On Mon, Dec 17, 2007 at 12:20:28AM -0500, Max Battcher wrote: > On Dec 16, 2007 4:45 PM, Alexander Staubo <[EMAIL PROTECTED]> wrote: > > I'm a bit confused about the new repository formats. There's the new > > hashed format, and also the "darcs-2 format"; but I don't see an > > explanation anywhere as to why Darcs 2 needs two new formats or why > > users should not simply go ahead use the "darcs-2" format. > > It's in the original announcement as well as the wiki page: > > http://wiki.darcs.net/DarcsWiki/DarcsTwo > > Here's my 3rd party, possible inaccurate, summary of the differences: > > * The hashed repository format is just a change to the way inventories > are stored and so you can still easily move patches between old > non-hashed repositories and new hashed repositories. I believe you > need someone with Darcs 2 to act as a mediator between the two > repository styles, but it's possible. It seems that you can convert > your personal working copies of repositories and get some (all?) of > the benefits of hashed repository even if "upstream" repositories > aren't using it, and you can still darcs push and darcs send to the > non-hashed repositories with no worries. > > * The Darcs 2 format makes backwards-incompatible changes to the patch > format (specifically the conflicts/mergers bits) and patches generated > in Darcs 2 format can't be handled by Darcs 1 or Darcs 1 repositories > at all.
Right. So, for instance, darcs itself cannot yet switch to --darcs-2 without forcing all darcs contributors to switch immediately to darcs 2. So I'm using the --hashed format as well as a mirror repository in the old format to allow multiple versions of darcs to interact. Also, the darcs-2 format is still marked as experimental, specifically because I may need to make changes. This is one of the reasons why this is a "prerelease" rather than a "release candidate". Ultimately the darcs-2 format will be in use, and --hashed is merely a transitional format. However, this is very useful, as the majority of the performance-affecting code is identical between the hashed format and the darcs-2 format. -- David Roundy Department of Physics Oregon State University _______________________________________________ darcs-devel mailing list darcs-devel@darcs.net http://lists.osuosl.org/mailman/listinfo/darcs-devel
