#!/bin/sh

#
# beagle-crawl-system
#
# Copyright (C) 2005 Novell, Inc.
#

#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#

umask 022

DEBUG=0

if [ ! -x /usr/sbin/beagle-build-index ] ; then
    if [ "$DEBUG" = "1" ]; then
	echo "$0: /usr/sbin/beagle-build-index not found.  Exiting."
    fi
    exit 1
fi

if [ "$1" = "--list" ]; then
    grep -H CRAWL_ENABLED /etc/beagle/crawl-rules/crawl-*
    exit 0
fi

CRAWL_USER=beagleindex

export TMPDIR=/tmp

# Mono requires a writable wapi directory
MONO_SHARED_DIR=`mktemp -d -p $TMPDIR .beagleindexwapi.XXXXXXXXXX`|| ( echo "$0: Can't create wapi directory!" ; exit 1 )
chown $CRAWL_USER $MONO_SHARED_DIR

if [ "$DEBUG" = "1" ]; then
    echo "$0: Processing files in /etc/beagle/crawl-rules/..."
fi

for crawl_file in /etc/beagle/crawl-rules/crawl-*; do
    unset CRAWL_ENABLED CRAWL_DISABLE_FILTERING CRAWL_DISABLE_DIRECTORIES CRAWL_DISABLE_ON_BATTERY CRAWL_RECURSIVE CRAWL_CACHE_TEXT CRAWL_ALLOW_PATTERNS CRAWL_DENY_PATTERNS CRAWL_PATHS CRAWL_INDEX_NAME CRAWL_REMOVE_DELETED_FILES

    if [ -f $crawl_file ] ; then
	if [ "$DEBUG" = "1" ]; then
	    echo "$0: Processing $crawl_file..."
	fi

	. $crawl_file

	if [ "$1" != "" ]; then
	    CRAWL_FILE_NAME=`basename $crawl_file`
	    [ "$1" = "$CRAWL_FILE_NAME" ] && CRAWL_ENABLED="yes" || CRAWL_ENABLED="no"
	fi

	if [ -n "$CRAWL_ENABLED" -a "$CRAWL_ENABLED" = "yes" ] ; then

	    OPTIONS="`test -n "$CRAWL_DISABLE_FILTERING" -a "$CRAWL_DISABLE_FILTERING" = "yes" && \
                     echo --disable-filtering`"

	    OPTIONS="$OPTIONS `test -n "$CRAWL_DISABLE_DIRECTORIES" -a "$CRAWL_DISABLE_DIRECTORIES" = "yes" && \
                     echo --disable-directories`"

	    OPTIONS="$OPTIONS `test -n "$CRAWL_DISABLE_ON_BATTERY" -a "$CRAWL_DISABLE_ON_BATTERY" = "yes" && \
                     echo --disable-on-battery`"

	    OPTIONS="$OPTIONS `test -n "$CRAWL_RECURSIVE" -a "$CRAWL_RECURSIVE" = "yes" && \
                     echo --recursive`"

	    OPTIONS="$OPTIONS `test -n "$CRAWL_CACHE_TEXT" -a "$CRAWL_CACHE_TEXT" = "yes" && \
                     echo --enable-text-cache`"

	    OPTIONS="$OPTIONS `test -n "$CRAWL_ALLOW_PATTERNS" && \
                     echo --allow-pattern $CRAWL_ALLOW_PATTERNS`"

	    OPTIONS="$OPTIONS `test -n "$CRAWL_DENY_PATTERNS" && \
                     echo --deny-pattern $CRAWL_DENY_PATTERNS`"
	    
	    OPTIONS="$OPTIONS `test -n "$CRAWL_REMOVE_DELETED_FILES" && \
                     echo --enable-deletion`"
	    
#	    IONICE=`which ionice 2>/dev/null`
#            if [ -n "$IONICE" ]; then
#                IONICE="$IONICE -c 3"
#            fi

	    COMMAND="$IONICE su -s /bin/bash $CRAWL_USER -c \"MONO_SHARED_DIR=$MONO_SHARED_DIR /usr/sbin/beagle-build-index --target /var/cache/beagle/indexes/$CRAWL_INDEX_NAME $OPTIONS $CRAWL_PATHS\""
	    
	    if [ "$DEBUG" = "1" ]; then
		eval $COMMAND
	    else
		eval $COMMAND > /dev/null 2>&1
	    fi

	    if [ "$DEBUG" = "1" ]; then
		echo "$0: Finished processing $crawl_file."
	    fi
	else
	    if [ "$DEBUG" = "1" ]; then
		echo "$0: Crawling is disabled for $crawl_file.  Skipping"
	    fi
	fi
    fi
done

# delete wapi directory
rm -rf $MONO_SHARED_DIR

exit 0