setup.rb in fastlane-2.54.0

- old
+ new
@@ -7,18 +7,24 @@
       if File.exist?(snapfile_path)
         UI.user_error!("Snapfile already exists at path '#{snapfile_path}'. Run 'fastlane snapshot' to generate screenshots.")
       end
 
       File.write(snapfile_path, File.read("#{Snapshot::ROOT}/lib/assets/SnapfileTemplate"))
-      File.write(File.join(path, 'SnapshotHelper.swift'), File.read("#{Snapshot::ROOT}/lib/assets/SnapshotHelper.swift"))
+      snapshot_helper_filename = "SnapshotHelperXcode8.swift"
+      if Helper.xcode_at_least?("9.0")
+        snapshot_helper_filename = "SnapshotHelper.swift"
+      end
 
-      puts "✅  Successfully created SnapshotHelper.swift '#{File.join(path, 'SnapshotHelper.swift')}'".green
+      # ensure that upgrade is cause when going from 8 to 9
+      File.write(File.join(path, snapshot_helper_filename), File.read("#{Snapshot::ROOT}/lib/assets/#{snapshot_helper_filename}"))
+
+      puts "✅  Successfully created #{snapshot_helper_filename} '#{File.join(path, snapshot_helper_filename)}'".green
       puts "✅  Successfully created new Snapfile at '#{snapfile_path}'".green
 
       puts "-------------------------------------------------------".yellow
       puts "Open your Xcode project and make sure to do the following:".yellow
       puts "1) Add a new UI Test target to your project".yellow
-      puts "2) Add the ./fastlane/SnapshotHelper.swift to your UI Test target".yellow
+      puts "2) Add the ./fastlane/#{snapshot_helper_filename} to your UI Test target".yellow
       puts "   You can move the file anywhere you want".yellow
       puts "3) Call `setupSnapshot(app)` when launching your app".yellow
       puts ""
       puts "  let app = XCUIApplication()"
       puts "  setupSnapshot(app)"