envs.sh

#!/usr/bin/env bash
set -e -o pipefail

# If we're running from inside a container /.dockerenv should exist (not a guarantee but the best we can do)
if [[ -e "/.dockerenv" ]]; then
	INSIDE_CONTAINER="true"
else
	INSIDE_CONTAINER="false"
fi

# Set WEBPACK_SELENIUM_DEV_SERVER_HOST to the IP address for the webpack dev server
# This is different from WEBPACK_DEV_SERVER_HOST because localhost won't suffice here since the request
# is coming from a docker container, not the browser. If we can't detect this the user must set it via a script.
if [[ $INSIDE_CONTAINER == "true" ]]; then
	# Linux container
	WEBPACK_SELENIUM_DEV_SERVER_HOST="$(ip route | grep default | awk '{ print $3 }')"
else
	# Linux host
	CONTAINER_NAME="$(docker-compose ps -q watch)"
	if [[ -z $CONTAINER_NAME ]]; then
		echo "Missing container watch"
		exit 1
	fi

	CONTAINER_STATUS="$(docker inspect "$CONTAINER_NAME" -f '{{.State.Status}}')"
	if [[ $CONTAINER_STATUS != "running" ]]; then
		echo "watch container status for $CONTAINER_NAME was expected to be running but is $CONTAINER_STATUS"
		exit 1
	fi

	WEBPACK_SELENIUM_DEV_SERVER_HOST="$(docker exec "$CONTAINER_NAME" ip route | grep default | awk '{ print $3 }')"
fi

export INSIDE_CONTAINER="$INSIDE_CONTAINER"
export WEBPACK_DEV_SERVER_HOST="$WEBPACK_DEV_SERVER_HOST"
export WEBPACK_SELENIUM_DEV_SERVER_HOST="$WEBPACK_SELENIUM_DEV_SERVER_HOST"

echo "Vars set:"
echo INSIDE_CONTAINER="$INSIDE_CONTAINER"
echo WEBPACK_DEV_SERVER_HOST="$WEBPACK_DEV_SERVER_HOST"
echo WEBPACK_SELENIUM_DEV_SERVER_HOST="$WEBPACK_SELENIUM_DEV_SERVER_HOST"