Dear community,
brotli is a compression algorithm specifically created to compress
hypertext documents and texts in the most common human languages.
Please find below a patch which integrates brotli into GNU tar to
create br compressed tar files. The files have the extension .tbr and
the new command line options -y and --brotli are added to tar.
Do you have any questions? I am looking forward to receiving your
feedback.
Best wishes
Marius
===
diff -bur tar-1.29/acinclude.m4 tar-1.30/acinclude.m4
--- tar-1.29/acinclude.m4 2016-04-05 16:20:36.000000000 +0200
+++ tar-1.30/acinclude.m4 2017-10-03 23:04:54.596473997 +0200
@@ -1,6 +1,6 @@
dnl Special Autoconf macros for GNU tar -*- autoconf -*-
-dnl Copyright 2009, 2013-2014, 2016 Free Software Foundation, Inc.
+dnl Copyright 2009, 2013-2014, 2016-2017 Free Software Foundation, Inc.
dnl
dnl This file is part of GNU tar.
dnl
diff -bur tar-1.29/ChangeLog tar-1.30/ChangeLog
--- tar-1.29/ChangeLog 2016-05-16 11:22:21.000000000 +0200
+++ tar-1.30/ChangeLog 2017-10-03 22:06:12.923701501 +0200
@@ -1,3 +1,9 @@
+2017-10-03 Marius Spix <marius.s...@web.de>
+
+ Version 1.30
+
+ Add support for the brotli compression algorithm (RFC 7932).
+
2016-05-16 Sergey Poznyakoff <g...@gnu.org.ua>
Version 1.29
diff -bur tar-1.29/config.h.in tar-1.30/config.h.in
--- tar-1.29/config.h.in 2016-05-16 10:52:47.000000000 +0200
+++ tar-1.30/config.h.in 2017-10-03 20:57:31.222967767 +0200
@@ -18,6 +18,9 @@
/* Define to the number of bits in type 'wint_t'. */
#undef BITSIZEOF_WINT_T
+/* Define to the program name of brotli compressor program */
+#undef BROTLI_PROGRAM
+
/* Define to the program name of bzip2 compressor program */
#undef BZIP2_PROGRAM
diff -bur tar-1.29/configure tar-1.30/configure
--- tar-1.29/configure 2016-05-16 10:52:00.000000000 +0200
+++ tar-1.30/configure 2017-10-03 23:09:27.811456347 +0200
@@ -1,6 +1,6 @@
#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for GNU tar 1.29.
+# Generated by GNU Autoconf 2.69 for GNU tar 1.30.
#
# Report bugs to <bug-tar@gnu.org>.
#
@@ -580,8 +580,8 @@
# Identity of this package.
PACKAGE_NAME='GNU tar'
PACKAGE_TARNAME='tar'
-PACKAGE_VERSION='1.29'
-PACKAGE_STRING='GNU tar 1.29'
+PACKAGE_VERSION='1.30'
+PACKAGE_STRING='GNU tar 1.30'
PACKAGE_BUGREPORT='bug-tar@gnu.org'
PACKAGE_URL='http://www.gnu.org/software/tar/'
@@ -1577,6 +1577,7 @@
with_lzma
with_lzop
with_xz
+with_brotli
with_gnu_ld
enable_rpath
with_libiconv_prefix
@@ -2141,7 +2142,7 @@
# Omit some internal or obsolete options to make the list less
imposing. # This message is too long to be a string in the A/UX 3.1 sh.
cat <<_ACEOF
-\`configure' configures GNU tar 1.29 to adapt to many kinds of systems.
+\`configure' configures GNU tar 1.30 to adapt to many kinds of systems.
Usage: $0 [OPTION]... [VAR=VALUE]...
@@ -2211,7 +2212,7 @@
if test -n "$ac_init_help"; then
case $ac_init_help in
- short | recursive ) echo "Configuration of GNU tar 1.29:";;
+ short | recursive ) echo "Configuration of GNU tar 1.30:";;
esac
cat <<\_ACEOF
@@ -2256,6 +2257,7 @@
--with-lzma=PROG use PROG as lzma compressor program
--with-lzop=PROG use PROG as lzop compressor program
--with-xz=PROG use PROG as xz compressor program
+ --with-brotli=PROG use PROG as brotli compressor program
--with-gnu-ld assume the C compiler uses GNU ld
[default=no] --with-libiconv-prefix[=DIR] search for libiconv in
DIR/include and DIR/lib --without-libiconv-prefix don't search for
libiconv in includedir and libdir @@ -2361,7 +2363,7 @@
test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
cat <<\_ACEOF
-GNU tar configure 1.29
+GNU tar configure 1.30
generated by GNU Autoconf 2.69
Copyright (C) 2012 Free Software Foundation, Inc.
