GRPCIO_VIRTUALENV=$(shell pwd)/grpc_python_venv

GENERATED_DIR=$(shell pwd)/generated_python

DATASTORE_DIR=$(shell pwd)/datastore/google/cloud/datastore/_generated

PROTOC_CMD=$(GRPCIO_VIRTUALENV)/bin/python -m grpc.tools.protoc

GOOGLEAPIS_PROTOS_DIR=$(shell pwd)/googleapis-pb

help:

@echo 'Makefile for google-cloud-python Datastore protos '

@echo ' '

@echo ' make generate Generates the protobuf modules'

@echo ' make clean Clean generated files '

generate:

# Ensure we have a virtualenv w/ up-to-date grpcio/grpcio-tools

[ -d $(GRPCIO_VIRTUALENV) ] || python2.7 -m virtualenv $(GRPCIO_VIRTUALENV)

$(GRPCIO_VIRTUALENV)/bin/pip install --upgrade grpcio grpcio-tools

# Retrieve git repos that have our *.proto files.

[ -d googleapis-pb ] || git clone https://github.com/googleapis/googleapis googleapis-pb --depth=1

cd googleapis-pb && git pull origin master

# Make the directory where our *_pb2.py files will go.

mkdir -p $(GENERATED_DIR)

# Generate all *_pb2.py files that do not require gRPC.

$(PROTOC_CMD) \

--proto_path=$(GOOGLEAPIS_PROTOS_DIR) \

--python_out=$(GENERATED_DIR) \

$(GOOGLEAPIS_PROTOS_DIR)/google/datastore/v1/datastore.proto \

$(GOOGLEAPIS_PROTOS_DIR)/google/datastore/v1/entity.proto \

$(GOOGLEAPIS_PROTOS_DIR)/google/datastore/v1/query.proto

# Move the newly generated *_pb2.py files into our library.

cp $(GENERATED_DIR)/google/datastore/v1/* $(DATASTORE_DIR)

# Remove all existing *.proto files before we replace

rm -f $(DATASTORE_DIR)/*.proto

# Copy over the *.proto files into our library.

cp $(GOOGLEAPIS_PROTOS_DIR)/google/datastore/v1/*.proto $(DATASTORE_DIR)

# Rename all *.proto files in our library with an

# underscore and remove executable bit.

cd $(DATASTORE_DIR) && \

for filename in *.proto; do \

chmod -x $$filename ; \

mv $$filename _$$filename ; \

done

# Separate the gRPC parts of the datastore service from the

# non-gRPC parts so that the protos can be used without gRPC.

GRPCIO_VIRTUALENV="$(GRPCIO_VIRTUALENV)" \

GENERATED_SUBDIR=$(GENERATED_SUBDIR) \

python scripts/make_datastore_grpc.py

# Rewrite the imports in the generated *_pb2.py files.

python scripts/rewrite_imports.py $(DATASTORE_DIR)/*pb2.py

clean:

rm -fr $(GENERATED_DIR)

.PHONY: generate clean