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[ANN] libchop 0.5, tools & library for data backup and distributed stora
[ANN] libchop 0.5, tools & library for data backup and distributed storage
Sat, 08 Oct 2011 15:27:35 +0200
Gnus/5.110018 (No Gnus v0.18) Emacs/24.0.90 (gnu/linux)
I am pleased to announce the release of libchop 0.5. Libchop is a set
of tools, including an encrypted backup application, as well as a C and
Scheme library aimed as a building block for distributed data storage
and data backup applications.
The homepage is located at:
Here are the compressed sources:
Here are the GPG detached signatures[*]:
Here are the MD5 and SHA1 checksums:
This release was bootstrapped with the following tools:
Libchop’s main application is ‘chop-backup’, an encrypted backup program
with support for versioning, selective sharing, and adaptive
compression. It is the main new feature of this release.
The library itself, which chop-backup builds upon, implements storage
techniques such as content-based addressing, content hash keys, Merkle
trees, similarity detection, and lossless compression. It makes it easy
to combine them in different ways. The ‘chop-archiver’ and
‘chop-block-server’ tools, illustrated in the manual, provide direct
access to these facilities from the command line.
Excerpt from the ‘NEWS’ file:
* New features
** New encrypted backup utility: `chop-backup'
See the manual for details.
** The `-z' option of `chop-archiver' now also applies to meta-data
In other words, the zip/unzip filters are now applied both to data and
meta-data when a specific store is specified with `-f'.
** Guile bindings: New procedures `make-zip-filter' and `make-unzip-filter'
* Bug fixes
** Fix off-by-one in `fs_block_store'
** Fix return value of `fs_block_store.read_block' with non-existent blocks
** Fix off-by-n in ASCII deserialization of CHK/hash index handles
** Fix possible infinite loop in `lzo_unzip_filter'
** guile2: Have `stream->port' let unhandled exceptions through
** G-Wrap-based Guile 1.8 bindings removed
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Ludovic Courtès <=