.\" Automatically generated by Pod::Man 4.10 (Pod::Simple 3.35) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. \*(C+ will .\" give a nicer C++. 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Of course, you'll have to process the .\" output yourself in some meaningful fashion. .\" .\" Avoid warning from groff about undefined register 'F'. .de IX .. .nr rF 0 .if \n(.g .if rF .nr rF 1 .if (\n(rF:(\n(.g==0)) \{\ . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF .\" .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). .\" Fear. Run. Save yourself. No user-serviceable parts. . \" fudge factors for nroff and troff .if n \{\ . ds #H 0 . ds #V .8m . ds #F .3m . ds #[ \f1 . ds #] \fP .\} .if t \{\ . ds #H ((1u-(\\\\n(.fu%2u))*.13m) . ds #V .6m . ds #F 0 . ds #[ \& . ds #] \& .\} . \" simple accents for nroff and troff .if n \{\ . ds ' \& . ds ` \& . ds ^ \& . ds , \& . ds ~ ~ . ds / .\} .if t \{\ . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' .\} . \" troff and (daisy-wheel) nroff accents .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' .ds 8 \h'\*(#H'\(*b\h'-\*(#H' .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] .ds ae a\h'-(\w'a'u*4/10)'e .ds Ae A\h'-(\w'A'u*4/10)'E . \" corrections for vroff .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' . \" for low resolution devices (crt and lpr) .if \n(.H>23 .if \n(.V>19 \ \{\ . ds : e . ds 8 ss . ds o a . ds d- d\h'-1'\(ga . ds D- D\h'-1'\(hy . ds th \o'bp' . ds Th \o'LP' . ds ae ae . ds Ae AE .\} .rm #[ #] #H #V #F C .\" ======================================================================== .\" .IX Title "PRISTINE-BZ2 1" .TH PRISTINE-BZ2 1 "2019-01-23" "perl v5.28.1" "pristine-bz2" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" pristine\-bz2 \- regenerate pristine bz2 files .SH "SYNOPSIS" .IX Header "SYNOPSIS" \&\fBpristine\-bz2\fR [\s-1OPTIONS\s0] gendelta \fIfile.bz2\fR \fIdelta\fR .PP \&\fBpristine\-bz2\fR [\s-1OPTIONS\s0] genbz2 \fIdelta\fR \fIfile\fR .SH "DESCRIPTION" .IX Header "DESCRIPTION" This is a complement to the \fBpristine\-tar\fR\|(1) command. Normally you don't need to run it by hand, since pristine-tar calls it as necessary to handle .tar.bz2 files. .PP pristine\-bz2 gendelta takes the specified \fIbz2\fR file, and generates a small binary \fIdelta\fR file that can later be used by pristine\-bz2 genbz2 to recreate the original file. .PP pristine\-bz2 genbz2 takes the specified \fIdelta\fR file, and compresses the specified input \fIfile\fR (which must be identical to the contents of the original bz2 file). The resulting file will be identical to the original gz file used to create the delta. .PP The approach used to regenerate the original bz2 file is to figure out how it was produced \*(-- what compression level was used, whether it was built with \fBbzip2\fR\|(1) or with \fBpbzip2\fR\|(1). .PP Note that other tools exist, like bzip2smp or dbzip2, but they are said to be bit-identical with bzip2. Anyway, bzip2 looks like the most widespread implementation, so it's hard to find bzip2 files that make pristine\-bz2 fail. Please report! .PP The deprecated bzip1 compression method hasn't been implemented. .PP If the delta filename is \*(L"\-\*(R", pristine\-bz2 reads or writes it to stdio. .SH "OPTIONS" .IX Header "OPTIONS" .IP "\-v" 4 .IX Item "-v" Verbose mode, show each command that is run. .IP "\-d" 4 .IX Item "-d" Debug mode. .IP "\-k" 4 .IX Item "-k" Don't clean up the temporary directory on exit. .IP "\-t" 4 .IX Item "-t" Try harder to determine how to generate deltas of difficult bz2 files. .SH "ENVIRONMENT" .IX Header "ENVIRONMENT" .IP "\fB\s-1TMPDIR\s0\fR" 4 .IX Item "TMPDIR" Specifies a location to place temporary files, other than the default. .SH "AUTHOR" .IX Header "AUTHOR" Joey Hess , Faidon Liambotis , Cyril Brulebois .PP Licensed under the \s-1GPL,\s0 version 2.