PBXProject.SetBaseReferenceForConfig

Задает ссылку на базовую конфигурацию для указанной конфигурации сборки.

Примечание: Если baseReference параметр null, базовая ссылка удаляется.

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

public class Sample_SetBaseReferenceForConfig  
{
    [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 mainTargetGuid = pbxProject.GetUnityMainTargetGuid();

        // Retrieve the configuration name (this can be "Debug", "Release", or any custom configuration name)
        string configName = "Release";

        // Get the "Release" build configuration GUID 
        string configGuid = pbxProject.BuildConfigByName(mainTargetGuid, configName);
        
        // Add the file you will be using as base reference for the "Release" configuration
        // This example expects you having a "release.xcconfig" file in your project's "Assets/Resources/" directory
        string filePath = Path.Combine(Application.dataPath, "Resources/release.xcconfig");
        string file = pbxProject.AddFile(filePath, "Configs/release.xcconfig", PBXSourceTree.Source);
        
        // Set the base configuration file using SetBaseReferenceForConfig
        pbxProject.SetBaseReferenceForConfig(configGuid, file);
        
        // Apply changes to the pbxproj file
        pbxProject.WriteToFile(projectPath);
    }
}