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Supervise managed dev runtime restarts

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rcourtman 2026-03-25 08:47:38 +00:00
parent 547708cf8f
commit dd818164d6
3 changed files with 160 additions and 48 deletions
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55
scripts/tests/test-hot-dev-bg.sh
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@ -264,21 +264,12 @@ test_launchd_session_supervises_managed_runtime() {
}
test_start_bg_reports_browser_entrypoint() {
local test_dir fake_bin output
local test_dir output
test_dir="$(mktemp -d)"
temp_dirs+=("${test_dir}")
fake_bin="${test_dir}/bin"
mkdir -p "${fake_bin}"
cat > "${fake_bin}/python3" <<'EOF'
#!/usr/bin/env bash
printf '4242\n'
EOF
chmod +x "${fake_bin}/python3"
output="$(
HOT_DEV_BG_PATH="${HOT_DEV_BG}" \
PATH="${fake_bin}:$PATH" \
bash -lc '
source "${HOT_DEV_BG_PATH}"
PID_FILE="'"${test_dir}"'/hot-dev-bg.pid"
@ -288,15 +279,56 @@ EOF
has_unmanaged_listeners(){ return 1; }
is_running(){ return 1; }
wait_for_managed_listener(){ return 0; }
spawn_detached_supervisor(){ printf "4242\n"; }
start_bg false
'
)"
assert_contains "start reports managed runtime supervisor pid" "${output}" "Started managed runtime supervisor (pid: 4242)"
assert_contains "start reports browser entrypoint" "${output}" "Browser entrypoint: http://127.0.0.1:5173"
assert_contains "start reports managed backend" "${output}" "Managed backend: http://127.0.0.1:7655"
assert_not_contains "start no longer reports generic frontend url" "${output}" "Frontend: http://127.0.0.1:5173"
}
test_supervisor_restarts_unexpected_child_exit() {
local output
output="$(
HOT_DEV_BG_PATH="${HOT_DEV_BG}" \
bash -lc '
source "${HOT_DEV_BG_PATH}"
set +e
test_dir="$(mktemp -d)"
trap "rm -rf \"$test_dir\"" EXIT
count_file="${test_dir}/starts"
printf "0\n" > "${count_file}"
start_hot_dev_child() {
count="$(cat "${count_file}")"
count=$((count + 1))
printf "%s\n" "${count}" > "${count_file}"
if [[ "${count}" -eq 1 ]]; then
(exit 7) &
else
(sleep 30) &
fi
HOT_DEV_CHILD_PID="$!"
}
stop_hot_dev_child() {
kill -TERM "${1}" 2>/dev/null || true
}
HOT_DEV_BG_SUPERVISOR_RESTART_DELAY=0.1
run_supervised_session &
supervisor_pid=$!
sleep 0.5
kill -TERM "${supervisor_pid}"
wait "${supervisor_pid}"
printf "starts=%s\n" "$(cat "${count_file}")"
'
)"
assert_contains "supervisor reports unexpected child exit" "${output}" "Managed runtime child exited unexpectedly"
assert_contains "supervisor restarts hot-dev child after exit" "${output}" "starts=2"
}
test_launchd_wrapper_uses_managed_supervisor() {
local output
output="$(sed -n '1,80p' "${DEV_LAUNCHD_WRAPPER}")"
@ -446,7 +478,7 @@ test_hot_dev_script_advertises_foreground_escape_hatch() {
test_hot_dev_bg_script_advertises_managed_entrypoint() {
local output
output="$(sed -n '1,780p' "${ROOT_DIR}/scripts/hot-dev-bg.sh")"
output="$(cat "${ROOT_DIR}/scripts/hot-dev-bg.sh")"
assert_contains "hot-dev-bg usage points to managed runtime first" "${output}" "npm run dev # Canonical managed dev runtime"
assert_contains "hot-dev-bg still documents direct launcher start" "${output}" "./scripts/hot-dev-bg.sh start [--takeover]"
@ -703,6 +735,7 @@ main() {
test_takeover_avoids_killing_current_shell_lineage
test_launchd_session_supervises_managed_runtime
test_start_bg_reports_browser_entrypoint
test_supervisor_restarts_unexpected_child_exit
test_launchd_wrapper_uses_managed_supervisor
test_launchd_setup_advertises_managed_runtime_controls
test_root_package_exposes_managed_runtime_entrypoints