Fix docker build

Signed-off-by: Vadim Markovtsev <vadim@sourced.tech>

Dockerfile

@@ -1,21 +1,21 @@
-FROM ubuntu:16.04
+FROM ubuntu:18.04
 
 ENV GOPATH /root
+ENV PROTOBUF_VERSION 3.5.1
 
 RUN apt-get update && \
     apt-get install -y --no-install-suggests --no-install-recommends software-properties-common && \
     add-apt-repository -y ppa:gophers/archive && \
     apt-get update && \
-    apt-get install -y --no-install-suggests --no-install-recommends locales golang-1.9-go python3 python3-dev libyaml-dev libyaml-0-2 libxml2-dev libxml2 curl git make unzip g++-5 && \
-    update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-5 90 && \
-    update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-5 90 && \
-    curl -SLo protoc.zip https://github.com/google/protobuf/releases/download/v3.5.0/protoc-3.5.0-linux-x86_64.zip && \
+    apt-get install -y --no-install-suggests --no-install-recommends locales golang-1.10-go python3 python3-dev libyaml-dev libyaml-0-2 libxml2-dev libxml2 curl git make unzip g++ && \
+    curl -SLo protoc.zip https://github.com/google/protobuf/releases/download/v$PROTOBUF_VERSION/protoc-$PROTOBUF_VERSION-linux-x86_64.zip && \
     unzip -d /usr/local protoc.zip && rm protoc.zip && \
     locale-gen en_US.UTF-8 && \
-    export PATH=/usr/lib/go-1.9/bin:$PATH && \
+    export PATH=/usr/lib/go-1.10/bin:$PATH && \
     go get -v -d gopkg.in/src-d/hercules.v3/... && \
     cd /root/src/gopkg.in/src-d/hercules.v3 && \
     export CGO_CXXFLAGS=-std=c++14 && \
+    curl -L "https://storage.googleapis.com/tensorflow/libtensorflow/libtensorflow-cpu-$(go env GOOS)-x86_64-1.7.0.tar.gz" | tar -C /usr/local -xz && \
     make && \
     rm /usr/local/bin/protoc && rm /usr/local/readme.txt && rm -rf /usr/local/include/google && \
     cp /root/bin/hercules /usr/local/bin && \
@@ -28,10 +28,11 @@ echo "	$@"\n\
 echo\n\' > /browser && \
     chmod +x /browser && \
     curl https://bootstrap.pypa.io/get-pip.py | python3 && \
-    pip3 install --no-cache-dir -r /root/src/gopkg.in/src-d/hercules.v3/requirements.txt https://github.com/mind/wheels/releases/download/tf1.3-cpu/tensorflow-1.3.0-cp35-cp35m-linux_x86_64.whl && \
+    pip3 install --no-cache-dir --no-build-isolation -r /root/src/gopkg.in/src-d/hercules.v3/requirements.txt https://github.com/mind/wheels/releases/download/tf1.7-cpu/tensorflow-1.7.0-cp36-cp36m-linux_x86_64.whl && \
     rm -rf /root/* && \
-    apt-get remove -y software-properties-common golang-1.9-go python3-dev libyaml-dev libxml2-dev curl git make unzip g++-5 && \
+    apt-get remove -y software-properties-common golang-1.10-go python3-dev libyaml-dev libxml2-dev curl git make unzip g++ && \
     apt-get remove -y *-doc *-man && \
+    rm -rf /usr/share/doc /usr/share/man && \
     apt-get autoremove -y && \
     rm -rf /var/lib/apt/lists/* && \
     apt-get clean