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[Lzip-bug] Lzip 1.20-pre2 released


From: Antonio Diaz Diaz
Subject: [Lzip-bug] Lzip 1.20-pre2 released
Date: Wed, 20 Sep 2017 11:39:09 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.9.1.19) Gecko/20110420 SeaMonkey/2.0.14

Lzip 1.20-pre2 is ready for testing here
http://download.savannah.gnu.org/releases/lzip/lzip-1.20-pre2.tar.lz
http://download.savannah.gnu.org/releases/lzip/lzip-1.20-pre2.tar.gz

The sha256sums are:
e97b0677bb5152e9450bb0480d517c4ce658c58a042867df7729e745c20b0c70 lzip-1.20-pre2.tar.lz 6fb5de275d79268fbb0ec27c7a5c2be7bd783e5efe2da6535c22ec45632f2f68 lzip-1.20-pre2.tar.gz

Please, test it and report any bugs you find.

Lzip is a lossless data compressor with a user interface similar to the one of gzip or bzip2. Lzip can compress about as fast as gzip (lzip -0), or compress most files more than bzip2 (lzip -9). Decompression speed is intermediate between gzip and bzip2. Lzip is better than gzip and bzip2 from a data recovery perspective.

The lzip file format is designed for data sharing and long-term archiving, taking into account both data integrity and decoder availability:

  * The lzip format provides very safe integrity checking and some data
    recovery means. The lziprecover program can repair bit-flip errors
    (one of the most common forms of data corruption) in lzip files,
    and provides data recovery capabilities, including error-checked
    merging of damaged copies of a file.

  * The lzip format is as simple as possible (but not simpler). The
    lzip manual provides the source code of a simple decompressor along
    with a detailed explanation of how it works, so that with the only
    help of the lzip manual it would be possible for a digital
    archaeologist to extract the data from a lzip file long after
    quantum computers eventually render LZMA obsolete.

  * Additionally the lzip reference implementation is copylefted, which
    guarantees that it will remain free forever.

The homepage is at http://www.nongnu.org/lzip/lzip.html

Changes in this version:

* The 'bits/byte' ratio has been replaced with the inverse compression ratio in the output. The output of lzip now looks like this:

    lzip -v foo
      foo:  6.676:1, 14.98% ratio, 85.02% saved, 450560 in, 67493 out.

* The progress of decompression is now shown at verbosity level 2 (-vv) or higher.

  * Progress of (de)compression is only shown if stderr is a terminal.

* A final diagnostic is now shown at verbosity level 1 (-v) or higher if any file fails the test when testing multiple files.

* A second '.lz' extension is no longer added to the argument of '-o' if it already ends in '.lz' or '.tlz'.

* In case of (de)compressed size mismatch, the stored size is now also shown in hexadecimal to ease visual comparison.

* The dictionary size is now shown at verbosity level 4 (-vvvv) when decompressing or testing. (Before it was shown at level 3).

* The new chapter "Meaning of lzip's output" has been added to the manual.


Regards,
Antonio Diaz, lzip author and maintainer.

--
If you are distributing software in xz format, please consider using lzip instead. See http://www.nongnu.org/lzip/xz_inadequate.html#fragmented and http://www.nongnu.org/lzip/lzip_benchmark.html#busybox




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