@@ -3070,7 +3072,7 @@
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
-It was created by GNU tar $as_me 1.29, which was
+It was created by GNU tar $as_me 1.30, which was
generated by GNU Autoconf 2.69. Invocation command line was
$ $0 $@
@@ -4053,7 +4055,7 @@
# Define the identity of the package.
PACKAGE='tar'
- VERSION='1.29'
+ VERSION='1.30'
cat >>confdefs.h <<_ACEOF
@@ -35377,6 +35379,22 @@
_ACEOF
+
+
+
+# Check whether --with-brotli was given.
+if test "${with_brotli+set}" = set; then :
+ withval=$with_brotli; tar_cv_compressor_brotli=${withval}
+else
+ tar_cv_compressor_brotli=bro
+fi
+
+
+cat >>confdefs.h <<_ACEOF
+#define BROTLI_PROGRAM "$tar_cv_compressor_brotli"
+_ACEOF
+
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for default archive
format" >&5 $as_echo_n "checking for default archive format... " >&6; }
@@ -38623,7 +38641,7 @@
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.
ac_log="
-This file was extended by GNU tar $as_me 1.29, which was
+This file was extended by GNU tar $as_me 1.30, which was
generated by GNU Autoconf 2.69. Invocation command line was
CONFIG_FILES = $CONFIG_FILES
@@ -38691,7 +38709,7 @@
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //;
s/[\\""\`\$]/\\\\&/g'`" ac_cs_version="\\
-GNU tar config.status 1.29
+GNU tar config.status 1.30
configured by $0, generated by GNU Autoconf 2.69,
with options \\"\$ac_cs_config\\"
diff -bur tar-1.29/configure.ac tar-1.30/configure.ac
--- tar-1.29/configure.ac 2016-05-16 10:51:12.000000000 +0200
+++ tar-1.30/configure.ac 2017-10-03 23:09:17.444457017 +0200
@@ -1,6 +1,6 @@
# Configure template for GNU tar. -*- autoconf -*-
-# Copyright 1991, 1994-2010, 2013-2016 Free Software Foundation, Inc.
+# Copyright 1991, 1994-2010, 2013-2017 Free Software Foundation, Inc.
# This file is part of GNU tar.
@@ -17,7 +17,7 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
-AC_INIT([GNU tar], [1.29], [bug-tar@gnu.org])
+AC_INIT([GNU tar], [1.30], [bug-tar@gnu.org])
AC_CONFIG_SRCDIR([src/tar.c])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_HEADERS([config.h])
@@ -250,6 +250,7 @@
TAR_COMPR_PROGRAM(lzma)
TAR_COMPR_PROGRAM(lzop)
TAR_COMPR_PROGRAM(xz)
+TAR_COMPR_PROGRAM(brotli,bro)
AC_MSG_CHECKING(for default archive format)
diff -bur tar-1.29/doc/gendocs_template tar-1.30/doc/gendocs_template
--- tar-1.29/doc/gendocs_template 2016-01-20 10:26:32.000000000
+0100 +++ tar-1.30/doc/gendocs_template 2017-10-03
21:48:25.747770441 +0200 @@ -106,7 +106,7 @@
</p>
<p>
-Copyright 2004, 2013-2014, 2016 Free Software Foundation, Inc.,
+Copyright 2004, 2013-2014, 2017 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02111, USA
<br />
Verbatim copying and distribution of this entire article is
Only in tar-1.30/doc: Makefile
diff -bur tar-1.29/doc/Makefile.in tar-1.30/doc/Makefile.in
--- tar-1.29/doc/Makefile.in 2016-05-16 10:51:58.000000000 +0200
+++ tar-1.30/doc/Makefile.in 2017-10-03 23:03:18.745480189 +0200
@@ -1,4 +1,4 @@
-# Makefile.in generated by automake 1.14 from Makefile.am.
