lib/lucene: merge jars using a java_binary rule

In I42fd1a130e ("Merge Lucene core and backward-codecs jars"), Dave
Borowitz introduced a script to concatenate META-INF/services/ files
for Codecs.

Buck would randomly pick one of the two service files. The solution
was to explicitly pick the first entry for class files, and
concatenate service files.

In Bazel, we can have Bazel do the work of merging jars. This is done
with the java_binary rule. This concatenates the service files, and
picks a single .class file from each input jar, as determined by the
ordering in the jars attribute.

Delete tools/merge_jars.py, as this was its only use. This also fixes
an issue where Mac users need to specify --host_force_python=PY2 if
they don't have Python 3.

Change-Id: Ibe62917e20eeb1824967782d4d510f3f63775fce
3 files changed
tree: de2ec17b7d242ee41aaa0a8002e2f62207f77704
  1. .settings/
  2. antlr3/
  3. contrib/
  4. Documentation/
  5. gerrit-gwtdebug/
  6. gerrit-gwtui/
  7. gerrit-gwtui-common/
  8. gerrit-plugin-gwtui/
  9. java/
  10. javatests/
  11. lib/
  12. plugins/
  13. polygerrit-ui/
  14. prolog/
  15. prologtests/
  16. proto/
  17. resources/
  18. tools/
  19. webapp/
  20. .bazelignore
  21. .bazelproject
  22. .bazelrc
  23. .bazelversion
  24. .editorconfig
  25. .git-blame-ignore-revs
  26. .gitignore
  27. .gitmodules
  28. .gitreview
  29. .mailmap
  30. .pydevproject
  31. BUILD
  32. COPYING
  33. INSTALL
  34. Jenkinsfile
  35. package.json
  36. README.md
  37. SUBMITTING_PATCHES
  38. version.bzl
  39. WORKSPACE
README.md

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