runtime-id

#!/usr/bin/env bash

# This is a script called by multiple tests to find the runtime id of
# the current platform.

set -euo pipefail

function usage() {
    echo "usage: $0 [--portable]"
    echo ""
    echo "Shows the runtime id of the current OS distribution, or general OS (with the --portable flag)"
}

source /etc/os-release

declare -A archmap
archmap=(
    ["aarch64"]="arm64"
    ["amd64"]="x64"
    ["armv8l"]="arm"
    ["i686"]="x86"
    ["i386"]="x86"
    ["x86_64"]="x64"
    ["s390x"]="s390x"
    ["ppc64le"]="ppc64le"
)

arch=${archmap["$(uname -m)"]}

portable_rid=0

while [[ $# -gt 0 ]]; do
    arg=$1
    shift
    case "$arg" in
        --portable) portable_rid=1 ;;
        *) usage; exit 1 ;;
    esac
done

if [[ ${portable_rid} == 1 ]]; then
    if (ldd --version 2>&1 || true) | grep -q musl ; then
        echo "linux-musl-${arch}"
    else
        echo "linux-${arch}"
    fi
else
    case "${ID}" in
        # Remove the minor version
        alpine|ol|rhel|rocky) rid_version=${VERSION_ID%.*} ;;

        *) rid_version=${VERSION_ID} ;;
    esac

    echo "${ID}.${rid_version}-${arch}"
fi