Merge pull request swiftlang#1080 from nkcsgexi/utils-adopter-config

Add a utility function for collecting modules under a given config key. NFC

Author: nkcsgexi

Sources/SwiftDriver/Jobs/Planning.swift

@@ -479,6 +479,13 @@ extension Driver {
     return []
   }
 
+  @_spi(Testing) public static func getAllConfiguredModules(withKey: String, _ configs: [AdopterConfig]) -> Set<String> {
+    let allModules = configs.flatMap {
+      return $0.key == withKey ? $0.moduleNames : []
+    }
+    return Set<String>(allModules)
+  }
+
   private mutating func addVerifyJobs(emitModuleJob: Job, addJob: (Job) -> Void )
   throws {
     // Turn this flag on by default with the env var or for public frameworks.

Tests/SwiftDriverTests/SwiftDriverTests.swift

@@ -6017,6 +6017,10 @@ final class SwiftDriverTests: XCTestCase {
       XCTAssertEqual(configs.count, 1)
       XCTAssertEqual(configs[0].key, "SkipFeature1")
       XCTAssertEqual(configs[0].moduleNames, ["foo", "bar"])
+      let modules = Driver.getAllConfiguredModules(withKey: "SkipFeature1", configs)
+      XCTAssertTrue(modules.contains("foo"))
+      XCTAssertTrue(modules.contains("bar"))
+      XCTAssertTrue(Driver.getAllConfiguredModules(withKey: "SkipFeature2", configs).isEmpty)
     }
     try withTemporaryFile { file in
       try localFileSystem.writeFileContents(file.path) {