williamr/compare_7z_listings.pl
author William Roberts <williamr@symbian.org>
Fri, 27 Aug 2010 15:27:06 +0100
changeset 281 c62bd4f9dbce
parent 2 a600c1a596f7
permissions -rw-r--r--
Add delete_builds.pl - a utility for making space quickly on build machines This Perl script deletes some directories known to contain very large files first, before deleting the rest of the build which contains millions of small files. Given multiple builds, it will do this breadth first, so that lost of space is released quickly.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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#!/usr/bin/perl
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# Copyright (c) 2009 Symbian Foundation Ltd
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# This component and the accompanying materials are made available
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# under the terms of the License "Eclipse Public License v1.0"
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# which accompanies this distribution, and is available
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# at the URL "http://www.eclipse.org/legal/epl-v10.html".
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#
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# Initial Contributors:
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# Symbian Foundation Ltd - initial contribution.
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# 
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# Contributors:
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#
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# Description:
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# Compare two 7z listings, looking for files present in both
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use strict;
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my %first_files;
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my $line;
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my $file_index = -1;
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while ($line=<>)
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  {
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  if ($line =~ /^Listing archive/)
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    {
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    $file_index++;
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    print "$file_index: Processing $line";
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    next;
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    }
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  # 2009-04-30 11:26:58 D....            0            0  epoc32\cshlpcmp_template
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  # 2009-03-20 22:22:18 .....        72192        16307  epoc32\cshlpcmp_template\cshelp2000.dot
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  next if (length($line) < 54);
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  my $dir_attribute = substr($line, 20, 1);  
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  if ($dir_attribute eq ".")
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    {
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    chomp $line;
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    my $fullpath = substr($line, 53);
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    if ($file_index == 0)
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      {
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      # first file
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      $first_files{$fullpath} = $line;
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      next;
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      }
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    if (defined $first_files{$fullpath})
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      {
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      print "Duplicate filename: $fullpath\n";
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      print "\t$first_files{$fullpath}\n\t$line\n";
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      next
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      }
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    }
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  }
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