syncfiles.pl

   1 #!/usr/bin/perl
   2 #
   3 # Sync the output file list between Makefiles
   4 # Use the mkdep.pl parameters to get the filename syntax
   5 #
   6 # The first file is the source file; the other ones target.
   7 #
   8 %def_hints = ('object-ending' => '.o',
   9               'path-separator' => '/',
  10               'continuation' => "\\");
  11
  12 sub do_transform($$) {
  13     my($l, $h) = @_;
  14     my($ps) = $$h{'path-separator'};
  15
  16     $l =~ s/\x01/$$h{'object-ending'}/g;
  17     $l =~ s/\x03/$$h{'continuation'}/g;
  18
  19     if ($ps eq '') {
  20         # Remove the path separator and the preceeding directory
  21         $l =~ s/[^\s\=]*\x02//g;
  22     } else {
  23         # Convert the path separator
  24         $l =~ s/\x02/$ps/g;
  25     }
  26
  27     return $l;
  28 }
  29
  30 @file_list = ();
  31
  32 $first = 1;
  33 $first_file = $ARGV[0];
  34 die unless (defined($first_file));
  35
  36 foreach $file (@ARGV) {
  37     open(FILE, "< $file\0") or die;
  38
  39     # First, read the syntax hints
  40     %hints = %def_hints;
  41     while (defined($line = <FILE>)) {
  42         if ( $line =~ /^\s*\#\s*@([a-z0-9-]+):\s*\"([^\"]*)\"/ ) {
  43             $hints{$1} = $2;
  44         }
  45     }
  46
  47     # Read and process the file
  48     seek(FILE,0,0);
  49     @lines = ();
  50     $processing = 0;
  51     while (defined($line = <FILE>)) {
  52         chomp $line;
  53         if ($processing) {
  54             if ($line eq '#-- End File Lists --#') {
  55                 push(@lines, $line."\n");
  56                 $processing = 0;
  57             } elsif ($first) {
  58                 my $xl = $line;
  59                 my $oe = "\Q$hints{'object-ending'}";
  60                 my $ps = "\Q$hints{'path-separator'}";
  61                 my $cn = "\Q$hints{'continuation'}";
  62
  63                 $xl =~ s/${oe}(\s|$)/\x01$1/g;
  64                 $xl =~ s/${ps}/\x02/g;
  65                 $xl =~ s/${cn}$/\x03/;
  66                 push(@file_list, $xl);
  67                 push(@lines, $line);
  68             }
  69         } else {
  70             push(@lines, $line."\n");
  71             if ($line eq '#-- Begin File Lists --#') {
  72                 $processing = 1;
  73                 if (!$first) {
  74                     push(@lines, "# Edit in $first_file, not here!\n");
  75                     foreach $l (@file_list) {
  76                         push(@lines, do_transform($l, \%hints)."\n");
  77                     }
  78                 }
  79             }
  80         }
  81     }
  82     close(FILE);
  83
  84     # Write the file back out
  85     if (!$first) {
  86         open(FILE, "> $file\0") or die;
  87         print FILE @lines;
  88         close(FILE);
  89     }
  90
  91     undef @lines;
  92     $first = 0;
  93 }