   numberOfParameters: 1,
   helpDescription: "The access level [public|internal] to use for the generated R-file, will default to `internal`."
 )
+
+private let rswiftignore = Option(
+  trigger: .long("rswiftignore"),
+  numberOfParameters: 1,
+  helpDescription: "Path to pattern file that describes files that should be ignored."
+)
+
 private let xcodeprojOption = Option(
   trigger: .mixed("p", "xcodeproj"),
   numberOfParameters: 1,

  versionOption,
  edgeOption,
  accessLevelOption,
  xcodeprojOption,
  targetOption,
  bundleIdentifierOption,

  helpDescription: "Product module name the R-file is generated for, is none given R.swift will use the environment variable PRODUCT_MODULE_NAME"
)
private let buildProductsDirOption = Option(
  trigger: .long("buildProductsDir"),
  numberOfParameters: 1,
  helpDescription: "Build products folder that Xcode uses during build, will default to the environment variable BUILT_PRODUCTS_DIR."
)
private let developerDirOption = Option(
  trigger: .long("developerDir"),
  numberOfParameters: 1,
  helpDescription: "Developer folder that Xcode uses during build, will default to the environment variable DEVELOPER_DIR."
)
private let sourceRootOption = Option(
  trigger: .long("sourceRoot"),
  numberOfParameters: 1,
  helpDescription: "Source root folder that Xcode uses during build, will default to the environment variable SOURCE_ROOT."
)
private let sdkRootOption = Option(
  trigger: .long("sdkRoot"),
  numberOfParameters: 1,
  helpDescription: "SDK root folder that Xcode uses during build, will default to the environment variable SDKROOT."
)

