should be it

external/duckdb/tools/swift/duckdb-swift/DuckDBPlayground.playground/Sources/SurveyLoader.swift

@@ -0,0 +1,65 @@
+
+import Foundation
+import PlaygroundSupport
+import System
+
+public enum SurveyLoader {
+  
+  enum Failure {
+    case unableToDownloadSurveyContent
+  }
+  
+  private static let localDataURL = playgroundSharedDataDirectory
+    .appending(component: "org.duckdb", directoryHint: .isDirectory)
+    .appending(component: "surveys")
+  
+  public static func downloadSurveyCSV(forYear year: Int) async throws -> URL {
+    try await downloadSurveyIfNeeded(forYear: year)
+    return localSurveyDataURL(forYear: year)
+      .appending(component: "survey_results_public.csv")
+  }
+  
+  public static func downloadSurveySchemaCSV(forYear year: Int) async throws -> URL {
+    try await downloadSurveyIfNeeded(forYear: year)
+    return localSurveyDataURL(forYear: year)
+      .appending(component: "survey_results_schema.csv")
+  }
+  
+  public static func downloadSurveyIfNeeded(forYear year: Int) async throws {
+    let surveyDataURL = localSurveyDataURL(forYear: year)
+    if FileManager.default.fileExists(atPath: surveyDataURL.path) {
+      // survey already exists. skipping.
+      return
+    }
+    let surveyURL = remoteSurveyDataZipURL(forYear: year)
+    let (zipFileURL, _) = try await URLSession.shared.download(from: surveyURL)
+    try FileManager.default.createDirectory(
+      at: surveyDataURL, withIntermediateDirectories: true)
+    try Shell.execute("unzip '\(zipFileURL.path)' -d '\(surveyDataURL.path)'")
+  }
+  
+  private static func localSurveyDataURL(forYear year: Int) -> URL {
+    localDataURL.appending(component: "\(year)")
+  }
+  
+  private static func remoteSurveyDataZipURL(forYear year: Int) -> URL {
+    URL(string: "https://info.stackoverflowsolutions.com/rs/719-EMH-566/images/stack-overflow-developer-survey-\(year).zip")!
+  }
+}
+
+fileprivate enum Shell {
+  
+  @discardableResult
+  static func execute(_ command: String) throws -> String {
+    let process = Process()
+    let pipe = Pipe()
+    process.executableURL = URL(fileURLWithPath: "/bin/zsh")
+    process.arguments = ["-c", command]
+    process.standardOutput = pipe
+    process.standardError = pipe
+    try process.run()
+    process.waitUntilExit()
+    let data = pipe.fileHandleForReading.readDataToEndOfFile()
+    return String(data: data, encoding: .utf8)!
+  }
+}