consul/.github/scripts/set_test_package_matrix.sh

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#!/usr/bin/env bash
# Copyright (c) HashiCorp, Inc.
# SPDX-License-Identifier: BUSL-1.1
set -euo pipefail
export RUNNER_COUNT=$1
if ((RUNNER_COUNT < 1 ))
then
echo ERROR: RUNNER_COUNT must be greater than zero.
exit 1 # terminate and indicate error
fi
# set matrix var to list of unique packages containing tests
matrix="$(go list -json="ImportPath,TestGoFiles" ./... | jq --compact-output '. | select(.TestGoFiles != null) | .ImportPath' | shuf | jq --slurp --compact-output '.' | jq --argjson runnercount $RUNNER_COUNT -cM '[_nwise(length / $runnercount | ceil)]'))"
echo "matrix=${matrix}" >> "${GITHUB_OUTPUT}"