Philippe Bruhat (BooK) > SVN-Dump > SVN::Dump

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NAME ^

SVN::Dump - A Perl interface to Subversion dumps

SYNOPSIS ^

    #!/usr/bin/perl
    use strict;
    use warnings;
    use SVN::Dump;
    
    my $file = shift;
    my $dump = SVN::Dump->new( { file => $file } );
    
    # compute some stats
    my %type;
    my %kind;
    while ( my $record = $dump->next_record() ) {
        $type{ $record->type() }++;
        $kind{ $record->get_header('Node-action') }++
            if $record->type() eq 'node';
    }
    
    # print the results
    print "Statistics for dump $file:\n",
          "  version:   ", $dump->version(), "\n",
          "  uuid:      ", $dump->uuid(), "\n",
          "  revisions: ", $type{revision}, "\n",
          "  nodes:     ", $type{node}, "\n";
    print map { sprintf "  - %-7s: %d\n", $_, $kind{$_} } sort keys %kind;

DESCRIPTION ^

An SVN::Dump object represents a Subversion dump.

This module follow the semantics used in the reference document (the file notes/fs_dumprestore.txt in the Subversion source tree):

Each class has a as_string() method that prints its content in the dump format.

The most basic thing you can do with SVN::Dump is simply copy a dump:

    use SVN::Dump;

    my $dump = SVN::Dump->new( 'mydump.svn' );
    print $dump->as_string(); # only print the dump header

    while( $rec = $dump->next_record() ) {
        print $rec->as_string();
    }

After the operation, the resulting dump should be identical to the original dump.

METHODS ^

SVN::Dump provides the following methods:

new( \%args )

Return a new SVN::Dump object.

The argument list is a hash reference.

If the SVN::Dump object will read information from a file, the arguments file is used (as usal, - means STDIN); if the dump is read from a filehandle, fh is used.

Extra options will be passed to the SVN::Dump::Reader object that is created.

If the SVN::Dump isn't used to read information, the parameters version and uuid can be used to initialise the values of the SVN-fs-dump-format-version and UUID headers.

next_record()

Return the next record read from the dump. This is a SVN::Dump::Record object.

version()
format()

Return the dump format version, if the version record has already been read, or if it was given in the constructor.

uuid()

Return the dump UUID, if there is an UUID record and it has been read, or if it was given in the constructor.

as_string()

Return a string representation of the dump specific blocks (the format and uuid blocks only).

SEE ALSO ^

SVN::Dump::Reader, SVN::Dump::Record.

The reference document for Subversion dumpfiles is at: http://svn.apache.org/repos/asf/subversion/trunk/notes/dump-load-format.txt

COPYRIGHT ^

Copyright 2006-2013 Philippe Bruhat (BooK), All Rights Reserved.

LICENSE ^

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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