#!/bin/sh

KEY=miguel@tirania.org
FN="$1"

if [ "x$FN" = x ]
then
	FN=/home/miguel/.passwords
else
	xxx="`basename "$FN" .gpg`"
	if [ ! "$xxx" = "$FN" ] ; then FN="$xxx"; fi
fi

EFN="${FN}.gpg"

# test -f $FN && wipe -f $FN
gpg -o $FN -d $EFN
if [ $? -eq 0 ]
then
	touch -r $EFN $FN
	vi -c 'set nobackup' $FN
	if [ $FN.gpg -ot $FN ]
	then
		echo "Removing old $EFN..."
		rm -f $EFN
		echo "Encrypting..."
		gpg -r $KEY -e $FN
	else
		echo "Not modified."
	fi
	echo "Removing $FN..."
	dd if=/dev/zero of=$FN count=1 bs=`stat -c '%s' $FN`
	rm -f $FN
fi

unset KEY FN EFN