move incompatible mod logic into mod registry

src/StardewModdingAPI/Framework/ModRegistry.cs

@@ -3,6 +3,8 @@ using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
 using System.Reflection;
+using System.Text.RegularExpressions;
+using StardewModdingAPI.Framework.Models;
 
 namespace StardewModdingAPI.Framework
 {
@@ -18,10 +20,21 @@ namespace StardewModdingAPI.Framework
         /// <summary>The friendly mod names treated as deprecation warning sources (assembly full name => mod name).</summary>
         private readonly IDictionary<string, string> ModNamesByAssembly = new Dictionary<string, string>();
 
+        /// <summary>The mod versions which should be disabled due to incompatibility.</summary>
+        private readonly IncompatibleMod[] IncompatibleMods;
+
 
         /*********
         ** Public methods
         *********/
+        /// <summary>Construct an instance.</summary>
+        /// <param name="incompatibleMods">The mod versions which should be disabled due to incompatibility.</param>
+        public ModRegistry(IEnumerable<IncompatibleMod> incompatibleMods)
+        {
+            this.IncompatibleMods = incompatibleMods.ToArray();
+        }
+
+
         /****
         ** IModRegistry
         ****/
@@ -113,5 +126,22 @@ namespace StardewModdingAPI.Framework
             // no known assembly found
             return null;
         }
+
+        /// <summary>Get a record indicating why a mod is incompatible (if applicable).</summary>
+        /// <param name="manifest">The mod manifest.</param>
+        /// <returns>Returns the incompatibility record if applicable, else <c>null</c>.</returns>
+        internal IncompatibleMod GetIncompatibilityRecord(IManifest manifest)
+        {
+            string key = !string.IsNullOrWhiteSpace(manifest.UniqueID) ? manifest.UniqueID : manifest.EntryDll;
+            return (
+                from mod in this.IncompatibleMods
+                where
+                    mod.ID == key
+                    && (mod.LowerSemanticVersion == null || !manifest.Version.IsOlderThan(mod.LowerSemanticVersion))
+                    && !manifest.Version.IsNewerThan(mod.UpperSemanticVersion)
+                    && (string.IsNullOrWhiteSpace(mod.ForceCompatibleVersion) || !Regex.IsMatch(manifest.Version.ToString(), mod.ForceCompatibleVersion, RegexOptions.IgnoreCase))
+                select mod
+            ).FirstOrDefault();
+        }
     }
 }

src/StardewModdingAPI/Framework/Models/IncompatibleMod.cs

@@ -1,4 +1,5 @@
-using System.Text.RegularExpressions;
+using System.Runtime.Serialization;
+using Newtonsoft.Json;
 
 namespace StardewModdingAPI.Framework.Models
 {
@@ -8,6 +9,9 @@ namespace StardewModdingAPI.Framework.Models
         /*********
         ** Accessors
         *********/
+        /****
+        ** From config
+        ****/
         /// <summary>The unique mod ID.</summary>
         public string ID { get; set; }
 
@@ -34,24 +38,28 @@ namespace StardewModdingAPI.Framework.Models
         public string ReasonPhrase { get; set; }
 
