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From Jeffrey Heifetz <jheif...@blackberry.com>
Subject Re: Cordova CLI merge, new branch, INFRA ticket
Date Wed, 29 May 2013 15:06:08 GMT
I'd go with tangled history over forced re-clone.

On 13-05-29 11:00 AM, "Braden Shepherdson" <braden@chromium.org> wrote:

>I'll keep this thread up to date with INFRA's responses.
>
>I asked INFRA about options and their implications. These are the four
>options I described, after I was informed that our original request would
>actually require everyone to re-clone the repo.
>
> 1. Check out master, delete all the files, copy in all the files from
>master2, check them all in. This keep the branching the same, and no one
>would need to re-clone. But it also makes the history nearly useless
>before
>that point. I dislike this option, but it's there.
>
>2. Rename master to old_master or similar, and rename master2 to master.
>Since everyone is re-cloning anyway, this is possible. Keeps the name
>consistent. This might be nasty if someone tries to merge between an old
>master and the new master. Unless git can notice that things are wrong and
>they should re-clone.
>
>3. My original request to move HEAD. Exposes the master2 name and requires
>everyone to use it. Still requires a re-clone.
>
>4. Abandon the repository and recreate it under a new name, pushing only
>master2 as the new master. Requires a re-clone and changing the name.
>Probably not, but it's an option.
>
>What do people think? I'm most partial to 2, since it preserves the master
>name and it's hard to avoid recloning.
>
>Braden
>
>
>On Tue, May 28, 2013 at 8:07 PM, Jesse <purplecabbage@gmail.com> wrote:
>
>> What is the resolution on this?
>>
>> My opinion: History is in the past, move on.
>> I think it's okay if it is history is messy, or even if has a few
>>duplicate
>> commits.  Tangles and all.
>>
>>
>> @purplecabbage
>> risingj.com
>>
>>
>> On Fri, May 24, 2013 at 7:05 AM, Braden Shepherdson <braden@chromium.org
>> >wrote:
>>
>> > I think so, but only if we're prepared to keep the tangled history and
>> > duplicate about 30 commits. Several mistakes were made with the
>>branching
>> > and rebasing of things on master, and there's a lot of duplication and
>> > confusion in the history.
>> >
>> > When you get in this morning, I can show you the whiteboard diagram of
>> the
>> > long version above, and then you can look at the histories of master
>>and
>> > master2 on GitX. I think you'll agree it's worth moving forward with
>> > master2.
>> >
>> > Braden
>> >
>> >
>> > On Thu, May 23, 2013 at 11:16 PM, Andrew Grieve <agrieve@chromium.org
>> > >wrote:
>> >
>> > > Could we merge master2 into master with:
>> > >
>> > > git merge --strategy-option=theirs master2
>> > >
>> > >
>> > > On Thu, May 23, 2013 at 6:19 PM, Braden Shepherdson <
>> braden@chromium.org
>> > > >wrote:
>> > >
>> > > > tl;dr version: cordova-cli now has a master2 branch that should be
>> > > treated
>> > > > as master going forward. DO NOT use master or future anymore.
>> > > >
>> > > > Short version:
>> > > >
>> > > > - I tried to merge future and master.
>> > > > - I couldn't because the history is a train wreck. The morbidly
>> curious
>> > > > should see [2].
>> > > > - Ian and I dug through the history, and played CSI until we
>>figured
>> > out
>> > > > what had happened, and found a sensible way to reconstruct a sane
>> > master
>> > > > branch.
>> > > > - This branch merged fairly neatly with future.
>> > > > - It is now committed as the new branch master2.
>> > > > - The original master branch is deprecated.
>> > > > - I have filed an INFRA ticket[1] to get them to point HEAD at
>> master2,
>> > > and
>> > > > delete the old master branch.
>> > > > - Use master2 from now on. DO NOT touch the old master or future
>> > branches
>> > > > anymore.
>> > > >
>> > > > I'll keep the list updated on the state of the INFRA ticket.
>> > > >
>> > > > Braden
>> > > >
>> > > > [1] https://issues.apache.org/jira/browse/INFRA-6302
>> > > >
>> > > > [2] Long version:
>> > > >
>> > > > A long time ago, I forked cli's master to create future. I
>>committed
>> a
>> > > > half-dozen changes or so. Sometime later, a 2.7.x branch was
>>forked
>> > /from
>> > > > future/. Several changes were made here. Later it was merged back
>>in,
>> > /to
>> > > > master/. The same changes were later rebased onto master and
>> committed
>> > > > again, duplicating them. Then this branch was merged with master
>> again,
>> > > > creating a /third/ copy of the changes originally from this 2.7.x
>> > branch.
>> > > >
>> > > > Meanwhile, some of the changes from future were reverted by hand
>>(as
>> > > > opposed to with git revert) in master.
>> > > >
>> > > > Finally some new changes were made to future and master. It looks,
>> > > > according to git, like there are only these changes on the future
>> > branch,
>> > > > since the earlier ones were merged by accident some time ago.
>> > > >
>> > > > When I came along and tried to merge master and future in either
>> > > direction,
>> > > > or rebase in either direction, those older future changes stayed
>> > deleted,
>> > > > because according to git they were made on the same branch.
>> > > >
>> > > > Moral of the story: Don't take a branch off master (like future),
>> fork
>> > > it,
>> > > > commit to it, and then merge it back to master. That's what
>>started
>> > most
>> > > of
>> > > > the insanity, because now future is partially merged into master
>>even
>> > > > though it's not being treated that way.
>> > > >
>> > > > I need a drink.
>> > > >
>> > >
>> >
>>


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