[OE-core] should a "*git.bb" recipe lock that recipe to a fixed version?

[Christopher Larson]

On Sun, Oct 30, 2016 at 10:16 AM, Christopher Larson <clarson at kergoth.com>
wrote:

> On Sun, Oct 30, 2016 at 5:25 AM, Robert P. J. Day <rpjday at crashcourse.ca>
> wrote:
>
>>
>>   not sure if i should have noticed this before, but i was building a
>> number of python modules, and my collection of layers gave me two
>> possibilities for python-django:
>>
>>   * python-django_git.bb      (meta-openstack)
>>   * python-django_1.9.7.bb    (meta-python)
>>
>>   i simply assumed that any "git"-versioned recipe would typically
>> take precedence over a fixed version recipe, so i was surprised to see
>> that what was built was python-django-1.8.6. huh?
>>
>>   then i looked at the recipe from meta-openstack, and it contained
>> the lines:
>>
>>   PV = "1.8.6"
>>   SRCREV = "80b7e9d09f2d23209b591288f9b2cf3eb3d927c8"
>>
>>   SRC_URI = " \
>>       git://github.com/django/django.git;branch=stable/1.8.x \
>>       "
>>
>> am i right in being a bit confused by that? i checked out the github
>> repo, and it has branches "stable/1.8.x", and also "stable/1.9.x" and
>> "stable/1.10.x". so what is that supposed to mean?
>>
>>   am i right in assuming that a "git" recipe will (in the absence of
>> any PREFERRED_VERSION settings or other overriding settings) always be
>> considered before a fixed version recipe? and is that why i got this
>> (for me) unexpected result?
>>
>
> Bitbake selects default versions via DEFAULT_VERSION, PREFERRED_VERSION,
> and lacking both, a naïve version comparison. There’s nothing magic to
> select or not select an _git recipe.
>

s/DEFAULT_VERSION/DEFAULT_PREFERENCE/
-- 
Christopher Larson
clarson at kergoth dot com
Founder - BitBake, OpenEmbedded, OpenZaurus
Maintainer - Tslib
Senior Software Engineer, Mentor Graphics
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