Re: Enable a recipe/package only when other dependent recipe/package is part of image.

[Amarnath Valluri <amarnath.valluri@intel.com>]

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On Friday 22 April 2016 02:09 PM, Valluri, Amarnath wrote:
>
> Hello,
>
> I have my own layer, that provides configuration packages for core 
> Linux components, for example ‘connman-conf’ for ‘connman’ package.
>
> I would like to provide a pakcagegroup-config, that should 
> automatically select the configuration packages that are part of image 
> configuration. Say if ‘connman’ is part of image then it should add 
> ‘connman-conf’ to its RDEPENDS_${PN}.
>
> For this I try to use ‘oe.packagedata.pkgmap’, to check if the core 
> component exists as below:
>
> --------------------------------------------------------------------
>
> def check_if_enabled(comp, trueval, d):
>
>    import oe.packagedata
>
>    pkgmap = oe.packagedata.pkgmap(d)
>
>    if pkgmap is not None and pkgmap.get(comp) is not None:
>
>       return trueval
>
>    return “”
>
> RDEPENDS_${PN} = “ \
>
> ${@check_if_enabled(“connman”, “connman-conf”, d)} \
>
> “
>
> -----------------------------------------------------------
>
> This works as expected when the packagedata is available, i.e., image 
> is build at least once first, then my layer is added to BBLAYERS and 
> then rebuild the image.
>
> But this fails when there is no packagedata cache available.
>
> Can someone help me to resolve this properly.
>
> Thanks,
>
> Amarnath
>

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