make file globs compatible with rules_docker's py3_image()

[lazcamus]

There are 2 incompatibilities with the python install that pyenv creates:

• empty directories - bazel's sandbox mode + rules_pkg doesn't work with
  them: 'File exists' error when building pkg_tar from srcs containing directories bazelbuild/rules_pkg#135
• spaces in filenames - Allow any characters in filenames / labels bazelbuild/bazel#374

So pass flags to glob() to exclude these sticking points, and you can now build
a container (or tar) with rules_pyenv built python.

[ddlees]

@lazcamus This looks great. Would you be willing to also update the examples to show how to build a container with pyenv built python? If not I'll try to pull some time together and do it myself when I can get to it.

[lazcamus]

I'm happy to do it, but like you it involves finding time to do it :)

…

On Sat, Mar 12, 2022 at 3:47 AM Dillon Lees ***@***.***> wrote: @lazcamus <https://github.com/lazcamus> This looks great. Would you be willing to also update the examples to show how to build a container with pyenv built python? If not I'll try to pull some time together and do it myself when I can get to it. — Reply to this email directly, view it on GitHub <#9 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AWXYTGIXVAACJHJGQ34KB23U7OINJANCNFSM5QMTHC4A> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you were mentioned.Message ID: ***@***.***>

[ddlees]

Such is life 😄 . I'll try to cobble something together sometime soon unless you beat me to it. In the meantime, I'll merge so you and others can at least pull from the branch to try it out.