check

#!/bin/bash

set -eo pipefail

exec 3>&1 # make stdout available as fd 3 for the result
exec 1>&2 # redirect all output to stderr for logging

payload=$(mktemp "${TMPDIR}/resource-check.XXXXXX")
cat > "${payload}" <&0

source_project=$(jq --raw-output '.source.project // empty' < "${payload}")
if [[ -z "${source_project}" ]]; then
    >&2 echo "Source parameter 'project' is missing"
    exit 1
fi

curl --silent --fail  --show-error --location --output /dev/null \
        --url "https://releases.hashicorp.com/${source_project}/index.json" || (
    >&2 echo "Unknown hashicorp project '${source_project}'"
    exit 1
)
>&2 echo "Looking up versions of '${source_project}'"
latest_version=$(curl --silent --fail --url "https://releases.hashicorp.com/${source_project}/index.json" \
    | jq -r '.versions | keys[]' \
    | grep -v "beta" | grep -v "rc" | grep -v "alpha" | grep -v "+" \
    | sort -V | tail -n1)

>&2 echo "Latest version ${latest_version}"

jq --null-input --arg version "${latest_version}" '[ { version: $version } ]' >&3