Generated files in Git

[Sebastian Huber]

On 05/16/2012 03:54 PM, Joel Sherrill wrote:
> On 05/16/2012 08:49 AM, Ralf Corsepius wrote:
>> On 05/16/2012 03:41 PM, Joel Sherrill wrote:
>>> On 05/16/2012 08:33 AM, Ralf Corsepius wrote:
>>>> On 05/16/2012 12:35 PM, Sebastian Huber wrote:
>>>>> Hello,
>>>>>
>>>>> we have found some files that are generated during build, and thus
>>>>> should not be under configuration management (CM).
>>>>>
>>>>> If you put the RTEMS source tree under CM with for example Rational
>>>>> Synergy, then this leads to problems.
>>>>>
>>>>> So, when trying to build from a Rational Synergy work area, which by
>>>>> default is
>>>>> write protected, we get some errors. There are .c files, that are
>>>>> generated by
>>>>> running sed on a .in file, but that fails because the generated files
>>>>> were in
>>>>> the original Git repository, and thus migrated into Synergy. Actually
>>>>> only the
>>>>> Makefile.am and the .in should be under CM.
>>>>>
>>>>> As you know, there are two flavours of CM systems, CVS style
>>>>> (modify-commit)
>>>>> and RCS style (lock-modify-commit). Synergy is “RCS style”, while
>>>>> Git is
>>>>> CVS
>>>>> style. That is why we have bigger problems with this inconsistency.
>>>>>
>>>>> The “wrong” files are
>>>>>
>>>>> - 3 .c files in rtems/testsuites/libtests/complex/
>>>>>
>>>>> - 1 .c file in rtems/testsuites/libtests/math/
>>>>>
>>>>> - 1 .c file in rtems/testsuites/libtests/mathf/
>>>>>
>>>>> - 1 .c file in rtems/testsuites/libtests/mathl/
>>>>>
>>>>> Also, the Makefile does not clean the generated files on “make
>>>>> distclean”.
>>>>>
>>>>> How to fix this? Remove the generated files from Git and add a
>>>>> distclean
>>>>> hook?
>>>> Definitely no. Similar to Makefile.ins, bspopts.h.in, rpcgen-generted
>>>> files, files are generated sources and should be part of the VCS.
>>> Makefile.in's are not part of the RTEMS git repository. Are you
>>> saying that they should be Ralf?
>>>
>> Correct. They are generated sources and should be part of the VCS.
>>
>> Like any other generated sources, they are supposed to be only
>> updated/modified, when their sources change.
> Any particular reason you haven't proposed adding a set
> of files to git if this is the case?
>
> We just had a thread about the problems of switching
> branches and bootstrapping and this was not brought up.

They were not part of CVS, so why do we want to add them now?  The Autotools 
files are quite huge this only blows up the repository.

-- 
Sebastian Huber, embedded brains GmbH

Address : Obere Lagerstr. 30, D-82178 Puchheim, Germany
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E-Mail  : sebastian.huber at embedded-brains.de
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