Compiles the sources using the provided configurations

Compiles Google Protocol Buffer proto files to Java Sources.

The following options are available and should be configured in the project.clj:

:protoc-version :: the Protocol Buffers Compiler version to use. Defaults to :latest

:proto-source-paths :: vector of absolute paths or paths relative to the project root that contain the .proto files to be compiled. Defaults to ["src/proto"]

:proto-target-path :: the absolute path or path relative to the project root where the sources should be generated. Defaults to ${target-path}/generated-sources/protobuf

:protoc-grpc :: true (or empty map) to generate interfaces for gRPC service definitions with default settings. Can optionally provide a map with the following configs: :version - version number for gRPC codegen. Defaults to :latest. :target-path - absolute path or path relative to the project root where the sources should be generated. Defaults to the :proto-target-path Defaults to false.

:protoc-timeout :: timeout value in seconds for the compilation process Defaults to 60

Resolves the Google Protocol Buffers code generation artifact+version in the local maven repository if it exists or downloads from Maven Central

If the project.clj includes the com.google.protobuf/protobuf-java dependency, then we unpack it to a temporary location to use during compilation in order to make the builtin proto files available.

Given a string com.google.protobuf/protoc version or :latest, will ensure the required protoc executable is available in the local Maven repository either from a previous download, or will download from Maven Central.

Given a string io.grpc/protoc-gen-grpc-java version or :latest, will ensure the required protoc executable is available in the local Maven repository either from a previous download, or will download from Maven Central.

Validates the input arguments and returns a vector of error messages