From 0358783d5d9fd57cf4e5889f4f0c127c56171f22 Mon Sep 17 00:00:00 2001
From: Russell Cohen <rcoh@amazon.com>
Date: Thu, 14 Dec 2023 15:54:13 -0500
Subject: [PATCH] CR feedback

---
 .../amazon/smithy/rustsdk/SdkSettings.kt      | 47 +++++++++++++++++--
 .../amazon/smithy/rustsdk/TestUtil.kt         |  2 +-
 2 files changed, 45 insertions(+), 4 deletions(-)

diff --git a/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/SdkSettings.kt b/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/SdkSettings.kt
index ec5114be6b3..859df771c8d 100644
--- a/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/SdkSettings.kt
+++ b/aws/sdk-codegen/src/main/kotlin/software/amazon/smithy/rustsdk/SdkSettings.kt
@@ -10,14 +10,55 @@ import software.amazon.smithy.rust.codegen.core.smithy.CoreRustSettings
 import software.amazon.smithy.rust.codegen.core.util.orNull
 import java.nio.file.Path
 import java.nio.file.Paths
+import java.util.logging.Logger
 
 /**
  * SDK-specific settings within the Rust codegen `customizationConfig.awsSdk` object.
  */
 class SdkSettings private constructor(private val awsSdk: ObjectNode?) {
+    private fun warnOnUnusedProperties() {
+        if (awsSdk == null) {
+            return
+        }
+        val logger = Logger.getLogger("SdkSettings")
+        if (awsSdk.getMember("generateReadme").isPresent) {
+            logger.warning(
+                "`generateReadme` parameter is now ignored. Readmes are now only generated when " +
+                    "`awsSdkBuild` is set to `true`. You can use `suppressReadme` to explicitly suppress the readme in that case.",
+            )
+        }
+
+        if (awsSdk.getMember("requireEndpointResolver").isPresent) {
+            logger.warning(
+                "`requireEndpointResolver` is no a no-op and you may remove it from your configuration. " +
+                    "An endpoint resolver is only required when `awsSdkBuild` is set to true.",
+            )
+        }
+    }
     companion object {
-        fun from(coreRustSettings: CoreRustSettings): SdkSettings =
-            SdkSettings(coreRustSettings.customizationConfig?.getObjectMember("awsSdk")?.orNull())
+        fun from(coreRustSettings: CoreRustSettings): SdkSettings {
+            val settings = SdkSettings(coreRustSettings.customizationConfig?.getObjectMember("awsSdk")?.orNull())
+            if (shouldPrintWarning()) {
+                settings.warnOnUnusedProperties()
+                warningPrinted()
+            }
+            return settings
+        }
+
+        @Volatile
+        var warningPrinted = false
+
+        private fun warningPrinted() {
+            synchronized(this) {
+                this.warningPrinted = true
+            }
+        }
+
+        private fun shouldPrintWarning(): Boolean {
+            synchronized(this) {
+                return !this.warningPrinted
+            }
+        }
     }
 
     /** Path to the `sdk-default-configuration.json` config file */
@@ -38,7 +79,7 @@ class SdkSettings private constructor(private val awsSdk: ObjectNode?) {
         get() =
             awsSdk?.getStringMember("integrationTestPath")?.orNull()?.value ?: "aws/sdk/integration-tests"
 
-    /** Version number of the `aws-config` crate */
+    /** Version number of the `aws-config` crate. This is used to set the dev-dependency when generating readme's  */
     val awsConfigVersion: String?
         get() =
             awsSdk?.getStringMember("awsConfigVersion")?.orNull()?.value
diff --git a/aws/sdk-codegen/src/test/kotlin/software/amazon/smithy/rustsdk/TestUtil.kt b/aws/sdk-codegen/src/test/kotlin/software/amazon/smithy/rustsdk/TestUtil.kt
index bf1dc5aece6..231eb8e0aa5 100644
--- a/aws/sdk-codegen/src/test/kotlin/software/amazon/smithy/rustsdk/TestUtil.kt
+++ b/aws/sdk-codegen/src/test/kotlin/software/amazon/smithy/rustsdk/TestUtil.kt
@@ -58,7 +58,7 @@ fun awsIntegrationTestParams() = IntegrationTestParams(
                     .withMember("awsSdkBuild", true)
                     .withMember("suppressReadme", true)
                     .withMember("integrationTestPath", "../sdk/integration-tests")
-                    .withMember("partitionsConfigPath", "../sdk/aws-models/sdk-endpoints.json")
+                    .withMember("partitionsConfigPath", "../sdk/aws-models/sdk-partitions.json")
                     .build(),
             ).build(),
     )