refactor(rt): make region providers public

.changes/3c7d640f-a734-4b7a-9939-1f3cb67f8cbb.json

@@ -0,0 +1,9 @@
+{
+    "id": "3c7d640f-a734-4b7a-9939-1f3cb67f8cbb",
+    "type": "feature",
+    "description": "Make region providers public and allow profile name override",
+    "issues": [
+        "awslabs/aws-sdk-kotlin#1002",
+        "awslabs/aws-sdk-kotlin#1003"
+    ]
+}

aws-runtime/aws-config/api/aws-config.api

@@ -327,6 +327,43 @@ public final class aws/sdk/kotlin/runtime/config/retries/ResolveRetryStrategyKt
 public final class aws/sdk/kotlin/runtime/config/useragent/ResolveUserAgentKt {
 }
 
+public final class aws/sdk/kotlin/runtime/region/DefaultRegionProviderChain : aws/sdk/kotlin/runtime/region/RegionProviderChain, aws/sdk/kotlin/runtime/region/RegionProvider, java/io/Closeable {
+	public fun <init> ()V
+	public fun <init> (Laws/smithy/kotlin/runtime/util/PlatformProvider;Lkotlin/Lazy;Laws/smithy/kotlin/runtime/util/LazyAsyncValue;)V
+	public synthetic fun <init> (Laws/smithy/kotlin/runtime/util/PlatformProvider;Lkotlin/Lazy;Laws/smithy/kotlin/runtime/util/LazyAsyncValue;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public fun close ()V
+}
+
+public final class aws/sdk/kotlin/runtime/region/EnvironmentRegionProvider : aws/sdk/kotlin/runtime/region/RegionProvider {
+	public fun <init> ()V
+	public fun <init> (Laws/smithy/kotlin/runtime/util/EnvironmentProvider;)V
+	public synthetic fun <init> (Laws/smithy/kotlin/runtime/util/EnvironmentProvider;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public fun getRegion (Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
+}
+
+public final class aws/sdk/kotlin/runtime/region/ImdsRegionProvider : aws/sdk/kotlin/runtime/region/RegionProvider, java/io/Closeable {
+	public fun <init> ()V
+	public fun <init> (Lkotlin/Lazy;Laws/smithy/kotlin/runtime/util/PlatformEnvironProvider;)V
+	public synthetic fun <init> (Lkotlin/Lazy;Laws/smithy/kotlin/runtime/util/PlatformEnvironProvider;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public fun close ()V
+	public fun getRegion (Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
+}
+
+public final class aws/sdk/kotlin/runtime/region/JvmSystemPropRegionProvider : aws/sdk/kotlin/runtime/region/RegionProvider {
+	public fun <init> ()V
+	public fun <init> (Laws/smithy/kotlin/runtime/util/PropertyProvider;)V
+	public synthetic fun <init> (Laws/smithy/kotlin/runtime/util/PropertyProvider;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public fun getRegion (Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
+}
+
+public final class aws/sdk/kotlin/runtime/region/ProfileRegionProvider : aws/sdk/kotlin/runtime/region/RegionProvider {
+	public fun <init> ()V
+	public fun <init> (Laws/smithy/kotlin/runtime/util/LazyAsyncValue;)V
+	public synthetic fun <init> (Laws/smithy/kotlin/runtime/util/LazyAsyncValue;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public fun <init> (Ljava/lang/String;)V
+	public fun getRegion (Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
+}
+
 public abstract interface class aws/sdk/kotlin/runtime/region/RegionProvider {
 	public abstract fun getRegion (Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
 }

aws-runtime/aws-config/common/src/aws/sdk/kotlin/runtime/region/DefaultRegionProviderChain.kt

@@ -21,7 +21,7 @@ import aws.smithy.kotlin.runtime.util.asyncLazy
  *  3. Check the AWS config files/profile for region information
  *  4. If running on EC2, check the EC2 metadata service for region
  */
-internal expect class DefaultRegionProviderChain constructor(
+public expect class DefaultRegionProviderChain constructor(
     platformProvider: PlatformProvider = PlatformProvider.System,
     imdsClient: Lazy<InstanceMetadataProvider> = lazy { ImdsClient() },
     profile: LazyAsyncValue<AwsProfile> = asyncLazy { loadAwsSharedConfig(platformProvider).activeProfile },

aws-runtime/aws-config/common/src/aws/sdk/kotlin/runtime/region/EnvironmentRegionProvider.kt

