spiff-arena/spiffworkflow-frontend/bin/boot_server_in_docker

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#!/usr/bin/env bash
function error_handler() {
>&2 echo "Exited with BAD EXIT CODE '${2}' in ${0} script at line: ${1}."
exit "$2"
}
trap 'error_handler ${LINENO} $?' ERR
set -o errtrace -o errexit -o nounset -o pipefail
# sort of like https://lithic.tech/blog/2020-05/react-dynamic-config, but without golang
react_configs=$(env | grep -E "^SPIFFWORKFLOW_FRONTEND_RUNTIME_CONFIG_" || echo '')
if [[ -n "$react_configs" ]]; then
index_html_file="./build/index.html"
if [[ ! -f "$index_html_file" ]]; then
>&2 echo "ERROR: Could not find '${index_html_file}'. Cannot use SPIFFWORKFLOW_FRONTEND_RUNTIME_CONFIG values without it."
exit 1
fi
if ! command -v sed >/dev/null ; then
>&2 echo "ERROR: sed command not found. Cannot use SPIFFWORKFLOW_FRONTEND_RUNTIME_CONFIG values without it."
exit 1
fi
if ! command -v perl >/dev/null ; then
>&2 echo "ERROR: perl command not found. Cannot use SPIFFWORKFLOW_FRONTEND_RUNTIME_CONFIG values without it."
exit 1
fi
for react_config in $react_configs; do
react_config_without_prefix=$(sed -E 's/^SPIFFWORKFLOW_FRONTEND_RUNTIME_CONFIG_([^=]*)=(.*)/\1=\\"\2\\"/' <<<"${react_config}")
if [[ -z "$react_config_without_prefix" ]]; then
>&2 echo "ERROR: Could not parse react config line: '${react_config}'."
exit 1
fi
escaped_react_config=$(sed -E 's|/|\\/|g' <<<"${react_config_without_prefix}")
# actually do the search and replace to add the js config to the html page
perl -pi -e "s/(window.spiffworkflowFrontendJsenv=\{\})/\1;window.spiffworkflowFrontendJsenv.${escaped_react_config}/" "$index_html_file"
if ! grep -Eq "${react_config_without_prefix}" "$index_html_file"; then
>&2 echo "ERROR: Could not find '${react_config_without_prefix}' in '${index_html_file}' after search and replace. It is likely that the assumptions in boot_server_in_docker about the contents of the html page have changed. Fix the glitch in boot_server_in_docker."
exit 1
fi
done
fi
exec ./node_modules/.bin/serve -s build -l "$PORT0"