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## Created 7/14/2006 by Tom Whipple <tom.whipple@intel.com>
## create a globally unique identifier (GUID)
## note that this is LIKELY to be unique, but not 100% guaranteed.
get_guid() {
prefix=$1
now=`date '+%F-%H%M%S.%N'`
GUID="$prefix$now-$RANDOM"
}
get_tmpsubdir() {
if [ ! -z "$1" ] ; then
tmp="$1"
else
tmp=${TMPDIR-/tmp}
fi
if [ -z "$GUID" ] ; then
get_guid
fi
TMPSUBDIR="$tmp/$GUID-$$"
(umask 000 && mkdir -p $TMPSUBDIR) || {
echo "Could not create temporary directory!" >&2
exit 255
}
}
get_shortid() {
seqfile=$1
today=`date '+%m-%d'`
if [ -f "$seqfile" ] ; then
seqdate=`cat $seqfile | cut -d '+' -f 1 -`
if [ "$today" = "$seqdate" ] ; then
seq=$(( `cat $seqfile | cut -d '+' -f 2 -` + 1 ))
else
seq=1
fi
else
seq=1
fi
SHORTID="$today+$seq"
echo "$SHORTID" > "$seqfile"
}
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