Fix re-export of SdkError

CHANGELOG.next.toml

@@ -34,3 +34,15 @@ message = "Fix requests to S3 with `no_credentials` set."
 references = ["smithy-rs#2907", "aws-sdk-rust#864"]
 meta = { "breaking" = false, "tada" = false, "bug" = true }
 author = "jdisanti"
+
+[[aws-sdk-rust]]
+message = "Fixed re-exported `SdkError` type. The previous release had the wrong type for `SdkError`, which caused projects to fail to compile when upgrading."
+references = ["smithy-rs#2931", "aws-sdk-rust#875"]
+meta = { "breaking" = true, "tada" = false, "bug" = true }
+author = "jdisanti"
+
+[[smithy-rs]]
+message = "Fixed re-exported `SdkError` type. The previous release had the wrong type for `SdkError` when generating code for orchestrator mode, which caused projects to fail to compile when upgrading."
+references = ["smithy-rs#2931", "aws-sdk-rust#875"]
+meta = { "breaking" = true, "tada" = false, "bug" = true, "target" = "client" }
+author = "jdisanti"

aws/sdk/build.gradle.kts

@@ -3,7 +3,6 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-import aws.sdk.AwsExamplesLayout
 import aws.sdk.AwsServices
 import aws.sdk.Membership
 import aws.sdk.discoverServices
@@ -246,22 +245,12 @@ tasks.register<ExecRustBuildTool>("fixExampleManifests") {
 
     toolPath = sdkVersionerToolPath
     binaryName = "sdk-versioner"
-    arguments = when (AwsExamplesLayout.detect(project)) {
-        AwsExamplesLayout.Flat -> listOf(
-            "use-path-and-version-dependencies",
-            "--isolate-crates",
-            "--sdk-path", "../../sdk",
-            "--versions-toml", outputDir.resolve("versions.toml").absolutePath,
-            outputDir.resolve("examples").absolutePath,
-        )
-        AwsExamplesLayout.Workspaces -> listOf(
-            "use-path-and-version-dependencies",
-            "--isolate-crates",
-            "--sdk-path", sdkOutputDir.absolutePath,
-            "--versions-toml", outputDir.resolve("versions.toml").absolutePath,
-            outputDir.resolve("examples").absolutePath,
-        )
-    }
+    arguments = listOf(
+        "use-path-and-version-dependencies",
+        "--sdk-path", sdkOutputDir.absolutePath,
+        "--versions-toml", outputDir.resolve("versions.toml").absolutePath,
+        outputDir.resolve("examples").absolutePath,
+    )
 
     outputs.dir(outputDir)
     dependsOn("relocateExamples", "generateVersionManifest")

buildSrc/src/main/kotlin/aws/sdk/ServiceLoader.kt

@@ -19,38 +19,6 @@ data class RootTest(
     val manifestName: String,
 )
 
-// TODO(https://github.com/awslabs/smithy-rs/issues/2810): We can remove the `Flat` layout after the switch
-// to `Workspaces` has been released. This can be checked by looking at the `examples/` directory in aws-sdk-rust's
-// main branch.
-//
-// The `Flat` layout is retained for backwards compatibility so that the next release process can succeed.
-enum class AwsExamplesLayout {
-    /**
-     * Directory layout for examples used prior to June 26, 2023,
-     * where each example was in the `rust_dev_preview/` root directory and
-     * was considered to be its own workspace.
-     *
-     * This layout had issues with CI in terms of time to compile and disk space required
-     * since the dependencies would get recompiled for every example.
-     */
-    Flat,
-
-    /**
-     * Current directory layout where there are a small number of workspaces
-     * rooted in `rust_dev_preview/`.
-     */
-    Workspaces,
-    ;
-
-    companion object {
-        fun detect(project: Project): AwsExamplesLayout = if (project.projectDir.resolve("examples/Cargo.toml").exists()) {
-            AwsExamplesLayout.Flat
-        } else {
-            AwsExamplesLayout.Workspaces
-        }
-    }
-}
-
 class AwsServices(
     private val project: Project,
     services: List<AwsService>,
@@ -77,15 +45,9 @@ class AwsServices(
 
     val examples: List<String> by lazy {
         val examplesRoot = project.projectDir.resolve("examples")
-        if (AwsExamplesLayout.detect(project) == AwsExamplesLayout.Flat) {
-            examplesRoot.listFiles { file -> !file.name.startsWith(".") }.orEmpty().toList()
-                .filter { file -> manifestCompatibleWithGeneratedServices(file) }
-                .map { "examples/${it.name}" }
-        } else {
-            examplesRoot.listFiles { file ->
-                !file.name.startsWith(".") && file.isDirectory() && file.resolve("Cargo.toml").exists()
-            }.orEmpty().toList().map { "examples/${it.name}" }
-        }
+        examplesRoot.listFiles { file ->
+            !file.name.startsWith(".") && file.isDirectory() && file.resolve("Cargo.toml").exists()
+        }.orEmpty().toList().map { "examples/${it.name}" }
     }
 
