lziprecover/ChangeLog

2018-02-12  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.20 released.
	* split.cc: Fixed splitting of files > 64 KiB broken since 1.16.
	* main.cc: Added new option '--dump-tdata'.
	* main.cc: Added new option '--remove-tdata'.
	* main.cc: Added new option '--strip-tdata'.
	* main.cc: Added new option '--loose-trailing'.
	* Improved corrupt header detection to HD=3.
	* main.cc: Show corrupt or truncated header in multimember file.
	* Replaced 'bits/byte' with inverse compression ratio in output.
	* Show progress of decompression at verbosity level 2 (-vv).
	* Show progress of decompression only if stderr is a terminal.
	* main.cc: Show final diagnostic when testing multiple files.
	* decoder.cc (verify_trailer): Show stored sizes also in hex.
	  Show dictionary size at verbosity level 4 (-vvvv).

2017-04-10  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.19 released.
	* merge.cc: Fix members with thousands of scattered errors.
	* Option '-a' now works with '-l' and '-D'.
	* The output of option '-l, --list' has been simplified.
	* main.cc: Continue testing if any input file is a terminal.
	* main.cc: Show trailing data in both hexadecimal and ASCII.
	* file_index.cc: Improve detection of bad dict and trailing data.
	* file_index.cc: Skip trailing data more efficiently.
	* lzip.h: Unified messages for bad magic, trailing data, etc.
	* New struct Bad_byte allows delta and flip modes for bad_value.
	* unzcrash.cc: Added new option '-e, --set-byte'.

2016-05-12  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.18 released.
	* main.cc: Added new option '-a, --trailing-error'.
	* merge.cc (open_input_files): Use CRC to test identical files.
	* repair.cc (repair_file): Detect gross damage before repairing.
	* repair.cc: Repair a damaged dictionary size in the header.
	* repair.cc: Try bytes at offsets 7 to 11 first.
	* Decompression time has been reduced by 2%.
	* main.cc (decompress): Print up to 6 bytes of trailing data
	  when '-tvvvv' is specified.
	* decoder.cc (verify_trailer): Removed test of final code.
	* main.cc (main): Delete '--output' file if infd is a terminal.
	* main.cc (main): Don't use stdin more than once.
	* Use 'close_and_set_permissions' and 'set_signals' in all modes.
	* range_dec.cc (list_file): Show dictionary size and size of
	  trailing data (if any) with '-lv'.
	* Added new option '-A, --alone-to-lz'.
	* Added new option '-W, --debug-decompress'.
	* Added new option '-X, --show-packets'.
	* Changed short name of option '--debug-delay' to '-Y'.
	* Changed short name of option '--debug-repair' to '-Z'.
	* unzcrash.cc: Added new option '-B, --block'.
	* unzcrash.cc: Added new option '-d, --delta'.
	* unzcrash.cc: Added new option '-t, --truncate'.
	* unzcrash.cc: Added new option '-z, --zcmp'.
	* unzcrash.cc: Read files as large as RAM allows.
	* unzcrash.cc: Compare output using zcmp if decompressor returns 0.
	* unzcrash.cc: Accept negative position and size.
	* lzip.texi: Added chapter 'Trailing data'.
	* configure: Avoid warning on some shells when testing for g++.
	* Makefile.in: Detect the existence of install-info.
	* check.sh: Don't check error messages.
	* check.sh: A POSIX shell is required to run the tests.

2015-05-28  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.17 released.
	* New block selection algorithm makes merge up to 100 times faster.
	* repair.cc: Repair time has been reduced by 15%.
	* Added new option '-y, --debug-delay'.
	* Added new option '-z, --debug-repair'.
	* Makefile.in: Added new targets 'install*-compress'.
	* testsuite/unzcrash.cc: Moved to top directory.
	* lziprecover.texi: Added chapter 'File names'.

2014-08-29  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.16 released.
	* New class LZ_mtester makes repair up to 10 times faster.
	* main.cc (close_and_set_permissions): Behave like 'cp -p'.
	* lziprecover.texinfo: Renamed to lziprecover.texi.
	* License changed to GPL version 2 or later.

2013-09-14  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.15 released.
	* repair.cc: Repair multimember files with up to one byte error
	  per member.
	* merge.cc: Merge multimember files.
	* main.cc (show_header): Don't show header version.
	* lziprecover.texinfo: Added chapters 'Repairing files',
	  'Merging files' and 'Unzcrash'.

2013-05-31  Antonio Diaz Diaz  <antonio@gnu.org>

	* Version 1.14 released.
	* Added new option '-i, --ignore-errors'.
	* Option '-l, --list' now accepts more than one file.
	* Decompression time has been reduced by 12%.
	* split.cc: Use as few digits as possible in file names.
	* split.cc: In verbose mode show names of files being created.
	* main.cc (show_header): Show header version if verbosity >= 4.
	* configure: Options now accept a separate argument.
	* Makefile.in: Added new targets 'install-as-lzip', 'install-bin'.
	* main.cc: Use 'setmode' instead of '_setmode' on Windows and OS/2.

2012-02-24  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 1.13 released.
	* Lziprecover is now distributed in its own package. Until
	  version 1.12 it was included in the lzip package. Previous
	  entries in this file are taken from there.
	* lziprecover.cc: Renamed to main.cc.
	* New files merge.cc, repair.cc, split.cc, and range_dec.cc.
	* main.cc: Added decompressor options (-c, -d, -k, -t) so that
	  a external decompressor is not needed for recovery nor for
	  "make check".
	* Added new option '-D, --range-decompress' which extracts a
	  range of bytes decompressing only the members containing the
	  desired data.
	* Added new option '-l, --list' which prints correct total file
	  sizes even for multimember files.
	* merge.cc repair.cc: Remove output file if recovery fails.
	* Changed quote characters in messages as advised by GNU Standards.
	* split.cc: Use Boyer-Moore algorithm to search for headers.
	* configure: 'datadir' renamed to 'datarootdir'.

2011-04-30  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 1.12 released.
	* lziprecover.cc: If '-v' is not specified show errors only.
	* unzcrash.cc: Use Arg_parser.
	* unzcrash.cc: Added new option '-b, --bits'.
	* unzcrash.cc: Added new option '-p, --position'.
	* unzcrash.cc: Added new option '-s, --size'.

2010-09-16  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 1.11 released.
	* lziprecover.cc: Added new option '-m, --merge' which tries to
	  produce a correct file merging the good parts of two or more
	  damaged copies.
	* lziprecover.cc: Added new option '-R, --repair' for repairing
	  a 1-byte error in single-member files.
	* decoder.cc (decode_member): Detect file errors earlier to
	  improve efficiency of lziprecover's new repair capability.
	  This change also prevents (harmless) access to uninitialized
	  memory when decompressing a corrupt file.
	* lziprecover.cc: Added new option '-f, --force'.
	* lziprecover.cc: Added new option '-o, --output'.
	* lziprecover.cc: Added new option '-s, --split' to select the
	  until now only operation of splitting multimember files.
	* lziprecover.cc: If no operation is specified, warn the user
	  and do nothing.

2009-06-22  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 1.6 released.
	* Added man page for lziprecover.
	* check.sh: Test lziprecover.

2009-01-24  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 1.4 released.
	* Added 'lziprecover', a member recoverer program.
	* unzcrash.cc: Test all 1-byte errors.


Copyright (C) 2009-2018 Antonio Diaz Diaz.

This file is a collection of facts, and thus it is not copyrightable,
but just in case, you have unlimited permission to copy, distribute and
modify it.