NetBSD/usr.bin/file/file2netbsd

#!/usr/local/bin/perl
#
#	$NetBSD: file2netbsd,v 1.1.1.1 1998/09/19 18:07:41 christos Exp $
#
#  Perl script to convert a standard distribution directory for file into
#	a NetBSD source tree.
#
#  This is done as a script so that as each distribution is released,
#	only changes from the previous one need to be dealt with as
#	modifications to this script and related files.  This should
#	reduce the cost of updating from a new release of xntp by an
#	order of magnitude (or more?)
#
#  This script requires two environment variables set:
#	SRCDIR - file source directory
#	TARGETDIR - name of the high level directory to make
#
#  Written by Christos Zoulas July 17, 1997 for file-3.26
#

$version = "3.26";

# definitions ...

@subdirs = ("usr.bin/file", "usr.bin/file/magdir");


@filef = ("LEGAL.NOTICE", "MAINT", 
	  "PORTING", "README", "apprentice.c", "ascmagic.c",
	  "compress.c", "file.c", "file.h", "fsmagic.c",
	  "internat.c", "is_tar.c", "names.h", "patchlevel.h",
	  "print.c", "readelf.c", "readelf.h", "softmagic.c", "tar.h");

#
# Utility Subroutines
#

sub makedir {
    system("mkdir -p @_");
}

# &fixrcs (fromfile, tofile);
sub fixrcs
{
    my ($f, $t) = @_;
    my @keywords = ("Author", "Date", "Header", "Id", "Locker", "Log",
		    "Name", "RCSfile", "Revision", "Source", "State");
    my $state = 0;
    my $hdr = 0;

    open(IFILE, "<$f") || die "Cannot open $f";
    open(OFILE, ">$t") || die "Cannot create $t";

    if ($t =~ /.*\.[0-9]/) {
	print OFILE '.\\" $', 'NetBSD',  '$', "\n", '.\\"', "\n";
    }
    elsif ($t =~ /.*\.[ch]/) {
	print OFILE "/*\t", '$', 'NetBSD', '$', "\t*/\n\n";
    }
    elsif ($t =~ /.*\.[yl]/) {
	$hdr = 1;
    }
    else {
	print OFILE '$', 'NetBSD', '$', "\n";
    }
    while (<IFILE>) {
	if ($hdr == 1) {
	    if (/%{/) {
		print OFILE "%{\n/*\t", '$', 'NetBSD', '$', "\t*/\n\n";
		$hdr = 0;
		next;
	    }
	}
	if ($state == 2) {
	    if (/#endif/) {
		print OFILE "#else\n__RCSID(", '"$', 'NetBSD', '$"',
		    ");\n#endif\n";
		$state = 0;
	    }
	}
	if ($state == 1) {
	    print OFILE "#if 0\n";
	    $state = 2;
	}
	if (/#ifndef lint/) {
	    print OFILE "#include <sys/cdefs.h>\n";
	    $state = 1;
	}
	foreach $key (@keywords) {
	    s/\$$key\$/$key/g;
	    s/\$$key:(.*)\$/$key:$1/g;
	}
	print OFILE $_;
    }
    close(IFILE) || die "closing input file";
    close(OFILE) || die "closing output file";
}

# &copyfiles (fromdir, todir, list of files);
sub copyfiles {
    local ($fdir, $tdir, @list) = @_;
    local ($f);

    foreach $f (@list) {
	print "  $fdir/$f --> $tdir/$f\n";
	&fixrcs("$fdir/$f", "$tdir/$f");
    }
}

# &copyfile (fromfile, tofile);
sub copyfile {
    local ($f, $t) = @_;

    print "  $f --> $t\n";
    &fixrcs("$f", "$t");
}

sub uniq {
    local (@inlist) = @_;
    local (@outlist);

    @outlist = ($inlist[0]);
    for ( $i=1; $i < @inlist; $i++ ) {
	if ($inlist[$i] ne $inlist[$i-1]) {
	    push (@outlist, $inlist[$i]);
	}
    }

    @outlist;
}

sub dumpsrcs {
    local (@names) = @_;
    local ($count);

    print ODATA "SRCS=\t";
    $count = 0;
    while ($f = pop(@names)) {
        print ODATA "$f ";
	if ($count == 5 && @names > 0) {
	    print ODATA "\\\n";
	    $count = 0;
	} else {
	    $count += 1;
	}
    }
    if ($count != 0) {
	print ODATA "\n";
    }
}

