Re: [RFC PATCH 08/21] contrib/gitdm: Add Mentor Graphics to the domain map

[Philippe Mathieu-Daudé]

On 10/6/20 6:01 AM, Jan Kiszka wrote:
> On 05.10.20 22:52, Joseph Myers wrote:
>> On Mon, 5 Oct 2020, Alex Bennée wrote:
>>
>>> Joseph Myers <joseph@codesourcery.com> writes:
>>>
>>>> On Sun, 4 Oct 2020, Philippe Mathieu-Daudé wrote:
>>>>
>>>>> There is a number of contributors from this domain,
>>>>> add its own entry to the gitdm domain map.
>>>>
>>>> At some point the main branding will be Siemens; not sure how you want to 
>>>> handle that.
>>>
>>> We've already done something similar with WaveComp who have rolled up
>>> the various mips and imgtec contributions into
>>> contrib/gitdm/group-map-wavecomp.
>>>
>>> It's really up to you and which corporate entity would like internet
>>> bragging points. The only Siemens contributor I could find is Jan Kiszka
>>> but he has contributed a fair amount ;-)
>>
>> Given that the Mentor branding is going away (and the "Mentor Graphics" 
>> version largely has gone away, "Mentor, a Siemens Business" is what's 
>> currently used as a Mentor brand), probably it makes sense to use Siemens 
>> for both codesourcery.com and mentor.com addresses.
>>
> 
> I think the key question is what this map is used for: Is it supposed to
> document the historic status, who was who at the time of contribution?
> Or is its purpose to help identifying the copyright holder of a
> contribution today?

My understanding is it is useful to document the historic status
(who was who at the time of contribution). The tool support such
granularity [*]:

EmailMap file

    Map email addresses onto employers.  These files contain lines
    like:

            [user@]domain  employer  [< yyyy-mm-dd]

    If the "user@" portion is missing, all email from the given domain
    will be treated as being associated with the given employer.  If a
    date is provided, the entry is only valid up to that date;
    otherwise it is considered valid into the indefinite future.  This
    feature can be useful for properly tracking developers' work when
    they change employers but do not change email addresses.

[*] https://repo.or.cz/git-dm.git/blob/098408bc4d:/README#l122

Regards,

Phil.