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#!/usr/bin/env perl
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library. If not, see
# <http://www.gnu.org/licenses/>.
#
#
# Regroup array values into smaller groups separated by numbered comments.
#
# If --check is the first parameter, the script will return
# a non-zero value if a file is not grouped correctly.
# Otherwise the files are regrouped in place.
use strict;
use warnings;
my $check = 0;
if (defined $ARGV[0] && $ARGV[0] eq "--check") {
$check = 1;
shift @ARGV;
}
my $prefix = '';
if (defined $ARGV[0]) {
$prefix = $ARGV[0];
shift @ARGV;
}
my $ret = 0;
if (®roup_caps($prefix . 'src/qemu/qemu_capabilities.c',
'^VIR_ENUM_IMPL\(virQEMUCaps,',
'\);',
0,
" ") < 0) {
$ret = 1;
}
if (®roup_caps($prefix . 'src/qemu/qemu_capabilities.h',
'virQEMUCapsFlags grouping marker',
'QEMU_CAPS_LAST \/\* this must',
1,
" ") < 0) {
$ret = 1;
}
exit $ret;
sub regroup_caps {
my $filename = shift;
my $start_regex = shift;
my $end_regex = shift;
my $trailing_newline = shift;
my $counter_prefix = shift;
my $step = 5;
open FILE, '<', $filename or die "cannot open $filename: $!";
my @original = <FILE>;
close FILE;
my @fixed;
my $game_on = 0;
my $counter = 0;
foreach (@original) {
if ($game_on) {
next if ($_ =~ '/\* [0-9]+ \*/');
next if (/^\s+$/);
if ($counter % $step == 0) {
if ($counter != 0) {
push @fixed, "\n";
}
push @fixed, "$counter_prefix/* $counter */\n";
}
if (!($_ =~ '/\*' && !($_ =~ '\*/'))) {
# count two-line comments as one line
$counter++;
}
}
if (/$start_regex/) {
$game_on = 1;
} elsif ($game_on && $_ =~ /$end_regex/) {
if (($counter -1) % $step == 0) {
pop @fixed; # /* $counter */
if ($counter != 1) {
pop @fixed; # \n
}
}
if ($trailing_newline) {
push @fixed, "\n";
}
$game_on = 0;
}
push @fixed, $_;
}
if ($check) {
my $nl = join('', @fixed);
my $ol = join('', @original);
unless ($nl eq $ol) {
open DIFF, "| diff -u $filename -" or die "cannot run diff: $!";
print DIFF $nl;
close DIFF;
print STDERR "Incorrect array grouping in $filename\n";
print STDERR "Use group-qemu-caps.pl to group long array members\n";
return -1;
}
} else {
open FILE, '>', $filename or die "cannot open $filename: $!";
foreach my $line (@fixed) {
print FILE $line;
}
close FILE;
}
}
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