On Mar 26, 2008, at 1:30 PM, mabshoff wrote: > On Mar 26, 9:27 pm, Robert Bradshaw <[EMAIL PROTECTED]> > wrote: >> On Mar 26, 2008, at 11:53 AM, William Stein wrote: >> >> >> >>> Hi Jason (or anybody), >> >>> Does anybody have a clue if it is possible to take a directory >>> (e.g., >>> devel/sage/) with an .hg repo directory >>> in it, and do the following: >> >>> (1) export everything in the .hg repo to something (perhaps a >>> ton of >>> stuff) in plain text format, >>> (2) delete .hg >>> (3) do something that recovers the .hg directory from the output >>> of (1). >> >>> Note that just doing hg_sage.export([0..10000]), where say 10000 is >>> the tip, doesn't work, because >>> that looses all information about branching, etc., hence fails >>> completely. >> >>> If mercurial can't do the above, that is a _very_ serious problem >>> for >>> the longterm viability of >>> Mercurial at least for Sage. So any ideas how to do the above? >> >>> The reason for doing (1) -- (3) is that it is possible to scan >>> an .hg >>> directory with antivirus tools. >>> Thus something silly like "base64-encode a tarball of .hg" won't >>> work. >> >> I think it should be possible to export a series of patches and a >> (python) script that would apply the patches in the right order, >> clone, and merge to get back the original repository. It might not be >> the most efficient however. I'll look into this more. >> >> Has anyone tried contacting the mercurial developers? > > Nope, that doesn't work on the Sage repo. Exporting all 9028 > changesets of 2.11.alpha1 took about 40 minutes, but on reimport to a > fresh repo failed around 1300 changesets. The problem is that export > of a merge on diffs against on parent. So if you resolve a merge > conflict in a merge changeset things go FUBAR. > > That was with 0.9.5, but I haven't tried 1.0 yet.
I was talking about something more sophisticated than export/import, which won't work the instant one has multiple branches. One needs to actually create multiple heads, apply patches, then resolve them. Hg export doesn't have enough information to do this. - Robert --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
