Re: SRCPV description


Jerrod Peach <peachj@...>
 

On Mon, Jan 14, 2013 at 9:52 AM, Rifenbark, Scott M <scott.m.rifenbark@...> wrote:
Hi,

I need a description of the SRCPV variable for the YP reference glossary.  I have been told that it is generated and not assigned and that it is used to define PV values that include the source revisions from an RCS.  By default it is set to the following in the conf/bitbake.conf file:

SRCPV = "${@bb.fetch2.get_srcrev(d)}"

Can anyone provide more information on this variable?

Thanks,
Scott



Scott Rifenbark
Intel Corporation
Yocto Project Documentation
503.712.2702
503.341.0418 (cell)

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Scott,

Off the top of my head, I know SRCPV is a combination of the VCS type and revision used in the actual build. Most interestingly, SRCPV will always contain the real revision used in the build, even if ${AUTOREV} is specified as the SRCREV for a given package. Note that if a package does not include SRCPV somewhere within its recipe, I believe setting SRCREV to ${AUTOREV} will have no effect, as ${AUTOREV} by itself simply resolves to the string "AUTOINC", which does not permute the hash of the recipe.

Note that I'm not really a Yocto expert nor am I sitting with the code in front of me right now, so someone can jump in if I missed something or got a detail incorrect.  I don't remember the exact format of the string, but I want to say its a combination of the VCS name, a Yocto-internal VCS identification number (just like 1 or 2, not some huge int), and the revision (be it a hash it git or an integer in SVN or whatever else is used by a supported VCS).

Kind regards,

Jerrod

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