Problem:
In the absence of a dependency cache, build-pkgs has
not information on which packages should be built first.
All it can do is try to build each package in a arbitrary order.
If the build fails, it is set aside and will be retired on
the next iteration. Builds fail when a BuildRequired package
can't be found, because it hasn't been built yet.
This was not an issue when cgcs-tis-repo, the home of the cache,
was stored in a git.
Solution:
Have build-pkgs invoke create_dependancy_cache.py if the
cache is not present.
Note: We only run this automatically once. If the user is
adding packages, or modifying the BuildRequires or Requires of
an existing package, they should re-run create_dependancy_cache.py
manually.
Change-Id: Id63e42903d9c0884470a990fb62fe1bafacd1849
Story: 2002835
Task: 24519
Signed-off-by: Scott Little <scott.little@windriver.com>
354ee9e9c8