Steven Haryanto > File-Copy-Undoable-0.04 > File::Copy::Undoable

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Module Version: 0.04   Source  

NAME ^

File::Copy::Undoable - Copy file/directory using rsync, with undo support

VERSION ^

version 0.04

FAQ ^

Why do you use rsync? Why not, say, File::Copy::Recursive?

With rsync, we can continue interrupted transfer. We need this ability for recovery. Also, rsync can handle hardlinks and preservation of ownership, something which File::Copy::Recursive currently does not do. And, being implemented in C, it might be faster when processing large files/trees.

SEE ALSO ^

Setup

Rinci::Transaction

AUTHOR ^

Steven Haryanto <stevenharyanto@gmail.com>

COPYRIGHT AND LICENSE ^

This software is copyright (c) 2013 by Steven Haryanto.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

DESCRIPTION ^

FUNCTIONS ^

None are exported by default, but they are exportable.

cp(%args) -> [status, msg, result, meta]

On do, will copy source to target (which must not exist beforehand). On undo, will trash target.

Fixed state: source exists and target exists. Content or sizes are not checked; only existence.

Fixable state: source exists and target doesn't exist.

Unfixable state: source does not exist.

This function is idempotent (repeated invocations with same arguments has the same effect as single invocation). This function supports transactions.

Arguments ('*' denotes required arguments):

Special arguments:

Return value:

Returns an enveloped result (an array). First element (status) is an integer containing HTTP status code (200 means OK, 4xx caller error, 5xx function error). Second element (msg) is a string containing error message, or 'OK' if status is 200. Third element (result) is optional, the actual result. Fourth element (meta) is called result metadata and is optional, a hash that contains extra information.

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