feat: Generate package manifest for preview builds

.gitignore

@@ -31,6 +31,9 @@ codegen/protocol-test-codegen-local/smithy-build.json
 codegen/protocol-test-codegen/smithy-build.json
 SmokeTests/
 
+# Preview embedded dependencies
+/smithy-swift/
+
 # vim temporary files
 *.swp
 

AWSSDKSwiftCLI/Sources/AWSSDKSwiftCLI/Commands/AWSSDKSwiftCLI/Subcommands/GeneratePackageManifest.swift

@@ -35,14 +35,18 @@ struct GeneratePackageManifestCommand: ParsableCommand {
     @Flag(help: "If the package manifest should exclude runtime tests.")
     var excludeRuntimeTests = false
 
+    @Flag(help: "If the package manifest should be configured for a preview build.")
+    var previewBuild = false
+
     func run() throws {
         let generatePackageManifest = GeneratePackageManifest.standard(
             repoPath: repoPath,
             packageFileName: packageFileName,
             clientRuntimeVersion: clientRuntimeVersion,
             crtVersion: crtVersion,
             services: services.isEmpty ? nil : services,
-            excludeRuntimeTests: excludeRuntimeTests
+            excludeRuntimeTests: excludeRuntimeTests,
+            previewBuild: previewBuild
         )
         try generatePackageManifest.run()
     }
@@ -67,6 +71,8 @@ struct GeneratePackageManifest {
     let services: [String]?
     /// If the package manifest should exclude runtime unit tests.
     let excludeRuntimeTests: Bool
+    /// If the package manifest should be configured for a preview build.
+    let previewBuild: Bool
 
     typealias BuildPackageManifest = (
         _ clientRuntimeVersion: Version,
@@ -199,21 +205,24 @@ extension GeneratePackageManifest {
         crtVersion: Version? = nil,
         services: [String]? = nil,
         excludeAWSServices: Bool = false,
-        excludeRuntimeTests: Bool = false
+        excludeRuntimeTests: Bool = false,
+        previewBuild: Bool = false
     ) -> Self {
         GeneratePackageManifest(
             repoPath: repoPath,
             packageFileName: packageFileName,
             clientRuntimeVersion: clientRuntimeVersion,
             crtVersion: crtVersion,
             services: services,
-            excludeRuntimeTests: excludeRuntimeTests
+            excludeRuntimeTests: excludeRuntimeTests,
+            previewBuild: previewBuild
         ) { _clientRuntimeVersion, _crtVersion, _services in
             let builder = PackageManifestBuilder(
                 clientRuntimeVersion: _clientRuntimeVersion,
                 crtVersion: _crtVersion,
                 services: _services,
-                excludeRuntimeTests: excludeRuntimeTests
+                excludeRuntimeTests: excludeRuntimeTests,
+                previewBuild: previewBuild
             )
             return try builder.build()
         }

AWSSDKSwiftCLI/Sources/AWSSDKSwiftCLI/Models/PackageManifestBuilder.swift

@@ -18,6 +18,7 @@ struct PackageManifestBuilder {
     let crtVersion: Version
     let services: [Service]
     let excludeRuntimeTests: Bool
+    let previewBuild: Bool
     let prefixContents: () throws -> String
     let basePackageContents: () throws -> String
 
@@ -26,13 +27,15 @@ struct PackageManifestBuilder {
         crtVersion: Version,
         services: [Service],
         excludeRuntimeTests: Bool,
+        previewBuild: Bool,
         prefixContents: @escaping () throws -> String,
         basePackageContents: @escaping () throws -> String
     ) {
         self.clientRuntimeVersion = clientRuntimeVersion
         self.crtVersion = crtVersion
         self.services = services
         self.excludeRuntimeTests = excludeRuntimeTests
+        self.previewBuild = previewBuild
         self.prefixContents = prefixContents
         self.basePackageContents = basePackageContents
     }
@@ -41,13 +44,15 @@ struct PackageManifestBuilder {
         clientRuntimeVersion: Version,
         crtVersion: Version,
         services: [Service],
-        excludeRuntimeTests: Bool
+        excludeRuntimeTests: Bool,
+        previewBuild: Bool
     ) {
         self.init(
             clientRuntimeVersion: clientRuntimeVersion,
             crtVersion: crtVersion,
             services: services,
             excludeRuntimeTests: excludeRuntimeTests,
+            previewBuild: previewBuild,
             prefixContents: Self.contentReader(filename: "Package.Prefix"),
             basePackageContents: Self.contentReader(filename: "Package.Base")
         )
@@ -96,6 +101,9 @@ struct PackageManifestBuilder {
             // Remove the runtime tests if needed
             buildRuntimeTests(),
             "",
+            // Configure for preview or regular build
+            buildPreviewFlag(),
+            "",
             // Add the generated content that defines the list of services to include
             buildServiceTargets(),
             "",
@@ -123,6 +131,10 @@ struct PackageManifestBuilder {
         "let excludeRuntimeUnitTests = \(excludeRuntimeTests)"
     }
 
+    private func buildPreviewFlag() -> String {
+        "let isPreviewBuild = \(previewBuild)"
+    }
+
     /// Builds the list of services to include.
     /// This generates an array of strings, where the each item is a name of a service
     /// and calls the `addServiceTarget` for each item.

