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#!/bin/false
# shellcheck shell=bash
# This file is intended to be sourced with `. shared.sh` or
# `source shared.sh`, hence the invalid shebang and not being
# marked as an executable file in git.
function hide_output {
{ set +x; } 2>/dev/null
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 $PING_LOOP_PID
set -x
}
# See https://unix.stackexchange.com/questions/82598
# Duplicated in src/ci/shared.sh
function retry {
echo "Attempting with retry:" "$@"
local n=1
local max=5
while true; do
"$@" && break || {
if [[ $n -lt $max ]]; then
sleep $n # don't retry immediately
((n++))
echo "Command failed. Attempt $n/$max:"
else
echo "The command has failed after $n attempts."
return 1
fi
}
done
}
download_tar_and_extract_into_dir() {
local url="$1"
local sum="$2"
local dir="$3"
local file=$(mktemp -u)
while :; do
if [[ -f "$file" ]]; then
if ! h="$(sha256sum "$file" | awk '{ print $1 }')"; then
printf 'ERROR: reading hash\n' >&2
exit 1
fi
if [[ "$h" == "$sum" ]]; then
break
fi
printf 'WARNING: hash mismatch: %s != expected %s\n' "$h" "$sum" >&2
rm -f "$file"
fi
printf 'Downloading: %s\n' "$url"
if ! curl -f -L -o "$file" "$url"; then
rm -f "$file"
sleep 1
fi
done
mkdir -p "$dir"
cd "$dir"
tar -xf "$file"
rm -f "$file"
}
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