WIP : migrate archive plugin to new lambda-build

Sources/AWSLambdaPluginHelper/lambda-init/Initializer.swift

@@ -0,0 +1,97 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the SwiftAWSLambdaRuntime open source project
+//
+// Copyright (c) 2024 Apple Inc. and the SwiftAWSLambdaRuntime project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of SwiftAWSLambdaRuntime project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
+import Foundation
+#endif
+
+struct Initializer {
+    
+    private let destFileName = "Sources/main.swift"
+
+    func initialize(arguments: [String]) async throws {
+        
+        let configuration = try InitializerConfiguration(arguments: arguments)
+
+        if configuration.help {
+            self.displayHelpMessage()
+            return
+        }
+
+        let destFileURL = configuration.destinationDir.appendingPathComponent(destFileName)
+        do {
+            try functionWithUrlTemplate.write(to: destFileURL, atomically: true, encoding: .utf8)
+
+            if configuration.verboseLogging {
+                print("File created at: \(destFileURL)")
+            }
+
+            print("✅ Lambda function written to \(destFileName)")
+            print("📦 You can now package with: 'swift package archive'")
+        } catch {
+            print("🛑Failed to create the Lambda function file: \(error)")
+        }
+    }
+
+
+    private func displayHelpMessage() {
+        print(
+            """
+            OVERVIEW: A SwiftPM plugin to scaffold a HelloWorld Lambda function.
+
+            USAGE: swift package lambda-init
+                                 [--help] [--verbose]
+                                 [--allow-writing-to-package-directory]
+
+            OPTIONS:
+            --allow-writing-to-package-directory  Don't ask for permissions to write files.
+            --verbose                             Produce verbose output for debugging.
+            --help                                Show help information.
+            """
+        )
+    }
+}
+
+private struct InitializerConfiguration: CustomStringConvertible {
+    public let help: Bool
+    public let verboseLogging: Bool
+    public let destinationDir: URL
+
+    public init(arguments: [String]) throws {
+        var argumentExtractor = ArgumentExtractor(arguments)
+        let verboseArgument = argumentExtractor.extractFlag(named: "verbose") > 0
+        let helpArgument = argumentExtractor.extractFlag(named: "help") > 0
+        let destDirArgument = argumentExtractor.extractOption(named: "dest-dir")
+
+        // help required ?
+        self.help = helpArgument
+
+        // verbose logging required ?
+        self.verboseLogging = verboseArgument
+        
+        // dest dir
+        self.destinationDir = URL(fileURLWithPath: destDirArgument[0])
+    }
+
+    var description: String {
+        """
+        {
+          verboseLogging: \(self.verboseLogging)
+          destinationDir: \(self.destinationDir)
+        }
+        """
+    }
+}

Sources/AWSLambdaPluginHelper/lambda-init/Template.swift

@@ -0,0 +1,33 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the SwiftAWSLambdaRuntime open source project
+//
+// Copyright (c) 2022 Apple Inc. and the SwiftAWSLambdaRuntime project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of SwiftAWSLambdaRuntime project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+let functionWithUrlTemplate = #"""
+    import AWSLambdaRuntime
+    import AWSLambdaEvents
+
+    // in this example we receive a FunctionURLRequest and we return a FunctionURLResponse
+    // https://docs.aws.amazon.com/lambda/latest/dg/urls-invocation.html#urls-payloads
+
+    let runtime = LambdaRuntime {
+            (event: FunctionURLRequest, context: LambdaContext) -> FunctionURLResponse in
+            
+            guard let name = event.queryStringParameters?["name"] else {
+                return FunctionURLResponse(statusCode: .badRequest)
+            }
+
+    		return FunctionURLResponse(statusCode: .ok, body: #"{ "message" : "Hello \#\#(name)" } "#)
+    }
+
+    try await runtime.run()
+    """#