#!/bin/sh
#
#  folddb - Folds the WORKING database into the PRODUCTION database
#           and gets the databases ready for gatherd to serve.
#           Folds in the REFRESH database as well.
#
#  Usage: folddb [--save-space] GathererIDString directory
#
#  Darren Hardy, hardy@cs.colorado.edu, July 1994
#
#  $Id: folddb,v 1.25 1995/03/22 17:33:01 hardy Exp $
#
#  Copyright (c) 1994, 1995.  All rights reserved.
#  
#          Mic Bowman of Transarc Corporation.
#          Peter Danzig of the University of Southern California.
#          Darren R. Hardy of the University of Colorado at Boulder.
#          Udi Manber of the University of Arizona.
#          Michael F. Schwartz of the University of Colorado at Boulder. 
#          Duane Wessels of the University of Colorado at Boulder. 
#  
#  This copyright notice applies to all code in Harvest other than
#  subsystems developed elsewhere, which contain other copyright notices
#  in their source text.
#  
#  The Harvest software was developed by the Internet Research Task
#  Force Research Group on Resource Discovery (IRTF-RD).  The Harvest
#  software may be used for academic, research, government, and internal
#  business purposes without charge.  If you wish to sell or distribute
#  the Harvest software to commercial clients or partners, you must
#  license the software.  See
#  http://harvest.cs.colorado.edu/harvest/copyright,licensing.html#licensing.
#  
#  The Harvest software is provided ``as is'', without express or
#  implied warranty, and with no support nor obligation to assist in its
#  use, correction, modification or enhancement.  We assume no liability
#  with respect to the infringement of copyrights, trade secrets, or any
#  patents, and are not responsible for consequential damages.  Proper
#  use of the Harvest software is entirely the responsibility of the user.
#  
#  For those who are using Harvest for non-commercial purposes, you may
#  make derivative works, subject to the following constraints:
#  
#  - You must include the above copyright notice and these accompanying 
#    paragraphs in all forms of derivative works, and any documentation 
#    and other materials related to such distribution and use acknowledge 
#    that the software was developed at the above institutions.
#  
#  - You must notify IRTF-RD regarding your distribution of the 
#    derivative work.
#  
#  - You must clearly notify users that your are distributing a modified 
#    version and not the original Harvest software.
#  
#  - Any derivative product is also subject to the restrictions of the 
#    copyright, including distribution and use limitations.
#
workdb="WORKING.gdbm"
refreshdb="REFRESH.gdbm"
proddb="PRODUCTION.gdbm"
indexdb="INDEX.gdbm"
mddb="MD5.gdbm"
tmpdb="folddb.$$.gdbm"

if [ $# -ne 2 -a $# -ne 3 ]; then
	echo "Usage: folddb [--save-space] GathererIDString Directory"
	exit 1
fi

if [ "$1" = "--save-space" ]; then
	echo "folddb: Space efficiency enabled."
	saveflag="--save-space"
	gidstr="$2"
	dir="$3"
else
	saveflag=""
	gidstr="$1"
	dir="$2"
fi


if [ ! -d "$dir" ]; then
	echo "folddb: $dir is not a directory"
	exit 1
fi
cd "$dir"
echo "folddb: Using given directory: $dir"

if [ ! -r "$workdb" ]; then
	echo "folddb: ERROR: $workdb is not present in the current directory."
	echo "folddb: Perhaps your Gatherer did not generate a database."
	exit 1
fi

echo "folddb: Cleaning up the gathered templates..."
chmod +w $workdb
cleandb $workdb
if [ -r "$refreshdb" ]; then
	chmod +w $refreshdb
	cleandb $refreshdb
fi

echo "folddb: Consolidating databases..."
if [ -r "$refreshdb" ]; then
	consoldb $saveflag $tmpdb $workdb $refreshdb $proddb
	rm -f $workdb $refreshdb
else
	consoldb $saveflag $tmpdb $workdb $proddb
	rm -f $workdb 
fi

echo "folddb: Building an index for the Gatherer..."
# the production database will be unavailable for a little bit
rm -f $proddb $indexdb $mddb
mkindex $tmpdb $indexdb $mddb
mv $tmpdb $proddb
chmod 444 $proddb $indexdb $mddb

echo "folddb: Building the gatherd cache..."
mkcompressed

echo "folddb: Generating statistics of the database..."
if [ -r "INFO.soif" ]; then
	rm -f INFO.soif
fi
gzip -dc All-Templates.gz | mkgathererstats.pl "$gidstr" > INFO.soif
chmod 444 INFO.soif

echo "folddb: Databases ready for export."
exit 0