+# Makefile.in generated by automake 1.14.1 from Makefile.am.
# @configure_input@
# Copyright (C) 1994-2013 Free Software Foundation, Inc.
diff -bur tar-1.29/doc/tar.1 tar-1.30/doc/tar.1
--- tar-1.29/doc/tar.1 2016-03-23 15:34:31.000000000 +0100
+++ tar-1.30/doc/tar.1 2017-10-03 21:55:16.422743911 +0200
@@ -1,5 +1,5 @@
.\" This file is part of GNU tar. -*- nroff -*-
-.\" Copyright 2013-2014, 2016 Free Software Foundation, Inc.
+.\" Copyright 2013-2014, 2016-2017 Free Software Foundation, Inc.
.\"
.\" GNU tar is free software; you can redistribute it and/or modify
.\" it under the terms of the GNU General Public License as published
by @@ -13,7 +13,7 @@
.\"
.\" You should have received a copy of the GNU General Public License
.\" along with this program. If not, see
<http://www.gnu.org/licenses/>. -.TH TAR 1 "March 23, 2016" "TAR" "GNU
TAR Manual" +.TH TAR 1 "October 3, 2017" "TAR" "GNU TAR Manual"
.SH NAME
tar \- an archiving utility
.SH SYNOPSIS
@@ -815,6 +815,10 @@
Filter the archive through
.BR lzop (1).
.TP
+\fB\-y\fR, \fB\-\-brotli\fR
+Filter the archive through
+.BR brotli (1).
+.TP
\fB\-\-no\-auto\-compress\fR
Do not use archive suffix to determine the compression program.
.TP
@@ -1285,7 +1289,8 @@
.BR rmt (8),
.BR symlink (7),
.BR tar (5),
-.BR xz (1).
+.BR xz (1),
+.BR brotli (1).
.PP
Complete \fBtar\fR manual: run
.B info tar
diff -bur tar-1.29/doc/tar.texi tar-1.30/doc/tar.texi
--- tar-1.29/doc/tar.texi 2016-04-14 10:50:55.000000000 +0200
+++ tar-1.30/doc/tar.texi 2017-10-03 21:42:33.052793226 +0200
@@ -36,7 +36,7 @@
@value{VERSION}, @value{UPDATED}), which creates and extracts files
from archives.
-Copyright @copyright{} 1992, 1994--1997, 1999--2001, 2003--2016 Free
+Copyright @copyright{} 1992, 1994--1997, 1999--2001, 2003--2017 Free
Software Foundation, Inc.
@quotation
@@ -2497,6 +2497,13 @@
Sets the blocking factor @command{tar} uses to @var{blocking} x 512
bytes per record. @xref{Blocking Factor}.
+@opsummary{brotli}
+@item --brotli
+@itemx -y
+
+This option tells @command{tar} to read or write archives through
+@code{brotli}. @xref{gzip}.
+
@opsummary{bzip2}
@item --bzip2
@itemx -j
@@ -3951,7 +3958,7 @@
@smallexample
tar (GNU tar) @value{VERSION}
-Copyright (C) 2013-2016 Free Software Foundation, Inc.
+Copyright (C) 2013-2017 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>. This is free software: you are free
to change and redistribute it. There is NO WARRANTY, to the extent
permitted by law. @@ -9555,11 +9562,12 @@
@cindex lzma
@cindex lzop
@cindex compress
+@cindex brotli
@GNUTAR{} is able to create and read compressed archives. It supports
a wide variety of compression programs, namely: @command{gzip},
@command{bzip2}, @command{lzip}, @command{lzma}, @command{lzop},
-@command{xz} and traditional @command{compress}. The latter is
-supported mostly for backward compatibility, and we recommend
+@command{xz}, @command{brotli} and traditional @command{compress}. The
latter +is supported mostly for backward compatibility, and we recommend
against using it, because it is by far less effective than the other
compression programs@footnote{It also had patent problems in the
past.}.
@@ -9571,7 +9579,8 @@
@option{--lzip} to create an @asis{lzip} compressed archive,
@option{-J} (@option{--xz}) to create an @asis{XZ} archive,
@option{--lzma} to create an @asis{LZMA} compressed
-archive, @option{--lzop} to create an @asis{LSOP} archive, and
+archive, @option{--lzop} to create an @asis{LSOP} archive,
+@option{--brotli} to create an @asis{brotli} archive, and
@option{-Z} (@option{--compress}) to use @command{compress} program.
