PBXProject.GetSourcesBuildPhaseByTarget

Возвращает GUID фазы сборки источников для заданной цели.

using UnityEngine;
using UnityEditor;
using System.IO;
using UnityEditor.Callbacks;
using UnityEditor.iOS.Xcode;

public class Sample_GetSourcesBuildPhaseByTarget  
{
    [PostProcessBuild]
    public static void OnPostprocessBuild(BuildTarget buildTarget, string pathToBuiltProject)
    {

        // Stop processing if build target is not iOS
        if (buildTarget != BuildTarget.iOS)
            return;

        // Initialize PBXProject
        string projectPath = PBXProject.GetPBXProjectPath(pathToBuiltProject);
        PBXProject pbxProject = new PBXProject();
        pbxProject.ReadFromFile(projectPath);

        // Get the target GUID
        string targetGuid = pbxProject.GetUnityMainTargetGuid();

        // Get the "Sources Build" build phase GUID 
        string sourcesBuildPhase = pbxProject.GetSourcesBuildPhaseByTarget(targetGuid);

        // Log the "Sources Build" phase GUID for debugging
        Debug.Log("'Sources Build' phase GUID: " + sourcesBuildPhase);
    }
}