New: Auto tag movies based on studio

src/NzbDrone.Core/AutoTagging/Specifications/StudioSpecification.cs

@@ -0,0 +1,39 @@
+using System.Collections.Generic;
+using System.Linq;
+using FluentValidation;
+using NzbDrone.Common.Extensions;
+using NzbDrone.Core.Annotations;
+using NzbDrone.Core.Movies;
+using NzbDrone.Core.Validation;
+
+namespace NzbDrone.Core.AutoTagging.Specifications
+{
+    public class StudioSpecificationValidator : AbstractValidator<StudioSpecification>
+    {
+        public StudioSpecificationValidator()
+        {
+            RuleFor(c => c.Value).NotEmpty();
+        }
+    }
+
+    public class StudioSpecification : AutoTaggingSpecificationBase
+    {
+        private static readonly StudioSpecificationValidator Validator = new ();
+
+        public override int Order => 1;
+        public override string ImplementationName => "Studio";
+
+        [FieldDefinition(1, Label = "AutoTaggingSpecificationStudio", Type = FieldType.Tag)]
+        public IEnumerable<string> Value { get; set; }
+
+        protected override bool IsSatisfiedByWithoutNegate(Movie movie)
+        {
+            return Value.Any(studio => movie.MovieMetadata?.Value?.Studio?.EqualsIgnoreCase(studio) ?? false);
+        }
+
+        public override NzbDroneValidationResult Validate()
+        {
+            return new NzbDroneValidationResult(Validator.Validate(this));
+        }
+    }
+}

src/NzbDrone.Core/Localization/Core/en.json

@@ -126,6 +126,7 @@
   "AutoTaggingSpecificationQualityProfile": "Quality Profile",
   "AutoTaggingSpecificationRootFolder": "Root Folder",
   "AutoTaggingSpecificationStatus": "Status",
+  "AutoTaggingSpecificationStudio": "Studio(s)",
   "AutoTaggingSpecificationTag": "Tag",
   "AutoUnmonitorPreviouslyDownloadedMoviesHelpText": "Movies deleted from the disk are automatically unmonitored in {appName}",
   "Automatic": "Automatic",