start/stop/update apps in parallel (#834)

scripts/app

@@ -80,11 +80,12 @@ else
   app_dir="${UMBREL_ROOT}/apps/${app}"
   app_data_dir="${UMBREL_ROOT}/app-data/${app}"
   if [[ "${app}" == "installed" ]]; then
-    list_installed_apps | while read app; do
+    for app in $(list_installed_apps); do
       if [[ "${app}" != "" ]]; then
-        "${0}" "${1}" "${app}" "${@:3}" || true
+        "${0}" "${1}" "${app}" "${@:3}" &
       fi
     done
+    wait
     exit
   fi
   if [[ -z "${app}" ]] || [[ ! -d "${app_dir}" ]]; then

scripts/update/01-run.sh

@@ -106,12 +106,13 @@ USER_FILE="${UMBREL_ROOT}/db/user.json"
 list_installed_apps() {
   cat "${USER_FILE}" 2> /dev/null | jq -r 'if has("installedApps") then .installedApps else [] end | join("\n")' || true
 }
-list_installed_apps | while read app; do
+for app in $(list_installed_apps); do
   if [[ "${app}" != "" ]]; then
     echo "${app}..."
-    scripts/app compose "${app}" pull
+    scripts/app compose "${app}" pull &
   fi
 done
+wait
 
 # Stop existing containers
 echo "Stopping existing containers"