util/write-man-symlinks

#! /usr/bin/env perl
# Copyright 2021 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


require 5.10.0;
use warnings;
use strict;

use FindBin;
use lib "$FindBin::Bin/perl";

use OpenSSL::Util::Pod;

if ($#ARGV + 1 != 5 || $ARGV[0] !~ /^(un)?install$/) {
    print "Usage: write-man-symlinks [install|uninstall] src-dir build-dir man-page-name target-dir\n";
    exit;
}

my $action = $ARGV[0];
my $srcdir = $ARGV[1];
my $builddir = $ARGV[2];
my $manname = $ARGV[3];
my $targetdir = $ARGV[4];

$manname =~ m|(.+)\.(.+)|;
my $mainf = $1;
my $section = $2;
die "Bad src file" if !defined $mainf;
my $podfile = "$srcdir/$mainf.pod";
#Some pod files are generated and are in the build dir
unless (-e $podfile) {
    $podfile = "$builddir/$mainf.pod";
}
my %podinfo = extract_pod_info($podfile);

for my $name (@{$podinfo{names}}) {
    next if $name eq $mainf;
    if ($action eq "install") {
        symlink "$manname", "$targetdir/$name.$section";
    } else {
        unlink "$targetdir/$name.$section";
    }
}