williamr/compare_7z_listings.pl
author William Roberts <williamr@symbian.org>
Mon, 01 Feb 2010 12:04:35 +0000
changeset 139 7b2d146ef884
parent 2 a600c1a596f7
permissions -rw-r--r--
version 0.3 - add command line processing, --dryrun option, --nosrc option Make sure that outstanding unzip commands are completed before unpacking "patch" files Refactor the unzipping, to implement dryrun and give scope for throttling the number of unzips in progress

#!/usr/bin/perl

# Copyright (c) 2009 Symbian Foundation Ltd
# This component and the accompanying materials are made available
# under the terms of the License "Eclipse Public License v1.0"
# which accompanies this distribution, and is available
# at the URL "http://www.eclipse.org/legal/epl-v10.html".
#
# Initial Contributors:
# Symbian Foundation Ltd - initial contribution.
# 
# Contributors:
#
# Description:
# Compare two 7z listings, looking for files present in both

use strict;

my %first_files;
my $line;
my $file_index = -1;

while ($line=<>)
  {
  
  if ($line =~ /^Listing archive/)
    {
    $file_index++;
    print "$file_index: Processing $line";
    next;
    }

  # 2009-04-30 11:26:58 D....            0            0  epoc32\cshlpcmp_template
  # 2009-03-20 22:22:18 .....        72192        16307  epoc32\cshlpcmp_template\cshelp2000.dot
  
  next if (length($line) < 54);
  
  my $dir_attribute = substr($line, 20, 1);  
  if ($dir_attribute eq ".")
    {
    chomp $line;
    my $fullpath = substr($line, 53);
    
    if ($file_index == 0)
      {
      # first file
      $first_files{$fullpath} = $line;
      next;
      }
    if (defined $first_files{$fullpath})
      {
      print "Duplicate filename: $fullpath\n";
      print "\t$first_files{$fullpath}\n\t$line\n";
      next
      }
    }
  }