Sesame-Server/Sources/App/Config.swift

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