holmes / rules_kotlin

Bazel rules for Kotlin

Overview

Skydoc documentation

This is a fork of the pubref kotlin rules. Detailed documentation is incoming. The old directory contains pubref logic and documentation.

Changes made to the pubref rules.

• The macros have been replaced with three basic rules. These model the java rules as much as possible -- kotlin_binary, kotlin_library and kotlin_test.
• The following concepts were added to the rules data, resource_jars, runtime_deps, resources, resources_strip_prefix, exports.
• The rules should dictate the version of kotlin used for the most case, the libraries are included in the distribution compile releases from JB -- pick them up from here (later: make the toolchain configurable).
• Persistent worker support was missing, worker protocol in pubref had other issues.
• The compiler depends on common external dependencies which aren't strictly needed (dagger, guava).
• Mixed-Mode compilation.

Next steps:

• kotlin_import rule.
• Compilation profiles: elements of the kotlin compiler should be configurable -- e.g., bytecode target (jdk1.6, jdk1.8), which stdlibs to use (jdk7, jdk8, reflect) etc. The compiler options attributes are currently disabled in the rules.
• kapt and annotation processing. This should be as easy to setup as the java rules.
• Ijars: They do not work with any kotlin code which provides inline definitions -- currently full jars are used. Need to come up with a strategy for this, potentially ask JB to add a compiler plugin that will produce ijars.