Adding upstream version 0.8.
Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
parent
74877b08a1
commit
6b2e53e60c
GPG key ID:
FBB4F0E80A80222F
15 changed files with 391 additions and 272 deletions
19
doc/plzip.1
19
doc/plzip.1
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@ -1,5 +1,5 @@
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.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.37.1.
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.TH PLZIP "1" "December 2010" "Plzip 0.7" "User Commands"
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.TH PLZIP "1" "January 2012" "Plzip 0.8" "User Commands"
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.SH NAME
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Plzip \- reduces the size of files
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.SH SYNOPSIS
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@ -15,7 +15,7 @@ display this help and exit
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\fB\-V\fR, \fB\-\-version\fR
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output version information and exit
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.TP
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\fB\-B\fR, \fB\-\-data\-size=\fR<n>
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\fB\-B\fR, \fB\-\-data\-size=\fR<bytes>
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set input data block size in bytes
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.TP
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\fB\-c\fR, \fB\-\-stdout\fR
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@ -27,10 +27,13 @@ decompress
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\fB\-f\fR, \fB\-\-force\fR
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overwrite existing output files
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.TP
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\fB\-F\fR, \fB\-\-recompress\fR
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force recompression of compressed files
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.TP
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\fB\-k\fR, \fB\-\-keep\fR
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keep (don't delete) input files
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.TP
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\fB\-m\fR, \fB\-\-match\-length=\fR<n>
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\fB\-m\fR, \fB\-\-match\-length=\fR<bytes>
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set match length limit in bytes [36]
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.TP
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\fB\-n\fR, \fB\-\-threads=\fR<n>
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@ -42,7 +45,7 @@ if reading stdin, place the output into <file>
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\fB\-q\fR, \fB\-\-quiet\fR
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suppress all messages
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.TP
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\fB\-s\fR, \fB\-\-dictionary\-size=\fR<n>
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\fB\-s\fR, \fB\-\-dictionary\-size=\fR<bytes>
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set dictionary size limit in bytes [8MiB]
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.TP
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\fB\-t\fR, \fB\-\-test\fR
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@ -64,6 +67,10 @@ If no file names are given, plzip compresses or decompresses
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from standard input to standard output.
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Numbers may be followed by a multiplier: k = kB = 10^3 = 1000,
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Ki = KiB = 2^10 = 1024, M = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc...
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The bidimensional parameter space of LZMA can't be mapped to a linear
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scale optimal for all files. If your files are large, very repetitive,
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etc, you may need to use the \fB\-\-match\-length\fR and \fB\-\-dictionary\-size\fR
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options directly to achieve optimal performance.
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.SH "REPORTING BUGS"
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Report bugs to lzip\-bug@nongnu.org
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.br
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@ -71,8 +78,8 @@ Plzip home page: http://www.nongnu.org/lzip/plzip.html
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.SH COPYRIGHT
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Copyright \(co 2009 Laszlo Ersek.
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.br
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Copyright \(co 2010 Antonio Diaz Diaz.
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Using Lzlib 1.1\-rc1
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Copyright \(co 2012 Antonio Diaz Diaz.
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Using Lzlib 1.3\-rc1
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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.br
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This is free software: you are free to change and redistribute it.
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@ -12,7 +12,7 @@ File: plzip.info, Node: Top, Next: Introduction, Up: (dir)
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Plzip Manual
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************
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This manual is for Plzip (version 0.7, 3 December 2010).
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This manual is for Plzip (version 0.8, 17 January 2012).
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* Menu:
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@ -24,7 +24,7 @@ This manual is for Plzip (version 0.7, 3 December 2010).
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* Concept Index:: Index of concepts
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Copyright (C) 2009, 2010 Antonio Diaz Diaz.
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Copyright (C) 2009, 2010, 2011, 2012 Antonio Diaz Diaz.
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This manual is free documentation: you have unlimited permission to
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copy, distribute and modify it.
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@ -39,7 +39,7 @@ Plzip is a massively parallel (multi-threaded), lossless data compressor
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based on the lzlib compression library, with very safe integrity
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checking and a user interface similar to the one of bzip2, gzip or lzip.
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Plzip uses the lzip file format; the files produced by plzip are fully
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compatible with lzip-1.4 or newer.
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compatible with lzip-1.4 or newer, and can be rescued with lziprecover.
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Plzip is intended for faster compression/decompression of big files
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on multiprocessor machines, which makes it specially well suited for
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@ -106,8 +106,8 @@ The format for running plzip is:
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`--version'
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Print the version number of plzip on the standard output and exit.
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`-B'
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`--data-size=SIZE'
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`-B BYTES'
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`--data-size=BYTES'
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Set the input data block size in bytes. The input file will be
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divided in chunks of this size before compression is performed.
