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# savebin.inc: provide functions to save old binaries and libraries for
# upgrading
#
# These functions assume that the variable $PKGVERSION is set and contains the
# major version number of the currently installed postgresql package (e. g.
# "7.4")
SAVEDIR="/var/lib/postgres/dumpall"
# save file $1 into $SAVEDIR/$PKGVERSION
save_file() {
if [ -z "$PKGVERSION" ]; then
echo "Error: savebin.inc requires the setting of \$PKGVERSION" >&2
exit 1
fi
DIR="$SAVEDIR/$PKGVERSION"
if [ -e "$1" ]; then
[ -d "$DIR" ] || install -d "$DIR"
F="`basename \"$1\"`"
[ -e "$DIR/$F" ] || cp -d "$1" "$DIR"
fi
}
# save library $1 and its recursive symlink targets into $SAVEDIR
save_lib() {
save_file "$1"
if [ -L "$1" ]; then
save_lib "`readlink -f \"$1\"`"
fi
}
# save binary and all its linked libraries into $SAVEDIR
save_bin() {
save_file "$1"
if ldd "$1" >/dev/null 2>/dev/null; then
# file is a dynamically linked binary, get libs
LIBS="`ldd \"$1\" | awk '{print $3}'`"
for lib in $LIBS; do
save_lib "$lib"
done
fi
}
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