Remove Xcode file headers in swift

import Foundation

func stripHeaders(directory: String) {
    let fileManager = FileManager.default
    do {
        let files = try fileManager.contentsOfDirectory(atPath: directory)
        for file in files {
            if file.hasSuffix(".swift") {
                let filepath = directory + "/" + file
                let fileURL = URL(fileURLWithPath: filepath)
                var inHeader = true
                var lines: [String] = []
                do {
                    let fileContent = try String(contentsOf: fileURL)
                    lines = fileContent.components(separatedBy: .newlines)
                    var newContent = ""
                    for line in lines {
                        if inHeader && line.hasPrefix("//") {
                            continue
                        } else if inHeader && !line.hasPrefix("//") {
                            inHeader = false
                        }
                        newContent += line + "\n"
                    }
                    try newContent.write(to: fileURL, atomically: true, encoding: .utf8)
                } catch {
                    print("Error while reading/writing file: \(error)")
                }
            }
        }
    } catch {
        print("Error while fetching contents of directory: \(error)")
    }
}

Example: stripHeaders(directory: "path/to/swift/source/files")