Adding a custom resource directory to SBT's default unmanagedResourceDirectories - scala

Question

I have two SBT projects as outlined below.
├── Project 1
│ │
│ └── src
│ └── main
│ ├── scala
│ │ └── com
│ │ └── xyz
│ │ └── <*.scala>
│ └── resources
│ └── <Typesafe & Log4J config files>
│
│
└── Project 2
│
├── src
│ └── main
│ ├── scala
│ │ └── com
│ │ └── xyz
│ │ └── <*.scala>
│ └── resources
│ └── <Typesafe & Log4J config files>
│
├── resources
│ └── <JS, HTML, Image files etc.>
├── other-dir-1
│
├── other-dir-2
│
└── other-dir-3
Compiling Project 1 (actually running SBT exportedProducts task) produces the following directory structure. unmanagedResourceDirectories points to Project1/src/main/resources. I believe this is the default resourceDirectory (as mentioned in Customizing Paths). In other words, files in default resource directory are automatically added by exportedProducts
├── Project 1
└── target
└── scala-2.10
└── classes
├── com
│ └── xyz
│ └── <*.class>
└── <Typesafe & Log4J config files>
For Project 2, I want the following directory structure to be produced by exportedProducts.
├── Project 2
└── target
└── scala-2.10
└── classes
├── com
│ └── xyz
│ └── <*.class>
├── <Typesafe & Log4J config files>
│
└── resources
└── <JS, HTML, Image files etc.>
To do this I added the following to SBT build file in the appropriate project definition.
unmanagedResourceDirectories in Compile += baseDirectory.value
excludeFilter in unmanagedResources := HiddenFileFilter || "other-dir-*"
includeFilter in unmanagedResources :=
new SimpleFileFilter(_.getCanonicalPath.startsWith((baseDirectory.value / "resources").getCanonicalPath))
This correctly includes resources directory but doesn't include the files from Project2\src\main\resources. The target directory looks like the
├── Project 2
└── target
└── scala-2.10
└── classes
├── com
│ └── xyz
│ └── <*.class>
└── resources
└── <JS, HTML, Image files etc.>
Adding a custom resource directory in some way masks the content of the default resource directory. I tried something along the lines of what was mentioned in this SO post but wasn't successful.
The other thing that I tried was to set unmanagedResourceDirectories in Compile += baseDirectory.value / "resources" and remove both includeFilter and excludeFilter. This adds the files from Project2\src\main\resources correctly but adds the files & directories from Project2\resources directly to Project2\target\scala-2.10\classes. The target directory looks like the following
├── Project 2
└── target
└── scala-2.10
└── classes
├── com
│ └── xyz
│ └── <*.class>
├── <Typesafe & Log4J config files>
│
└── <JS, HTML, Image files etc.>