For example:
@@ -9693,6 +9702,11 @@
@item --lzop
Filter the archive through @command{lzop}.
+@opindex brotli
+@item -y
+@itemx --brotli
+Filter the archive through @command{lzop}.
+
@opindex compress
@opindex uncompress
@item -Z
@@ -9765,6 +9779,8 @@
@item @samp{.tlz} @tab @command{lzma}
@item @samp{.lzo} @tab @command{lzop}
@item @samp{.xz} @tab @command{xz}
+@item @samp{.br} @tab @command{brotli}
+@item @samp{.tbr} @tab @command{brotli}
@end multitable
@anchor{use-compress-program}
diff -bur tar-1.29/Makefile.in tar-1.30/Makefile.in
--- tar-1.29/Makefile.in 2016-05-16 10:51:57.000000000 +0200
+++ tar-1.30/Makefile.in 2017-10-03 23:03:18.677480193 +0200
@@ -1,4 +1,4 @@
-# Makefile.in generated by automake 1.14 from Makefile.am.
+# Makefile.in generated by automake 1.14.1 from Makefile.am.
# @configure_input@
# Copyright (C) 1994-2013 Free Software Foundation, Inc.
@@ -1573,9 +1573,10 @@
&& dc_destdir="$${TMPDIR-/tmp}/am-dc-$$$$/" \
&& am__cwd=`pwd` \
&& $(am__cd) $(distdir)/_build \
- && ../configure --srcdir=.. --prefix="$$dc_install_base" \
+ && ../configure \
$(AM_DISTCHECK_CONFIGURE_FLAGS) \
$(DISTCHECK_CONFIGURE_FLAGS) \
+ --srcdir=.. --prefix="$$dc_install_base" \
&& $(MAKE) $(AM_MAKEFLAGS) \
&& $(MAKE) $(AM_MAKEFLAGS) dvi \
&& $(MAKE) $(AM_MAKEFLAGS) check \
diff -bur tar-1.29/NEWS tar-1.30/NEWS
--- tar-1.29/NEWS 2016-05-16 10:51:12.000000000 +0200
+++ tar-1.30/NEWS 2017-10-03 20:57:31.220967767 +0200
@@ -2,6 +2,10 @@
Please send GNU tar bug reports to <bug-tar@gnu.org>
+version 1.30 - Marius Spix, 2017-010-03
+
+* New option -y or --brotli for brotli compression.
+
version 1.29 - Sergey Poznyakoff, 2016-05-16
* New options: --verbatim-files-from, --no-verbatim-files-from
diff -bur tar-1.29/src/buffer.c tar-1.30/src/buffer.c
--- tar-1.29/src/buffer.c 2016-03-14 21:58:16.000000000 +0100
+++ tar-1.30/src/buffer.c 2017-10-03 22:47:43.172540628 +0200
@@ -1,6 +1,6 @@
/* Buffer management for tar.
- Copyright 1988, 1992-1994, 1996-1997, 1999-2010, 2013-2014, 2016
Free
+ Copyright 1988, 1992-1994, 1996-1997, 1999-2010, 2013-2014,
2016-2017 Free Software Foundation, Inc.
This file is part of GNU tar.
@@ -270,7 +270,8 @@
ct_lzip,
ct_lzma,
ct_lzop,
- ct_xz
+ ct_xz,
+ ct_brotli
};
static enum compress_type archive_compression_type = ct_none;
@@ -299,6 +300,9 @@
{ ct_lzma, 6, "\xFFLZMA" },
{ ct_lzop, 4, "\211LZO" },
{ ct_xz, 6, "\xFD" "7zXZ" },
+ { ct_brotli, 4, "\x91\x19\x62\x66" }, /* suggested by Joe Tsai */
+ { ct_brotli, 4, "\xCE\xB2\xCF\x81" }, /* suggested by Mark Adler */
+ { ct_brotli, 0, 0 } /* unframed stream */
};
#define NMAGIC (sizeof(magic)/sizeof(magic[0]))
@@ -314,6 +318,7 @@
{ ct_lzma, XZ_PROGRAM, "-J" },
{ ct_lzop, LZOP_PROGRAM, "--lzop" },
{ ct_xz, XZ_PROGRAM, "-J" },
+ { ct_brotli, BROTLI_PROGRAM, "-y" },
{ ct_none }
};
diff -bur tar-1.29/src/Makefile.in tar-1.30/src/Makefile.in
--- tar-1.29/src/Makefile.in 2016-05-16 10:51:59.000000000 +0200
+++ tar-1.30/src/Makefile.in 2017-10-03 23:03:19.036480170 +0200
@@ -1,4 +1,4 @@
-# Makefile.in generated by automake 1.14 from Makefile.am.
