summaryrefslogtreecommitdiffstats
path: root/ChangeLog
blob: 7d0eed3abe331afaf4c1300ea3bc3a2df72b953e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
2010-09-16  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 1.11 released.
	* Added new option `-0' which produces a compression speed and
	  ratio comparable to those of `gzip -9'.
	* fast_encoder.h fast_encoder.cc: New files.
	* main.cc: Match length limit set by options -1 to -8 has been
	  reduced to extend range of use towards gzip. Lower numbers now
	  compress less but faster. (-1 now takes 43% less time for only
	  20% larger compressed size).
	* encoder.cc: Compression of option -9 has been slightly increased.
	* lziprecover.cc: Added new option "--merge" which tries to
	  produce a correct file merging the good parts of two or more
	  damaged copies.
	* lziprecover.cc: Added new option "--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 "--force".
	* lziprecover.cc: Added new option "--output".
	* lziprecover.cc: Added new option "--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.
	* main.cc: Fixed warning about fchown's return value being ignored.
	* decoder.cc: "-tvvvv" now also shows compression ratio.
	* main.cc: Set stdin/stdout in binary mode on MSVC and OS2.
	* New examples have been added to the manual.
	* testsuite: "test1" renamed to "test.txt"
	* Matchfinder types HC4 (4 bytes hash-chain) and HT4 (4 bytes
	  hash-table) have been tested and found no better than the
	  current BT4.

2010-04-05  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 1.10 released.
	* decoder.h: Input_buffer integrated in Range_decoder.
	* main.cc: File specified with option "-o" is now created with
	  mode 0666 if umask allows it, deleted if interrupted by user.
	* main.cc: New constant "o_binary".
	* main.cc: Dictionary size for options -2, -3, -4 and -8 has
	  been changed to improve linearity of compressed sizes.
	* lzip.h: Fixed warnings produced by over-optimization (-O3).
	* Makefile.in: Added quotes to directory names.

2010-01-17  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 1.9 released.
	* main.cc (main): Return at least 1 if closing stdout fails.
	* Makefile.in: Added "--name" option to help2man invocation.
	* testsuite/check.sh: Use "test1" instead of "COPYING" for testing.

2009-09-02  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 1.8 released.
	* Compression time has been reduced by 4%.
	* Lzdiff and lzgrep have been moved to the new package zutils.
	* Fixed warnings on sistems where uint32_t != unsigned int.

2009-06-25  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 1.7 released.
	* decoder.h (copy_block): Fixed memcpy overlap introduced in 1.6.

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

	* Version 1.6 released.
	* Decompression time has been reduced by 17%.
	* Added decompression support for Sync Flush marker.
	* Added support for .tbz extension to lzdiff and lzgrep.
	* Added man pages for lzdiff, lzgrep and lziprecover.
	* encoder.cc (Matchfinder): Reduce memory use to 9x if input file
	  is smaller than dictionary size limit.
	* decoder.cc: Added extra flush calls to improve partial
	  decompression of corrupt files.
	* "--test" no more needs "/dev/null".
	* Removed some "bashisms" from lzdiff and lzgrep.
	* Dictionary size for options "-1" to "-4" has been changed.
	* main.cc (signal_handler): Declared as `extern "C"'.
	* Makefile.in: Extra files are now installed by default.
	* testsuite/check.sh: Test lziprecover.
	* Added "export LC_ALL=C" to all scripts.

2009-04-12  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 1.5 released.
	* lzip.h: Coded dictionary size implemented in File_header.
	* Fixed some includes that prevented compilation with GCC 4.4.
	* "member_size" and "volume_size" are now accurate limits.
	* Compression speed has been improved.
	* Implemented bt4 type matchfinder.
	* Added chapter "Algorithm" to the manual.
	* Lzdiff and lzgrep now accept "-h" for "--help" and
	  "-V" for "--version".
	* Makefile.in: Man page is now installed by default.
	* testsuite/check.sh: Verify that files are open in binary mode.

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

	* Version 1.4 released.
	* Implemented compression of version 1 files.
	* Added new option "--member-size".
	* Added new option "--volume-size".
	* Added new option "--output".
	* main.cc: Read from non regular files if "--stdout" is specified.
	* Added "lziprecover", a member recoverer program.
	* testsuite/unzcrash.cc: Test all 1-byte errors.

2008-12-21  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 1.3 released.
	* This version automatically chooses the smallest possible
	  dictionary size for each file during compression, saving
	  memory during decompression.
	* Implemented decompression of version 1 files.
	* testsuite/check.sh: Replaced "diff -q" with "cmp".

2008-12-10  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 1.2 released.
	* encoder.cc: A 1-byte read outside allocated memory has been fixed.
	* lzip.h: Dictionary size limit has been reduced to 512MiB because
	  setting it to 1GiB causes overflow of a 32 bit integer.
	* Added "lzdiff", a diff/cmp wrapper for gzip, bzip2, lzip and
	  non-compressed files.
	* Added "lzgrep", a grep wrapper for gzip, bzip2, lzip and
	  non-compressed files.
	* "make install-info" should now work on Debian and OS X.

2008-11-17  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 1.1 released.
	* Changed short name of option "--dictionary-size" to "-s".
	* Changed short name of option "--match-length" to "-m".
	* Changed LONG_LONG_MAX to LLONG_MAX.

2008-10-14  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 1.0 released.
	* "-tvv" shows file version and dictionary size.

2008-09-30  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 0.5 released.
	* Decompression is now 1% faster.

2008-09-23  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 0.4 released.
	* Code cleanup for global variable "verbosity".
	* Regained the compression ratio of 0.2 with 5% faster speed.
	* Fixed compilation on sistems where size_t != unsigned int.

2008-09-15  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 0.3 released.
	* encoder.cc: Compression is now 15% faster, 1% worse.
	* main.cc (main): Make "-t" option override "-c".
	* main.cc (decompress): Show "done" instead of "ok" when not testing.
	* encoder.h: Use trials[] to return the list of pairs.

2008-09-09  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 0.2 released.
	* encoder.cc: Small improvements in compression speed.
	* Small documentation changes.

2008-08-20  Antonio Diaz Diaz  <ant_diaz@teleline.es>

	* Version 0.1 released.


Copyright (C) 2008, 2009, 2010 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.