1 files changed, 10 insertions, 13 deletions
diff --git a/src/SMAPI/Framework/ModLoading/ModResolver.cs b/src/SMAPI/Framework/ModLoading/ModResolver.cs
index afb388d0..74e7cb32 100644
--- a/src/SMAPI/Framework/ModLoading/ModResolver.cs
+++ b/src/SMAPI/Framework/ModLoading/ModResolver.cs
@@ -56,9 +56,10 @@ namespace StardewModdingAPI.Framework.ModLoading
         /// <param name="mods">The mod manifests to validate.</param>
         /// <param name="apiVersion">The current SMAPI version.</param>
         /// <param name="getUpdateUrl">Get an update URL for an update key (if valid).</param>
+        /// <param name="validateFilesExist">Whether to validate that files referenced in the manifest (like <see cref="IManifest.EntryDll"/>) exist on disk. This can be disabled to only validate the manifest itself.</param>
         [SuppressMessage("ReSharper", "ConstantConditionalAccessQualifier", Justification = "Manifest values may be null before they're validated.")]
         [SuppressMessage("ReSharper", "ConditionIsAlwaysTrueOrFalse", Justification = "Manifest values may be null before they're validated.")]
-        public void ValidateManifests(IEnumerable<IModMetadata> mods, ISemanticVersion apiVersion, Func<string, string?> getUpdateUrl)
+        public void ValidateManifests(IEnumerable<IModMetadata> mods, ISemanticVersion apiVersion, Func<string, string?> getUpdateUrl, bool validateFilesExist = true)
         {
             mods = mods.ToArray();
 
@@ -140,19 +141,15 @@ namespace StardewModdingAPI.Framework.ModLoading
                             continue;
                         }
 
-                        // invalid path
-                        if (!File.Exists(Path.Combine(mod.DirectoryPath, mod.Manifest.EntryDll!)))
+                        // file doesn't exist
+                        if (validateFilesExist)
                         {
-                            mod.SetStatus(ModMetadataStatus.Failed, ModFailReason.InvalidManifest, $"its DLL '{mod.Manifest.EntryDll}' doesn't exist.");
-                            continue;
-                        }
-
-                        // invalid capitalization
-                        string? actualFilename = new DirectoryInfo(mod.DirectoryPath).GetFiles(mod.Manifest.EntryDll!).FirstOrDefault()?.Name;
-                        if (actualFilename != mod.Manifest.EntryDll)
-                        {
-                            mod.SetStatus(ModMetadataStatus.Failed, ModFailReason.InvalidManifest, $"its {nameof(IManifest.EntryDll)} value '{mod.Manifest.EntryDll}' doesn't match the actual file capitalization '{actualFilename}'. The capitalization must match for crossplatform compatibility.");
-                            continue;
+                            string fileName = CaseInsensitivePathLookup.GetCachedFor(mod.DirectoryPath).GetFilePath(mod.Manifest.EntryDll!);
+                            if (!File.Exists(Path.Combine(mod.DirectoryPath, fileName)))
+                            {
+                                mod.SetStatus(ModMetadataStatus.Failed, ModFailReason.InvalidManifest, $"its DLL '{mod.Manifest.EntryDll}' doesn't exist.");
+                                continue;
+                            }
                         }
                     }