urwid doesn't know about the _select_first/last_selectable methods our
containers use to make tab-cycling work so its WidgetWrap doesn't
forward them along. So add a WidgetWrap that does, and use it in the one
place that it matters so far (more coming soon!).
When user configures network with subiquity, it's rendered
netplan should be wholly definitive. So, we remove the other files
that may have config. This fixes a bug where running in an instance
when running on a system where cloud-init had rendered a 'match' with
'macaddress'.
When writing netplan we keep 'macaddress' match in place but drop
others. The others may just wildcard from the installer environment,
but macaddress are likely by cloud-init or otherwise intentionally
written.
Also add an atomic write in subiquitycore/file_util and move the
netplan code into subiquitycore/netplan.py, and add some unit test
helpers from cloud-init.
This puts into place a tox.ini for running unit tests without
a large amount of deps installed into the system. For example,
we did not want to need libnl-route-3-dev or build-essential installed
in the system in order to run unit tests.
In order avoid import errors in the modules due to these missing
dependencies, we have added a 'fake_deps/' directory that provides
mock'd objects of the dependencies that were used.
The only installed packages necessary for this to run should be
tox itself and its dependencies (pip and friends). From a clean new
container we can then do:
apt-get install tox
git clone ...
tox
Also along the way:
* adjust setup.py to only need the DistUtilsExtra during 'build'.
This means tox usage doesn't require python3-distutils-extra.
* drop use of lsb_release in favor of built-in parsing.
This python module wasn't doing much. We can parse /etc/lsb-release
ourselves with less footprint. Also part of the motivation for this
is that lsb_release was not on pypi.
* replace use of StorageInfo in test_partition.py with a FakeStorageInfo
* .gitignore: ignore only the top level 'probert' directory so that
we can track fake_deps/probert.
* fix a couple escape chars, by using raw strings (r'').
* adjust gettext to return un-modified strings rather than '_(string)',
but support old style if FAKE_TRANSLATE=mangle.
Michael Hudson-Doyle