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#!/usr/bin/perl -w
#
# Copyright (C) 2020-2021 Kevin J. McCarthy <kevin@8t8.us>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
# This file is a rewrite of hcachever.sh.in in perl.
# The rewrite removes the dependency on mutt_md5, in order to
# improve cross-compilation support.
use strict;
use warnings;
# note Digest::MD5 is standard in perl since 5.8.0 (July 18, 2002)
use Digest::MD5;
sub read_line() {
my $line;
while (1) {
$line = <STDIN>;
return "" if (!$line);
chomp($line);
$line =~ s/^\s+//;
$line =~ s/\s+$//;
$line =~ s/\s{2,}//g;
return $line if ($line ne "");
}
}
sub process_struct($$) {
my ($line, $md5) = @_;
my $struct = "";
my @body;
my $bodytxt;
my $inbody = 0;
return if $line =~ /;$/;
if ($line =~ /{$/) {
$inbody = 1;
}
while (($line = read_line()) ne "") {
if (!$inbody) {
return if $line =~ /;$/;
if ($line =~ /{$/) {
$inbody = 1;
}
}
if ($line =~ /^} (.*);$/) {
$struct = $1;
last;
}
elsif ($line =~ /^}/) {
$struct = read_line();
if ($struct ne "") {
$struct =~ s/;$//;
}
last;
}
elsif (($line !~ /^#/) && ($line !~ /^{/)) {
if ($inbody) {
push @body, $line;
}
}
}
if ($struct =~ /^(ADDRESS|LIST|BUFFER|PARAMETER|BODY|ENVELOPE|HEADER|COLOR_ATTR)$/) {
$bodytxt = join(" ", @body);
print " * ${struct}: ${bodytxt}\n";
$md5->add(" ${struct} {${bodytxt}}");
}
}
my $md5;
my $line;
my $BASEVERSION = "2";
$md5 = Digest::MD5->new;
$md5->add($BASEVERSION);
print "/* base version: $BASEVERSION\n";
while (($line = read_line()) ne "") {
if ($line =~ /^typedef struct/) {
process_struct($line, $md5);
}
}
$md5->add("\n");
my $digest = substr($md5->hexdigest, 0, 8);
print " */\n";
print "#define HCACHEVER 0x${digest}\n";
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