#!/usr/bin/perl

# Copyright (C) 2002 David Muir Sharnoff
# This may be copied, modified, used, and redistributed under the
# same terms as Perl itself.

use Object::Transaction;
use File::Slurp;
use Storable;
use Data::Dumper;

*read_file = \&Object::Transaction::_read_file;
*lock = \&Object::Transaction::_lock;
*unlock = \&Object::Transaction::_unlock;
*magic_cookie = \$Object::Transaction::magic_cookie;

my $pager = $ENV{PAGER} || 'more';

for my $file (@ARGV) {
	lock($file);
	die "will not overwrite $file.dumped" 
		if -e "$file.dumped";
}

my @ff;
for my $file (@ARGV) {
	my $frozen = read_file($file);
	my $ff = $file;
	$ff =~ s/'/'\\''/g;
	if (substr($frozen, 0, length($magic_cookie)) eq $magic_cookie) {
		substr($frozen, 0, length($magic_cookie)) = '';
		my $obj = Storable::thaw($frozen);
		my $human = Dumper($obj);
		die "will not overwrite $file.dumped" 
			if -e $file.dumped;
		write_file("$file.dumped", $human);
		push(@ff, "'$ff.dumped'");
	} else {
		print STDERR "Warning: $file isn't an Object::Transaction object\n";
		push(@ff, "'$ff'");
	}
}

system("$pager @ff");

for my $file (@ARGV) {
	unlink("$file.dumped");
}