Re: [boost] [GitHelp] (Mis-)Understanding merge

Subject: Re: [boost] [GitHelp] (Mis-)Understanding merge
From: Edward Diener (eldiener_at_[hidden])
Date: 2014-02-26 03:18:27

On 2/26/2014 2:19 AM, Jonathan Wakely wrote:
> On 26 February 2014 06:50, Edward Diener wrote:
>> I was following Modular Boost document "Establishing a merge point after SVN
>> Conversion" (https://svn.boost.org/trac/boost/wiki/PostCvtMergePoint) and
>> everything appeared to go well. I did my 'merge', 'commit', and 'push'
>> specified at the end of the document and things seemed pretty good so I was
>> confident I had established a correct merge point.
>>
>> Knowing that the latest 'develop' had been pushed and tested I determined to
>> update 'master' with the latest 'develop' prior to pushing it. So I did a
>> merge from 'develop' to 'master' and after carefully fixing a few minor
>> conflicts in favor of the 'develop' versions the merge was successful.
>>
>> Yet when I looked at the files involved I noticed that a file which was in
>> 'develop' was not in 'master'. How can this be ? If I merge from 'develop'
>> to 'master' are not any files in 'develop' which are not in 'master' added
>> automatically to 'master' ? If this is not the case it seems that a 'merge'
>> is not doing what I expect it to do. Am I really expected to have to
>> manually add files to 'master' which are in 'develop' and not in 'master'
>> prior to the merge, or I have I missed some 'merge' functionality that would
>> have done this for me automatically ?
>
> Could the file have been previously added and then removed from master?
>
> What were the exact commands you ran?  What is the file in question?
> (It should be possible for everyone else to reproduce the exact same
> situation and examine what's going on, which is easier than debugging
> prose.)

It is the preprocessor library. I established the merge point and pushed 
it. Then I tried to merge 'develop' into 'master'. But one of the files 
in 'develop', variadic_seq_to_seq.hpp, was missing from 'master' after 
the merge. I am still trying to understand why this is the case since 
the merge point should have that file.