This is all minor stuff: unreachable debug code (that should be commented-out
instead of in an 'if False:' block), unnecessary 'pass' and 'global'
statements, redundantly-initialized variables. No behavior changes. Nothing
here was actually broken, it just looked suspicious to the static analysis at
https://lgtm.com/projects/g/tahoe-lafs/tahoe-lafs/alerts/?mode=list .
This moves all magic-folder configs to a single YAML
file. We load legacy config fine and don't mess with
legacy config unless you use a magic-folder command that
changes the config.
Increase test coverage
Also adds a --poll-interval option to both 'magic-folder join'
and 'magic-folder create' so that the integration tests can pass
something "very short".
This forces the Uploader and Downloader to implement a _scan_delay
method and makes the naming more consistent with what's actually
happening. Also, fix a few "bugs" in the names of args in the
mocks for some tests.
This re-factors the magic-folder tests to abstract
the whole "do a file operation" so we can properly
send fake (or wait for real) inotify events to the
uploader/downloader. This speeds up the tests quite
a bit and makes test_alice_bob reasonable again (at
about 1.5s instead of over 30s).
This doesn't reveal very much information, but does tell
you if magic-folder is currently working and if not it will
indicate when the last attempt to do a remote scan was.
This keeps re-trying the initial magic-folder scan and alerts
the user (via logs only :/) until it succeeds at least once.
After this happens and the node has started up, it will continue
to re-try if enough storage servers go away later such that the
remote collection can't be retrieved.
* uses @inlineCallbacks to turn the _lazy_tail recursion into
a "real" looking loop;
* remove the need for "immediate" vs delayed iteration of said loop;
* make it easier for the unit-tests to control the behavior of the
uploader/downloader;
* consolidates (some) setup/teardown code into the setUp and tearDown
hooks provided by unittest so unit-tests aren't doing that themselves
* re-factors some of the unit-tests to use an @inlineCallbacks style
so they're easier to follow and debug
This doesn't tackle the "how to know when our inotify events have arrived"
problem the unit-tests still have, nor does it eliminate the myriad bits
of state that get added to tests via all the MixIns.
