Add option to edit LGTM message and to turn it off

[bwrsandman]

Implements #47

• Add description about empty string skipping LGTM message
• Test empty message
• Test Custom message
• Test with default message

[ZedThree]

Thanks @bwrsandman! I take it setting it to the empty string means the comment doesn't get posted -- does it need an explicit check, or does GitHub automatically reject empty comments?

[bwrsandman]

There is an explicit check here:
https://github.com/ZedThree/clang-tidy-review/pull/48/files#diff-32e111aa752f95e484818ff16dedaa5bf4a768785886e9fa705b2b41764be060R94

I don't know what Github would do with an empty message

I'm currently testing it it works here:
openblack/openblack#526
openblack/openblack#527

[ZedThree]

Ah, I missed that, sorry! Hadn't had enough caffeine :)

Would you mind just noting in the description that setting it to the empty string turns off the comment?

If you're happy this works for your case, I'll merge it

[bwrsandman]

Not sure why but it posts empty quotes...
openblack/openblack#527 (comment)

[ZedThree]

Because we're passing the arguments through Github's YAML, then Docker, then bash, it's quite possible it's getting passed through as "''". I had something like that before, so there's a strip_enclosing_quotes function that makes sure all the quotes are removed. Then we should end up with an actual empty string and the not body conditional should trigger.

[bwrsandman]

I've tested and added the part about disabling the comment.

[ZedThree]

Awesome, thanks @bwrsandman !