General App Configuration File

Config.swift

import Foundation
import Logging

enum ConfigKey: String {
    case bundleId = "BUNDLE_ID"
    case appName = "APP_NAME"
    case baseUrl = "BASE_URL"
    case apiSecret = "API_SECRET"
    case appVersion = "CFBundleShortVersionString"
    case appBuild = "CFBundleVersion"
}

class Config {

    // MARK: - Plist

    private static let infoDictionary: [String: Any] = {
        guard let dict = Bundle.main.infoDictionary else {
            return [:]
        }
        return dict
    }()

    // MARK: - Plist values
  
    var bundleId: String {
        value(for: .bundleId)
    }

    var appName: String {
        value(for: .appName)
    }

    var baseUrl: String {
        value(for: .baseUrl)
    }

    var apiSecret: String {
        value(for: .apiSecret)
    }
  
    var appVersion: String {
        value(for: .appVersion)
    }

    var appBuild: String {
        value(for: .appBuild)
    }

    private func value(for key: ConfigKey) -> String {
        guard let value = Config.infoDictionary[key.rawValue] as? String else {
            print("💥 [\(key.rawValue)] is not set in plist file.")
            return ""
        }
        return value
    }
}

ExampleEnvironment.xcconfig

// MARK: - Genaral App Configuration

BUNDLE_ID = <#BUNDLE_ID#>

APP_NAME = <#APP_NAME#>

// MARK: - API Connection

BASE_URL = <#BASE_URL#>

API_SECRET = <#API_SECRET#>

Info.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>BUNDLE_ID</key>
  <string>$(BUNDLE_ID)</string>
  <key>APP_NAME</key>
  <string>$(APP_NAME)</string>
  <key>BASE_URL</key>
  <string>$(BASE_URL)</string>
  <key>API_SECRET</key>
  <string>$(API_SECRET)</string>
</dict>
</plist>

Package.swift

.package(url: "https://github.com/apple/swift-log.git", .exact("1.4.2"))
//.product(name: "Logging", package: "swift-log")