Matching for `excluded_patterns` in `.index.yml`

[andyw8]

As mentioned in https://github.com/Shopify/ruby-lsp/pull/1827

Let's say we have a file abc.rb that we want to exclude from indexing.

If we try exclude it in index.yml with:

excluded_patterns:
  - "abc.rb"

or

excluded_patterns:
  - "/abc.rb"

then it will still be indexed. Instead we need to write:

excluded_patterns:
  - "**/abc.rb"

which is not so obvious, and is different from other exclusion mechanism such as .gitignore.

[github-actions[bot]]

This issue is being marked as stale because there was no activity in the last 2 months

[andyw8]

@vinistock @st0012 this seems like a bug, right?

(I know we're planning to eliminate the config file, but this would likely also apply to the config settings approach)

[andyw8]

Note: Even though we are deprecating .index.yml this may still be an issue for the indexing configuration.

[github-actions[bot]]

This issue is being marked as stale because there was no activity in the last 2 months