BuildCreator.cs

using Microsoft.TeamFoundation.Framework.Server;
using Microsoft.TeamFoundation.Common;
using Microsoft.TeamFoundation.VersionControl.Client;
using Microsoft.TeamFoundation.Client;


public class BuildCreator : ISubscriber
{
    public string Name
    {
        get { return "Automated Build Creator"; }
    }

    public SubscriberPriority Priority
    {
        get { return SubscriberPriority.Normal; }
    }

    public EventNotificationStatus ProcessEvent(TeamFoundationRequestContext requestContext, NotificationType notificationType, object notificationEventArgs, out int statusCode, out string statusMessage, out Microsoft.TeamFoundation.Common.ExceptionPropertyCollection properties)
    {
        statusCode = 0;
        statusMessage = string.Empty;
        properties = null;

        if (notificationType == NotificationType.Notification && notificationEventArgs is Microsoft.TeamFoundation.VersionControl.Server.CheckinNotification)
        {
            var checkinNotification = notificationEventArgs as Microsoft.TeamFoundation.VersionControl.Server.CheckinNotification;

            TeamFoundationLocationService service = requestContext.GetService<TeamFoundationLocationService>();
            Uri selfReferenceUri = service.GetSelfReferenceUri(requestContext, service.GetDefaultAccessMapping(requestContext));
            TfsTeamProjectCollection tfsTeamProjectCollection = new TfsTeamProjectCollection(selfReferenceUri);
            var versionControl = (VersionControlServer)tfsTeamProjectCollection.GetService(typeof(VersionControlServer));
            var changeSet = versionControl.GetChangeset(checkinNotification.Changeset);

            foreach (var change in changeSet.Changes)
            {
                if ((change.ChangeType & (ChangeType.Add | ChangeType.Branch)) == 0)
                    continue;

                if (!Path.GetExtension(change.Item.ServerItem).Equals(".sln"))
                    continue;

                var buildDefinitionHelper = new BuildDefinitionHelper(tfsTeamProjectCollection);
                buildDefinitionHelper.CreateBuildDefinition(change.Item.ServerItem);
            }
        }

        return EventNotificationStatus.ActionPermitted;
    }

    public Type[] SubscribedTypes()
    {
        return new Type[] { typeof(Microsoft.TeamFoundation.VersionControl.Server.CheckinNotification) };
    }
}