spm app builds

Plugins/IntentBuilderPlugin/IntentBuilderPlugin.swift

@@ -0,0 +1,34 @@
+// Copyright 2022 The Brave Authors. All rights reserved.
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+import PackagePlugin
+import Foundation
+
+@main
+struct IntentBuilderPlugin: BuildToolPlugin {
+	func createBuildCommands(context: PluginContext, target: Target) async throws -> [Command] {
+		let outputDirectory = context.pluginWorkDirectory.appending("GeneratedSources")
+		guard let target = target as? SourceModuleTarget else {
+			Diagnostics.error("Attempted to use `IntentBuilderPlugin` on an unsupported module target")
+			return []
+		}
+		return target.sourceFiles(withSuffix: "intentdefinition")
+			.map { file in
+					.prebuildCommand(
+						displayName: "Generate intents sources",
+						executable: Path("/usr/bin/xcrun"),
+						arguments: [
+							"intentbuilderc", "generate",
+							"-input", file.path.string,
+							"-output", outputDirectory,
+							"-language", "Swift",
+							"-swiftVersion", "5.6",
+							"-classPrefix", ""
+						],
+						outputFilesDirectory: outputDirectory
+					)
+			}
+	}
+}