#!/bin/bash
# Script to generate file system usage information files (.pkgsize)
# for use of the install-jds script to calculate the disk space
# requirements
if [ $# = 0 -o "x$1" = "x--help" -o "x$1" = "x-h" ]; then
echo "Usage: $0 directory..."
echo "Calculate file system usage information files for the given directories"
exit 1
fi
TEMPFILES=
register_tempfile () {
TEMPFILES="$TEMPFILES $1"
}
clean_up () {
IFS=" "
cd /
for f in $TEMPFILES; do
rm -rf $TEMPFILES
done
}
trap clean_up HUP INT TERM ERR
TEMPDIR=/tmp/.gen_pkgsize.$$
register_tempfile $TEMPDIR
mkdir -p $TEMPDIR
fatal () {
for msg in "${@}"; do
echo $msg 1>&2
done
clean_up
exit 1
}
unpack () {
cd $TEMPDIR
gzip -dc "$1" | /bin/tar xf -
}
print_subdir () {
cd $TEMPDIR/$3
dummy=$(echo */*)
echo "$dummy" | grep '\*' > /dev/null
if [ $? != 0 ]; then
du -sk */* | sed -e "s%^\([0-9]*\)[ ]*\(.*\)%$1 \1 $2/\2%"
else
du -sk * | sed -e "s%^\([0-9]*\)[ ]*\(.*\)%$1 \1 $2/\2%"
fi
}
print_sizes () {
pname=`echo "$1" | sed -e 's/\.tar\.gz$//' -e 's/\.tgz$//'`
cd $TEMPDIR
test ! -d "$pname" && fatal "Cannot find directory \"$pname\" after unpacking \"$1\""
basedir=`grep '^BASEDIR=' $pname/pkginfo | cut -f2 -d=`
if [ "x$basedir" = x/ ]; then
basedir=
fi
test -d "$pname/reloc" && print_subdir "$pname" "$basedir" "$pname/reloc"
test -d "$pname/root" && print_subdir "$pname" "$basedir" "$pname/root"
}
gen_pkgsize () {
echo "Generating .pkgsize in $1"
dir_pkgs=$(cd "$1"; find . -name '*.tar.gz' -print -o -name '*.tgz' -print | sed -e 's/^.\///')
IFS="
"
sizefile="$1/.pkgsize"
test ! -z "$dir_pkgs" && cat /dev/null > "$sizefile"
for pkg in $dir_pkgs; do
unpack "$1/$pkg" || fatal "Failed to unpack $1/$pkg"
print_sizes "$pkg" >> "$sizefile"
cd /
rm -rf $TEMPDIR
mkdir -p $TEMPDIR
done
}
# main ()
IFS="
"
mydir=`pwd`
for dir in "${@}"; do
cd "$mydir"
test ! -d "$dir" && continue
case "$dir" in
/*)
gen_pkgsize "$dir"
;;
*)
gen_pkgsize "$mydir/$dir"
;;
esac
done
clean_up
exit 0