On 08/06/2010 11:15 AM, Lee Bieber wrote:
> I'm OK with most of this, I found it very confusing when you stepped in
> to help yesterday when I had to step away for a few minutes. I think its
> better to let one person play through. We should make sure that when we
> take on a merge we are committed to seeing it all the way through (my
> fault for having to step away).
> 
> But something is still not in sync. We shouldn't be seeing "n versions
> removed" messages from bzr when we push to build, staging or trunk. Also
> when I tried to pull from build/staging/trunk to my local branches this
> morning I got the dreaded "these branches have diverged" message. For
> safety sake I just started over fresh.

Agree. Whenver we get that, something has gone off a bit.

> Here is a short summary of what we have documented on the wiki page -
> http://drizzle.org/wiki/Merging_Code   Please let me know if there is
> something here that is out of step in this process:
> 
> Build
> 
>     * bzr pull to make sure you are in sync

I always start with "bzr pull --overwrite lp:drizzle" to make sure I'm
starting with a fresh copy of trunk.

>     * bzr merge <branches>
>     * bzr commit
>     * build and test
>     * bzr push lp:drizzle/build
> 
> Staging
> 
>     * bzr pull to make sure you are in sync
>     * bzr merge lp:drizzle/build
>     * bzr commit
>     * build and test
>     * bzr push lp:drizzle/staging
> 
> Trunk

I do not do this last section - if you followed the above, you should at
this point be able to pull directly from staging and push that directly
to trunk.

>     * bzr pull to make sure you are in sync
>     * bzr merge lp:drizzle/staging
>     * bzr commit
>     * build and test
>     * bzr push lp:drizzle
> 
> 
> On 8/5/10 10:54 PM, Brian Aker wrote:
>> Hi!
>>
>> I thought I would explain a few more bits about merges.
>>
>> Lets say you have patches  23,24,25 in your local tree. Just push them to 
>> build. As long as none of them fail you are ready for staging.
>>
>> For staging I typically do a rollup of the three. So they will all become 
>> "23" with subrevision numbers (if you are ever worried that the rollup to 
>> staging has something that has not full gone through build, read the 
>> comments for uniqueness). The valgrind report should always be the indicator 
>> of whether or not something should move to staging (ie you can look at it 
>> and see if the latest passed or not). 
>>
>> Once you have a rollup in "staging" you can push another set to build. Are 
>> there any issues with this?
>>
>> If staging fails you will have to over write anything you pushed after the 
>> rollup you pushed to staging. So you risk doing wasted work, but normally it 
>> is not a lot of wasted work.
>>
>> Is there anything that shouldn't be rolled up? 
>>
>> Yes. If you have a major patch, something that touches a lot of files (lets 
>> call it 10+ ), unless it is just a simple "rename" patch, you should 
>> probably run it through the system by itself. I would also recommend that 
>> for the most part if you have a stack of  Stewart's patches that are just 
>> for the embedded engine, I would just put them in one merge.
>>
>> Should you ever use the build tree to fix a patch? IE build is broken and 
>> you want to push a "fix" for it. I would try to keep this to a minimum. For 
>> instance it is ok if it is a build related item. Valgrind/etc should 
>> probably be fixed in local trees. I've made the mistake plenty of times of 
>> trying to fix in build, it typically does not work.
>>
>> What about helping someone out?
>>
>> I think it would be nice if others could promote it (we all go out to eat, 
>> have other things to do, etc...). My only concern is  that this could be 
>> confusing. I've felt comfortable sometimes doing this in the last week, and 
>> I know that I have sometimes not. I am also aware that it can make someone 
>> feel "well, they were going to do it...". So I would love to hear other 
>> people's thoughts on it. Personally I like to see stuff moving through as 
>> quickly as possible, but there is a balance in this as well. 
>>
>> Thoughts?
>>
>> Cheers,
>>      -Brian
>>
>>
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