.DS_Store files published + empty package directory

[tkrotoff]

The issue was first reported in Lerna GitHub: lerna/lerna#1394, Lerna dev said it's an issue with yarn publish

When using lerna publish, .DS_Store files in subdirectories (but not in root directory) are published and should not.
Example:

• source code: https://github.com/tkrotoff/react-form-with-constraints/tree/a9e7b1ba7653d623859fc45345058cdd2967af4a/packages/react-form-with-constraints
• published package: https://unpkg.com/react-form-with-constraints@0.8.0-beta.1/src/

npm/yarn publish should ignore .DS_Store files by default so I don't know who is the culprit here.

Also got an empty package directory: https://unpkg.com/react-form-with-constraints@0.8.0-beta.1/ that I did not have before (and obviously I don't have this directory in my Git nor on my file system when running lerna publish).

Executable	Version
lerna --version	2.10.1
npm --version	5.6.0
yarn --version	1.6.0
node --version	v9.11.1

[rally25rs]

From a quick glance, .DS_Store is in the list of ignored files and a non-workspace yarn pack seems to properly ignore it:

~/Projects/yarn-test 🐒   yarn init -y
yarn init v1.6.0
warning The yes flag has been set. This will automatically answer yes to all questions, which may have security implications.
success Saved package.json
✨  Done in 0.03s.

~/Projects/yarn-test 🐒   mkdir src

~/Projects/yarn-test 🐒   touch ./ok.js

~/Projects/yarn-test 🐒   touch src/ok.js

~/Projects/yarn-test 🐒   touch src/.DS_Store

~/Projects/yarn-test 🐒   yarn pack -f test.tgz
yarn pack v1.6.0
success Wrote tarball to "test.tgz".
✨  Done in 0.05s.

~/Projects/yarn-test 🐒   tar -tf test.tgz
package
package/ok.js
package/package.json
package/src
package/src/ok.js

I don't have time to rig up a workspace and lerna example right now, but I'll try to circle back around to this later...