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https://github.com/openssl/openssl.git
synced 2024-11-21 01:15:20 +08:00
44 lines
1.1 KiB
Perl
44 lines
1.1 KiB
Perl
#! /usr/bin/env perl
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# Copyright 2021-2022 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the Apache License 2.0 (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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use strict;
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use warnings;
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package OpenSSL::copyright;
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sub year_of {
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my $file = shift;
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return $ENV{'OSSL_COPYRIGHT_YEAR'} if defined $ENV{'OSSL_COPYRIGHT_YEAR'};
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# Get the current year. We use that as the default because the other
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# common case is that someone unpacked a tarfile and the file dates
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# are't properly set on extract.
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my $YEAR = [localtime()]->[5] + 1900;
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# See if git's available
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open my $FH,
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"git log -1 --date=short --format=format:%cd $file 2>/dev/null|"
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or return $YEAR;
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my $LINE = <$FH>;
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close $FH;
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$LINE =~ s/^([0-9]*)-.*/$1/;
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$YEAR = $LINE if $LINE;
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return $YEAR;
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}
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sub latest {
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my $l = 0;
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foreach my $f (@_ ) {
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my $y = year_of($f);
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$l = $y if $y > $l;
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}
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return $l
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}
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1;
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