Converge on scala_import and java_import

[gkk-stripe]

The #101 switches from using scala_library to scala_import for importing external jars. For uniformity, we would like to switch from java_library to java_import too but we decided to hold until java_import stabilizes, see: https://github.com/bazelbuild/bazel/issues/3769

[aaronlevin]

FWIW, running this on a recent version (sha: f3d20a9c30449f2dcb5b5ea8ce0a76586d9f26a6) produced a 3rd party artifact that produced the following error when trying to build:

ERROR: $MY_PRJOECT/3rdparty/...redacted.../BUILD:1:1: name 'scala_import' is not defined (did you mean 'java_import'?)

I just had to switch the scala_import call to java_import and it worked .

If this isn't related to this issue, I can file a separate ticket.

[johnynek]

@aaronlevin you need to have scala_import in your prelude or added to the buildHeader like here:

https://github.com/johnynek/bazel-deps/blob/master/dependencies.yaml#L4

[jjudd]

I have a branch that has this working. I'll try to get it cleaned up, passing tests, and in code review next week.

[johnynek]

@jjudd thanks!

[tekumara]

@jjudd how did you go? would love to start using this so I don't have to use transitivity:exports anymore just to make aws sdk dependencies compile.