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#!/usr/bin/perl
#
# Copyright (C) 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 https://mozilla.org/MPL/2.0/.
#
# See the COPYRIGHT file distributed with this work for additional
# information regarding copyright ownership.
# 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};
}
}
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