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              package C4::Installer::UpgradeBackup;  | 
            
            
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              # Copyright (C) 2008 LibLime  | 
            
            
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              #  | 
            
            
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              # This file is part of Koha.  | 
            
            
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              #  | 
            
            
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              # Koha is free software; you can redistribute it and/or modify it  | 
            
            
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              # under the terms of the GNU General Public License as published by  | 
            
            
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              # the Free Software Foundation; either version 3 of the License, or  | 
            
            
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              # (at your option) any later version.  | 
            
            
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              #  | 
            
            
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              # Koha is distributed in the hope that it will be useful, but  | 
            
            
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              # WITHOUT ANY WARRANTY; without even the implied warranty of  | 
            
            
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              # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the  | 
            
            
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              # GNU General Public License for more details.  | 
            
            
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              #  | 
            
            
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              # You should have received a copy of the GNU General Public License  | 
            
            
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              # along with Koha; if not, see <http://www.gnu.org/licenses>.  | 
            
            
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              use strict;  | 
            
            
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              #use warnings; FIXME - Bug 2505  | 
            
            
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              use File::Compare qw(compare);  | 
            
            
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              use Cwd qw(cwd);  | 
            
            
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              use File::Copy;  | 
            
            
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              use File::Find;  | 
            
            
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              use File::Spec;  | 
            
            
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              use Exporter;  | 
            
            
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              use vars qw(@ISA @EXPORT );  | 
            
            
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              @ISA = ('Exporter'); | 
            
            
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              @EXPORT = ('backup_changed_files'); | 
            
            
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              =head1 NAME  | 
            
            
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              C4::Installer::UpgradeBackup  | 
            
            
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              =head1 DESCRIPTION  | 
            
            
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              This is a helper module used during a 'make upgrade' that  | 
            
            
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              creates backups of files updated during an upgrade.  | 
            
            
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              =cut  | 
            
            
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              sub backup_changed_files { | 
            
            
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                  my $from_to = shift;  | 
            
            
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                  my $suffix = shift;  | 
            
            
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                  my $verbose = shift;  | 
            
            
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                  my $inc_uninstall = shift;  | 
            
            
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                  my $cwd = cwd();  | 
            
            
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                  foreach my $sourceroot (sort keys %$from_to) { | 
            
            
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                      my $targetroot = $from_to->{$sourceroot}; | 
            
            
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                      my $currdir = File::Spec->catdir($cwd, $sourceroot);  | 
            
            
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                      next unless -d $currdir;  | 
            
            
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                      chdir $currdir or die "could not change to $currdir: $!";  | 
            
            
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                       | 
            
            
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                      # expand path  | 
            
            
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                      find(sub { | 
            
            
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                          return unless -f $_;  | 
            
            
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                          my $filename = $_;  | 
            
            
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                          my $targetdir  = File::Spec->catdir($targetroot, $File::Find::dir);  | 
            
            
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                          my $targetfile = File::Spec->catfile($targetdir, $filename);  | 
            
            
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                          my $sourcedir  = File::Spec->catdir($currdir, $File::Find::dir);  | 
            
            
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                          my $sourcefile = File::Spec->catfile($sourcedir, $filename);  | 
            
            
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                          if (-f $targetfile) { | 
            
            
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                              my ($size) = (stat $sourcefile)[7];  | 
            
            
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                              my $backup = $targetfile . $suffix;  | 
            
            
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                              unless (-s $targetfile == $size and not compare($sourcefile, $targetfile)) { | 
            
            
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                                  print "Backed up $targetfile to $backup\n";  | 
            
            
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                                  File::Copy::copy($targetfile, $backup);          | 
            
            
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                              }  | 
            
            
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                          }  | 
            
            
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                      }, ".");  | 
            
            
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                  }  | 
            
            
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              }  | 
            
            
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              =head1 AUTHOR  | 
            
            
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              Code based on parts of ExtUtils::Install in order to  | 
            
            
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              approximately track how it identifies files to  | 
            
            
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              install.  | 
            
            
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               | 
            
            
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              Koha Development Team <http://koha-community.org/>  | 
            
            
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              Galen Charlton <galen.charlton@liblime.com>  | 
            
            
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              =cut  | 
            
            
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              1;  |