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#!/bin/sh
# genext2fs wrapper calculating needed blocks/inodes values if not specified
export LC_ALL=C
CALC_BLOCKS=1
CALC_INODES=1
while getopts x:d:D:b:i:N:m:g:e:zfqUPhVv f
do
case $f in
b) CALC_BLOCKS=0 ;;
N) CALC_INODES=0 ;;
d) TARGET_DIR=$OPTARG ;;
esac
done
# calculate needed blocks
if [ $CALC_BLOCKS -eq 1 ];
then
BLOCKS=$(du -s -c -k $TARGET_DIR | grep total | sed -e "s/total//")
if [ $BLOCKS -ge 20000 ];
then
BLOCKS=$(expr $BLOCKS + 16384)
else
BLOCKS=$(expr $BLOCKS + 2400)
fi
set -- $@ -b $BLOCKS
fi
# calculate needed inodes
if [ $CALC_INODES -eq 1 ];
then
INODES=$(find $TARGET_DIR | wc -l)
INODES=$(expr $INODES + 400)
set -- $@ -N $INODES
fi
exec genext2fs $@
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