With the implementation of revisioned repository to the CLI in
https://review.openstack.org/#/c/577886 there was a change to
the lint command [0], which changed it from being a global lint
to a site-level (targetted lint)... kind of: Only the CLI logic
was modified to support targetted single-site linting. Thus,
the first issue this patch set addresses is implementing the
back-end logic to realize targetted, single-site linting.
The second issue this patch set addresses is re-supporting global
linting (linting all sites within a repository) which means that
this partially reverts [0] which had (kind of) replaced global
linting with per-site linting.
So, this patch set:
1) Implements targetted, single-site linting back-end logic
2) Re-implements global linting for all sites in a repo
3) Adds unit tests for both
4) Adds some helper functions to util.engine.definition to
help with 1) and 2)
[0] https://review.openstack.org/#/c/577886/4/src/bin/pegleg/pegleg/cli.py@191
Change-Id: I5147282556763d93dfaf06912d2c4c876e1bd69f
57a6c6a84e