memory/jemalloc/apply-ed-patches.pl

   1 #!/bin/perl
   2 # ***** BEGIN LICENSE BLOCK *****
   3 # Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4 #
   5 # The contents of this file are subject to the Mozilla Public License Version
   6 # 1.1 (the "License"); you may not use this file except in compliance with
   7 # the License. You may obtain a copy of the License at
   8 # http://www.mozilla.org/MPL/
   9 #
  10 # Software distributed under the License is distributed on an "AS IS" basis,
  11 # WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12 # for the specific language governing rights and limitations under the
  13 # License.
  14 #
  15 # The Original Code is Mozilla build system.
  16 #
  17 # The Initial Developer of the Original Code is
  18 # Mozilla Foundation.
  19 # Portions created by the Initial Developer are Copyright (C) 2008
  20 # the Initial Developer. All Rights Reserved.
  21 #
  22 # Contributor(s):
  23 #  Ted Mielczarek <ted.mielczarek@gmail.com>
  24 #
  25 # Alternatively, the contents of this file may be used under the terms of
  26 # either the GNU General Public License Version 2 or later (the "GPL"), or
  27 # the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  28 # in which case the provisions of the GPL or the LGPL are applicable instead
  29 # of those above. If you wish to allow use of your version of this file only
  30 # under the terms of either the GPL or the LGPL, and not to allow others to
  31 # use your version of this file under the terms of the MPL, indicate your
  32 # decision by deleting the provisions above and replace them with the notice
  33 # and other provisions required by the GPL or the LGPL. If you do not delete
  34 # the provisions above, a recipient may use your version of this file under
  35 # the terms of any one of the MPL, the GPL or the LGPL.
  36 #
  37 # ***** END LICENSE BLOCK *****
  38
  39 # Usage: apply-ed-patches.pl <source patch> <target directory> <path to ed>
  40
  41 use FileHandle;
  42
  43 sub do_patch {
  44   my ($ed, $target_file, $patch_file, $fh) = @_;
  45   # these keep winding up read only for me
  46   chmod 0666, $target_file;
  47   print $fh "w\n";
  48   $fh->close();
  49   print "$ed - $target_file < $patch_file\n";
  50   system "$ed - $target_file < $patch_file\n";
  51 }
  52
  53 my $header_done = 0;
  54 my ($target_file,$patch_file) = ('','');
  55 my $source_patch = $ARGV[0];
  56 my $srcdir = $ARGV[1];
  57 my $ed = $ARGV[2];
  58 $srcdir = "$srcdir/" unless $srcdir =~ m|/$|;
  59 my $pfh = new FileHandle($source_patch, 'r');
  60 while(<$pfh>) {
  61   # skip initial comment header
  62   next if !$header_done && /^#/;
  63   $header_done = 1;
  64
  65   next if /^Only in/;
  66   if (/^diff -re (\S+)/) {
  67     my $new_file = $1;
  68     $new_file =~ s|^crt/src/||;
  69     $new_file = "$srcdir$new_file";
  70     my $new_patch_file = "$new_file.patch";
  71
  72     if ($target_file ne '') {
  73       do_patch $ed, $target_file, $patch_file, $fh;
  74     }
  75     $target_file = $new_file;
  76     $patch_file = $new_patch_file;
  77     $fh = new FileHandle($patch_file, 'w');
  78     next;
  79   }
  80
  81   print $fh $_ if $fh;
  82 }
  83
  84 do_patch $ed, $target_file, $patch_file, $fh;