Docker Integration (for Binding Creation)

Dockerfile

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+FROM ubuntu:18.04 as protoc
+
+WORKDIR /usr/src/protoc
+
+RUN apt-get update \
+    && apt-get install -y \
+        wget unzip \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN wget -O /usr/src/protoc/protoc.zip "https://github.com/protocolbuffers/protobuf/releases/download/v3.12.3/protoc-3.12.3-linux-x86_64.zip" \
+    && unzip protoc.zip
+
+FROM ubuntu:18.04
+
+RUN apt-get update \
+    && apt-get install -y \
+        python3 python3-pip golang git \
+    && pip3 install nose protobuf
+
+RUN apt-get install -y --no-install-recommends \
+        software-properties-common nodejs npm \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN go get -u github.com/golang/protobuf/protoc-gen-go
+
+WORKDIR /usr/src/app
+
+COPY ./nodejs/package.json /usr/src/app/nodejs/package.json
+RUN npm --prefix /usr/src/app/nodejs/ install
+
+COPY --from=protoc /usr/src/protoc/bin/protoc /usr/local/bin/protoc
+COPY . /usr/src/app
+
+CMD [ "/bin/sh", "./build.sh"]

build.sh

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+cd /usr/src/
+git clone https://github.com/google/transit.git
+cd /usr/src/app/
+
+mkdir build
+rm -rfv build/*
+mkdir build/python
+mkdir build/java
+mkdir build/javascript
+mkdir build/go
+
+export PATH=$PATH:/root/go/bin
+
+protoc gtfs-realtime.proto --proto_path /usr/src/transit/gtfs-realtime/proto --python_out=build/python --java_out=build/java --go_out=build/go/
+
+cp -R /usr/src/app/nodejs /usr/src/nodejs
+cp /usr/src/transit/gtfs-realtime/proto/gtfs-realtime.proto /usr/src/gtfs-realtime.proto
+cd /usr/src/nodejs/
+npm run buildProto
+cp /usr/src/nodejs/gtfs-realtime.js /usr/src/app/build/javascript/gtfs-realtime.js
+
+cp -R /usr/src/app/python /usr/src/python
+cp /usr/src/app/build/python/gtfs_realtime_pb2.py /usr/src/python/gtfs_realtime_pb2.py
+nosetests /usr/src/python
+
+cp -R /usr/src/app/python /usr/src/python
+cp /usr/src/app/build/python/gtfs_realtime_pb2.py /usr/src/python/gtfs_realtime_pb2.py
+nosetests /usr/src/python
+
+cp -R /usr/src/app/golang /usr/src/golang
+cp /usr/src/app/build/go/gtfs-realtime.pb.go /usr/src/golang/gtfs/gtfs-realtime.pb.go
+cd /usr/src/golang/gtfs
+go test