Java rules

Rules for generating Java protobuf and gRPC .jar files and libraries using standard Protocol Buffers and gRPC-Java. Libraries are created with the Bazel native java_library

RuleDescription
java_proto_compileGenerates a Java protobuf srcjar artifact
java_grpc_compileGenerates a Java protobuf+gRPC srcjar artifact
java_proto_libraryGenerates a Java protobuf library using java_library
java_grpc_libraryGenerates a Java protobuf+gRPC library using java_library

java_proto_compile

Generates a Java protobuf srcjar artifact

WORKSPACE

load("@rules_proto_grpc//java:repositories.bzl", rules_proto_grpc_java_repos = "java_repos")

rules_proto_grpc_java_repos()

BUILD.bazel

load("@rules_proto_grpc//java:defs.bzl", "java_proto_compile")

java_proto_compile(
    name = "person_java_proto",
    protos = ["@rules_proto_grpc//example/proto:person_proto"],
)

java_proto_compile(
    name = "place_java_proto",
    protos = ["@rules_proto_grpc//example/proto:place_proto"],
)

java_proto_compile(
    name = "thing_java_proto",
    protos = ["@rules_proto_grpc//example/proto:thing_proto"],
)

Attributes

NameTypeMandatoryDefaultDescription
protoslist<ProtoInfo>true[]List of labels that provide a ProtoInfo (such as rules_proto proto_library)
optionsdict<string, list(string)>false[]Extra options to pass to plugins, as a dict of plugin label -> list of strings. The key * can be used exclusively to apply to all plugins
verboseintfalse0The verbosity level. Supported values and results are 1: show command, 2: show command and sandbox after running protoc, 3: show command and sandbox before and after running protoc, 4. show env, command, expected outputs and sandbox before and after running protoc
prefix_pathstringfalse""Path to prefix to the generated files in the output directory
extra_protoc_argslist<string>false[]A list of extra args to pass directly to protoc, not as plugin options

Plugins

  • @rules_proto_grpc//java:java_plugin

java_grpc_compile

Generates a Java protobuf+gRPC srcjar artifact

WORKSPACE

load("@rules_proto_grpc//java:repositories.bzl", rules_proto_grpc_java_repos = "java_repos")

rules_proto_grpc_java_repos()

BUILD.bazel

load("@rules_proto_grpc//java:defs.bzl", "java_grpc_compile")

java_grpc_compile(
    name = "thing_java_grpc",
    protos = ["@rules_proto_grpc//example/proto:thing_proto"],
)

java_grpc_compile(
    name = "greeter_java_grpc",
    protos = ["@rules_proto_grpc//example/proto:greeter_grpc"],
)

Attributes

NameTypeMandatoryDefaultDescription
protoslist<ProtoInfo>true[]List of labels that provide a ProtoInfo (such as rules_proto proto_library)
optionsdict<string, list(string)>false[]Extra options to pass to plugins, as a dict of plugin label -> list of strings. The key * can be used exclusively to apply to all plugins
verboseintfalse0The verbosity level. Supported values and results are 1: show command, 2: show command and sandbox after running protoc, 3: show command and sandbox before and after running protoc, 4. show env, command, expected outputs and sandbox before and after running protoc
prefix_pathstringfalse""Path to prefix to the generated files in the output directory
extra_protoc_argslist<string>false[]A list of extra args to pass directly to protoc, not as plugin options

Plugins

  • @rules_proto_grpc//java:java_plugin
  • @rules_proto_grpc//java:grpc_java_plugin

java_proto_library

Generates a Java protobuf library using java_library

WORKSPACE

load("@rules_proto_grpc//java:repositories.bzl", rules_proto_grpc_java_repos = "java_repos")

rules_proto_grpc_java_repos()

BUILD.bazel

load("@rules_proto_grpc//java:defs.bzl", "java_proto_library")

java_proto_library(
    name = "person_java_proto",
    protos = ["@rules_proto_grpc//example/proto:person_proto"],
    deps = ["place_java_proto"],
)

java_proto_library(
    name = "place_java_proto",
    protos = ["@rules_proto_grpc//example/proto:place_proto"],
    deps = ["thing_java_proto"],
)

java_proto_library(
    name = "thing_java_proto",
    protos = ["@rules_proto_grpc//example/proto:thing_proto"],
)

Attributes

NameTypeMandatoryDefaultDescription
protoslist<ProtoInfo>true[]List of labels that provide a ProtoInfo (such as rules_proto proto_library)
optionsdict<string, list(string)>false[]Extra options to pass to plugins, as a dict of plugin label -> list of strings. The key * can be used exclusively to apply to all plugins
verboseintfalse0The verbosity level. Supported values and results are 1: show command, 2: show command and sandbox after running protoc, 3: show command and sandbox before and after running protoc, 4. show env, command, expected outputs and sandbox before and after running protoc
prefix_pathstringfalse""Path to prefix to the generated files in the output directory
extra_protoc_argslist<string>false[]A list of extra args to pass directly to protoc, not as plugin options
depslist<Label/string>false[]List of labels to pass as deps attr to underlying lang_library rule
exportslistfalse[]List of labels to pass as exports attr to underlying lang_library rule

java_grpc_library

Generates a Java protobuf+gRPC library using java_library

WORKSPACE

load("@rules_proto_grpc//java:repositories.bzl", rules_proto_grpc_java_repos = "java_repos")

rules_proto_grpc_java_repos()

load("@rules_jvm_external//:defs.bzl", "maven_install")
load("@io_grpc_grpc_java//:repositories.bzl", "IO_GRPC_GRPC_JAVA_ARTIFACTS", "IO_GRPC_GRPC_JAVA_OVERRIDE_TARGETS", "grpc_java_repositories")

maven_install(
    artifacts = IO_GRPC_GRPC_JAVA_ARTIFACTS,
    generate_compat_repositories = True,
    override_targets = IO_GRPC_GRPC_JAVA_OVERRIDE_TARGETS,
    repositories = [
        "https://repo.maven.apache.org/maven2/",
    ],
)

load("@maven//:compat.bzl", "compat_repositories")

compat_repositories()

grpc_java_repositories()

BUILD.bazel

load("@rules_proto_grpc//java:defs.bzl", "java_grpc_library")

java_grpc_library(
    name = "thing_java_grpc",
    protos = ["@rules_proto_grpc//example/proto:thing_proto"],
)

java_grpc_library(
    name = "greeter_java_grpc",
    protos = ["@rules_proto_grpc//example/proto:greeter_grpc"],
    deps = ["thing_java_grpc"],
)

Attributes

NameTypeMandatoryDefaultDescription
protoslist<ProtoInfo>true[]List of labels that provide a ProtoInfo (such as rules_proto proto_library)
optionsdict<string, list(string)>false[]Extra options to pass to plugins, as a dict of plugin label -> list of strings. The key * can be used exclusively to apply to all plugins
verboseintfalse0The verbosity level. Supported values and results are 1: show command, 2: show command and sandbox after running protoc, 3: show command and sandbox before and after running protoc, 4. show env, command, expected outputs and sandbox before and after running protoc
prefix_pathstringfalse""Path to prefix to the generated files in the output directory
extra_protoc_argslist<string>false[]A list of extra args to pass directly to protoc, not as plugin options
depslist<Label/string>false[]List of labels to pass as deps attr to underlying lang_library rule
exportslistfalse[]List of labels to pass as exports attr to underlying lang_library rule