@@ -13,7 +13,7 @@ import aws.smithy.kotlin.runtime.util.PlatformProvider
  * [RegionProvider] that checks `AWS_REGION` region environment variable
  * @param environ the environment mapping to lookup keys in (defaults to the system environment)
  */
-internal class EnvironmentRegionProvider(
+public class EnvironmentRegionProvider(
     private val environ: EnvironmentProvider = PlatformProvider.System,
 ) : RegionProvider {
     override suspend fun getRegion(): String? = environ.getenv(AwsSdkSetting.AwsRegion.envVar)

aws-runtime/aws-config/common/src/aws/sdk/kotlin/runtime/region/ImdsRegionProvider.kt

@@ -22,7 +22,7 @@ private const val REGION_PATH: String = "/latest/meta-data/placement/region"
  * @param client the IMDS client to use to resolve region information with
  * @param platformProvider the [PlatformEnvironProvider] instance
  */
-internal class ImdsRegionProvider(
+public class ImdsRegionProvider(
     private val client: Lazy<InstanceMetadataProvider> = lazy { ImdsClient() },
     private val platformProvider: PlatformEnvironProvider = PlatformProvider.System,
 ) : RegionProvider, Closeable {

aws-runtime/aws-config/common/src/aws/sdk/kotlin/runtime/region/ProfileRegionProvider.kt

@@ -15,8 +15,13 @@ import aws.smithy.kotlin.runtime.util.asyncLazy
 /**
  * [RegionProvider] that sources region information from the active profile
  */
-internal class ProfileRegionProvider(
+public class ProfileRegionProvider(
     private val profile: LazyAsyncValue<AwsProfile> = asyncLazy { loadAwsSharedConfig(PlatformProvider.System).activeProfile },
 ) : RegionProvider {
+
+    /**
+     * Create a new [ProfileRegionProvider] that sources region from the given [profileName]
+     */
+    public constructor(profileName: String) : this(asyncLazy { loadAwsSharedConfig(PlatformProvider.System, profileName).activeProfile })
     override suspend fun getRegion(): String? = profile.get().region
 }

aws-runtime/aws-config/jvm/src/aws/sdk/kotlin/runtime/region/DefaultRegionProviderChainJVM.kt

@@ -11,7 +11,7 @@ import aws.smithy.kotlin.runtime.io.Closeable
 import aws.smithy.kotlin.runtime.util.LazyAsyncValue
 import aws.smithy.kotlin.runtime.util.PlatformProvider
 
-internal actual class DefaultRegionProviderChain actual constructor(
+public actual class DefaultRegionProviderChain actual constructor(
     platformProvider: PlatformProvider,
     imdsClient: Lazy<InstanceMetadataProvider>,
     profile: LazyAsyncValue<AwsProfile>,

aws-runtime/aws-config/jvm/src/aws/sdk/kotlin/runtime/region/JvmSystemPropRegionProvider.kt

@@ -6,13 +6,14 @@
 package aws.sdk.kotlin.runtime.region
 
 import aws.sdk.kotlin.runtime.config.AwsSdkSetting
+import aws.smithy.kotlin.runtime.util.PlatformProvider
 import aws.smithy.kotlin.runtime.util.PropertyProvider
 
 /**
  * [RegionProvider] that checks `aws.region` system property
  */
-internal class JvmSystemPropRegionProvider(
-    private val propertyProvider: PropertyProvider,
+public class JvmSystemPropRegionProvider(
+    private val propertyProvider: PropertyProvider = PlatformProvider.System,
 ) : RegionProvider {
     override suspend fun getRegion(): String? = propertyProvider.getProperty(AwsSdkSetting.AwsRegion.sysProp)
 }

aws-runtime/aws-config/native/src/aws/sdk/kotlin/runtime/region/DefaultRegionProviderChainNative.kt

@@ -11,7 +11,7 @@ import aws.smithy.kotlin.runtime.io.Closeable
 import aws.smithy.kotlin.runtime.util.LazyAsyncValue
 import aws.smithy.kotlin.runtime.util.PlatformProvider
 
-internal actual class DefaultRegionProviderChain actual constructor(
+public actual class DefaultRegionProviderChain actual constructor(
     platformProvider: PlatformProvider,
     imdsClient: Lazy<InstanceMetadataProvider>,
     profile: LazyAsyncValue<AwsProfile>,