AWSSDKSwiftCLI/Sources/AWSSDKSwiftCLI/Resources/Package.Base.txt

@@ -69,10 +69,17 @@ private func productForService(_ service: String) -> Product {
 // MARK: Dependencies
 
 private var clientRuntimeDependency: Package.Dependency {
-    let path = "../smithy-swift"
+    let previewPath = "./smithy-swift"
+    let developmentPath = "../smithy-swift"
     let gitURL = "https://github.com/smithy-lang/smithy-swift"
     let useLocalDeps = ProcessInfo.processInfo.environment["AWS_SWIFT_SDK_USE_LOCAL_DEPS"] != nil
-    return useLocalDeps ? .package(path: path) : .package(url: gitURL, exact: clientRuntimeVersion)
+    if isPreviewBuild {
+        return .package(path: previewPath)
+    } else if useLocalDeps {
+        return .package(path: developmentPath)
+    } else {
+        return .package(url: gitURL, exact: clientRuntimeVersion)
+    }
 }
 
 private var crtDependency: Package.Dependency {

AWSSDKSwiftCLI/Tests/AWSSDKSwiftCLITests/Commands/GeneratePackageManifestTests.swift

@@ -115,6 +115,7 @@ extension GeneratePackageManifest {
         crtVersion: Version? = nil,
         services: [String]? = nil,
         excludeRuntimeTests: Bool = false,
+        previewBuild: Bool = false,
         buildPackageManifest: @escaping BuildPackageManifest = { (_,_,_) throws -> String in "" }
     ) -> GeneratePackageManifest {
         GeneratePackageManifest(
@@ -124,6 +125,7 @@ extension GeneratePackageManifest {
             crtVersion: crtVersion,
             services: services,
             excludeRuntimeTests: excludeRuntimeTests,
+            previewBuild: previewBuild,
             buildPackageManifest: buildPackageManifest
         )
     }

AWSSDKSwiftCLI/Tests/AWSSDKSwiftCLITests/Models/PackageManifestBuilderTests.swift

@@ -10,32 +10,72 @@ import XCTest
 
 class PackageManifestBuilderTests: XCTestCase {
 
-    let expected = """
-<contents of prefix>
-// MARK: - Dynamic Content
+    func testBuildWithDefaults() throws {
+        let expected = """
+        <contents of prefix>
+        // MARK: - Dynamic Content
 
-let clientRuntimeVersion: Version = "1.2.3"
-let crtVersion: Version = "4.5.6"
+        let clientRuntimeVersion: Version = "1.2.3"
+        let crtVersion: Version = "4.5.6"
 
-let excludeRuntimeUnitTests = false
+        let excludeRuntimeUnitTests = false
 
-let serviceTargets: [String] = [
-    "A",
-    "B",
-    "C",
-    "D",
-    "E",
-]
+        let isPreviewBuild = false
 
-<contents of base package>
-"""
+        let serviceTargets: [String] = [
+            "A",
+            "B",
+            "C",
+            "D",
+            "E",
+        ]
 
-    func testBuild() throws {
+        <contents of base package>
+        """
         let subject = try PackageManifestBuilder(
             clientRuntimeVersion: .init("1.2.3"),
             crtVersion: .init("4.5.6"),
             services: ["A","B","C","D","E"].map { PackageManifestBuilder.Service(name: $0) },
             excludeRuntimeTests: false,
+            previewBuild: false,
+            prefixContents: { "<contents of prefix>" },
+            basePackageContents: { "<contents of base package>" }
+        )
+        let result = try! subject.build()
+        print("")
+        print(result)
+        print("")
+        XCTAssertEqual(result, expected)
+    }
+
+    func testBuildWithPreviewBuildAndExcludedTests() throws {
+        let expected = """
+        <contents of prefix>
+        // MARK: - Dynamic Content
+
+        let clientRuntimeVersion: Version = "1.2.3"
+        let crtVersion: Version = "4.5.6"
+
+        let excludeRuntimeUnitTests = true
+
+        let isPreviewBuild = true
+
+        let serviceTargets: [String] = [
+            "A",
+            "B",
+            "C",
+            "D",
+            "E",
+        ]
+
+        <contents of base package>
+        """
+        let subject = try PackageManifestBuilder(
+            clientRuntimeVersion: .init("1.2.3"),
+            crtVersion: .init("4.5.6"),
+            services: ["A","B","C","D","E"].map { PackageManifestBuilder.Service(name: $0) },
+            excludeRuntimeTests: true,
+            previewBuild: true,
             prefixContents: { "<contents of prefix>" },
             basePackageContents: { "<contents of base package>" }
         )

Package.swift

@@ -20,6 +20,8 @@ let crtVersion: Version = "0.43.0"
 
 let excludeRuntimeUnitTests = false
 
+let isPreviewBuild = false
+
 let serviceTargets: [String] = [
     "AWSACM",
     "AWSACMPCA",
@@ -496,10 +498,17 @@ private func productForService(_ service: String) -> Product {
 // MARK: Dependencies
 
 private var clientRuntimeDependency: Package.Dependency {
-    let path = "../smithy-swift"
+    let previewPath = "./smithy-swift"
+    let developmentPath = "../smithy-swift"
     let gitURL = "https://github.com/smithy-lang/smithy-swift"
     let useLocalDeps = ProcessInfo.processInfo.environment["AWS_SWIFT_SDK_USE_LOCAL_DEPS"] != nil
-    return useLocalDeps ? .package(path: path) : .package(url: gitURL, exact: clientRuntimeVersion)
+    if isPreviewBuild {
+        return .package(path: previewPath)
+    } else if useLocalDeps {
+        return .package(path: developmentPath)
+    } else {
+        return .package(url: gitURL, exact: clientRuntimeVersion)
+    }
 }
 
 private var crtDependency: Package.Dependency {