+# Makefile.in generated by automake 1.14.1 from Makefile.am.
# @configure_input@
# Copyright (C) 1994-2013 Free Software Foundation, Inc.
diff -bur tar-1.29/src/suffix.c tar-1.30/src/suffix.c
--- tar-1.29/src/suffix.c 2016-01-20 10:26:32.000000000 +0100
+++ tar-1.30/src/suffix.c 2017-10-03 21:49:02.204768086 +0200
@@ -1,5 +1,5 @@
/* This file is part of GNU tar.
- Copyright 2007, 2009, 2013-2014, 2016 Free Software Foundation, Inc.
+ Copyright 2007, 2009, 2013-2014, 2016-2017 Free Software
Foundation, Inc.
Written by Sergey Poznyakoff.
@@ -45,6 +45,8 @@
{ S(lzo, LZOP) },
{ S(xz, XZ) },
{ S(txz, XZ) }, /* Slackware */
+ { S(br, BROTLI) },
+ { S(tbr, BROTLI) },
{ NULL }
#undef S
#undef __CAT2__
diff -bur tar-1.29/src/tar.c tar-1.30/src/tar.c
--- tar-1.29/src/tar.c 2016-03-24 06:42:14.000000000 +0100
+++ tar-1.30/src/tar.c 2017-10-03 21:48:31.749770053 +0200
@@ -1,6 +1,6 @@
/* A tar (tape archiver) program.
- Copyright 1988, 1992-1997, 1999-2001, 2003-2007, 2012-2016 Free
+ Copyright 1988, 1992-1997, 1999-2001, 2003-2007, 2012-2017 Free
Software Foundation, Inc.
Written by John Gilmore, starting 1985-08-25.
@@ -682,6 +682,7 @@
{"lzma", LZMA_OPTION, 0, 0, NULL, GRID+1 },
{"lzop", LZOP_OPTION, 0, 0, NULL, GRID+1 },
{"xz", 'J', 0, 0, NULL, GRID+1 },
+ {"brotli", 'y', 0, 0, NULL, GRID+1 },
#undef GRID
#define GRID 100
@@ -1124,11 +1125,16 @@
case LZOP_OPTION:
s = xasprintf (_("filter the archive through %s"), LZOP_PROGRAM);
+ break;
case 'J':
s = xasprintf (_("filter the archive through %s"), XZ_PROGRAM);
break;
+ case 'y':
+ s = xasprintf (_("filter the archive through %s"),
BROTLI_PROGRAM);
+ break;
+
case ARGP_KEY_HELP_EXTRA:
{
const char *tstr;
@@ -1645,6 +1651,10 @@
set_subcommand_option (EXTRACT_SUBCOMMAND);
break;
+ case 'y':
+ set_use_compress_program_option (BROTLI_PROGRAM, args->loc);
+ break;
+
case 'z':
set_use_compress_program_option (GZIP_PROGRAM, args->loc);
break;
diff -bur tar-1.29/THANKS tar-1.30/THANKS
--- tar-1.29/THANKS 2016-03-24 06:29:55.000000000 +0100
+++ tar-1.30/THANKS 2017-10-03 23:04:31.675475478 +0200
@@ -327,6 +327,7 @@
Marc Ewing m...@redhat.com
Marcin Matuszewski mar...@frodo.nask.org.pl
Marcus Daniels mar...@sysc.pdx.edu
+Marius Spix marius.s...@web.de
Mark Bynum by...@cennas.nhmfl.gov
Mark Clements m...@mbsmm.com
Mark Frost mfr...@ncd.com
