Currently, running sphinx_build fails for us because we depend on
diskimage-builder in our sphinx conf.py. This causes doc generation
on sites like rtfd to fail unless they install the diskimage-builder
module beforehand. We can, alternatively, import pbr directly and not
require the module as part of doc generation.
Change-Id: I41f222ff9c67950fc30841935a6a603f5718395e
Adding a test function which allows us to use elements to perform
element-specific tests. In order for this to work sanely, also adding
some configuration to our break system so we can assert on negative
tests.
Also adding a test for apt-sources to verify this code actually works.
Change-Id: I378a74255010eca192f5766b653f8a42404be5ea
Set the pbr option 'warnerrors' to make build_sphinx turns warnings into
error. Fix all warnings.
`tox -edocs` will thus abort whenever someone introduce a new error.
Change-Id: Id6d09768a241866e1fdc1a1e2bf90336f5c5087d
