#!/usr/bin/perl

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use strict;

use warnings;

use File::Basename;

use File::stat;

use File::Path;

my $allow_non_exported = 1;

if ( @ARGV && $ARGV[0] eq "-needs-export" ) {

    shift(@ARGV);

    $allow_non_exported = 0;

}

my $outdir = shift(@ARGV) or usage();

mkpath($outdir);

my $indir = shift(@ARGV) or usage();

processFile($indir);

exit 0;

sub usage

{

    print "Usage:  syncheaders [-needs-export] outdir indir\n";

    print "        Processes all public header files <indir>\n";

    exit 2;

}

sub processFile

{

    my ( $read_dir ) = @_;

    my @allFiles;

    my $filename;

    opendir( THISDIR, $read_dir) or die "Can't read $read_dir";

    #process all header files

    @allFiles = grep /\.h/,  readdir THISDIR;

    #don't include private headers

    @allFiles = grep !/_p\.h/, @allFiles;

    for $filename (@allFiles) {

        open INPUT, "$indir/$filename" or die "Can't read $filename";

        my $src_s = stat("$indir/$filename");

        my $now = $src_s->mtime;

        while (<INPUT>) {

            if ( /^\s*class\s+.*_EXPORT\s+([^\s:]+)/ ||

                 ($allow_non_exported && /^\s*class\s+([^\s:<]+)/ && index($_, ";") == -1) ||

                 /syncqtopia\s+header\s+([^\s:]+)/ )

            {

                # Skip preprocessor-related items

                next if ( $1 =~ /#/ );

                my $outfile = "$outdir/$1";

                print "Create header $outfile\n";

                #system("install", "-m", "0644", $filename, $outfile);

                open OUT, ">$outfile" or die "Can't write $outfile";

                print OUT "#include \"".basename($filename)."\"\n";

                close OUT;

            }

        }

        close INPUT;

    }

}