| # This BUILD file shows how to use protobuf with bazel. Before you can use |
| # proto_library/<lang>_proto_library rules in a BUILD file, you need to |
| # include protobuf repo as remote repositories in your WORKSPACE file. See |
| # the WORKSPACE file in the same directory with this BUILD file for an |
| # example. |
| |
| load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_proto_library") |
| load("@rules_java//java:defs.bzl", "java_binary", "java_lite_proto_library", "java_proto_library") |
| load("@rules_proto//proto:defs.bzl", "proto_library") |
| |
| # For each .proto file, a proto_library target should be defined. This target |
| # is not bound to any particular language. Instead, it defines the dependency |
| # graph of the .proto files (i.e., proto imports) and serves as the provider |
| # of .proto source files to the protocol compiler. |
| # |
| # Remote repository "com_google_protobuf" must be defined to use this rule. |
| licenses(["notice"]) |
| |
| filegroup( |
| name = "srcs", |
| srcs = glob(["**"]), |
| visibility = ["//visibility:public"], |
| ) |
| |
| proto_library( |
| name = "addressbook_proto", |
| srcs = ["addressbook.proto"], |
| deps = ["@com_google_protobuf//:timestamp_proto"], |
| ) |
| |
| # The cc_proto_library rule generates C++ code for a proto_library rule. It |
| # must have exactly one proto_library dependency. If you want to use multiple |
| # proto_library targets, create a separate cc_proto_library target for each |
| # of them. |
| # |
| # Remote repository "com_google_protobuf_cc" must be defined to use this rule. |
| cc_proto_library( |
| name = "addressbook_cc_proto", |
| deps = [":addressbook_proto"], |
| ) |
| |
| # cc_library/cc_binary targets can depend on cc_proto_library targets. |
| cc_binary( |
| name = "add_person_cpp", |
| srcs = ["add_person.cc"], |
| deps = [":addressbook_cc_proto"], |
| ) |
| |
| cc_binary( |
| name = "list_people_cpp", |
| srcs = ["list_people.cc"], |
| deps = [":addressbook_cc_proto"], |
| ) |
| |
| # Similar to cc_proto_library but for Java. |
| # |
| # Remote repository "com_google_protobuf_java" must be defined to use this rule. |
| java_proto_library( |
| name = "addressbook_java_proto", |
| deps = [":addressbook_proto"], |
| ) |
| |
| java_binary( |
| name = "add_person_java", |
| srcs = ["AddPerson.java"], |
| main_class = "AddPerson", |
| deps = [":addressbook_java_proto"], |
| ) |
| |
| java_binary( |
| name = "list_people_java", |
| srcs = ["ListPeople.java"], |
| main_class = "ListPeople", |
| deps = [":addressbook_java_proto"], |
| ) |
| |
| # Java lite. |
| # |
| # Remote repository "com_google_protobuf_javalite" must be defined to use this |
| # rule. |
| java_lite_proto_library( |
| name = "addressbook_java_lite_proto", |
| deps = [":addressbook_proto"], |
| ) |
| |
| # Java lite API is a subset of the regular Java API so if you only uses this |
| # subset in your code, you can actually compile your code against both (i.e., |
| # share code between server build and Android build). |
| # |
| # The lite version has a smaller code size, and you can see that by comparing |
| # the resulted .jar file: |
| # |
| # $ bazel build :add_person_java_deploy.jar :add_person_java_lite_deploy.jar |
| # $ ls -l bazel-bin/*_deploy.jar |
| # -r-xr-xr-x 1 xiaofeng eng 1230797 Sep 8 12:24 bazel-bin/add_person_java_deploy.jar |
| # -r-xr-xr-x 1 xiaofeng eng 236166 Sep 8 12:24 bazel-bin/add_person_java_lite_deploy.jar |
| # |
| # In the above example, the lite .jar file is 6 times smaller. With proper |
| # proguard inlining/stripping, the difference can be much more larger than |
| # that. |
| java_binary( |
| name = "add_person_java_lite", |
| srcs = ["AddPerson.java"], |
| main_class = "AddPerson", |
| deps = [":addressbook_java_lite_proto"], |
| ) |
| |
| java_binary( |
| name = "list_people_java_lite", |
| srcs = ["ListPeople.java"], |
| main_class = "ListPeople", |
| deps = [":addressbook_java_lite_proto"], |
| ) |