Re: [gentoo-scm] Gentoo SCM conversion status report, 2010/01/27

[Jeremy Olexa]

On Thu, 28 Jan 2010 03:37:52 +0000, "Robin H. Johnson"
<robbat2@g.o>
wrote:
> So, it's been a couple of months since the last one, and this time I can
> report substantial progress that has all taken place within the last 3
> weeks.
>
> Executive summary:
> ------------------
> - We can do a conversion pass of CVS to Git in just under 3 hours!
> - pre-upload-hook is shaping up, as upstream commit-notes and sparse
>   checkouts.
> - Work in feature development / Git conversions of existing
>   infrastructure is needed now.
>
> cvs2svn work:
> -------------
> ferringb stepped up, and kicked the living crap out of the cvs2svn code.
> I don't have a complete diff of his changes on hand, but by using
> snakeoil, unladen swallow and fixing up some parts of the cvs2svn code,
> he's dropped our cvs2svn time to an amazing 110 minutes. (When we
> started this process, it was 19 hours, then 9 hours, now sub 2 hours).
>
> I don't think it's going to get much better than this :-).
> Time breakdown for conversion, approximate values:
> cvs2svn = 110 minutes.
> fast-import = 25 minutes
> initial repack = 25 minutes
>
> Validation of converted tree:
> -----------------------------
> Still needs work, hope to work on it in February month myself.
>
> pre-upload-hook, ford_prefect:
> -------------------------------
> The hook code has gone through two rounds of review between ford_prefect
> and
> myself, and should hopefully be posted to the upstream Git mailing list
> this
> week.
>
> commit signing:
> ---------------
> No news. rbu? Volunteers needed. New ypstream 1.7.x branch DOES have
> commit notes support now.
>
> Thin manifest:
> --------------
> No news.
>
> sparse trees:
> -------------
> Now available in upstream 1.7.0-rc0, which has been tagged, but no
> tarballs released yet.
>
> Testing git-cvsserver:
> ----------------------
> No news. Volunteers needed.
>
> commit hooks/portage to rsync conversion scripts:
> -------------------------------------------------
> No news. Volunteers needed.

First, thanks for the status report.

I would like to volunteer for this, mainly the "portage to rsync
conversion scripts". We will be in touch off-list to discuss details.
-Jeremy

>
> cvs2svn Statistics:
> ------------------
> Total CVS Files:            378069
> Total CVS Revisions:       2436256
> Total CVS Branches:         120165
> Total CVS Tags:              23298
> Total Unique Tags:               5
> Total Unique Branches:           2
> CVS Repos Size in KB:      1632386
> Total SVN Commits:          710891
> First Revision Date:    Fri Jul 28 00:35:42 2000
> Last Revision Date:     Sun Jan 17 01:25:36 2010
> ------------------
> Timings (seconds):
> ------------------
>  905   pass1    CollectRevsPass
>   94   pass2    CleanMetadataPass
>    0   pass3    CollateSymbolsPass
>  425   pass4    FilterSymbolsPass
>    7   pass5    SortRevisionSummaryPass
>    0   pass6    SortSymbolSummaryPass
>  594   pass7    InitializeChangesetsPass
>  677   pass8    BreakRevisionChangesetCyclesPass
>  631   pass9    RevisionTopologicalSortPass
>  194   pass10   BreakSymbolChangesetCyclesPass
>  607   pass11   BreakAllChangesetCyclesPass
>  452   pass12   TopologicalSortPass
>  758   pass13   CreateRevsPass
>   13   pass14   SortSymbolsPass
>   13   pass15   IndexSymbolsPass
> 1254   pass16   OutputPass
> 6624   total