#
# Main progarm.
# 

$srcdir = $ENV{'SRCDIR'};
$targetdir = $ENV{'TARGETDIR'};
$incdirs = "-I. -I$srcdir/config -I$srcdir";

if (!$srcdir | !targetdir) {
    die "You must define the environment variables SRCDIR and TARGETDIR.\n"
} 
print "Making the NetBSD directory tree.\n";
foreach $f (@subdirs) { 
    print "   -->$f\n";
    makedir ("$targetdir/$f");
}

print "Populating the usr.bin/file directory.\n";
&copyfiles ("$srcdir", "$targetdir/usr.bin/file", @filef);
&copyfile("$srcdir/file.man", "$targetdir/usr.bin/file/file.1");
&copyfile("$srcdir/magic.man", "$targetdir/usr.bin/file/magic.5");
system("cat $srcdir/Header > $targetdir/usr.bin/file/Header");
system("cat $srcdir/Localstuff > $targetdir/usr.bin/file/Localstuff");

print "Populating the usr.bin/file/magdir directory.\n";
system("cp -rp $srcdir/Magdir/* $targetdir/usr.bin/file/magdir; chmod -r ug+w magdir");

#
# Build makefiles
#

$first = "True";
while ($line = <DATA>) {
    chop ($line);
    if (substr($line,0,2) eq "%%") {
	@cmd = split (/ /,$line);
	if ($cmd[1] eq "file") {
	    print "Building $targetdir/$cmd[2]\n";
	    if ($first eq "") {
		close (ODATA);
	    } else {
		$first = "";
	    }
	    open (ODATA, ">$targetdir/$cmd[2]") ||
		die "Could not create $targetdir/$cmd[2]";
	} elsif ($cmd[1] eq "srcs") {
	    print "  Defining SRCS for $cmd[2]\n";
	    if ($first) {
		die "Data file must start with a %% file!";
	    }
	    if ($cmd[2] eq "amd") {
		&dumpsrcs (@amdf, @amdef);
	    } elsif ($cmd[2] eq "amq") {
		&dumpsrcs (@amqf, @amqef);
	    } elsif ($cmd[2] eq "pawd") {
		&dumpsrcs (@pawdf, @pawdef);
	    } elsif ($cmd[2] eq "hlfsd") {
		&dumpsrcs (@hlfsdf, @hlfsdef);
	    } elsif ($cmd[2] eq "fixmount") {
		&dumpsrcs (@fixmountf, @fixmountef);
	    } elsif ($cmd[2] eq "fsinfo") {
		&dumpsrcs (@fsinfof, @fsinfoef);
	    } elsif ($cmd[2] eq "libamu") {
		&dumpsrcs (@libamuf, @libamuef);
	    } elsif ($cmd[2] eq "mk-amd-map") {
		&dumpsrcs (@mkamdmapf, @mkamdmapef);
	    } elsif ($cmd[2] eq "wire-test") {
		&dumpsrcs (@wiretestf, @wiretestef);
	    } elsif ($cmd[2] eq "doc") {
		&dumpsrcs (@docf, @docef);
	    } else {
		die "Unknown SRCS command";
	    }
	} elsif ($cmd[1] eq "NetBSD") {
	    if ($first) {
		die "Data section must start with a %% file!";
	    }
	    print ODATA "$cmd[2]	\$"."NetBSD".": \$\n";
	}
    } else {
	if ($first) {
	    die "Data file must start with a %% file!";
	}
	print ODATA "$line\n";
    }
}    
close (ODATA);

#
# Sed transformations of files
#

foreach $n (keys(%sedlist)) {
    print "Modifying $n\n";
    system ("cd $targetdir; sed $sedlist{$n} $n > tmp;  mv -f tmp $n");
}

#
# end of the script
#

# what follows is the data for makefiles and other special files
# that need to be created.

__END__
%% file usr.bin/file/Makefile
%% NetBSD #

FILESDIR=	/usr/share/misc
FILES=		magic
MAGIC=		${FILESDIR}/${FILES}

PROG=		file
SRCS=		file.c apprentice.c fsmagic.c softmagic.c ascmagic.c is_tar.c \
		print.c compress.c readelf.c internat.c
CPPFLAGS+=	-DMAGIC='"$(MAGIC)"'
MAN=		file.1 magic.5

CLEANFILES+=	magic
all:		file magic

MAGDIRF:sh=	echo $(.CURDIR)/magdir/[0-9a-z]*
MAGFILES=	$(.CURDIR)/Header \
		$(.CURDIR)/Localstuff \
		$(.CURDIR)/magdir/netbsd \
		${MAGDIRF}

magic:		$(MAGFILES)
	cat $(MAGFILES) > $(.TARGET)

.include <bsd.prog.mk>