[yocto] Use of BBFILE_PATTERN in conf/layer.conf

[Andrew Luo]

I see this example in the doc:


# We have a conf and classes directory, add to BBPATH
BBPATH := "${BBPATH}:${LAYERDIR}"

# We have a recipes directory containing both .bb and .bbappend files, add to BBFILES
BBFILES := "${BBFILES} ${LAYERDIR}/recipes/*/*.bb \
             ${LAYERDIR}/recipes/*/*.bbappend"

BBFILE_COLLECTIONS += "emenlow"
BBFILE_PATTERN_emenlow := "^${LAYERDIR}/"
BBFILE_PRIORITY_emenlow = "6"

The doc says this about the BBFILE_PATTERN variable:

Variable that expands to match files from BBFILES in a particular layer. BBFILE_PATTERN is used in the conf/layer.conf file and must contain the name of the specific layer (e.g. BBFILE_PATTERN_emenlow).

so it sounds like the BBFILE_PATTERN is a regular expression to filter just the bb files belonging to this layer from all the BBFILES.  But when I set this variable to include also the recipes dir like so:

BBFILE_PATTERN_emenlow := "^${LAYERDIR}/recipes/", the layer name does not show up in bitbake-layers show-recipes command.  I mean this is just a more specific pattern for my recipe files in the particular layer right?  Found that in the get_file_layer_dir function:

    def get_file_layerdir(self, filename):
        for layer, _, regex, _ in self.bbhandler.cooker.recipecache.bbfile_config_priorities:
            if regex.match(filename):
                for layerdir in self.bblayers:
                    if regex.match(os.path.join(layerdir, 'test')) and re.match(layerdir, filename):
                        return layerdir
        return "?"

so looks like anything more specific than the ${LAYERDIR} will not match <layerdir>/test test string, so it won't work.  Is this intentional?

Thanks,

Andrew
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.yoctoproject.org/pipermail/yocto/attachments/20140130/f6ce727f/attachment.html>