init throws serialization errors

Author: tomlokhorst

Example/Example/main.swift

@@ -12,21 +12,8 @@ import Foundation
 let projectFile = "project.pbxproj"
 
 
-// Call plutil to convert pbxproj file to JSON
-let task = NSTask()
-task.launchPath = "/usr/bin/plutil"
-task.arguments = ["-convert", "json", "-o", "-", projectFile]
-
-let pipe = NSPipe()
-task.standardOutput = pipe
-task.launch()
-
-let data = pipe.fileHandleForReading.readDataToEndOfFile()
-let output = NSString(data: data, encoding: NSUTF8StringEncoding) as! String
-
-
 // Parse JSON to XCProjectFile object
-let proj = XCProjectFile(filename: "project.pbxproj")!
+let proj = try! XCProjectFile(filename: projectFile)!
 
 // Print paths for all files in Resources build phases
 for target in proj.project.targets {

Xcode/Xcode/XCProjectFile.swift

@@ -46,13 +46,18 @@ public class XCProjectFile {
   let openStepFormat: Bool
   let allObjects = AllObjects()
 
-  public convenience init?(filename: String) {
+  public convenience init?(filename: String) throws {
 
     guard let data = NSData(contentsOfFile: filename) else { return nil }
 
+    try self.init(propertyListData: data)
+  }
+
+  public convenience init?(propertyListData data: NSData) throws {
+
     let options = NSPropertyListReadOptions.Immutable
     var format: NSPropertyListFormat = NSPropertyListFormat.BinaryFormat_v1_0
-    let obj = try? NSPropertyListSerialization.propertyListWithData(data, options: options, format: &format)
+    let obj = try NSPropertyListSerialization.propertyListWithData(data, options: options, format: &format)
 
     guard let dict = obj as? JsonObject else { return nil }
 
@@ -181,7 +186,6 @@ public class PBXGroup : PBXReference {
   // convenience accessors
   public lazy var subGroups: [PBXGroup] = self.children.ofType(PBXGroup.self)
   public lazy var fileRefs: [PBXFileReference] = self.children.ofType(PBXFileReference)
-
 }
 
 public class PBXVariantGroup : PBXGroup {