates a link from `pwd`/$1 into the current archive directory.

if [ ! -e .manager -a ! -e .standalone ]; then
   # We only create links on the manager/standalone.
   exit 0
fi   

if [ -e .checking ]; then
   # Just checking configuration, don't create links.
   exit 0
fi   

if [ ! -f $1 ]; then
   # Doesn't exist. 
   exit 0
fi   

echo $1 | grep -q '^\.' 

if [ $? == 0 ]; then
   # Don't link internal files.
   exit 0
fi

date=`date +%Y-%m-%d-%H-%M-%S`
link=`${makearchivename} $1 $date`

echo $link | grep -q '^/' 

if [ $? != 0 ]; then
    link="${logdir}/$link"
fi

dest_dir=`dirname $link`
mkdir -p $dest_dir # Makes sure all parent directories exist. 

if [ -e $link ]; then
   if [ ! -L $link ]; then
       # Exists, but isn't a link. Don't touch.
       exit 0
   fi
   
   # Link exists already for some reason, remove it. 
   rm -f $link
fi

# Remove last link we did for this file.
if [ -e .link.$1 ]; then
    rm -f `cat .link.$1 | tail -1`
fi    

# Do the link.
ln -s `pwd`/$1 $link

# Record the link.
echo $link >.link.$1