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Valid values range from 8KiB to 1GiB. Default value is two times
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@ -125,21 +125,27 @@ The format for running plzip is:
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`-f'
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`--force'
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Force overwrite of output file.
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Force overwrite of output files.
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`-F'
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`--recompress'
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Force recompression of files whose name already has the `.lz' or
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`.tlz' suffix.
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`-k'
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`--keep'
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Keep (don't delete) input files during compression or
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decompression.
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`-m LENGTH'
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`--match-length=LENGTH'
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Set the match length limit in bytes. Valid values range from 5 to
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273. Larger values usually give better compression ratios but
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longer compression times.
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`-m BYTES'
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`--match-length=BYTES'
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Set the match length limit in bytes. After a match this long is
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found, the search is finished. Valid values range from 5 to 273.
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Larger values usually give better compression ratios but longer
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compression times.
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`-n THREADS'
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`--threads=THREADS'
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`-n N'
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`--threads=N'
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Set the number of worker threads. Valid values range from 1 to "as
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many as your system can support". If this option is not used,
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plzip tries to detect the number of processors in the system and
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@ -156,24 +162,35 @@ The format for running plzip is:
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`--quiet'
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Quiet operation. Suppress all messages.
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`-s SIZE'
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`--dictionary-size=SIZE'
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`-s BYTES'
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`--dictionary-size=BYTES'
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Set the dictionary size limit in bytes. Valid values range from
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4KiB to 512MiB. Note that dictionary sizes are quantized. If the
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specified size does not match one of the valid sizes, it will be
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rounded upwards.
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4KiB to 512MiB. Plzip will use the smallest possible dictionary
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size for each member without exceeding this limit. Note that
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dictionary sizes are quantized. If the specified size does not
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match one of the valid sizes, it will be rounded upwards by adding
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up to (BYTES / 16) to it.
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For maximum compression you should use a dictionary size limit as
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large as possible, but keep in mind that the decompression memory
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requirement is affected at compression time by the choice of
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dictionary size limit.
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`-t'
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`--test'
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Check integrity of the specified file(s), but don't decompress
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them. This really performs a trial decompression and throws away
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the result. Use `-tvv' or `-tvvv' to see information about the
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file.
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the result. Use it together with `-v' to see information about
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the file.
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`-v'
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`--verbose'
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Verbose mode. Show the compression ratio for each file processed.
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Further -v's increase the verbosity level.
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Verbose mode.
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When compressing, show the compression ratio for each file
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processed.
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When decompressing or testing, further -v's (up to 4) increase the
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verbosity level, showing status, compression ratio, decompressed
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size, and compressed size.
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`-1 .. -9'
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Set the compression parameters (dictionary size and match length
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@ -265,13 +282,13 @@ additional information before, between, or after them.
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All multibyte values are stored in little endian order.
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`ID string'
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A four byte string, identifying the member type, with the value
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A four byte string, identifying the lzip format, with the value
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"LZIP".
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`VN (version number, 1 byte)'
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Just in case something needs to be modified in the future. Valid
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values are 0 and 1. Version 0 files have only one member and lack
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`Member size'.
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values are 0 and 1. Version 0 files are deprecated. They can
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contain only one member and lack the `Member size' field.
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`DS (coded dictionary size, 1 byte)'
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Bits 4-0 contain the base 2 logarithm of the base dictionary size.
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@ -292,7 +309,7 @@ additional information before, between, or after them.
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`Member size (8 bytes)'
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Total size of the member, including header and trailer. This
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facilitates safe recovery of undamaged members from multimember
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facilitates safe recovery of undamaged members from multi-member
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files.
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@ -334,11 +351,16 @@ Concept Index
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Tag Table:
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Node: Top223
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Node: Introduction833
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Node: Invoking Plzip3592
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Node: Program Design7840
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Node: File Format8502
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Node: Problems10458
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Node: Concept Index10987
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Node: Introduction845
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Node: Invoking Plzip3641
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Node: Program Design8597
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Node: File Format9259
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Node: Problems11254
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Node: Concept Index11783
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End Tag Table
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Local Variables:
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coding: iso-8859-15
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End:
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@ -1,12 +1,13 @@
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\input texinfo @c -*-texinfo-*-
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@c %**start of header
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@setfilename plzip.info
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@documentencoding ISO-8859-15
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@settitle Plzip Manual
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@finalout
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@c %**end of header
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@set UPDATED 3 December 2010
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@set VERSION 0.7
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@set UPDATED 17 January 2012
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@set VERSION 0.8
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@dircategory Data Compression
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@direntry
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@ -43,7 +44,7 @@ This manual is for Plzip (version @value{VERSION}, @value{UPDATED}).
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@end menu
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@sp 1
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Copyright @copyright{} 2009, 2010 Antonio Diaz Diaz.
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Copyright @copyright{} 2009, 2010, 2011, 2012 Antonio Diaz Diaz.
