Get URL to a local file with SPM (Swift Package Manager)

Question

I am trying to read .json file in my unit test and running it within Swift Package. Using Xcode 11 and Swift 5.1

let path = Bundle.main.url(forR         


        

Answer 1

The solution we have found is FileManager.

var cache: [String: URL] = [:] // Save all local files in this cache
let baseURL = urlForRestServicesTestsDir()

guard let enumerator = FileManager.default.enumerator(
    at: baseURL,
    includingPropertiesForKeys: [.nameKey],
    options: [.skipsHiddenFiles, .skipsPackageDescendants], 
    errorHandler: nil) else {
        fatalError("Could not enumerate \(baseURL)")
}

for case let url as URL in enumerator where url.isFileURL {
    cache[url.lastPathComponent] = url
}

You will need this method

static func urlForRestServicesTestsDir() -> URL {
    let currentFileURL = URL(fileURLWithPath: "\(#file)", isDirectory: false)
    return currentFileURL
        .deletingLastPathComponent()
        .deletingLastPathComponent()
}

After this you can get URL for every file:

func url(for fileName: String) -> URL? {
    return cache[fileName]
}

In case you will only want to run this code in Swift package use #if SWIFT_PACKAGE.