set iOS build version to CloudBuild version

_readme

CloudBuildManifest.cs and CloudBuildAPI.cs are upadated versions of the ones found here (namespace changed)
https://github.com/derkork/uTomate-UnityCloudBuildSample

Just put these files in an editor folder and you're good to go, your next cloudbuild iOS build will have an increased version number.
We're using Cloudbuild to generate builds which we can upload to testflight, and this makes that possible :)

CloudBuildAPI.cs

namespace UnityEngine.CloudBuild.API
{
    using System;
    using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;
    
#if UNITY_CLOUD_BUILD

    using UnityEditor;
    using UnityEngine.CloudBuild;
	using UnityEngine.CloudBuild.API;

#endif

    public class CloudBuildAPI
    {
        public static CloudBuildManifest GetBuildManifest()
        {
#if  UNITY_CLOUD_BUILD
            var manifest = (BuildManifestObject)AssetDatabase.LoadAssetAtPath("Assets/__UnityCloud__/Resources/UnityCloudBuildManifest.scriptable.asset", typeof(BuildManifestObject));
            return new CloudBuildManifest(manifest);
#else
            var result = new CloudBuildManifest();
            // add a few dummy values
            result.ProjectId = "com.yourproject.id[Local Dummy]";
            result.ScmBranch = "master[Local Dummy]";
            result.ScmCommitId = "da39a3ee5e6b4b0d3255bfef95601890afd80709[Local Dummy]";
            result.UnityVersion = Application.unityVersion;
            result.XCodeVersion = "5.5 [Local Dummy]";
            result.BuildNumber = "182 [Local Dummy]";
            result.BuildStartTime = (DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds.ToString();
            result.BundleId = "com.yourbundle.id[Local Dummy]";
            return result;
#endif
        }
    }
}

CloudBuildIncreaseVersionNum.cs

using UnityEngine;
using UnityEditor;
using UnityEditor.Callbacks;
using System.Collections;
using System.Collections.Generic;
using MiniJSON;

#if UNITY_IOS && UNITY_CLOUD_BUILD
using UnityEditor.iOS.Xcode;
using System.IO;
#endif

public class CloudBuildIncreaseVersionNum {


    public class ChangeIOSBuildNumber {
 
        #if UNITY_IOS && UNITY_CLOUD_BUILD
        [PostProcessBuild]
        public static void ChangeXcodePlist(BuildTarget buildTarget, string pathToBuiltProject) {

            if (buildTarget == BuildTarget.iOS) {
                // Get plist
                string plistPath = pathToBuiltProject + "/Info.plist";
                PlistDocument plist = new PlistDocument();
                plist.ReadFromString(File.ReadAllText(plistPath));
       
                // Get root
                PlistElementDict rootDict = plist.root;
       

                // browse manifest
                var cloudbuildVersionValue = UnityEngine.CloudBuild.API.CloudBuildAPI.GetBuildManifest().BuildNumber;
		

                // Change value of CFBundleVersion in Xcode plist
                var buildKey = "CFBundleVersion";
                rootDict.SetString(buildKey,cloudbuildVersionValue);
       
                // Write to file
                File.WriteAllText(plistPath, plist.WriteToString());
            }
        
        }
#endif
                                      }
 
}

CloudBuildManifest.cs

namespace UnityEngine.CloudBuild.API
{
    using System.Collections.Generic;

    // usings go INSIDE the namespace so they don't conflict with the rest
    using UnityEngine;

#if UNITY_CLOUD_BUILD
    using UnityEngine.CloudBuild;
#endif

    /// <summary>
    /// API against Unity's build manifest object. Works locally (on a mock dictionary) and in the cloud.
    /// </summary>
    public class CloudBuildManifest
    {
#if UNITY_CLOUD_BUILD
        private BuildManifestObject buildManifestObject;
#else
        private Dictionary<string, string> contents;
#endif

#if UNITY_CLOUD_BUILD
        internal CloudBuildManifest(BuildManifestObject buildManifestObject)
        {
            this.buildManifestObject = buildManifestObject;
        }
#else

        internal CloudBuildManifest()
        {
            this.contents = new Dictionary<string, string>();
        }

#endif

        public string ScmCommitId
        {
            get
            {
                return Get("scmCommitId", null);
            }
            set
            {
                Set("scmCommitId", value);
            }
        }

        public string ScmBranch
        {
            get
            {
                return Get("scmBranch", null);
            }
            set
            {
                Set("scmBranch", value);
            }
        }

        public string BuildNumber
        {
            get
            {
                return Get("buildNumber", null);
            }
            set
            {
                Set("buildNumber", value);
            }
        }

        public string BuildStartTime
        {
            get
            {
                return Get("buildStartTime", null);
            }
            set
            {
                Set("buildStartTime", value);
            }
        }

        public string ProjectId
        {
            get
            {
                return Get("projectId", null);
            }
            set
            {
                Set("projectId", value);
            }
        }

        public string BundleId
        {
            get
            {
                return Get("bundleId", null);
            }
            set
            {
                Set("bundleId", value);
            }
        }

        public string UnityVersion
        {
            get
            {
                return Get("unityVersion", null);
            }
            set
            {
                Set("unityVersion", value);
            }
        }

        public string XCodeVersion
        {
            get
            {
                return Get("xCodeVersion", null);
            }
            set
            {
                Set("xCodeVersion", value);
            }
        }

        public string CloudBuildTargetName
        {
            get
            {
                return Get("cloudBuildTargetName", null);
            }
            set
            {
                Set("cloudBuildTargetName", value);
            }
        }

        public string Get(string key, string defaultValue)
        {
#if UNITY_CLOUD_BUILD
            return buildManifestObject.GetValue(key, defaultValue);
#else
            string result;
            if (!contents.TryGetValue(key, out result))
            {
                return defaultValue;
            }
            return result;
#endif
        }

        public void Set(string key, string value)
        {
#if UNITY_CLOUD_BUILD
            buildManifestObject.SetValue(key, value);
#else
            contents[key] = value;
#endif
        }
    }
}