#!/usr/bin/env bash
# bpgallery.sh - builds a simple 'gallery' from a collection of images
-# Copyright (C) 2004 Brett Parker <iDunno@sommitrealweird.co.uk>
+# Copyright (C) 2004-2008 Brett Parker <iDunno@sommitrealweird.co.uk>
#
-# 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
+# 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
+# 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.
#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
set -f
-VERSION="1.1.2"
+VERSION="1.1.5"
function bpgallery_default_head() {
cat <<END
WCCOMMAND="$WCCOMMAND -l"
fi
+if [[ -z $MAXTHREADS ]]; then
+ # if there's more than 2G of memory, then do 4 threads, otherwise, just 1
+ __total_memory=$(free -t -g | sed -ne '2 { s#Mem:[[:space:]]*\([0-9]*\)[[:space:]]*.*$#\1#; p; }')
+ if [[ $__total_memory -ge 2 ]]; then
+ MAXTHREADS=4
+ else
+ MAXTHREADS=1
+ fi
+fi
+
if [[ -z $WIDTH ]]; then
WIDTH=100
fi
wantedheight=$2
dir=$3
filename=$4
+ if [ ! -e "$dir/$filename" ]; then
+ echo 0
+ return
+ fi
iconwidth=$($IDENTIFYCOMMAND -format "%wx%h" "$dir/$filename")
iconheight=${iconwidth//*x}
iconwidth=${iconwidth//x*}
$ECHOCOMMAND -n -e "\000"
fi
done | \
- $XARGSCOMMAND -0 --verbose --max-procs=4 -I {} $CONVERTTOOL -resize $1 '{}' $2/'{}' 2>&1 | \
+ $XARGSCOMMAND -0 --verbose --max-procs=$MAXTHREADS -I {} $CONVERTTOOL -resize $1 '{}' $2/'{}' 2>&1 | \
while read throwout; do
$ECHOCOMMAND done: $currentimage/$imagestoupdate images
currentimage=$((currentimage+1))