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#!/usr/bin/env perl
##
## Copyright (c) 2016, Alliance for Open Media. All rights reserved
##
## This source code is subject to the terms of the BSD 2 Clause License and
## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
## was not distributed with this source code in the LICENSE file, you can
## obtain it at www.aomedia.org/license/software. If the Alliance for Open
## Media Patent License 1.0 was not distributed with this source code in the
## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
##
use strict;
use warnings;
use 5.010;
use Getopt::Long;
my $git_desc;
my $version_data;
my $version_filename;
GetOptions('version_data=s' => \$version_data,
'version_filename=s' => \$version_filename) or
die("Invalid arg(s): $!");
if (!defined $version_data || length($version_data) == 0 ||
!defined $version_filename || length($version_filename) == 0) {
die("--version_data and --version_filename are required.");
}
# Determine if $version_data is a filename or a git tag/description.
my $version_string;
chomp($version_data);
if (-r $version_data) {
# $version_data is the path to the CHANGELOG. Parse the most recent version.
my $changelog_filename = $version_data;
open(my $changelog_file, '<', $changelog_filename) or
die("Unable to open CHANGELOG @ $changelog_filename: $!.");
while (my $line = <$changelog_file>) {
my @split_line = split(" ", $line, 3);
next if @split_line < 2;
$version_string = $split_line[1];
last if substr($version_string, 0, 1) eq "v";
}
close($changelog_file);
} else {
# $version_data is either a tag name or a full git description, one of:
# tagName OR tagName-commitsSinceTag-shortCommitHash
# In either case we want the first element of the array returned by split.
$version_string = (split("-", $version_data))[0];
$git_desc = $version_data;
}
if (substr($version_string, 0, 1) eq "v") {
$version_string = substr($version_string, 1);
}
my @version_components = split('\.', $version_string, 4);
my $version_major = $version_components[0];
my $version_minor = $version_components[1];
my $version_patch = $version_components[2];
my $version_extra = "";
if (length($git_desc) > 0) {
my @git_desc_components = split('-', $git_desc, 2);
$version_extra = $git_desc_components[1];
}
open(my $version_file, '>', $version_filename) or
die("Cannot open $version_filename: $!");
my $version_packed = "((VERSION_MAJOR<<16)|(VERSION_MINOR<<8)|(VERSION_PATCH))";
my $year = (localtime)[5] + 1900;
my $lic_block = << "EOF";
/*
* Copyright (c) $year, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
EOF
select $version_file;
if (length($git_desc)) {
print << "EOF";
$lic_block
#define VERSION_MAJOR $version_major
#define VERSION_MINOR $version_minor
#define VERSION_PATCH $version_patch
#define VERSION_EXTRA \"$version_extra\"
#define VERSION_PACKED $version_packed
#define VERSION_STRING_NOSP \"$git_desc\"
#define VERSION_STRING \" $git_desc\"
EOF
} else {
print << "EOF";
$lic_block
#define VERSION_MAJOR $version_major
#define VERSION_MINOR $version_minor
#define VERSION_PATCH $version_patch
#define VERSION_EXTRA \"$version_extra\"
#define VERSION_PACKED $version_packed
#define VERSION_STRING_NOSP \"v$version_string\"
#define VERSION_STRING \" v$version_string\"
EOF
}
close($version_file);
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