import-tars: Add support for tarballs compressed with lzma, xz

Also handle the extensions .tlz and .txz, aliases for .tar.lzma and
.tar.xz respectively.

Signed-off-by: Ingmar Vanhassel <ingmar@exherbo.org>
Liked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/contrib/fast-import/import-tars.perl b/contrib/fast-import/import-tars.perl
index 7001862bfdf8de1c7d446c7ca17d87d5f953ca91..95438e1ed42f7289131a1b08654a2b23098c8e26 100755 (executable)
--- a/contrib/fast-import/import-tars.perl
+++ b/contrib/fast-import/import-tars.perl
@@ -20,7 +20,7 @@
 
 my $metaext = '';
 
-die "usage: import-tars [--metainfo=extension] *.tar.{gz,bz2,Z}\n"
+die "usage: import-tars [--metainfo=extension] *.tar.{gz,bz2,lzma,xz,Z}\n"
        unless GetOptions('metainfo=s' => \$metaext) && @ARGV;
 
 my $branch_name = 'import-tars';
@@ -49,6 +49,9 @@
        } elsif ($tar_name =~ s/\.tar\.Z$//) {
                open(I, '-|', 'uncompress', '-c', $tar_file)
                        or die "Unable to uncompress -c $tar_file: $!\n";
+       } elsif ($tar_name =~ s/\.(tar\.(lzma|xz)|(tlz|txz))$//) {
+               open(I, '-|', 'xz', '-dc', $tar_file)
+                       or die "Unable to xz -dc $tar_file: $!\n";
        } elsif ($tar_name =~ s/\.tar$//) {
                open(I, $tar_file) or die "Unable to open $tar_file: $!\n";
        } else {