On Thu, Sep 21, 2017 at 1:00 PM, Svein Seldal <svei...@seldal.com> wrote: > > To determine a image version, I'd like to read a VERSION file which is > located in the root of the layer. (Per our development procedure.) I'd like > to read it from a bbclass file. However I seem to be unable to find any > methods or variables to find a useful path to either the current bb-file or > the root of the layer. > > The only way I have found is to parse through BBLAYERS and guess at what my > own layer is of those, and then use the found to access the file. But this > feels very wacky. > > Is there a reason why bitbake doesn't have a variable path reference to the > current file?
Doesn't FILE give you exactly that? http://www.yoctoproject.org/docs/2.3/bitbake-user-manual/bitbake-user-manual.html#var-FILE You can derive from it using python, e.g. MYFILE := "${@os.path.abspath(os.path.dirname(d.getVar('FILE')) + '/../../myfile.txt')}" If you want to construct paths relative to the top level meta layers then COREBASE might be useful too. > > Best regards, > Svein > -- > _______________________________________________ > yocto mailing list > yocto@yoctoproject.org > https://lists.yoctoproject.org/listinfo/yocto -- _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
