pb文件有多重import时如何生成

git clone git@git.code.oa.com:ads/main.git ./main && cd main

REPO_DIR=`pwd`

cd ./app/qzap/service/advertiser_datamining/Adtools/project/UAE/proto

protoc --go_out=plugins=grpc:/some/dir ./mixer_service.proto -I${REPO_DIR} -I.