solenv/bin/diffmv.pl

   1 :
   2     eval 'exec perl -S $0 ${1+"$@"}'
   3         if 0;
   4 #
   5 # This file is part of the LibreOffice project.
   6 #
   7 # This Source Code Form is subject to the terms of the Mozilla Public
   8 # License, v. 2.0. If a copy of the MPL was not distributed with this
   9 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
  10 #
  11 # This file incorporates work covered by the following license notice:
  12 #
  13 #   Licensed to the Apache Software Foundation (ASF) under one or more
  14 #   contributor license agreements. See the NOTICE file distributed
  15 #   with this work for additional information regarding copyright
  16 #   ownership. The ASF licenses this file to you under the Apache
  17 #   License, Version 2.0 (the "License"); you may not use this file
  18 #   except in compliance with the License. You may obtain a copy of
  19 #   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  20 #
  21
  22
  23 my ( $srcfile, $destfile ) = @ARGV;
  24 my ( @srclines, @destlines );
  25 my $dest_existing = 0;
  26 @destlines = ();
  27
  28 usage() if ( ! defined $srcfile || ! defined $destfile);
  29
  30 open(SRCFILE, "$srcfile") or die "ERROR: Can't open $srcfile\n";
  31 @srclines = <SRCFILE>;
  32 close SRCFILE;
  33
  34 if ( -f $destfile ) {
  35     open(DESTFILE, "$destfile") or die "ERROR: Can't open $destfile\n";
  36     @destlines = <DESTFILE>;
  37     close DESTFILE;
  38     $dest_existing = 1;
  39 }
  40
  41 if ( ! check_if_lists_equal(\@srclines,  \@destlines) ) {
  42     print STDERR "Updating \"$destfile\".\n";
  43     unlink "$destfile" or die "ERROR: Can't remove old $destfile\n" if ( $dest_existing );
  44     rename "$srcfile", "$destfile" or die "ERROR: Can't rename $srcfile to $destfile\n";
  45 } else {
  46     print STDERR "\"$destfile\" unchanged.\n";
  47 }
  48
  49 sub check_if_lists_equal
  50 {
  51     my  ( $srclist_ref, $destlist_ref ) = @_;
  52     my @srclist  = @{ $srclist_ref };
  53     my @destlist  = @{ $destlist_ref };
  54     return  0 if ( $#srclist != $#destlist );
  55     for ( my $i = 0; $i  < $#srclist; $i++ ) {
  56         return 0 if  ( $srclist[$i] ne $destlist[$i]);
  57     }
  58     return  1;
  59 }
  60
  61 sub usage
  62 {
  63     print STDERR "Usage: diffmv sourcefile destfile\n";
  64     print STDERR "Do move diffing file only\n";
  65     exit 1;
  66 }
  67