qt5base-lts/bin/fixqt4headers.pl

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#!/usr/bin/env perl
#############################################################################
##
## Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
## Contact: http://www.qt-project.org/
##
## This file is part of the porting tools of the Qt Toolkit.
##
## $QT_BEGIN_LICENSE:LGPL$
## GNU Lesser General Public License Usage
## This file may be used under the terms of the GNU Lesser General Public
## License version 2.1 as published by the Free Software Foundation and
## appearing in the file LICENSE.LGPL included in the packaging of this
## file. Please review the following information to ensure the GNU Lesser
## General Public License version 2.1 requirements will be met:
## http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
##
## In addition, as a special exception, Nokia gives you certain additional
## rights. These rights are described in the Nokia Qt LGPL Exception
## version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
##
## GNU General Public License Usage
## Alternatively, this file may be used under the terms of the GNU General
## Public License version 3.0 as published by the Free Software Foundation
## and appearing in the file LICENSE.GPL included in the packaging of this
## file. Please review the following information to ensure the GNU General
## Public License version 3.0 requirements will be met:
## http://www.gnu.org/copyleft/gpl.html.
##
## Other Usage
## Alternatively, this file may be used in accordance with the terms and
## conditions contained in a signed written agreement between you and Nokia.
##
##
##
##
##
##
## $QT_END_LICENSE$
##
#############################################################################
use Cwd;
use File::Find;
use File::Spec;
use IO::File;
use Getopt::Long;
use strict;
use warnings;
my $dry_run = 0;
my $help = 0;
my $stripModule = 0;
my $fixedFileCount = 0;
my $fileCount = 0;
my $verbose = 0;
my $qtdir = $ENV{'QTDIR'};
my $USAGE=<<EOF;
This script replaces all Qt 4 style includes with Qt 5 includes.
Usage: $0 [options]
Options:
--dry-run : Do not replace anything, just print what would be replaced
--strip-modules : Strip the module headers for writing portable code
--verbose : Verbose
--qtdir <directory> : Point to Qt 5's qtbase directory
EOF
if (!GetOptions('dry-run' => \$dry_run, 'help' => \$help,
'strip-modules' => \$stripModule, 'verbose' => \$verbose, 'qtdir:s' => \$qtdir)
|| $help) {
print $USAGE;
exit (1);
}
my %headerSubst = ();
my $cwd = getcwd();
sub fixHeaders
{
my $fileName = $File::Find::name;
my $relFileName = File::Spec->abs2rel($fileName, $cwd);
# only check sources, also ignore symbolic links and directories
return unless -f $fileName && $fileName =~ /(\.h|\.cpp|\/C|\.cc|\.CC)$/;
my $inFile = new IO::File('<' . $fileName) or die ('Unable to open ' . $fileName . ': ' . $!);
$fileCount++;
my @affectedClasses;
my @outLines;
while (my $line = <$inFile>) {
if ($line =~ /^#(\s*)include(\s*)<.*?\/(.*?)>(.*)/) {
my $newHeader = $headerSubst{$3};
if ($newHeader) {
$line = '#' . $1 . 'include' . $2 . '<' . $newHeader . '>' . $4 . "\n";
push(@affectedClasses, $3);
}
} elsif ($line =~ /^#(\s*)include(\s*)<QtGui>(.*)/) {
$line = '#' . $1 . 'include' . $2 . '<QtWidgets>' . $3 . "\n";
push(@affectedClasses, 'QtGui');
}
push(@outLines, $line);
}
$inFile->close();
if (scalar(@affectedClasses)) {
$fixedFileCount++;
print $relFileName, ': ', join(', ', @affectedClasses), "\n" if ($verbose || $dry_run);
if (!$dry_run) {
my $outFile = new IO::File('>' . $fileName) or die ('Unable to open ' . $fileName . ': ' . $!);
map { print $outFile $_; } @outLines;
$outFile->close();
}
} else {
print $relFileName, ": no modification.\n" if ($verbose || $dry_run);
}
}
sub findQtHeaders
{
my ($dirName,$baseDir) = @_;
local (*DIR);
opendir(DIR, $baseDir . '/include/' . $dirName) || die ('Unable to open ' .$baseDir . '/include/' . $dirName . ': ' . $!);
my @headers = readdir(DIR);
closedir(DIR);
foreach my $header (@headers) {
next if (-d ($baseDir . '/include/' . $dirName . '/' . $header) || $header =~ /\.pri$/);
$headerSubst{$header} = $stripModule ? $header : ($dirName . '/' . $header);
}
}
# -------- MAIN
die "This script requires the QTDIR environment variable pointing to Qt 5\n" unless $qtdir;
findQtHeaders('QtCore', $qtdir);
findQtHeaders('QtConcurrent', $qtdir);
findQtHeaders('QtWidgets', $qtdir);
findQtHeaders('QtPrintSupport', $qtdir);
if (-d $qtdir . '/include/QtQuick1') {
findQtHeaders('QtQuick1', $qtdir);
} elsif (-d $qtdir . '/../qtdeclarative' ) {
# This is the case if QTDIR points to a source tree instead of an installed Qt
findQtHeaders('QtQuick1', $qtdir . '/../qtdeclarative');
} else {
print "Warning - cannot find QtQuick1 headers\n";
}
# Support porting from "Qt 4.99" QtDeclarative to QtQuick (QQuickItem et al)
if (-d $qtdir . '/include/QtQuick') {
findQtHeaders('QtQuick', $qtdir);
} elsif (-d $qtdir . '/../qtdeclarative' ) {
# This is the case if QTDIR points to a source tree instead of an installed Qt
findQtHeaders('QtQuick', $qtdir . '/../qtdeclarative');
}
# special case
$headerSubst{'QtGui'} = 'QtWidgets/QtWidgets';
find({ wanted => \&fixHeaders, no_chdir => 1}, $cwd);
print 'Done. ', ($dry_run ? 'Checked' : 'Modified'), ' ', $fixedFileCount, ' of ', $fileCount, " file(s).\n";