     /**

codegen-client/src/main/kotlin/software/amazon/smithy/rust/codegen/client/smithy/customize/RequiredCustomizations.kt

@@ -24,10 +24,12 @@ import software.amazon.smithy.rust.codegen.client.smithy.generators.OperationCus
 import software.amazon.smithy.rust.codegen.client.smithy.generators.ServiceRuntimePluginCustomization
 import software.amazon.smithy.rust.codegen.client.smithy.generators.config.ConfigCustomization
 import software.amazon.smithy.rust.codegen.core.rustlang.Feature
+import software.amazon.smithy.rust.codegen.core.rustlang.rust
+import software.amazon.smithy.rust.codegen.core.rustlang.rustTemplate
+import software.amazon.smithy.rust.codegen.core.smithy.RuntimeType
 import software.amazon.smithy.rust.codegen.core.smithy.RustCrate
 import software.amazon.smithy.rust.codegen.core.smithy.customizations.AllowLintsCustomization
 import software.amazon.smithy.rust.codegen.core.smithy.customizations.CrateVersionCustomization
-import software.amazon.smithy.rust.codegen.core.smithy.customizations.pubUseSmithyErrorTypes
 import software.amazon.smithy.rust.codegen.core.smithy.customizations.pubUseSmithyPrimitives
 import software.amazon.smithy.rust.codegen.core.smithy.generators.LibRsCustomization
 import software.amazon.smithy.rust.codegen.core.util.letIf
@@ -79,6 +81,8 @@ class RequiredCustomizations : ClientCodegenDecorator {
         baseCustomizations + AllowLintsCustomization()
 
     override fun extras(codegenContext: ClientCodegenContext, rustCrate: RustCrate) {
+        val rc = codegenContext.runtimeConfig
+
         // Add rt-tokio feature for `ByteStream::from_path`
         rustCrate.mergeFeature(Feature("rt-tokio", true, listOf("aws-smithy-http/rt-tokio")))
 
@@ -91,7 +95,29 @@ class RequiredCustomizations : ClientCodegenDecorator {
             pubUseSmithyPrimitives(codegenContext, codegenContext.model)(this)
         }
         rustCrate.withModule(ClientRustModule.Error) {
-            pubUseSmithyErrorTypes(codegenContext)(this)
+            // TODO(enableNewSmithyRuntimeCleanup): Change SdkError to a `pub use` after changing the generic's default
+            rust("/// Error type returned by the client.")
+            if (codegenContext.smithyRuntimeMode.generateOrchestrator) {
+                rustTemplate(
+                    "pub type SdkError<E> = #{SdkError}<E, #{R}>;",
+                    "SdkError" to RuntimeType.sdkError(rc),
+                    "R" to RuntimeType.smithyRuntimeApi(rc).resolve("client::orchestrator::HttpResponse"),
+                )
+            } else {
+                rustTemplate(
+                    "pub type SdkError<E> = #{SdkError}<E, #{R}>;",
+                    "SdkError" to RuntimeType.sdkError(rc),
+                    "R" to RuntimeType.smithyHttp(rc).resolve("operation::Response"),
+                )
+            }
+            rustTemplate(
+                """
+                pub use #{DisplayErrorContext};
+                pub use #{ProvideErrorMetadata};
+                """,
+                "DisplayErrorContext" to RuntimeType.smithyTypes(rc).resolve("error::display::DisplayErrorContext"),
+                "ProvideErrorMetadata" to RuntimeType.smithyTypes(rc).resolve("error::metadata::ProvideErrorMetadata"),
+            )
         }
 
         ClientRustModule.Meta.also { metaModule ->

codegen-core/src/main/kotlin/software/amazon/smithy/rust/codegen/core/smithy/customizations/SmithyTypesPubUseExtra.kt

@@ -9,20 +9,12 @@ import software.amazon.smithy.model.Model
 import software.amazon.smithy.model.shapes.Shape
 import software.amazon.smithy.model.shapes.StructureShape
 import software.amazon.smithy.rust.codegen.core.rustlang.Writable
-import software.amazon.smithy.rust.codegen.core.rustlang.rust
+import software.amazon.smithy.rust.codegen.core.rustlang.rustTemplate
 import software.amazon.smithy.rust.codegen.core.rustlang.writable
 import software.amazon.smithy.rust.codegen.core.smithy.CodegenContext
-import software.amazon.smithy.rust.codegen.core.smithy.CodegenTarget
 import software.amazon.smithy.rust.codegen.core.smithy.RuntimeType
 import software.amazon.smithy.rust.codegen.core.util.hasEventStreamMember
 import software.amazon.smithy.rust.codegen.core.util.hasStreamingMember
-import software.amazon.smithy.rust.codegen.core.util.letIf
-
-private data class PubUseType(
-    val type: RuntimeType,
-    val shouldExport: (Model) -> Boolean,
-    val alias: String? = null,
-)
 
