Scaffold v1.0.0

Sources/EmbedderTool/EmbedderTool.swift

@@ -0,0 +1,20 @@
+import Foundation
+
+struct EmbedderTool {
+    func run(invocation: CommandLineInvocation) throws {
+        let discoveredFiles = try FileDiscovery().discoverEmbeddableFiles(in: invocation.sourceDirectory)
+        let namespaceTree = NamespaceTreeBuilder().buildTree(from: discoveredFiles)
+        let generatedSource = try SwiftCodeGenerator().generate(from: namespaceTree)
+        try writeAtomically(generatedSource, to: invocation.outputFile)
+    }
+
+    private func writeAtomically(_ contents: String, to file: URL) throws {
+        try createParentDirectoryIfNeeded(for: file)
+        try contents.write(to: file, atomically: true, encoding: .utf8)
+    }
+
+    private func createParentDirectoryIfNeeded(for file: URL) throws {
+        let parent = file.deletingLastPathComponent()
+        try FileManager.default.createDirectory(at: parent, withIntermediateDirectories: true)
+    }
+}