bzip3 (https://github.com/kspalaiologos/bzip3) is a free and open-source
LGPLv3-licensed data
compression utility that excels at compressing text and source code.
Compression ratio tests for the automake distribution tarball:
% wc -c *tar*
1885428 automake-1.17.0.91.tar.bz2
1500817 automake-1.17.0.91.tar.bz3
2456935 automake-1.17.0.91.tar.gz
1641112 automake-1.17.0.91.tar.xz
---
bin/automake.in | 3 ++-
lib/Automake/Options.pm | 1 +
lib/am/distdir.am | 9 +++++++++
t/dist-formats.tap | 1 +
4 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/bin/automake.in b/bin/automake.in
index a17f45236..30d82bb96 100644
--- a/bin/automake.in
+++ b/bin/automake.in
@@ -3856,7 +3856,7 @@ sub handle_dist ()
{
my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
$archive_defined ||=
- grep { option "dist-$_" } qw(shar zip tarZ bzip2 lzip xz zstd);
+ grep { option "dist-$_" } qw(shar zip tarZ bzip2 bzip3 lzip xz zstd);
error (option 'no-dist-gzip',
"no-dist-gzip specified but no dist-* specified,\n"
. "at least one archive format must be enabled")
@@ -6898,6 +6898,7 @@ sub preprocess_file
'XZ' => !! option 'dist-xz',
'LZIP' => !! option 'dist-lzip',
'BZIP2' => !! option 'dist-bzip2',
+ 'BZIP3' => !! option 'dist-bzip3',
'COMPRESS' => !! option 'dist-tarZ',
'GZIP' => ! option 'no-dist-gzip',
'SHAR' => !! option 'dist-shar',
diff --git a/lib/Automake/Options.pm b/lib/Automake/Options.pm
index 2dc7899f8..d08af3ef1 100644
--- a/lib/Automake/Options.pm
+++ b/lib/Automake/Options.pm
@@ -275,6 +275,7 @@ sub _is_valid_easy_option ($)
color-tests
dejagnu
dist-bzip2
+ dist-bzip3
dist-lzip
dist-xz
dist-zip
diff --git a/lib/am/distdir.am b/lib/am/distdir.am
index c85f6a325..4a7534f98 100644
--- a/lib/am/distdir.am
+++ b/lib/am/distdir.am
@@ -343,6 +343,12 @@ dist-bzip2: distdir
tardir=$(distdir) && $(am__tar) | BZIP2=$${BZIP2--9} bzip2 -c
>$(distdir).tar.bz2
$(am__post_remove_distdir)
+?BZIP3?DIST_ARCHIVES += $(distdir).tar.bz3
+.PHONY: dist-bzip3
+dist-bzip3: distdir
+ tardir=$(distdir) && $(am__tar) | BZIP2=$${BZIP2--9} bzip3 -c
>$(distdir).tar.bz3
+ $(am__post_remove_distdir)
+
?LZIP?DIST_ARCHIVES += $(distdir).tar.lz
.PHONY: dist-lzip
dist-lzip: distdir
@@ -390,6 +396,7 @@ dist-zip: distdir
?XZ?DIST_TARGETS += dist-xz
?SHAR?DIST_TARGETS += dist-shar
?BZIP2?DIST_TARGETS += dist-bzip2
+?BZIP3?DIST_TARGETS += dist-bzip3
?GZIP?DIST_TARGETS += dist-gzip
?ZIP?DIST_TARGETS += dist-zip
?ZSTD?DIST_TARGETS += dist-zstd
@@ -443,6 +450,8 @@ distcheck: dist
eval GZIP= gzip -dc $(distdir).tar.gz | $(am__untar) ;;\
*.tar.bz2*) \
bzip2 -dc $(distdir).tar.bz2 | $(am__untar) ;;\
+ *.tar.bz3*) \
+ bzip3 -dc $(distdir).tar.bz3 | $(am__untar) ;;\
*.tar.lz*) \
lzip -dc $(distdir).tar.lz | $(am__untar) ;;\
*.tar.xz*) \
diff --git a/t/dist-formats.tap b/t/dist-formats.tap
index 34d88b67c..13250327c 100644
--- a/t/dist-formats.tap
+++ b/t/dist-formats.tap
@@ -59,6 +59,7 @@ setup_vars_for_compression_format ()
lzip) suffix=tar.lz compressor=lzip ;;
xz) suffix=tar.xz compressor=xz ;;
bzip2) suffix=tar.bz2 compressor=bzip2 ;;
+ bzip3) suffix=tar.bz3 compressor=bzip3 ;;
zip) suffix=zip compressor=zip ;;
zstd) suffix=tar.zst compressor=zstd ;;
*) fatal_ "invalid compression format '$1'";;
--
2.45.2
