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def _lower_underscore_to_upper_camel(str):
humps = []
for hump in str.split('_'):
humps += [hump[0].upper() + hump[1:]]
return "".join(humps)
def objc_grpc_library(name, srcs, visibility=None):
src_path_elements = srcs[0].split('/')
src_dir = '/'.join(src_path_elements[:-1])
basename = src_path_elements[-1]
filename = basename[:-6] # remove .proto suffix
filename = _lower_underscore_to_upper_camel(filename)
protoc_command = "protoc -I . "
srcs_params = ""
for src in srcs:
srcs_params += " $(location %s)" % (src)
# Messages
protoc_messages_flags = "--objc_out=$(GENDIR)"
message_header = src_dir + '/' + filename + ".pbobjc.h"
message_implementation = src_dir + '/' + filename + ".pbobjc.m"
native.genrule(
name = name + "_mesages_codegen",
srcs = srcs,
outs = [message_header, message_implementation],
cmd = protoc_command + protoc_messages_flags + srcs_params,
)
native.objc_library(
name = name + "_messages",
hdrs = [message_header],
includes = ["."],
non_arc_srcs = [message_implementation],
deps = [
"//external:protobuf_objc",
],
)
# Services
protoc_services_flags = "--grpc_out=$(GENDIR) --plugin=protoc-gen-grpc=$(location //external:grpc_protoc_plugin_objc)"
service_header = src_dir + '/' + filename + ".pbrpc.h"
service_implementation = src_dir + '/' + filename + ".pbrpc.m"
native.genrule(
name = name + "_codegen",
srcs = srcs + ["//external:grpc_protoc_plugin_objc"],
outs = [service_header, service_implementation],
cmd = protoc_command + protoc_services_flags + srcs_params,
)
native.objc_library(
name = name,
hdrs = [service_header],
includes = ["."],
srcs = [service_implementation],
deps = [
":" + name + "_messages",
"//external:proto_objc_rpc",
],
visibility = visibility,
)
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