I’ve created an Android plugin for Unity, and it requires some dependencies to be added manually. The current steps to do this are:

1. Go to Edit > Project Settings > Player > Publishing Settings.
2. Enable “Custom Main Gradle Template.”
3. Navigate to and open the mainTemplate.gradle file.
4. Add the dependencies I provided.

Is there a way to automate this process?

I was considering:

• A pre-build script that adds the dependencies.

using System.IO;
using UnityEditor;
using UnityEditor.Build;
using UnityEditor.Build.Reporting;
using UnityEngine;

public class GradleTemplateModifier : IPreprocessBuildWithReport
{
    public int callbackOrder => 0;

    public void OnPreprocessBuild(BuildReport report)
    {
        if (report.summary.platform == BuildTarget.Android)
        {
            string gradleTemplatePath = "Assets/Plugins/Android/mainTemplate.gradle";
            if (File.Exists(gradleTemplatePath))
            {
                string content = File.ReadAllText(gradleTemplatePath);
                string[] dependencies = new[]
                {
                    "implementation 'com.example:some-dependency:1.0.0'",
                };

                foreach (var dependency in dependencies)
                {
                    if (!content.Contains(dependency))
                    {
                        int index = content.LastIndexOf("dependencies {") + "dependencies {".Length;
                        content = content.Insert(index, $"nt{dependency}");
                        File.WriteAllText(gradleTemplatePath, content);
                        Debug.Log("Added dependency to mainTemplate.gradle");
                    }
                }
            }
        }
    }
}

In this script, I’m adding the plugin dependencies directly to the `mainTemplate.gradle` file and saving it. However, this approach has some issues:

• If I need to update the dependency version, I also need to remove the old one.

• If the user is using an old dependency version, it could create conflicts.

As you can see, I need help with the overall flow and implementation. I’m sure there’s a much better solution out there.
From what i read unity doesn’t support multiple build.gradle files.
Is there an easier why? Is there a built in why?