private IEnumerable CreatePushBuildConfiguration()

in tool/TeamCity.Docker/TeamCityKotlinSettingsGenerator.cs [284:360]
62 lines of code
12 McCabe index (conditional complexity)

        private IEnumerable<string> CreatePushBuildConfiguration(string buildTypeId, string platform, IEnumerable<Image> allImages, params string[] buildBuildTypes)
        {
            var images = allImages.Where(i => i.File.Platform == platform).ToList();
            yield return $"object {buildTypeId}: BuildType(" + "{";
             yield return $"\t name = \"Push {platform}\"";
            yield return $"\t{_buildNumberPattern}";

            yield return "\t steps {";
            foreach (var image in images)
            {
                // docker pull
                var tag = image.File.Tags.First();
                var repo = $"{image.File.ImageId}{BuildImagePostfix}:{tag}";
                var repoTag = $"{BuildRepositoryName}{repo}";
                foreach (var pullCommand in CreatePullCommand(repoTag, repo))
                {
                    yield return $"\t\t{pullCommand}";
                }

                var newRepo = $"{DeployRepositoryName}{image.File.ImageId}";
                var newRepoTag = $"{newRepo}:{image.File.Tags.First()}";
                foreach (var tagCommand in CreateTagCommand(repoTag, newRepoTag, repo))
                {
                    yield return $"\t\t{tagCommand}";
                }

                foreach (var pushCommand in CreatePushCommand($"{newRepo}", repo, tag))
                {
                    yield return $"\t\t{pushCommand}";
                }
            }

            yield return "\t }";

            yield return "\t features {";

            var weight = images.Sum(i => i.File.Weight.Value);
            if (weight > 0)
            {
                foreach (var feature in CreateFreeDiskSpaceFeature(weight))
                {
                    yield return $"\t\t {feature}";
                }
            }

            foreach (var feature in CreateDockerFeature())
            {
                yield return $"\t\t {feature}";
            }

            // ReSharper disable once StringLiteralTypo
            foreach (var feature in CreateSwabraFeature())
            {
                yield return $"\t\t {feature}";
            }

            yield return "\t }";

            foreach (var param in CreateSpaceParams(weight))
            {
                yield return $"\t{param}";
            }

            var requirements = images.SelectMany(i => i.File.Requirements).Distinct().ToList();
            foreach (var lines in CreateDockerRequirements(requirements, platform))
            {
                yield return $"\t {lines}";
            }

            foreach (var dependencies in CreateSnapshotDependencies(buildBuildTypes, null))
            {
                yield return $"\t{dependencies}";
            }

            yield return "})";
            yield return string.Empty;
        }