Download node binaries

Author: alexcrichton

ci/docker/wasm32-unknown-unknown/Dockerfile

@@ -1,18 +1,3 @@
-FROM ubuntu:18.04 as node
-
-RUN apt-get update -y && apt-get install -y \
-  g++ \
-  git \
-  make \
-  python
-
-
-# Install `node`
-RUN git clone https://github.com/nodejs/node --depth 1
-WORKDIR node
-RUN ./configure --prefix=/node-install
-RUN make -j$(nproc) install
-
 FROM ubuntu:18.04
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends \
@@ -31,8 +16,9 @@ RUN git clone --recursive https://github.com/WebAssembly/wabt
 RUN make -C wabt -j$(nproc)
 ENV PATH=$PATH:/wabt/bin
 
-COPY --from=node /node-install /
-ENV PATH=$PATH:/node-install/bin
+# Install `node`
+RUN curl https://nodejs.org/dist/v12.0.0/node-v12.0.0-linux-x64.tar.xz | tar xJf -
+ENV PATH=$PATH:/node-v12.0.0-linux-x64/bin
 
 COPY docker/wasm32-unknown-unknown/wasm-entrypoint.sh /wasm-entrypoint.sh
 ENTRYPOINT ["/wasm-entrypoint.sh"]