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Rollup merge of #73885 - pietroalbini:ci-fix-wasm32, r=kennytm

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Fix wasm32 being broken due to a NodeJS version bump

Emscripten's SDK [recently bumped the version of NodeJS they shipped](https://github.com/emscripten-core/emsdk/pull/529), but our Dockerfile for the wasm32 builder hardcoded the version number. This will cause consistent CI failures once the currently cached image is rebuilt (either due to a change or due to the cache expiring).

This PR fixes the problem by finding the latest version of NodeJS in the Emscripten SDK and symlinking it to a "latest" directory, which is then added to the `PATH`.
This commit is contained in:
Manish Goregaokar 2020-07-02 00:16:38 -07:00 committed by GitHub
commit 4593e9f49f
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src/ci/docker/wasm32/Dockerfile
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@ -25,7 +25,18 @@ RUN ln `which python3` /usr/bin/python
ENV PATH=$PATH:/emsdk-portable
ENV PATH=$PATH:/emsdk-portable/upstream/emscripten/
ENV PATH=$PATH:/emsdk-portable/node/12.9.1_64bit/bin/
# Rust's build system requires NodeJS to be in the path, but the directory in
# which emsdk stores it contains the version number. This caused breakages in
# the past when emsdk bumped the node version causing the path to point to a
# missing directory.
#
# To avoid the problem this symlinks the latest NodeJs version available to
# "latest", and adds that to the path.
RUN ln -s /emsdk-portable/node/$(ls /emsdk-portable/node | sort -V | tail -n 1) \
/emsdk-portable/node/latest
ENV PATH=$PATH:/emsdk-portable/node/latest/bin/
ENV BINARYEN_ROOT=/emsdk-portable/upstream/
ENV EMSDK=/emsdk-portable
ENV EM_CONFIG=/emsdk-portable/.emscripten