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This manual is free documentation: you have unlimited permission
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to copy, distribute and modify it.
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@ -57,7 +58,7 @@ Plzip is a massively parallel (multi-threaded), lossless data compressor
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based on the lzlib compression library, with very safe integrity
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checking and a user interface similar to the one of bzip2, gzip or lzip.
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Plzip uses the lzip file format; the files produced by plzip are fully
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compatible with lzip-1.4 or newer.
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compatible with lzip-1.4 or newer, and can be rescued with lziprecover.
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Plzip is intended for faster compression/decompression of big files on
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multiprocessor machines, which makes it specially well suited for
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@ -131,8 +132,8 @@ Print an informative help message describing the options and exit.
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@itemx --version
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Print the version number of plzip on the standard output and exit.
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@item -B
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@itemx --data-size=@var{size}
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@item -B @var{bytes}
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@itemx --data-size=@var{bytes}
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Set the input data block size in bytes. The input file will be divided
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in chunks of this size before compression is performed. Valid values
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range from 8KiB to 1GiB. Default value is two times the dictionary size.
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@ -150,20 +151,25 @@ Decompress.
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@item -f
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@itemx --force
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Force overwrite of output file.
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Force overwrite of output files.
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@item -F
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@itemx --recompress
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Force recompression of files whose name already has the @samp{.lz} or
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@samp{.tlz} suffix.
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@item -k
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@itemx --keep
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Keep (don't delete) input files during compression or decompression.
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@item -m @var{length}
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@itemx --match-length=@var{length}
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Set the match length limit in bytes. Valid values range from 5 to 273.
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Larger values usually give better compression ratios but longer
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compression times.
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@item -m @var{bytes}
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@itemx --match-length=@var{bytes}
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Set the match length limit in bytes. After a match this long is found,
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the search is finished. Valid values range from 5 to 273. Larger values
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usually give better compression ratios but longer compression times.
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@item -n @var{threads}
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@itemx --threads=@var{threads}
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@item -n @var{n}
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@itemx --threads=@var{n}
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Set the number of worker threads. Valid values range from 1 to "as many
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as your system can support". If this option is not used, plzip tries to
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detect the number of processors in the system and use it as default
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@ -180,22 +186,31 @@ and a file named @samp{@var{file}.lz} when compressing.
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@itemx --quiet
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Quiet operation. Suppress all messages.
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@item -s @var{size}
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@itemx --dictionary-size=@var{size}
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@item -s @var{bytes}
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@itemx --dictionary-size=@var{bytes}
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Set the dictionary size limit in bytes. Valid values range from 4KiB to
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512MiB. Note that dictionary sizes are quantized. If the specified size
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does not match one of the valid sizes, it will be rounded upwards.
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512MiB. Plzip will use the smallest possible dictionary size for each
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member without exceeding this limit. Note that dictionary sizes are
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quantized. If the specified size does not match one of the valid sizes,
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it will be rounded upwards by adding up to (@var{bytes} / 16) to it.
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For maximum compression you should use a dictionary size limit as large
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as possible, but keep in mind that the decompression memory requirement
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is affected at compression time by the choice of dictionary size limit.
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@item -t
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@itemx --test
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Check integrity of the specified file(s), but don't decompress them.
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This really performs a trial decompression and throws away the result.
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Use @samp{-tvv} or @samp{-tvvv} to see information about the file.
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Use it together with @samp{-v} to see information about the file.
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@item -v
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@itemx --verbose
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Verbose mode. Show the compression ratio for each file processed.
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Further -v's increase the verbosity level.
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Verbose mode.@*
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When compressing, show the compression ratio for each file processed.@*
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When decompressing or testing, further -v's (up to 4) increase the
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verbosity level, showing status, compression ratio, decompressed size,
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and compressed size.
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@item -1 .. -9
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Set the compression parameters (dictionary size and match length limit)
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@ -297,12 +312,12 @@ All multibyte values are stored in little endian order.
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@table @samp
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@item ID string
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A four byte string, identifying the member type, with the value "LZIP".
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A four byte string, identifying the lzip format, with the value "LZIP".
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@item VN (version number, 1 byte)
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Just in case something needs to be modified in the future. Valid values
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are 0 and 1. Version 0 files have only one member and lack @samp{Member
|
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size}.
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are 0 and 1. Version 0 files are deprecated. They can contain only one
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member and lack the @samp{Member size} field.
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@item DS (coded dictionary size, 1 byte)
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Bits 4-0 contain the base 2 logarithm of the base dictionary size.@*
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@ -323,7 +338,7 @@ Size of the uncompressed original data.
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@item Member size (8 bytes)
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Total size of the member, including header and trailer. This facilitates
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safe recovery of undamaged members from multimember files.
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safe recovery of undamaged members from multi-member files.
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@end table
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