fix(plugins): register all SQLite file extensions end-to-end (#1327)

CHANGELOG.md

@@ -20,6 +20,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - DuckDB schema reads handle apostrophes and concurrent schema switches correctly
 - DuckDB ENUMs in non-`main` schemas resolve correctly
 - DuckDB `DATE` and `TIMESTAMP` BC years use a leading minus
+- `.db`, `.db3`, `.s3db`, `.sl3`, and `.sqlitedb` files now open in TablePro from Finder (#1327)
 
 ## [0.43.0] - 2026-05-18
 

Plugins/SQLiteDriverPlugin/SQLitePlugin.swift

@@ -32,7 +32,7 @@ final class SQLitePlugin: NSObject, TableProPlugin, DriverPlugin {
     static let pathFieldRole: PathFieldRole = .filePath
     static let connectionMode: ConnectionMode = .fileBased
     static let urlSchemes: [String] = ["sqlite"]
-    static let fileExtensions: [String] = ["db", "sqlite", "sqlite3"]
+    static let fileExtensions: [String] = ["db", "db3", "s3db", "sl3", "sqlite", "sqlite3", "sqlitedb"]
     static let brandColorHex = "#003B57"
     static let supportsDatabaseSwitching = false
     static let databaseGroupingStrategy: GroupingStrategy = .flat

TablePro/Core/Plugins/PluginMetadataRegistry.swift

@@ -709,7 +709,7 @@ final class PluginMetadataRegistry: @unchecked Sendable {
                     immutableColumns: [],
                     systemDatabaseNames: [],
                     systemSchemaNames: [],
-                    fileExtensions: ["db", "sqlite", "sqlite3"],
+                    fileExtensions: ["db", "db3", "s3db", "sl3", "sqlite", "sqlite3", "sqlitedb"],
                     databaseGroupingStrategy: .flat,
                     structureColumnFields: [.name, .type, .nullable, .defaultValue, .autoIncrement, .comment]
                 ),

TablePro/Info.plist

@@ -50,19 +50,20 @@
 		<dict>
 			<key>CFBundleTypeExtensions</key>
 			<array>
-				<string>sqlite</string>
-				<string>sqlite3</string>
+				<string>db</string>
 				<string>db3</string>
 				<string>s3db</string>
 				<string>sl3</string>
+				<string>sqlite</string>
+				<string>sqlite3</string>
 				<string>sqlitedb</string>
 			</array>
 			<key>CFBundleTypeName</key>
 			<string>SQLite Database</string>
 			<key>CFBundleTypeRole</key>
 			<string>Editor</string>
 			<key>LSHandlerRank</key>
-			<string>Default</string>
+			<string>Alternate</string>
 			<key>LSItemContentTypes</key>
 			<array>
 				<string>com.apple.sqlite3</string>
@@ -172,11 +173,12 @@
 			<dict>
 				<key>public.filename-extension</key>
 				<array>
-					<string>sqlite</string>
-					<string>sqlite3</string>
+					<string>db</string>
 					<string>db3</string>
 					<string>s3db</string>
 					<string>sl3</string>
+					<string>sqlite</string>
+					<string>sqlite3</string>
 					<string>sqlitedb</string>
 				</array>
 			</dict>

TableProMobile/TableProMobile/Views/ConnectionFormView.swift

@@ -385,6 +385,7 @@ struct ConnectionFormView: View {
     // MARK: - Helpers
 
     private var sqliteContentTypes: [UTType] {
-        [UTType.database, UTType(filenameExtension: "sqlite3") ?? .data, .data]
+        let extensions = ["db", "db3", "s3db", "sl3", "sqlite", "sqlite3", "sqlitedb"]
+        return [UTType.database] + extensions.compactMap { UTType(filenameExtension: $0) } + [.data]
     }
 }

TableProTests/Plugins/SQLiteFileExtensionsTests.swift

@@ -0,0 +1,28 @@
+//
+//  SQLiteFileExtensionsTests.swift
+//  TableProTests
+//
+
+import Foundation
+@testable import TablePro
+import Testing
+
+@MainActor
+@Suite("SQLite file extension registration")
+struct SQLiteFileExtensionsTests {
+    private static let canonical: [String] = ["db", "db3", "s3db", "sl3", "sqlite", "sqlite3", "sqlitedb"]
+
+    @Test("Plugin metadata registry exposes the canonical SQLite extensions")
+    func registryHasCanonicalExtensions() throws {
+        let snapshot = try #require(PluginMetadataRegistry.shared.snapshot(forTypeId: "SQLite"))
+        #expect(snapshot.schema.fileExtensions.sorted() == Self.canonical.sorted())
+    }
+
+    @Test("URLClassifier resolves every canonical extension to the SQLite database type")
+    func urlClassifierResolvesEveryExtension() {
+        let extensionMap = PluginManager.shared.allRegisteredFileExtensions
+        for ext in Self.canonical {
+            #expect(extensionMap[ext] != nil, "extension \(ext) is not registered")
+        }
+    }
+}