[Bioc-devel] Reset SVN repo to earlier state

Hi,

Is there any way to reset the devel branch of a package SVN repo / git
mirror to an earlier state, or simply to delete the devel branch and start
again from a copy of release-3.4?

I made a mess in my SVN repo by trying to combine my previous git history
(prior to Bioconductor acceptance) together with new commits from SVN in a
single git branch. Unfortunately, at one point I dcommitted all the old git
commits on top of the existing commits in the SVN repo, which was not a
very good idea. Now the SVN repo appears to be stuck (possibly due to
changes in the version number in DESCRIPTION).

Ideally, I would like to just delete the whole devel branch and start again
from a fresh copy of release-3.4, but I'm not sure if this can be done
without manual intervention. Alternatively, if there is a way to reset to
this earlier git-svn-id, that could also work:
https://hedgehog.fhcrc.org/bioconductor/trunk/madman/Rpacks/regsplice at 122712.
All my work since then is backed up elsewhere, so I can recover everything
from there.

You're making changes to the 'devel' branch, so the relevant build report is

   http://bioconductor.org/checkResults/3.5/bioc-LATEST/regsplice/

and the relevant landing page is

   http://bioconductor.org/packages/3.5/bioc/html/regsplice.html

I mention this because you say the 'SVN repo appears stuck' but it 
actually seems like, modulo the nightly builds, the package is 
up-to-date with svn. Also the last svn revision was

r124171 | l.weber | 2016-11-15 19:21:04 -0500 (Tue, 15 Nov 2016) | 3 lines

so quite current. The Bioconductor-mirror choked on your multiple svn 
commits in short succession; I have updated the mirror so it is in sync 
again.

If you do want to 'start again' in svn, it is straight-forward to 
'reverse merge' from a current to a historical revision. I did

   cd regsplice
   svn log|less

and then searched until I found the version bump that started the devel 
branch, r122712. I then did the reverse merge

   svn merge -rHEAD:122712 .

and if that is where you want to start from, I'd bump the version to be 
1.1.z, where z is larger than any z you've used for your package so far 
(looks like the current head is 1.1.5, so that would be 1.1.6) and then

   svn ci

I don't really know how you would coordinate this in git and svn; I 
think an easier strategy would be to get your git repo into the 
condition you want, and then dcommit to svn. Personally, I find the git 
/ svn interface so challenging that I do not use git for packages whose 
cannonical repository is svn.

Martin

A link to the package is here:
http://bioconductor.org/packages/release/bioc/html/regsplice.html

Thanks and sorry for the inconvenience,
Lukas

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