synth.py

# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""This script is used to synthesize generated parts of this library."""

import os
from pathlib import Path
import tempfile
from typing import Union

import synthtool as s
from synthtool.languages import java
from synthtool.sources import git
from synthtool import logger, shell

GOOGLEAPIS_URL = git.make_repo_clone_url("googleapis/googleapis")

logger.debug("Cloning googleapis.")
googleapis = git.clone(GOOGLEAPIS_URL)

def bazel_build(target: str, cwd: Union[Path, str]) -> Path:
    """Build a bazel target and return the output build directory."""
    old_cwd = os.getcwd()
    os.chdir(str(cwd))

    bazel_run_args = [
        "bazel",
        "--max_idle_secs=240",
        "build",
        target,
    ]

    logger.debug(f"Generating code for: {target}.")
    shell.run(bazel_run_args)

    output_dir = Path(f"bazel-bin{os.path.sep}{target[2:].split(':')[0]}").resolve()
    os.chdir(old_cwd)

    return output_dir

def build_proto(target):
    """Build a proto build target and copy all generate source files."""
    output = bazel_build(
        target=target,
        cwd=googleapis,
    )

    src_output = Path(tempfile.mkdtemp())
    for proto_jar in output.glob("*-speed-src.jar"):
        logger.debug(f"unzipping: {os.path.basename(proto_jar)}")
        shell.run(["unzip", "-o", proto_jar, "-d", src_output / "src"])

    java.fix_proto_headers(src_output)
    s.copy(src_output / "src/com", "proto-google-common-protos/src/main/java/com")
    proto_path = (target.split(":")[0])[2:]
    s.copy(googleapis / proto_path / f"*.proto", "proto-google-common-protos/src/main/proto/"+ proto_path )

def build_grpc(target):
    """Build a grpc build target and copy all generate source files."""
    output = bazel_build(
        target=target,
        cwd=googleapis,
    )

    src_output = Path(tempfile.mkdtemp())
    for proto_jar in output.glob("*grpc-src.jar"):
        logger.debug(f"unzipping: {os.path.basename(proto_jar)}")
        shell.run(["unzip", "-o", proto_jar, "-d", src_output / "src"])

    java.fix_grpc_headers(src_output, "")
    s.copy(src_output / "src/com", "grpc-google-common-protos/src/main/java/com")

build_proto("//google/api:api_java_proto")
build_proto("//google/cloud/audit:audit_java_proto")
build_proto("//google/geo/type:viewport_java_proto")
build_proto("//google/logging/type:type_java_proto")
build_proto("//google/longrunning:longrunning_java_proto")
build_proto("//google/rpc:rpc_java_proto")
build_proto("//google/rpc/context:attribute_context_java_proto")
build_proto("//google/type:type_java_proto")
build_proto("//google/cloud:extended_operations_java_proto")

build_grpc("//google/longrunning:longrunning_java_grpc")

java.format_code("proto-google-common-protos/src")
java.format_code("grpc-google-common-protos/src")

os.remove("proto-google-common-protos/src/main/java/com/google/cloud/audit/BigQueryAuditMetadata.java")
os.remove("proto-google-common-protos/src/main/java/com/google/cloud/audit/BigQueryAuditMetadataOrBuilder.java")
os.remove("proto-google-common-protos/src/main/java/com/google/cloud/audit/BigQueryAuditMetadataProto.java")
os.remove("proto-google-common-protos/src/main/proto/google/cloud/audit/bigquery_audit_metadata.proto")
os.remove("proto-google-common-protos/src/main/proto/google/cloud/common_resources.proto")

java.common_templates(excludes=[
  'README.md',
  'samples/*',
  '.github/workflows/samples.yaml',
])