StarlingX has many repos to maintain meta data (patches and config files)
for packages, previously we added a local copy of those files as bitbake's
metadata for each recipe which may cause maintenance issue.
So add a method to avoid that, which includes:
* Add new recipes stx-${STX_REPO}-source for thoes stx git repo and put
them into the work-shared directory so they can be used by other recipes
that need the stx meta data, so it will reduce downloads and increase
re-use.
* Add stx-source.bbclass for easily creating the work-shared recipes
* Add stx-metadata.bbclass for those recipes that need the stx meta data,
it will add dependency on the stx-${STX_REPO}-source and redefine the
SRC_URI before do_patch, so it can find the patches in stx repo in
work-shard and do the patch, and other meta data like config files can
be used in do_install, then the local copy of those meta data can be
removed, and for the future upgrade, we don't need to manually check
and update those meta data any more.
Story: 2008952
Task: 42576
Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Change-Id: I0d07f2f6002eb0cee97ae86f95571d340de08a0b
067b37abdc