#!/bin/sh
#
# Common pre-test checking for weblog and webping PCP QA tests
#
# Copyright (c) 1997-2002 Silicon Graphics, Inc.  All Rights Reserved.
#

. ./localconfig
. ./common.product

_installed()
{
    versions $1 | fgrep $1 > /dev/null 2>&1
}

_remove_pmda()
{
    ( cd $PCP_PMDAS_DIR/$1 ; $sudo ./Remove ) 2>&1
    _pmda_installed $1 $PCP_PMCDCONF_PATH \
        && _fail "couldn't install $1 pmda"
}

_install_pmda()
{
    ( cd $PCP_PMDAS_DIR/$1 ; $sudo ./Install < /dev/null ) 2>&1
    _pmda_installed $1 $PCP_PMCDCONF_PATH \
        || _fail "couldn't install $1 pmda"
}

_save_state()
{
    $sudo cp $PCP_PMCDCONF_PATH $PCP_PMCDCONF_PATH.$seq \
        || _fail "couldn't save pmcd.conf"
        
    if [ -f $PCP_VAR_DIR/config/web/webping.conf ]
    then
        $sudo cp $PCP_VAR_DIR/config/web/webping.conf $PCP_VAR_DIR/config/web/webping.conf.$seq \
            || _fail "couldn't save webping.conf"
    fi
    
    if [ -f $PCP_VAR_DIR/config/web/webdefaults ]
    then
        $sudo cp $PCP_VAR_DIR/config/web/webdefaults $PCP_VAR_DIR/config/web/webdefaults.$seq \
            || _fail "couldn't save webdefaults"
    fi
}

_pmda_installed()
{
    grep "^$1" "$2" >/dev/null
}

_restore_state()
{
    if [ -f $PCP_PMCDCONF_PATH.$seq ] 
    then

        # reset pmda installation state   
        for pmda in weblog webping
        do
            if _pmda_installed $pmda $PCP_PMCDCONF_PATH.$seq
            then
                _pmda_installed $pmda $PCP_PMCDCONF_PATH \
                    || _install_pmda $pmda > /dev/null
            else
                _pmda_installed $pmda $PCP_PMCDCONF_PATH \
                    && _remove_pmda $pmda > /dev/null
            fi
        done

        # copy back saved configuration files
        [ -f $PCP_PMCDCONF_PATH.$seq ] \
            && $sudo mv $PCP_PMCDCONF_PATH.$seq $PCP_PMCDCONF_PATH
            
        [ -f $PCP_VAR_DIR/config/web/webping.conf.$seq ] \
            && $sudo mv $PCP_VAR_DIR/config/web/webping.conf.$seq $PCP_VAR_DIR/config/web/webping.conf

        [ -f $PCP_VAR_DIR/config/web/webdefaults.$seq ] \
            && $sudo mv $PCP_VAR_DIR/config/web/webdefaults.$seq $PCP_VAR_DIR/config/web/webdefaults

        # restart pmcd to pick up new configuration
        $sudo $PCP_BINADM_DIR/pmsignal -a -s HUP pmcd
        _wait_for_pmcd
    fi

}

_pmget()
{
    pminfo -f $1 | $PCP_AWK_PROG '/^ *value/ { print $2 }' \
        || _fail "Couldn't get value for $1"
}

_pmcount()
{
    pminfo $1 | grep -c .
}

_require_pmda()
{    
    _pmda_installed $1 $PCP_PMCDCONF_PATH \
        || _install_pmda $1 > /dev/null
}

##############################################################################

unset ROOT