Make supported locales lazily computed providers (#1139)

Allows lazier property chaining

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platforms/gradle/better-gradle-properties/api/better-gradle-properties.api

@@ -49,6 +49,7 @@ public final class foundry/gradle/properties/PropertyResolver {
 	public final fun optionalStringValue (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
 	public static synthetic fun optionalStringValue$default (Lfoundry/gradle/properties/PropertyResolver;Ljava/lang/String;Ljava/lang/String;ILjava/lang/Object;)Ljava/lang/String;
 	public final fun providerFor (Ljava/lang/String;)Lorg/gradle/api/provider/Provider;
+	public final fun requiredStringProvider (Ljava/lang/String;)Lorg/gradle/api/provider/Provider;
 	public final fun stringValue (Ljava/lang/String;)Ljava/lang/String;
 	public final fun stringValue (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
 }

platforms/gradle/better-gradle-properties/src/main/kotlin/foundry/gradle/properties/PropertyResolver.kt

@@ -111,6 +111,15 @@ public class PropertyResolver(
       ?: error("No property for '$key' found and no default value was provided.")
   }
 
+  public fun requiredStringProvider(key: String): Provider<String> {
+    return optionalStringProvider(key)
+      .orElse(
+        providers.provider {
+          error("No property for '$key' found and no default value was provided.")
+        }
+      )
+  }
+
   public fun optionalStringValue(key: String, defaultValue: String? = null): String? {
     return providerFor(key).orNull ?: defaultValue
   }

platforms/gradle/foundry-gradle-plugin/src/main/kotlin/foundry/gradle/FoundryGradleUtil.kt

@@ -91,21 +91,21 @@ internal fun robolectricJars(gradleUserHomeDir: File, createDirsIfMissing: Boole
   }
 }
 
-public fun Project.supportedLanguages(supportedLanguages: SupportedLanguagesEnum): List<String> {
+public fun Project.supportedLanguages(
+  supportedLanguages: SupportedLanguagesEnum
+): Provider<List<String>> {
   val foundryProperties = project.foundryProperties
-  val gaLanguages = foundryProperties.supportedLanguages.split(",")
+  val gaLanguages = foundryProperties.supportedLanguages.map { it.split(",") }
 
-  val internalLanguages = foundryProperties.supportedLanguagesInternal.split(",")
+  val internalLanguages = foundryProperties.supportedLanguagesInternal.map { it.split(",") }
 
-  val betaLanguages = foundryProperties.supportedLanguagesBeta.split(",")
+  val betaLanguages = foundryProperties.supportedLanguagesBeta.map { it.split(",") }
 
   return when (supportedLanguages) {
-    SupportedLanguagesEnum.GA -> gaLanguages.toList().filter { it.isNotBlank() }
-    SupportedLanguagesEnum.INTERNAL ->
-      internalLanguages.union(gaLanguages).toList().filter { it.isNotBlank() }
-    SupportedLanguagesEnum.BETA ->
-      betaLanguages.union(gaLanguages).toList().filter { it.isNotBlank() }
-  }
+    SupportedLanguagesEnum.GA -> gaLanguages
+    SupportedLanguagesEnum.INTERNAL -> internalLanguages.zip(gaLanguages, List<String>::union)
+    SupportedLanguagesEnum.BETA -> betaLanguages.zip(gaLanguages, List<String>::union)
+  }.map { it.filter { it.isNotBlank() } }
 }
 
 public enum class SupportedLanguagesEnum {

platforms/gradle/foundry-gradle-plugin/src/main/kotlin/foundry/gradle/FoundryProperties.kt

@@ -141,16 +141,16 @@ internal constructor(
     get() = booleanProperty("foundry.config.noPlatform")
 
   /** Property corresponding to the supported languages in GA builds */
-  public val supportedLanguages: String
-    get() = stringProperty("foundry.android.supportedLanguages")
+  public val supportedLanguages: Provider<String>
+    get() = resolver.requiredStringProvider("foundry.android.supportedLanguages")
 
   /** Property corresponding to the supported languages in Internal builds */
-  public val supportedLanguagesInternal: String
-    get() = stringProperty("foundry.android.supportedLanguagesInternal")
+  public val supportedLanguagesInternal: Provider<String>
+    get() = resolver.requiredStringProvider("foundry.android.supportedLanguagesInternal")
 
   /** Property corresponding to the supported languages in Beta builds */
-  public val supportedLanguagesBeta: String
-    get() = stringProperty("foundry.android.supportedLanguagesBeta")
+  public val supportedLanguagesBeta: Provider<String>
+    get() = resolver.requiredStringProvider("foundry.android.supportedLanguagesBeta")
 
   /**
    * Property corresponding to the file path of a custom versions.json file for use with