[Lzip-bug] Lziprecover 1.21 released

[Antonio Diaz Diaz]

I am pleased to announce the release of lziprecover 1.21.

Lziprecover is a data recovery tool and decompressor for files in the 
lzip compressed data format (.lz). Lziprecover is able to repair 
slightly damaged files, produce a correct file by merging the good parts 
of two or more damaged copies, extract data from damaged files, 
decompress files and test integrity of files.

Lziprecover can remove the damaged members from multimember files, for 
example multimember tar.lz archives.

Lziprecover provides random access to the data in multimember files; it 
only decompresses the members containing the desired data.

Lziprecover facilitates the management of metadata stored as trailing 
data in lzip files.

Lziprecover is not a replacement for regular backups, but a last line of 
defense for the case where the backups are also damaged.

Lziprecover is able to recover or decompress files produced by any of 
the compressors in the lzip family; lzip, plzip, minilzip/lzlib, clzip 
and pdlzip.

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

A nice feature of the lzip format is that a corrupt byte is easier to 
repair the nearer it is from the beginning of the file. Therefore, with 
the help of lziprecover, losing an entire archive just because of a 
corrupt byte near the beginning is a thing of the past.

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

The sources can be downloaded from 
http://download.savannah.gnu.org/releases/lzip/lziprecover/

The sha256sums are:
1622440336614bee73542de0461d99141ea1b1bf012fc07bd50d94e434aa34df 
lziprecover-1.21.tar.lz
a2317bd6da78d49d8f9aadd00bd93c2dac7b280b26fbf900563e90efd0179c24 
lziprecover-1.21.tar.gz

This release is also GPG signed. You can download the signature by 
appending '.sig' to the URL. If the 'gpg --verify' command fails because 
you don't have the required public key, then run this command to import it:

  gpg --keyserver keys.gnupg.net --recv-keys 8FE99503132D7742

Key fingerprint = 1D41 C14B 272A 2219 A739  FA4F 8FE9 9503 132D 7742


Changes in version 1.21:

  * The options '--dump', '--remove' and '--strip' have been added, 
mainly as support for the tarlz archive format:
http://www.nongnu.org/lzip/tarlz.html
These options replace '--dump-tdata', '--remove-tdata' and 
'--strip-tdata', which are now aliases and will be removed in version 1.22.

  '--dump=[<member_list>][:damaged][:tdata]' dumps the members listed, 
the damaged members (if any), or the trailing data (if any) of one or 
more regular multimember files to standard output.

  '--remove=[<member_list>][:damaged][:tdata]' removes the members 
listed, the damaged members (if any), or the trailing data (if any) from 
regular multimember files in place.

  '--strip=[<member_list>][:damaged][:tdata]' copies one or more 
regular multimember files to standard output, stripping the members 
listed, the damaged members (if any), or the trailing data (if any) from 
each file.

  * Detection of forbidden combinations of characters in trailing data 
has been improved.

  * '--split' can now detect trailing data and gaps between members, 
and save each gap in its own file. Trailing data (if any) are saved 
alone in the last file. (Gaps may contain garbage or may be members with 
corrupt headers or trailers).

  * '--ignore-errors' now makes '--list' show gaps between members, 
ignoring format errors.

  * '--ignore-errors' now makes '--range-decompress' ignore a truncated 
last member.

  * Errors are now also checked when closing the input file in 
decompression mode.

  * Some diagnostic messages have been improved.

  * '\n' is now printed instead of '\r' when showing progress of merge 
or repair if stdout is not a terminal.

  * Lziprecover now compiles on DOS with DJGPP. (Patch from Robert 
Riebisch).

  * The new chapter 'Tarlz', explaining the ways in which lziprecover 
can recover and process multimember tar.lz archives, has been added to 
the manual.

  * The configure script now accepts appending options to CXXFLAGS 
using the syntax 'CXXFLAGS+=OPTIONS'.

  * It has been documented in INSTALL the use of
    CXXFLAGS+='-D __USE_MINGW_ANSI_STDIO' when compiling on MinGW.


Please send bug reports and suggestions to address@hidden


Regards,
Antonio Diaz, lziprecover author and maintainer.

--
If you care about long-term archiving, please help me replace xz with 
lzip. See http://www.nongnu.org/lzip/lzip_benchmark.html#xz1
http://www.nongnu.org/lzip/manual/lzip_manual.html#Quality-assurance and
http://www.nongnu.org/lzip/xz_inadequate.html Thanks.