 
+        /****
+        ** Injected
+        ****/
+        /// <summary>The semantic version corresponding to <see cref="LowerVersion"/>.</summary>
+        [JsonIgnore]
+        public ISemanticVersion LowerSemanticVersion { get; set; }
+
+        /// <summary>The semantic version corresponding to <see cref="UpperVersion"/>.</summary>
+        [JsonIgnore]
+        public ISemanticVersion UpperSemanticVersion { get; set; }
+
+
         /*********
-        ** Public methods
+        ** Private methods
         *********/
-        /// <summary>Get whether the specified version is compatible according to this metadata.</summary>
-        /// <param name="version">The current version of the matching mod.</param>
-        public bool IsCompatible(ISemanticVersion version)
+        /// <summary>The method called when the model finishes deserialising.</summary>
+        /// <param name="context">The deserialisation context.</param>
+        [OnDeserialized]
+        private void OnDeserialized(StreamingContext context)
         {
-            ISemanticVersion lowerVersion = this.LowerVersion != null ? new SemanticVersion(this.LowerVersion) : null;
-            ISemanticVersion upperVersion = new SemanticVersion(this.UpperVersion);
-
-            // ignore versions not in range
-            if (lowerVersion != null && version.IsOlderThan(lowerVersion))
-                return true;
-            if (version.IsNewerThan(upperVersion))
-                return true;
-
-            // allow versions matching override
-            return !string.IsNullOrWhiteSpace(this.ForceCompatibleVersion) && Regex.IsMatch(version.ToString(), this.ForceCompatibleVersion, RegexOptions.IgnoreCase);
+            this.LowerSemanticVersion = this.LowerVersion != null ? new SemanticVersion(this.LowerVersion) : null;
+            this.UpperSemanticVersion = this.UpperVersion != null ? new SemanticVersion(this.UpperVersion) : null;
         }
     }
 }

src/StardewModdingAPI/Program.cs

@@ -64,7 +64,7 @@ namespace StardewModdingAPI
         internal SGame GameInstance;
 
         /// <summary>Tracks the installed mods.</summary>
-        internal readonly ModRegistry ModRegistry = new ModRegistry();
+        internal readonly ModRegistry ModRegistry;
 
         /// <summary>Manages deprecation warnings.</summary>
         internal readonly DeprecationManager DeprecationManager;
@@ -92,6 +92,7 @@ namespace StardewModdingAPI
 
             // initialise
             this.Monitor = new Monitor("SMAPI", this.ConsoleManager, this.LogFile, this.ExitGameImmediately) { WriteToConsole = writeToConsole };
+            this.ModRegistry = new ModRegistry(this.Settings.IncompatibleMods);
             this.DeprecationManager = new DeprecationManager(this.Monitor, this.ModRegistry);
         }
 
@@ -388,13 +389,9 @@ namespace StardewModdingAPI
                     continue;
                 }
 
-                // validate known incompatible mods
-                {
-                    string modKey = !string.IsNullOrWhiteSpace(manifest.UniqueID) ? manifest.UniqueID : manifest.EntryDll;
-                    IncompatibleMod compatibility = this.Settings.IncompatibleMods.FirstOrDefault(p => p.ID == modKey);
-                    if(compatibility != null)
-                    {
-                        if (!compatibility.IsCompatible(manifest.Version))
+                // validate compatibility
+                IncompatibleMod compatibility = this.ModRegistry.GetIncompatibilityRecord(manifest);
+                if (compatibility != null)
                 {
                     bool hasOfficialUrl = !string.IsNullOrWhiteSpace(compatibility.UpdateUrl);
                     bool hasUnofficialUrl = !string.IsNullOrWhiteSpace(compatibility.UnofficialUpdateUrl);
@@ -409,8 +406,6 @@ namespace StardewModdingAPI
                     this.Monitor.Log(warning, LogLevel.Error);
                     continue;
                 }
-                    }
-                }
 
                 // validate SMAPI version
                 if (!string.IsNullOrWhiteSpace(manifest.MinimumApiVersion))

src/StardewModdingAPI/SemanticVersion.cs

@@ -63,9 +63,13 @@ namespace StardewModdingAPI
 
         /// <summary>Get an integer indicating whether this version precedes (less than 0), supercedes (more than 0), or is equivalent to (0) the specified version.</summary>
         /// <param name="other">The version to compare with this instance.</param>
+        /// <exception cref="ArgumentNullException">The <paramref name="other"/> value is null.</exception>
         /// <remarks>The implementation is defined by Semantic Version 2.0 (http://semver.org/).</remarks>
         public int CompareTo(ISemanticVersion other)
         {
+            if(other == null)
+                throw new ArgumentNullException(nameof(other));
+
             const int same = 0;
             const int curNewer = 1;
             const int curOlder = -1;