[yocto] AUTOREV problems

[Jerrod Peach]

Correction: I'm wrong on the standard for PV.  The standard (after looking
through some BB files) appears to be this:

PV = "<version number>+<vcs>${SRCPV}"

On Mon, Oct 22, 2012 at 8:46 AM, Jerrod Peach <peachj at lexmark.com> wrote:

> Seth,
>
> Like Tomas said, it's hard to say for sure without seeing the recipe in
> question, but I know one way this could happen: AUTOREV, by itself, does
> not permute your hash.  It ends up just resolving to the string "AUTOINC"
> every time.  You *also *need the SRCPV variable somewhere in your recipe,
> as it will contain the real revision the was retrieved from version
> control.  I believe the normal way to use SRCPV is as follows:
>
> PV = "<vcs>-<version>-${SRCPV}"
>
> For example:
>
> PV = "svn-1.0.0-${SRCPV}"
>
> If you aren't using SRCPV, your hash won't permute, and you won't rebuild.
>
> The reason for this behavior isn't obvious off-hand, but I suspect it's so
> you can set AUTOREV for a specific package in local.conf and not force half
> the world to get reparsed every time a revision updates.
>
> Kind regards,
>
> Jerrod
>
> On Mon, Oct 22, 2012 at 7:56 AM, Seth Bollinger <seth.boll at gmail.com>wrote:
>
>> Hello All,
>>
>> I've been having some serious problems trying to get my image to rebuild
>> recipes when their upstream repositories have changed.  I have SRCREV =
>> ${AUTOREV} in my recipe and in bitbake -e I see these 2 lines:
>> # SRCREV=${AUTOREV}
>> SRCREV="AUTOINC"
>>
>> I've found BB_SRCREV_POLICY and I've set that explicitly to clear, even
>> though that seems to be the default.  Auto didn't seem to work, even
>> though
>> it looks like it should from the code.
>>
>> When I try rebuilding my recipe, it seems to find that everything is
>> cached
>> and doesn't even attempt the fetch, even though I know the repository has
>> changed (that's the reason I want to rebuild :)).  I've tried whacking
>> tmp/cache/*, but that didn't help.  I tried whacking the stamp for
>> do_fetch.  That didn't help unless I explicitly built using the "fetch"
>> command, then it at least appeared to fetch.  However, when I tried to
>> build the image after that, it didn't try to rebuild the recipe that had
>> just fetched.
>>
>> The only way I could get it to rebuild was to cleansstate on the recipe
>> and
>> then rebuild the image.  I assume this isn't the way it should be working.
>>
>> 1.  What is the expected operation of bitbake builds for recipes using
>> autorev?
>> 2.  How can I get my autorev recipes to rebuild when their repositories
>> change?
>> 3.  If this is working for everyone else, how can I find what I have
>> screwed up?  :)
>>
>> Thanks,
>>
>> Seth
>>
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>>
>>
>
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