bind-9.11.3/util/new-func

#!/usr/bin/perl
#
# Copyright (C) 2005, 2007, 2012, 2016  Internet Systems Consortium, Inc. ("ISC")
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

# $Id$

# Given two CHANGES files, list [bug] entries present in the
# first one but not in the second one.
#

use FileHandle;

# $/ = "";

# Read the CHANGES file $fn and return a hash of change
# texts and categories indexed by change number.

sub readfile {
    my ($fn) = @_;
    my $fh = new FileHandle($fn, "r")
        or die "open: $fn: $!";

    my $changes = { };

    my ($changeid, $category);

    $changeid = "none";
    $category = "none";

    while (<$fh>) {
        if (m/^\s*(\d+)\.\s+\[(\w+)\]/) {
            $changeid = $1;
            $category = $2;
            # print "*** $1 $2\n";
        } elsif (m/---.* released ---/) {
            $changeid = "none";
            $category = "none";
            next;
        } elsif (m/^# /) {
            $changeid = "none";
            $category = "none";
            next;
        }
        if ($changeid eq "none") {
            next;
        }
        $changeid =~ s/\.$//;
        $changes->{$changeid}->{text} .= $_;
        $changes->{$changeid}->{category} = $category;
    }

    return $changes;
}

@ARGV == 2 || @ARGV == 3 or die "usage: $0 changes-file-1 changes-file-2\n";

my $c1 = readfile($ARGV[0]);
my $c2 = readfile($ARGV[1]);
if (@ARGV == 3) {
    $c3 = readfile($ARGV[2]);
} else {
    my $c3 = { };
}

foreach my $c (sort {$a <=> $b} keys %$c1) {
    my $category = $c1->{$c}->{category};
    my $text = $c1->{$c}->{text};
    if ($category eq "func" && !exists($c2->{$c}) && !exists($c3->{$c})) {
        print $c1->{$c}->{text};
    }
}