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#!/bin/sh
#
# Copyright (c) 1997-2001 Silicon Graphics, Inc. All Rights Reserved.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
#
# Add a subtree of new names into the namespace in the current directory
#
# source the PCP configuration environment variables
. $PCP_DIR/etc/pcp.env
umask 22 # anything else is pretty silly
exitsts=1
tmp=`mktemp -d $PCP_TMPFILE_DIR/pcp.XXXXXXXXX` || exit 1
prog=`basename $0`
trap "rm -rf $tmp; exit \$exitsts" 0 1 2 3 15
_usage()
{
echo "Usage: pmnsadd [-d] [-n namespace] file"
}
namespace=${PMNS_DEFAULT-$PCP_VAR_DIR/pmns/root}
dupok=""
while getopts dn:\? c
do
case $c
in
d) dupok="-d"
;;
n) namespace=$OPTARG
;;
\?) _usage
exitsts=0
exit
;;
esac
done
shift `expr $OPTIND - 1`
if [ $# -ne 1 ]
then
_usage
exit
fi
if [ ! -f $namespace ]
then
echo "$prog: cannot find PMNS file \"$root\""
exit
fi
if [ ! -w $namespace ]
then
echo "$prog: cannot open PMNS file \"$root\" for writing"
exit
fi
if [ ! -f "$1" ]
then
echo "$prog: cannot find input file \"$1\""
exit
fi
if grep '^root {' "$1" >/dev/null
then
# Special case ... if the PMDA only supplies metrics at the root of
# the PMNS, e.g. the MMV PMDA with all dynamic metrics, the input
# PMNS contains 'root {' already, so just use that without any need
# to construct the upper levels of the PMNS
#
cp "$1" $tmp/tmp
else
# Normal case ... find PMNS pathname for base of new subtree
# (subroot), construct upper levels of PMNS as required and hand-off
# to pmnsmerge
#
subroot=`$PCP_AWK_PROG <"$1" 'NF >= 2 && $2 == "{" { print $1 ; exit }'`
echo 'root {' >$tmp/tmp
path=""
for name in `echo "$subroot" | tr '.' ' '`
do
[ ! -z "$path" ] && echo "$path {" >>$tmp/tmp
echo " $name" >>$tmp/tmp
echo "}" >>$tmp/tmp
if [ -z "$path" ]
then
path="$name"
else
path="$path.$name"
fi
done
cat "$1" >>$tmp/tmp
fi
# try to preserve mode, owner and group for the new output files
#
rm -f $namespace.new
[ -f $namespace ] && cp -p $namespace $namespace.new
$PCP_BINADM_DIR/pmnsmerge -f $dupok $namespace $tmp/tmp $namespace.new
exitsts=$?
# from here on, ignore SIGINT, SIGHUP and SIGTERM to protect
# the integrity of the new ouput files
#
trap "" 1 2 15
if [ $exitsts = 0 ]
then
mv $namespace.new $namespace
else
echo "$prog: No changes have been made to the PMNS file \"$namespace\""
rm -f $namespace.new
fi
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