Thomas Bächler a écrit : > Pierre Schmitz schrieb: >> Hi devs, >> >> we had a long discussion about xz/lzma support some time ago. So I >> finally added xz-utils to testing and rebuild libarchive to make use >> of it. >> If everything is OK we can move both to core and remove lzma-utils >> from extra. >> >> I don't know if anything else has to be recompiled to add support for >> xz/lzma. >> >> PS: you can build xz archive with bsdtar (part of libarchive). >> PPS: the git version of pacman/makepkg (future 3.3) should support >> the xz format (not tested) >> > > bsdtar can create .tar.xz archives with compression level 9 (at least > it claims it does, I added --option xz:compression=9 or so) - however, > if I unxz them and xz -9 them again (or do that to any tar archives), > bsdtar cannot extract them. This is the same for -7 and -8. pacman is > therefore also unable to read those archives. No idea why, but I > thought I'd mention it. >
I've done similar tests a little while ago, and got similar results. I have peeked at the code of bsdtar and if I remember correctly, support for xz appeared to be quite patchy, more a work-in-progress kind of state. Same thing with gnu tar (it has option --lzma to uncompress, but it cannot yet compress). I expected a command for xz/lzma (akin to j for bz2), but neither tar nor bsdtar has such a thing yet. Hopefully this this will be implemented soon, as the xz format is about to become relatively widespread. F
