Use PropertyListSerialization

Example-Info.plist

@@ -17,7 +17,7 @@
 	<key>CFBundleShortVersionString</key>
 	<string>1.0</string>
 	<key>CFBundleVersion</key>
-	<string>1</string>
+	<string>3</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>UIApplicationSceneManifest</key>

Sources/SwiftExampleCommand/main.swift

@@ -2,38 +2,15 @@ print("Hello, Swift Command!")
 
 import Foundation
 
-class MyXMLStructure: NSObject, XMLParserDelegate {
-    var depth: Int = 0;
-    func parser(_ parser: XMLParser, didStartElement elementName: String, namespaceURI: String?, qualifiedName qName: String?, attributes attributeDict: [String : String]) {
-        depth += 1
-        print(String(repeating: "→", count: depth), "START ", elementName)
-
-    }
-    func parser(_ parser: XMLParser, foundCharacters word: String) {
-        let trimmed = word.trimmingCharacters(in: .whitespacesAndNewlines)
-        if trimmed != "" {
-            print(String(repeating: " ", count: depth + 1), "=", trimmed)
-        }
-    }
-    func parser(_ parser: XMLParser, didEndElement elementName: String, namespaceURI: String?, qualifiedName qName: String?) {
-        print(String(repeating: "→", count: depth), "END   ", elementName)
-        depth -= 1
-    }
-    func parser(_ parser: XMLParser, parseErrorOccurred parseError: Error) {
-        print("[1001] PARSE ERROR:", parseError)
-    }
-}
-let instance = MyXMLStructure()
-
 let fpath = CommandLine.arguments[1]
 print("[0001] ARG PATH:", fpath)
 
-let url = NSURL(fileURLWithPath: fpath) as URL
-var xmlparser = XMLParser(contentsOf: url)!
-xmlparser.delegate = instance
+let contents = FileManager.default.contents(atPath: fpath)!
+
+let plist = try PropertyListSerialization.propertyList(from: contents, options: .mutableContainersAndLeaves, format: nil) as! NSMutableDictionary
+
+plist["CFBundleVersion"] = "3"
 
-if xmlparser.parse() {
-    print("[0002] DEPTH:", instance.depth)
-} else {
-    print("[1002] :", xmlparser.parserError)
+if let data = try? PropertyListSerialization.data(fromPropertyList: plist, format: .xml, options: .max) {
+    try data.write(to: NSURL(fileURLWithPath: fpath) as URL)
 }