Fix Android autolink plugin for libraries that are platform specific (#45223)

Summary:
Fixes https://github.com/facebook/react-native/issues/45222

## Changelog:

[ANDROID] [FIXED] - Fix autolink plugin for libraries that are platform-specific

Pull Request resolved: https://github.com/facebook/react-native/pull/45223

Test Plan: And a library that does not have Android native code such as react-native-segmented-control/segmented-control and sync gradle

Reviewed By: rshest

Differential Revision: D59221562

Pulled By: cortinico

fbshipit-source-id: 55739d63ded63e46897d0d770281f937668c1f50

packages/react-native-gradle-plugin/settings-plugin/src/main/kotlin/com/facebook/react/ReactSettingsExtension.kt

@@ -112,9 +112,15 @@ abstract class ReactSettingsExtension @Inject constructor(val settings: Settings
 
     internal fun getLibrariesToAutolink(buildFile: File): Map<String, File> {
       val model = JsonUtils.fromAutolinkingConfigJson(buildFile)
-      return model?.dependencies?.values?.associate { deps ->
-        ":${deps.nameCleansed}" to File(deps.platforms?.android?.sourceDir)
-      } ?: emptyMap()
+      return model
+          ?.dependencies
+          ?.values
+          // We handle scenarios where there are deps that are
+          // iOS-only or missing the Android configs.
+          ?.filter { it.platforms?.android?.sourceDir != null }
+          ?.associate { deps ->
+            ":${deps.nameCleansed}" to File(deps.platforms?.android?.sourceDir)
+          } ?: emptyMap()
     }
 
     internal fun computeSha256(lockFile: File) =

packages/react-native-gradle-plugin/settings-plugin/src/test/kotlin/com/facebook/react/ReactSettingsExtensionTest.kt

@@ -103,6 +103,35 @@ class ReactSettingsExtensionTest {
         map[":react-native_oss-library-example"])
   }
 
+  @Test
+  fun getLibrariesToAutolink_withiOSOnlyLibrary_returnsEmptyMap() {
+    val validJsonFile =
+        createJsonFile(
+            """
+      {
+        "reactNativeVersion": "1000.0.0",
+        "dependencies": {
+          "@react-native/oss-library-example": {
+            "root": "./node_modules/@react-native/oss-library-example",
+            "name": "@react-native/oss-library-example",
+            "platforms": {
+              "ios": {
+                "podspecPath": "./node_modules/@react-native/oss-library-example/OSSLibraryExample.podspec",
+                "version": "0.0.1",
+                "configurations": [],
+                "scriptPhases": []
+              }
+            }
+          }
+        }
+      }
+      """
+                .trimIndent())
+
+    val map = getLibrariesToAutolink(validJsonFile)
+    assertEquals(0, map.keys.size)
+  }
+
   @Test
   fun checkAndUpdateLockfiles_withNothingToCheck_returnsFalse() {
     val project = ProjectBuilder.builder().build()