1#!/usr/bin/env bash 2 3set -ex 4 5hide_output() { 6 set +x 7 on_err=" 8echo ERROR: An error was encountered with the build. 9cat /tmp/build.log 10exit 1 11" 12 trap '$on_err' ERR 13 bash -c "while true; do sleep 30; echo \$(date) - building ...; done" & 14 PING_LOOP_PID=$! 15 "${@}" &> /tmp/build.log 16 trap - ERR 17 kill $PING_LOOP_PID 18 rm -f /tmp/build.log 19 set -x 20} 21 22git clone https://github.com/emscripten-core/emsdk.git /emsdk-portable 23cd /emsdk-portable 24# FIXME: switch to an upstream install once 25# https://github.com/rust-lang/rust/pull/63649 lands 26hide_output ./emsdk install 1.39.12 27./emsdk activate 1.39.12 28 29# Compile and cache libc 30# shellcheck disable=SC1091 31source ./emsdk_env.sh 32echo "main(){}" > a.c 33HOME=/emsdk-portable/ emcc a.c 34rm -f a.* 35 36# Make emsdk usable by any user 37cp /root/.emscripten /emsdk-portable 38chmod a+rxw -R /emsdk-portable 39 40# node 8 is required to run wasm 41cd / 42curl --retry 5 -L https://nodejs.org/dist/v12.16.2/node-v12.16.2-linux-x64.tar.xz | \ 43 tar -xJ 44