 /** Returns true if the model has normal streaming operations (excluding event streams) */
 private fun hasStreamingOperations(model: Model): Boolean {
@@ -48,62 +40,34 @@ private fun hasBlobs(model: Model): Boolean = structUnionMembersMatchPredicate(m
 /** Returns true if the model uses any timestamp shapes */
 private fun hasDateTimes(model: Model): Boolean = structUnionMembersMatchPredicate(model, Shape::isTimestampShape)
 
-/** Returns a list of types that should be re-exported for the given model */
-internal fun pubUseTypes(codegenContext: CodegenContext, model: Model): List<RuntimeType> =
-    pubUseTypesThatShouldBeExported(codegenContext, model).map { it.type }
-
-private fun pubUseTypesThatShouldBeExported(codegenContext: CodegenContext, model: Model): List<PubUseType> {
-    val runtimeConfig = codegenContext.runtimeConfig
-    return (
-        listOf(
-            PubUseType(RuntimeType.blob(runtimeConfig), ::hasBlobs),
-            PubUseType(RuntimeType.dateTime(runtimeConfig), ::hasDateTimes),
-            PubUseType(RuntimeType.format(runtimeConfig), ::hasDateTimes, "DateTimeFormat"),
-        ) + RuntimeType.smithyHttp(runtimeConfig).let { http ->
-            listOf(
-                PubUseType(http.resolve("byte_stream::ByteStream"), ::hasStreamingOperations),
-                PubUseType(http.resolve("byte_stream::AggregatedBytes"), ::hasStreamingOperations),
-                PubUseType(http.resolve("byte_stream::error::Error"), ::hasStreamingOperations, "ByteStreamError"),
-                PubUseType(http.resolve("body::SdkBody"), ::hasStreamingOperations),
-            )
-        }
-        ).filter { pubUseType -> pubUseType.shouldExport(model) }
-}
-
 /** Adds re-export statements for Smithy primitives */
 fun pubUseSmithyPrimitives(codegenContext: CodegenContext, model: Model): Writable = writable {
-    val types = pubUseTypesThatShouldBeExported(codegenContext, model)
-    if (types.isNotEmpty()) {
-        types.forEach {
-            val useStatement = if (it.alias == null) {
-                "pub use #T;"
-            } else {
-                "pub use #T as ${it.alias};"
-            }
-            rust(useStatement, it.type)
-        }
+    val rc = codegenContext.runtimeConfig
+    if (hasBlobs(model)) {
+        rustTemplate("pub use #{Blob};", "Blob" to RuntimeType.blob(rc))
     }
-}
-
-/** Adds re-export statements for error types */
-fun pubUseSmithyErrorTypes(codegenContext: CodegenContext): Writable = writable {
-    val runtimeConfig = codegenContext.runtimeConfig
-    val reexports = listOf(
-        listOf(
-            RuntimeType.smithyHttp(runtimeConfig).let { http ->
-                PubUseType(http.resolve("result::SdkError"), { _ -> true })
-            },
-        ),
-        RuntimeType.smithyTypes(runtimeConfig).let { types ->
-            listOf(PubUseType(types.resolve("error::display::DisplayErrorContext"), { _ -> true }))
-                // Only re-export `ProvideErrorMetadata` for clients
-                .letIf(codegenContext.target == CodegenTarget.CLIENT) { list ->
-                    list +
-                        listOf(PubUseType(types.resolve("error::metadata::ProvideErrorMetadata"), { _ -> true }))
-                }
-        },
-    ).flatten()
-    reexports.forEach { reexport ->
-        rust("pub use #T;", reexport.type)
+    if (hasDateTimes(model)) {
+        rustTemplate(
+            """
+            pub use #{DateTime};
+            pub use #{Format} as DateTimeFormat;
+            """,
+            "DateTime" to RuntimeType.dateTime(rc),
+            "Format" to RuntimeType.format(rc),
+        )
+    }
+    if (hasStreamingOperations(model)) {
+        rustTemplate(
+            """
+            pub use #{ByteStream};
+            pub use #{AggregatedBytes};
+            pub use #{Error} as ByteStreamError;
+            pub use #{SdkBody};
+            """,
+            "ByteStream" to RuntimeType.smithyHttp(rc).resolve("byte_stream::ByteStream"),
+            "AggregatedBytes" to RuntimeType.smithyHttp(rc).resolve("byte_stream::AggregatedBytes"),
+            "Error" to RuntimeType.smithyHttp(rc).resolve("byte_stream::error::Error"),
+            "SdkBody" to RuntimeType.smithyHttp(rc).resolve("body::SdkBody"),
+        )
     }
 }