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#!/usr/bin/env bash
# Copyright 2017 The Rust Project Developers. See the COPYRIGHT
# file at the top-level directory of this distribution and at
# http://rust-lang.org/COPYRIGHT.
#
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
# option. This file may not be copied, modified, or distributed
# except according to those terms.
set -ex
hide_output() {
set +x
on_err="
echo ERROR: An error was encountered with the build.
cat /tmp/build.log
exit 1
"
trap '$on_err' ERR
bash -c "while true; do sleep 30; echo \$(date) - building ...; done" &
PING_LOOP_PID=$!
"${@}" &> /tmp/build.log
trap - ERR
kill $PING_LOOP_PID
rm -f /tmp/build.log
set -x
}
git clone https://github.com/emscripten-core/emsdk.git /emsdk-portable
cd /emsdk-portable
# TODO: switch to an upstream install once
# https://github.com/rust-lang/rust/pull/63649 lands
hide_output ./emsdk install 1.38.42
./emsdk activate 1.38.42
# Compile and cache libc
# shellcheck disable=SC1091
source ./emsdk_env.sh
echo "main(){}" > a.c
HOME=/emsdk-portable/ emcc a.c
rm -f a.*
# Make emsdk usable by any user
cp /root/.emscripten /emsdk-portable
chmod a+rxw -R /emsdk-portable
# node 8 is required to run wasm
cd /
curl --retry 5 -L https://nodejs.org/dist/v12.3.1/node-v12.3.1-linux-x64.tar.xz | \
tar -xJ
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