Add script to set up redirects for new directory structure

setUpRedirects.swift

@@ -0,0 +1,64 @@
+#!/usr/bin/swift
+
+import Foundation
+
+let basicDirectories = [
+    "async",
+    "client",
+    "content",
+    "environment",
+    "errors",
+    "logging",
+    "routing",
+    "validation"
+]
+
+let advancedDirectories = [
+    "apns",
+    "commands",
+    "files",
+    "middleware",
+    "queues",
+    "server",
+    "services",
+    "sessions",
+    "testing",
+    "websockets",
+]
+
+let gettingStartedDirectories = [
+    "folder-structure",
+    "hello-world",
+    "spm",
+    "xcode",
+]
+
+let securityDirectories = [
+    "authentication",
+    "crypto",
+    "jwt",
+    "passwords",
+]
+
+for directory in basicDirectories {
+    try createRedirect(directory: directory, newDirectory: "basic")
+}
+
+for directory in advancedDirectories {
+    try createRedirect(directory: directory, newDirectory: "advanced")
+}
+
+for directory in gettingStartedDirectories {
+    try createRedirect(directory: directory, newDirectory: "getting-started")
+}
+
+for directory in securityDirectories {
+    try createRedirect(directory: directory, newDirectory: "security")
+}
+
+func createRedirect(directory: String, newDirectory: String) throws {
+    let redirectString = "<meta http-equiv=\"refresh\" content=\"0; url=/\(newDirectory)\(directory)\">"
+    let fileURL = URL(fileURLWithPath: "site/\(directory)/index.html")
+    try FileManager.default.createDirectory(atPath: "site/\(directory)", withIntermediateDirectories: true, attributes: nil)
+    try redirectString.write(to: fileURL, atomically: true, encoding: .utf8)
+}