generate-forwarding-headers.pl [plain text]
use strict;
use Cwd qw(abs_path realpath);
use File::Find;
use File::Basename;
use File::Path qw(mkpath);
use File::Spec::Functions;
my $srcRoot = realpath(File::Spec->catfile(dirname(abs_path($0)), "../.."));
my $incFromRoot = abs_path($ARGV[0]);
my @platformPrefixes = ("cf", "Cocoa", "CoordinatedGraphics", "curl", "efl", "gtk", "mac", "soup", "win");
my @frameworks = ("JavaScriptCore", "WebCore", "WebKit");
my @skippedPrefixes;
my @frameworkHeaders;
my $framework;
my $frameworkDirectoryName;
my %neededHeaders;
shift;
my $outputDirectory = $ARGV[0];
shift;
my $platform = $ARGV[0];
foreach my $prefix (@platformPrefixes) {
push(@skippedPrefixes, $prefix) unless ($prefix =~ $platform);
}
foreach (@frameworks) {
$framework = $_;
$frameworkDirectoryName = ($framework eq "WebKit") ? "WebKit2" : $framework;
@frameworkHeaders = ();
%neededHeaders = ();
find(\&collectNeededHeaders, $incFromRoot);
find(\&collectFrameworkHeaderPaths, File::Spec->catfile($srcRoot, $frameworkDirectoryName));
createForwardingHeadersForFramework();
}
sub collectNeededHeaders {
my $filePath = $File::Find::name;
my $file = $_;
if ($filePath =~ '\.h$|\.cpp$|\.c$|\.mm$') {
open(FILE, "<$file") or die "Could not open $filePath.\n";
while (<FILE>) {
if (m/^ $neededHeaders{$1} = 1;
}
}
close(FILE);
}
}
sub collectFrameworkHeaderPaths {
my $filePath = $File::Find::name;
my $file = $_;
if ($filePath =~ '\.h$' && $filePath !~ "ForwardingHeaders" && grep{$file eq $_} keys %neededHeaders) {
my $headerPath = substr($filePath, length(File::Spec->catfile($srcRoot, $frameworkDirectoryName)) + 1 );
push(@frameworkHeaders, $headerPath) unless (grep($headerPath =~ "$_/", @skippedPrefixes) || $headerPath =~ "config.h");
}
}
sub createForwardingHeadersForFramework {
my $targetDirectory = File::Spec->catfile($outputDirectory, $framework);
mkpath($targetDirectory);
foreach my $header (@frameworkHeaders) {
my $headerName = basename($header);
if(grep($_ =~ "/$headerName\$", @frameworkHeaders) == 1 || $header =~ "/$platform/" ) {
my $forwardingHeaderPath = File::Spec->catfile($targetDirectory, $headerName);
my $expectedIncludeStatement = "#include \"$frameworkDirectoryName/$header\"";
my $foundIncludeStatement = 0;
$foundIncludeStatement = <EXISTING_HEADER> if open(EXISTING_HEADER, "<$forwardingHeaderPath");
chomp($foundIncludeStatement);
if (! $foundIncludeStatement || $foundIncludeStatement ne $expectedIncludeStatement) {
print "[Creating forwarding header for $framework/$header]\n";
open(FORWARDING_HEADER, ">$forwardingHeaderPath") or die "Could not open $forwardingHeaderPath.";
print FORWARDING_HEADER "$expectedIncludeStatement\n";
close(FORWARDING_HEADER);
}
close(EXISTING_HEADER);
}
}
}