#! /usr/bin/env perl
# Copyright 2005-2018 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the Apache License 2.0 (the "License").  You may not use
# this file except in compliance with the License.  You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html


use Fcntl;


# copy.pl

# Perl script 'copy' comment. On Windows the built in "copy" command also
# copies timestamps: this messes up Makefile dependencies.

my $stripcr = 0;

my $arg;
my @excludes = ();

foreach $arg (@ARGV) {
	if ($arg eq "-stripcr")
		{
		$stripcr = 1;
		next;
		}
	if ($arg =~ /^-exclude_re=(.*)$/)
		{
		push @excludes, $1;
		next;
		}
	$arg =~ s|\\|/|g;	# compensate for bug/feature in cygwin glob...
	$arg = qq("$arg") if ($arg =~ /\s/);	# compensate for bug in 5.10...
	foreach my $f (glob $arg)
		{
		push @filelist, $f unless grep { $f =~ /$_/ } @excludes;
		}
}

$fnum = @filelist;

if ($fnum <= 1)
	{
	die "Need at least two filenames";
	}

$dest = pop @filelist;

if ($fnum > 2 && ! -d $dest)
	{
	die "Destination must be a directory";
	}

foreach (@filelist)
	{
	if (-d $dest)
		{
		$dfile = $_;
		$dfile =~ s|^.*[/\\]([^/\\]*)$|$1|;
		$dfile = "$dest/$dfile";
		}
	else
		{
		$dfile = $dest;
		}
	sysopen(IN, $_, O_RDONLY|O_BINARY) || die "Can't Open $_";
	sysopen(OUT, $dfile, O_WRONLY|O_CREAT|O_TRUNC|O_BINARY)
					|| die "Can't Open $dfile";
	while (sysread IN, $buf, 10240)
		{
		if ($stripcr)
			{
			$buf =~ tr/\015//d;
			}
		syswrite(OUT, $buf, length($buf));
		}
	close(IN);
	close(OUT);
	print "Copying: $_ to $dfile\n";
	}