Stop empty messages being sent and log warning gracefully

[RedProkofiev]

Resolves #261

Empty messages and files render as empty lines through Dirq but a simple len() > 0 check means that empty files will now return None, and some changes to send_all now gracefully handle None input to log a warning.

[RedProkofiev]

Codeclimate continually fails due to the extra if statement needed for the log/warning element. Unsure if possible to fix neatly without a function rewrite, so I've put a truly ugly fix here for review as a reminder to rewrite it if needed.

[tofu-rocketry]

You've got one of the LDAP commits in here.

[gregcorbett]

Codeclimate continually fails due to the extra if statement needed for the log/warning element. Unsure if possible to fix neatly without a function rewrite, so I've put a truly ugly fix here for review as a reminder to rewrite it if needed.

I would go for that fix / function re-write. Something like the following would work, and that would avoid the need for log_string[0] == 'M'. right?

if argo_id is not None:
    log.info("Sent..."
else:
    log.warning("Message..."

[RedProkofiev]

it wouldn't work: Argo_ID is out of scope in that context because of the way you're doing the logs: the argo_id is used only for constructing the log string. So the log string is the only thing passed out of scope
I think it'll require a rewrite to make the warning work neatly. Also, the if...else statement would still fail complexity requirements under 15, I've tried!!!!

Should I just try and rewrite the whole thing?

[RedProkofiev]

it wouldn't work: Argo_ID is out of scope in that context because of the way you're doing the logs: the argo_id is used only for constructing the log string. So the log string is the only thing passed out of scope I think it'll require a rewrite to make the warning work neatly. Also, the if...else statement would still fail complexity requirements under 15, I've tried!!!!

Should I just try and rewrite the whole thing?

I just realised I'm being very silly here! sorry, ignore me, it's totally in scope. However we're resolving to instead just have three separate log message/warning elements rather than upping the complexity with another if...else block. :)