build/mklar.pl

   1 #!/usr/bin/perl
   2
   3 use strict;
   4 use File::Find;
   5 use Digest::MD5 qw(md5 md5_hex);
   6
   7 my @search = @ARGV;
   8 if( !@search ) {
   9         @search = (
  10                 glob("libs/*"),
  11                 glob("applications/*"),
  12                 glob("i18n/*"),
  13                 glob("modules/*")
  14         );
  15 }
  16
  17
  18 sub depth {
  19         my $p = shift;
  20         my $d = 0;
  21         $d++ while( $p =~ m{/}g );
  22         return $d;
  23 };
  24
  25
  26 my @index;
  27 my $offset = 0;
  28
  29
  30 #
  31 # Build File Members
  32 #
  33
  34 find( sub {
  35         # Skip non-files
  36         ( -f $_ ) || return;
  37
  38         # Skip stuff not in /luasrc/
  39         ( $File::Find::name =~ m{/luasrc/} ) || return;
  40
  41         # Skip .svn foo
  42         ( $File::Find::name !~ m{/\.svn\b} ) || return;
  43
  44         # Exclude luci-statistics and lucittpd for now
  45         ( $File::Find::name !~ m{/luci-statistics/} && $File::Find::name !~ m{/lucittpd/} ) || return;
  46
  47
  48         my $file = $File::Find::name;
  49         $file =~ s{^.+/luasrc/}{luci/};
  50
  51         my $command = ( $File::Find::name =~ m{\.lua\z} && $ENV{LUAC} )
  52                 ? "$ENV{LUAC} -o - $_ |" : "< $_";
  53
  54         if( open F, $command )
  55         {
  56                 warn sprintf "Member at 0x%08X: %s\n", $offset, $file;
  57                 push @index, [ ];
  58
  59                 my $size = 0;
  60                 my $pad  = 0;
  61
  62                 $index[-1][0] = $offset;
  63
  64                 while( read F, my $buffer, 4096 ) {
  65                         $size += length $buffer;
  66                         print $buffer;
  67                 }
  68
  69                 if( $size % 4 ) {
  70                         $pad = ( 4 - ( $size % 4 ) );
  71                 }
  72
  73                 print "\0" x $pad;
  74
  75                 $index[-1][1] = $size;
  76                 $index[-1][2] = md5($file);
  77                 $index[-1][3] = 0x0000;
  78                 $index[-1][4] = $file;
  79
  80                 $offset += $size + $pad;
  81
  82                 close F;
  83         }
  84 }, @search );
  85
  86
  87 #
  88 # Build File List Member
  89 #
  90
  91 my $filelist = join("\0", map $_->[4], @index) . "\0";
  92 my $listsize = length $filelist;
  93 push @index, [ $offset, $listsize, "", 0xFFFF, undef ];
  94
  95 warn sprintf "Filelist at 0x%08X, length 0x%08X\n", $offset, $listsize;
  96
  97 print $filelist;
  98 $offset += $listsize;
  99
 100 if( $listsize % 4 )
 101 {
 102         $offset += ( 4 - ($listsize % 4) );
 103         print "\0" x ( 4 - ($listsize % 4) );
 104 }
 105
 106
 107 my $count = 1;
 108 foreach my $file ( @index )
 109 {
 110         warn sprintf "Index[%4d]: 0x%08X 0x%08X 0x%04X 0x%04X %32s\n",
 111                 $count++, $file->[0], $file->[1], $file->[3], 0x0000,
 112                 $file->[4] ? md5_hex($file->[4]) : "0" x 32
 113         ;
 114
 115         print pack "NNnna16", $file->[0], $file->[1], $file->[3], 0x0000, $file->[2];
 116 }
 117
 118 warn sprintf "Index at 0x%08X, length 0x%08X\n", $offset, @index * 28;
 119 print pack "N", $offset;