I am pleased to announce the release of libchop 0.5.2. 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.
Here are the compressed sources: http://dl.sv.nongnu.org/releases/libchop/libchop-0.5.2.tar.gz (1.3MB) Here are the GPG detached signatures[*]: http://dl.sv.nongnu.org/releases/libchop/libchop-0.5.2.tar.gz.sig Here are the MD5 and SHA1 checksums: 9fa7e71a8360ba5d792217c06ca44cf5 libchop-0.5.2.tar.gz 8369c67aeeee507bf4825d9c0ce44c9d164b30ef libchop-0.5.2.tar.gz This release was bootstrapped with the following tools: Autoconf 2.68 Automake 1.11.2 Libtool 2.4 Gnulib v0.0-6392-g4f11d6b Libchop’s main application is ‘chop-backup’, an encrypted backup program with support for versioning, selective sharing, and adaptive compression. 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. This release is primarily a bug-fix release, with a few new features. Excerpt from the ‘NEWS’ file: * Changes in 0.5.2 (since 0.5.1) ** New features *** chop-backup **** New `--log' option This option shows a change log for a directory backup, similar in spirit to the `git whatchanged' command. **** New `--backup=repair' suboption Repair all the blocks of files in a directory backup, at the expense of increased CPU and bandwidth usage. **** New `--backup=verbose' suboption **** The same tuple is returned when a directory is unchanged Previously `chop-backup --backup' would return a different tuple each time a directory is backed up, regardless of whether it actually changed. While the previous introduced negligible storage overhead, because the actual data was not duplicated, it led to uselessly longer version chains and counter-intuitive behavior. **** Improved error diagnostics for the `--backup' operation `chop-backup --backup' now warns about directories that cannot be accessed; when a unreadable file is encountered, an error message is emitted and `chop-backup' exits. **** Improved test suite framework `chop-backup' now has an additional Scheme-level test suite, under `tests/utils/backup'. **** Documentation improvements ** Bug fixes *** Fix memory leak in the Guile bindings This could lead to unbounded memory growth, for instance when storing many files where each needed a zip filter. *** A couple of Guile bugs were exposed, which were fixed in Guile 2.0.5 Thus, GNU Guile >= 2.0.5 is now required. Feedback welcome! Thanks, Ludo’.
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