60 lines
1.7 KiB
Swift
60 lines
1.7 KiB
Swift
import Foundation
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struct Config {
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/// The port where the server runs
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let port: Int
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/// The name of the file in the `Resources` folder containing the device authentication token
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let keyFileName: String
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/// The seconds to wait for a response from the device
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let deviceTimeout: Int64
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/// The authentication tokens to use for monitoring of the service
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let authenticationTokens: Set<String>
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/// The path to the folder where the metric logs are stored
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///
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/// If no path is provided, then a folder `logs` in the resources directory is created
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/// If the path is relative, then it is assumed relative to the resources directory
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let logPath: String?
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func logURL(possiblyRelativeTo resourcesDirectory: URL) -> URL {
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guard let logPath else {
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return resourcesDirectory.appendingPathComponent("logs")
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}
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guard !logPath.hasPrefix("/") else {
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return .init(fileURLWithPath: logPath)
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}
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return resourcesDirectory.appendingPathComponent(logPath)
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}
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}
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extension Config: Codable {
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}
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extension Config {
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init(loadFrom url: URL) throws {
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guard FileManager.default.fileExists(atPath: url.path) else {
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log("No configuration file found at \(url.path)")
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fatalError("No configuration file found")
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}
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let data: Data
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do {
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data = try Data(contentsOf: url)
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} catch {
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log("Failed to read config data: \(error)")
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throw error
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}
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do {
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self = try JSONDecoder().decode(Config.self, from: data)
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} catch {
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log("Failed to decode config data: \(error)")
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throw error
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}
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}
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}
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