war package dependencies in bower_components missing

[ru5t]

Desktop (please complete the following information):

• OS: Arch Linux
• JDK version: 11
• Gradle version: 5.1.1
• Vaadin Plugin version: 1.1.2

Describe the bug
Using AppLayout addon ("com.github.appreciated:app-layout-addon:2.0.8"). It uses org.webjars.bowergithub.oyeharry:app-menu:2.1.2 (from dependency graph). When war packed and deployed facing unsatisfied resource
404 : http://localhost:8080/frontend-es6/bower_components/app-menu/app-menu-icon-item.html
In war file: frontend-es6/bower_components/ contains only webcomponentsjs folder.
In basic starter projects (Maven-based) resulting war contains much more stuff.
To Reproduce
Steps to reproduce the behavior:

1. Setup project like in wiki but with additional

plugins{
...
  id 'war'
}
vaadin {
  productionMode = true
}

2. Run Gradle task vaadinCreateProject
3. Run Gradle task war
4. Explore produced war file's frontedn-es6/bower_components dir.

Expected behavior
Mentioned dir contains all necessary dependencies

Additional context
I'm fairly new to this plugin so maybe this task supposed to be done other way.

[stapel]

For me, the war-plugin does somehow inhibit the invocation of vaadinAssembleClient in productionMode (does not gets called in build anymore either).

I manually added the dependency to war, which works for me.

if (vaadin.productionMode) {
    war.dependsOn(AssembleClientDependenciesTask.NAME)
}

(plugin 1.2.0, with gradle 5.4.1)

[johndevs]

The WAR task should be made dependent on the assemble task by the WarPluginAction.groovy#L41.

The only reason I can see why this could possibly fail is if you apply the plugin to project without the WAR plugin.