Scaffold v1.0.0

Sources/EmbedderTool/FileContentReader.swift

@@ -0,0 +1,25 @@
+import Foundation
+
+struct FileContentReader {
+    func readTextContent(of file: EmbeddableFile) throws -> String {
+        do {
+            return try String(contentsOf: file.absoluteURL, encoding: .utf8)
+        } catch {
+            throw FileContentReaderError.couldNotDecodeAsUTF8(
+                path: file.absoluteURL.path,
+                underlying: error
+            )
+        }
+    }
+}
+
+enum FileContentReaderError: Error, CustomStringConvertible {
+    case couldNotDecodeAsUTF8(path: String, underlying: Error)
+
+    var description: String {
+        switch self {
+        case .couldNotDecodeAsUTF8(let path, let underlying):
+            return "failed to read \(path) as UTF-8: \(underlying.localizedDescription)"
+        }
+    }
+}