#! /bin/sh
#
# Copyright (c) 1997,2003 Silicon Graphics, Inc.  All Rights Reserved.
# Copyright (c) 2022 Ken McDonell.  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.
# 
# Install the overhead PMDA and/or PMNS
#

. $PCP_DIR/etc/pcp.env
. $PCP_SHARE_DIR/lib/pmdaproc.sh

iam=overhead

# Do it
#
pmdaSetup

# controls for installation procedures
#
daemon_opt=true		# must install as daemon
dso_opt=false
pipe_opt=true		# force pipe IPC
socket_opt=false
check_delay=2		# give the PMDA a chance to set itself up

# be careful that mortals cannot write any configuration files, as
# these would present a security problem
#
umask 022


# PMDA variables
#
config="$PCP_SYSCONF_DIR/overhead/conf.d"
refresh=60

_quit()
{
    status=$1
    exit
}

do_debug=false

_parsedefaults()
{
    echo "Extracting options from current installation ..."
    while getopts R:d:l:c: c
    do
    	case $c in
	    \?)		echo "Warning: Unrecognized option in $PCP_PMCDCONF_PATH"
			echo "         Remove line for the $iam PMDA in $PCP_PMCDCONF_PATH and re-run ./Install"
	    		_quit 2;;
	    c )		config=$OPTARG;;
	    R )		refresh=$OPTARG;;
	    * )		;;
	esac
    done
}

# set options from $PCP_PMCDCONF_PATH, if possible
#
ans=`$PCP_AWK_PROG <$PCP_PMCDCONF_PATH '
$1 == "'$iam'"	{ printf "%s",$6
	      for (i=7;i<=NF;i++) printf " %s",$i
	      print ""
	    }'`
if [ ! -z "$ans" ]
then
    _parsedefaults $ans
fi

echo "Resource consumption is evaluated once once per \"refresh\" time."
$PCP_ECHO_PROG $PCP_ECHO_N "Enter the refresh time in seconds [$refresh] ""$PCP_ECHO_C"
read ans
if  [ ! -z "$ans" ]
then
    refresh=$ans
fi
args="-R $refresh"

# go figure out which configuration file to use ...
# we can't use pmdaChooseConfigFile here because the user can
# specify an existing file or an existing directory ...
#
echo
while true
do
    $PCP_ECHO_PROG $PCP_ECHO_N "Configuration file or directory? [$config] ""$PCP_ECHO_C"
    read ans
    if  [ ! -z "$ans" ]
    then
	if [ -f "$ans" -o -d "$ans" ]
	then
	    config="$ans"
	    break
	else
	    echo "Error: $ans must be an existing file or directory"
	fi
    else
	break
    fi
done
args="$args -c $config"

pmdaInstall

_quit 0