Github Container Registry Version Cleanup

gh_container_version_cleanup.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Flurl;
using Flurl.Http;

namespace gh_container_version_cleanup
{
    class Program
    {
        static async Task Main(string[] args)
        {
            //Console.Write("User PAT: ");
            string pat = "pat";//Console.ReadLine();
            //Console.Write("Org: ");
            string org = "org";//Console.ReadLine();
            //Console.Write("Package: ");
            string package = "package";//Console.ReadLine();.

            DateTime cutOff = DateTime.UtcNow - new TimeSpan(30, 0, 0, 0);

            int perPage = 100;
            int page = 0;
            var versions = new List<dynamic>();
            IList<dynamic> batch;

            do
            {
                string url = $"https://api.github.com/orgs/{org}/packages/container/{package}/versions?per_page={perPage}&page={page}";

                batch = await url
                    .WithHeaders(new
                    {
                        Accept = "application/vnd.github.v3+json",
                        User_Agent = "package-ops"
                    })
                    .WithOAuthBearerToken(pat)
                    .GetJsonListAsync();

                versions.AddRange(batch);
                page++;
            } while (batch.Count == perPage);

            Console.WriteLine("Found " + versions.Count + "versions");

            foreach(var version in versions)
            {
                var uniqueTags = new List<string>();
                string allTagsString = "";
                foreach(var tag in version.metadata.container.tags)
                {
                    if(!tag.ToString().StartsWith("v")
                        && !tag.ToString().StartsWith("build-")
                            && !tag.ToString().StartsWith("branch-")
                        )
                    {
                        uniqueTags.Add(tag.ToString());
                    }
                    allTagsString += tag + "; ";
                }

                if(uniqueTags.Count>0)
                {
                    //keep it
                }
                else if((DateTime)version.updated_at > cutOff)
                {
                    //keep it
                }
                else
                {
                    //delete it
                    Console.WriteLine("Deleting " + allTagsString+" "+ version.name+" built "+version.updated_at);

                    var deleteUrl = $"https://api.github.com/orgs/{org}/packages/container/{package}/versions/{version.id}";

                    try
                    {
                        var deleteResult = await deleteUrl.WithHeaders(new
                        {
                            Accept = "application/vnd.github.v3+json",
                            User_Agent = "gps-devops"
                        })
                        .WithOAuthBearerToken(pat)
                        .DeleteAsync();
                    }
                    catch(Exception ex)
                    {
                        Console.WriteLine("Failed to delete");
                    }
                }
            }


        }
    }
}