Move Cronos to Foundatio namespace to prevent collisions.

src/Foundatio.Extensions.Hosting/Cronos/CalendarHelper.cs

@@ -5,7 +5,7 @@
 using System;
 using System.Runtime.CompilerServices;
 
-namespace Cronos;
+namespace Foundatio.Extensions.Hosting.Cronos;
 
 internal static class CalendarHelper
 {

src/Foundatio.Extensions.Hosting/Cronos/CronExpression.cs

@@ -26,7 +26,7 @@
 using System.Runtime.CompilerServices;
 using System.Text;
 
-namespace Cronos;
+namespace Foundatio.Extensions.Hosting.Cronos;
 
 /// <summary>
 /// Provides a parser and scheduler for cron expressions.

src/Foundatio.Extensions.Hosting/Cronos/CronExpressionFlag.cs

@@ -22,7 +22,7 @@
 
 using System;
 
-namespace Cronos;
+namespace Foundatio.Extensions.Hosting.Cronos;
 
 [Flags]
 internal enum CronExpressionFlag : byte

src/Foundatio.Extensions.Hosting/Cronos/CronField.cs

@@ -20,7 +20,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 // SOFTWARE.
 
-namespace Cronos;
+namespace Foundatio.Extensions.Hosting.Cronos;
 
 internal sealed class CronField
 {

src/Foundatio.Extensions.Hosting/Cronos/CronFormat.cs

@@ -22,7 +22,7 @@
 
 using System;
 
-namespace Cronos;
+namespace Foundatio.Extensions.Hosting.Cronos;
 
 /// <summary>
 /// Defines the cron format options that customize string parsing for <see cref="CronExpression.Parse(string, CronFormat)"/>.

src/Foundatio.Extensions.Hosting/Cronos/CronFormatException.cs

@@ -22,7 +22,7 @@
 
 using System;
 
-namespace Cronos;
+namespace Foundatio.Extensions.Hosting.Cronos;
 
 /// <summary>
 /// Represents an exception that's thrown, when invalid Cron expression is given.

src/Foundatio.Extensions.Hosting/Cronos/TimeZoneHelper.cs

@@ -22,7 +22,7 @@
 
 using System;
 
-namespace Cronos;
+namespace Foundatio.Extensions.Hosting.Cronos;
 
 internal static class TimeZoneHelper
 {

src/Foundatio.Extensions.Hosting/Jobs/ScheduledJobManager.cs

@@ -40,9 +40,12 @@ public ScheduledJobManager(IServiceProvider serviceProvider, ILoggerFactory logg
     {
         _serviceProvider = serviceProvider;
         _loggerFactory = loggerFactory;
-        _cacheClient = serviceProvider.GetService<ICacheClient>() ?? new InMemoryCacheClient(o => o.LoggerFactory(loggerFactory));
+        var cacheClient = serviceProvider.GetService<ICacheClient>();
         _jobs.AddRange(serviceProvider.GetServices<ScheduledJobRegistration>().Select(j => new ScheduledJobRunner(j.Options, serviceProvider, _cacheClient, loggerFactory)));
         _jobsArray = _jobs.ToArray();
+        if (_jobs.Any(j => j.Options.IsDistributed && cacheClient == null))
+            throw new ArgumentException("A distributed cache client is required to run distributed jobs.");
+        _cacheClient = cacheClient ?? new InMemoryCacheClient(o => o.LoggerFactory(loggerFactory));
     }
 
     public void AddOrUpdate<TJob>(string cronSchedule, Action<ScheduledJobOptionsBuilder> configure = null) where TJob : class, IJob

src/Foundatio.Extensions.Hosting/Jobs/ScheduledJobRunner.cs

@@ -2,8 +2,8 @@
 using System.Diagnostics;
 using System.Threading;
 using System.Threading.Tasks;
-using Cronos;
 using Foundatio.Caching;
+using Foundatio.Extensions.Hosting.Cronos;
 using Foundatio.Jobs;
 using Foundatio.Lock;
 using Foundatio.Utility;