Hi everybody, Recently I took ownership of the par2cmdline package. par2cmdline is a program for creating and using PAR2 files to detect damage in data files and repair them if necessary. The current version of par2cmdline in Fedora is 0.4. This is also the latest upstream version. There hasn't been any upstream activity ever since the year 2004 [1]. Some time ago, par2cmdline was forked by somebody [2] and concurrency/multithreading support was added to it using Intel's Threading Building Blocks. As this new feature enhances the performance of creating PAR2 files and performing PAR2 repairs on modern hardware (with multiple CPU cores) I think a lot of people would appreciate it if this would land in Fedora. According to repoquery the par2cmdline program is currently being used by the following packages: $ repoquery --whatrequires par2cmdline | sort dar-0:2.3.8-3.fc11.i586 hellanzb-0:0.13-8.fc11.noarch nntpgrab-core-0:0.5.1-1.fc12.i686 pypar2-0:1.4-4.fc11.noarch The package maintainers of these packages have been BCC'ed. A scratch build containing the TBB version of par2cmdline has been done at http://koji.fedoraproject.org/koji/taskinfo?taskID=1570576 Binary RPM's can also be fetched from there. Package maintainers: could you please test whether the TBB version of par2cmdline works fine with your packages? Applications which are dependent on the order in which par2cmdline spits out messages (like download programs which want to trace the PAR2 verification/repair process) are recommended to add the argument '-t0' to the par2 command. This disables concurrent verify, but still enables concurrent repair and generation which should be enough to prevent such applications from getting confused. The behaviour of the TBB version is the same as the original par2cmdline. The TBB version can also be used on hardware which doesn't have multiple CPU cores like Pentium 4's. On PPC environments Intel Threading Building Blocks isn't available so for those environments the old behaviour also is used. I plan to commit my changes to rawhide in a few days. If people need assistance in getting their applications operational with the TBB version of par2cmdline feel free to email me or ping me on Freenode IRC (my nickname is epienbro). Regards, Erik van Pienbroek [1]: http://sourceforge.net/projects/parchive/files/par2cmdline/ [2]: http://www.chuchusoft.com/par2_tbb/ -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
