Confusing errors for TOML front-matter issues

[ehuss]

I'm running into some problems with the TOML front-matter checks. They look roughly like this:

Error:
   0: markdown file must start with the line `+++`

Location:
   front_matter/src/lib.rs:24

The problem is that it doesn't tell me which file is having the problem, which makes me need to hunt down where it was having an issue (it was not with the file I was currently working on). The same goes for other kinds of errors like:

Error:
   0: TOML parse error at line 1, column 1
   0:   |
   0: 1 | layout = "post"
   0:   | ^^^^^^^^^^^^^^^
   0: missing field `date`
   0:

Location:
   front_matter/src/lib.rs:31

[senekor]

I can improve the error message, but out of curiosity, how did a file you weren't working on cause this error? The ones on master should all pass the test...

[ehuss]

I tend to have various scratch posts or old posts I'm working on that aren't checked in.