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frontend/script/develop_and_serve
T
Aidan TimsonandGitHub 3c6b70ded8 Prevent concurrent managed frontend workflows (#53396)
* Shared build and runner for all build,dev,test flows

* Harden managed process lifecycle

* Make build workflows deterministic

* Test build management contracts

* Queue shared generated output work

* Isolate generated inputs for dev servers

* Preserve dev server child failures

* Make generated lock test deterministic

* Keep test navigator configurable

* Block concurrent frontend workflows

* Simplify workflow lock ownership

* Focus workflow locking on managed commands

* Trim workflow lock unit tests

* Consolidate dev server lifecycle handlers
2026-07-31 09:30:49 +03:00

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#!/bin/sh
#
# This script can be used to develop and test the frontend without having to
# link the build in a running core instance through the frontend/development_repo setting.
#
# WARNING:
# If you have an active login session in the frontend. The core that was used
# as a backend during the time of the login remains used until you logout again.
# So if you reuse the url hosting the frontend, you will need to logout before
# it will actually start using the core backend configured by this script.
#
# If you run this script without parameters, the frontend will be accessible under http://localhost:8124.
# And it will use the core instance running under http://localhost:8123 as a backend.
# Note that from a devcontainer, the frontend will be accessible under port 8124 on the host container.
# Inside the devcontainer it will be accessible under port 8123 instead.
# The core instance endpoint remains the same in both cases, as this is resolved from the browser.
#
# You can change the core instance the frontend connects to by passing the -c option.
# For example: script/develop_and_serve -c https://myhost.duckdns.org:8123
# This will also work for existing production core instances.
# It does not need to be a development version hosted locally.
#
# You can change the port the frontend is served on by passing the -p option.
# For example: script/develop_and_serve -p 8654
# Note that if you are running from a devcontainer, you will need to setup
# port forwarding as well if you want to access it from the container host.
# Stop on errors
set -e
cd "$(dirname "$0")/.."
# parse input parameters
if [ -n "$DEVCONTAINER" ]; then
frontendPort=8123
else
frontendPort=8124
fi
coreUrl=http://localhost:8123
while getopts p:c:h flag
do
case "${flag}" in
p) frontendPort=${OPTARG};;
c) coreUrl="${OPTARG}";;
h) echo Documentation can be found inside "$0" && exit 0;;
*) echo Documentation can be found inside "$0" && exit 1;;
esac
done
# display used settings
if [ -n "$DEVCONTAINER" ]; then
echo Frontend is available inside container as http://localhost:${frontendPort}
if [ 8123 -eq $frontendPort ]; then
echo Frontend is available on container host as http://localhost:8124
fi
else
echo Frontend is hosted on http://localhost:${frontendPort}
fi
echo Core is used from ${coreUrl}
# build the frontend so it connects to the passed core
HASS_URL="$coreUrl" ./node_modules/.bin/gulp develop-app &
develop_pid=$!
# serve the frontend
./node_modules/.bin/serve -p $frontendPort --single --no-port-switching --config ../script/serve-config.json ./hass_frontend &
serve_pid=$!
stop_children() {
trap - EXIT INT TERM HUP
kill "$develop_pid" "$serve_pid" 2>/dev/null || true
wait "$develop_pid" 2>/dev/null || true
wait "$serve_pid" 2>/dev/null || true
}
trap stop_children EXIT
trap 'stop_children; exit 130' INT
trap 'stop_children; exit 143' TERM
trap 'stop_children; exit 129' HUP
while kill -0 "$develop_pid" 2>/dev/null && kill -0 "$serve_pid" 2>/dev/null; do
sleep 1
done
develop_status=
serve_status=
if ! kill -0 "$develop_pid" 2>/dev/null; then
if wait "$develop_pid"; then develop_status=0; else develop_status=$?; fi
fi
if ! kill -0 "$serve_pid" 2>/dev/null; then
if wait "$serve_pid"; then serve_status=0; else serve_status=$?; fi
fi
if [ -n "$develop_status" ] && [ "$develop_status" -ne 0 ]; then
status=$develop_status
elif [ -n "$serve_status" ]; then
status=$serve_status
else
status=$develop_status
fi
exit "$status"