fixes bazelbuild/rules_nodejs#1567 Recursively copy files from subdir…

[joeljeske]

…ectories into mirrored structure in the npm archive.

PR Checklist

Please check if your PR fulfills the following requirements:

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

I don't think there are any relevant documentation updates for this fix. I think it was the expected behavior.

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature (please, look at the "Scope of the project" section in the README.md file)
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Other... Please describe:

What is the current behavior?

Issue Number: #1567

What is the new behavior?

Directories can be copied into a mirror structure inside the npm archive. Presumably these directories would be created using the declare_directory action.

Does this PR introduce a breaking change?

• Yes
• No

Other information

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[joeljeske]

@googlebot I signed it!

[googlebot]

CLAs look good, thanks!

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[alexeagle]

THANK YOU!

[alexeagle]

super job adding tests 🎉