Config include trailing slash

[billykong]

This is a 🐛 bug fix.

• I've added tests
• The test suite passes locally

Summary

include in the configuration file should include directory when trailing slash is present, e.g.

# in _config.yml
include:
  - _pages/

should include the directory _pages/ if exists.

The current behavior in the master is that including _pages will include the directory while _pages/ does not.

This PR check that _pages/ matches a directory named _pages but not file.

Context

Resolves #7951

[billykong]

Hi @DirtyF, is there any problem with this pull request that needs to be fixed or something I should do? It is my first time going through the pull request workflow in OSS. Please feel free to let me know if I missed something.

[DirtyF]

@billykong nope, we're good, we just need to take the time to review your submission.

[billykong]

Thanks @DirtyF and @ashmaroli

[ashmaroli]

@billykong Can you test separately if the issue you're resolving here can be reproduced with Jekyll 3.8.6..? (Want to see if the issue is a regression in Jekyll 4.0)..
Thanks.

[billykong]

can be reproduced with Jekyll 3.8.6..?

Hi @ashmaroli , it can be reproduced in Jekyll 3.8.6

[billykong]

Tested with Jekyll 3.8.6.

With Trailing slash directory:

The _pages directory is not generated.

Without Trailing slash directory:

The _pages directory is generated.

[ashmaroli]

Thanks for testing with Jekyll 3.8.6 @billykong, So it is certain now that the bug existed prior to Jekyll 4.0 and Jekyll 3.8.6 👍

[DirtyF]

Thanks @billykong

[ashmaroli]

Thanks @billykong
@jekyllbot: merge +bug