fix(connection-form): show the right default socket path per database type (#1902)

CHANGELOG.md

@@ -40,6 +40,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed the query result row cap returning a single row when it was set to unlimited. (#1884)
 - Fixed SSH tunnels that could accept a database connection and then go quiet instead of forwarding it or failing, which showed up as MySQL and MariaDB connections timing out while reading the server greeting. A tunnel that cannot open its forwarding channel now gives up after 10 seconds, closes the connection, and logs the reason, instead of leaving the driver to wait out its own timeout with no explanation. (#1883)
 - Fixed connections being reset when a single database session opened several at once through one SSH tunnel, which could happen while browsing schemas. (#1883)
+- Fixed the connection form's SSH tunnel Socket Path hint always showing the PostgreSQL socket path. It now shows the right default for the database type, such as `/var/run/mysqld/mysqld.sock` for MySQL and MariaDB. (#1902)
 - Per-column display formats (Display As) are now kept per table, so two tables with the same name in different databases or schemas no longer share formatting.
 - Reopening a table now restores a saved filter's AND/OR match mode, instead of always resetting it to AND.
 

TablePro/Core/Plugins/PluginManager+Registration.swift

@@ -397,6 +397,11 @@ extension PluginManager {
             .schema.containerEntityName ?? "Database"
     }
 
+    func defaultUnixSocketPath(for databaseType: DatabaseType) -> String? {
+        PluginMetadataRegistry.shared.snapshot(forTypeId: databaseType.pluginTypeId)?
+            .connection.defaultUnixSocketPath
+    }
+
     func containerEntityNamePlural(for databaseType: DatabaseType) -> String {
         containerEntityName(for: databaseType) + "s"
     }

TablePro/Core/Plugins/PluginMetadataRegistry+RegistryDefaults.swift

@@ -152,7 +152,8 @@ extension PluginMetadataRegistry {
                         )
                     ],
                     category: .keyValue,
-                    tagline: String(localized: "In-memory data store and cache")
+                    tagline: String(localized: "In-memory data store and cache"),
+                    defaultUnixSocketPath: "/var/run/redis/redis.sock"
                 )
             )),
             ("SQL Server", PluginMetadataSnapshot(

TablePro/Core/Plugins/PluginMetadataRegistry.swift

@@ -171,17 +171,20 @@ struct PluginMetadataSnapshot: Sendable {
         let category: DatabaseCategory
         let tagline: String
         let hidesBuiltInPassword: Bool
+        let defaultUnixSocketPath: String?
 
         init(
             additionalConnectionFields: [ConnectionField] = [],
             category: DatabaseCategory = .other,
             tagline: String = "",
-            hidesBuiltInPassword: Bool = false
+            hidesBuiltInPassword: Bool = false,
+            defaultUnixSocketPath: String? = nil
         ) {
             self.additionalConnectionFields = additionalConnectionFields
             self.category = category
             self.tagline = tagline
             self.hidesBuiltInPassword = hidesBuiltInPassword
+            self.defaultUnixSocketPath = defaultUnixSocketPath
         }
 
         static let defaults = ConnectionConfig()
@@ -543,7 +546,8 @@ final class PluginMetadataRegistry: @unchecked Sendable {
                 connection: PluginMetadataSnapshot.ConnectionConfig(
                     additionalConnectionFields: awsIAMFields,
                     category: .relational,
-                    tagline: String(localized: "Most popular open-source SQL database")
+                    tagline: String(localized: "Most popular open-source SQL database"),
+                    defaultUnixSocketPath: "/var/run/mysqld/mysqld.sock"
                 )
             )),
             ("MariaDB", PluginMetadataSnapshot(
@@ -594,7 +598,8 @@ final class PluginMetadataRegistry: @unchecked Sendable {
                 connection: PluginMetadataSnapshot.ConnectionConfig(
                     additionalConnectionFields: awsIAMFields,
                     category: .relational,
-                    tagline: String(localized: "Open-source fork of MySQL")
+                    tagline: String(localized: "Open-source fork of MySQL"),
+                    defaultUnixSocketPath: "/var/run/mysqld/mysqld.sock"
                 )
             )),
             ("PostgreSQL", PluginMetadataSnapshot(
@@ -646,7 +651,8 @@ final class PluginMetadataRegistry: @unchecked Sendable {
                 connection: PluginMetadataSnapshot.ConnectionConfig(
                     additionalConnectionFields: [pgpassField, connectionOptionsField] + awsIAMFields,
                     category: .relational,
-                    tagline: String(localized: "Advanced object-relational SQL")
+                    tagline: String(localized: "Advanced object-relational SQL"),
+                    defaultUnixSocketPath: "/var/run/postgresql/.s.PGSQL.5432"
                 )
             )),
             ("Redshift", PluginMetadataSnapshot(
@@ -1023,7 +1029,8 @@ final class PluginMetadataRegistry: @unchecked Sendable {
                     ?? Self.fallbackCategory(forTypeId: driverType.databaseTypeId),
                 tagline: existingSnapshot?.connection.tagline
                     ?? Self.fallbackTagline(forTypeId: driverType.databaseTypeId),
-                hidesBuiltInPassword: existingSnapshot?.connection.hidesBuiltInPassword ?? false
+                hidesBuiltInPassword: existingSnapshot?.connection.hidesBuiltInPassword ?? false,
+                defaultUnixSocketPath: existingSnapshot?.connection.defaultUnixSocketPath
             )
         )
     }

TablePro/Views/ConnectionForm/Panes/GeneralPaneView.swift

@@ -174,7 +174,7 @@ struct GeneralPaneView: View {
         TextField(
             String(localized: "Socket Path"),
             text: $coordinator.network.sshForwardUnixSocketPath,
-            prompt: Text(verbatim: "/var/run/postgresql/.s.PGSQL.5432")
+            prompt: Text(verbatim: coordinator.network.socketPathPrompt)
         )
         switch coordinator.network.socketPathIssue {
         case .notAbsolute:

TablePro/Views/ConnectionForm/ViewModels/NetworkPaneViewModel.swift

@@ -44,6 +44,10 @@ final class NetworkPaneViewModel {
         return port == 0 ? "" : String(port)
     }
 
+    var socketPathPrompt: String {
+        PluginManager.shared.defaultUnixSocketPath(for: type) ?? "/path/to/database.sock"
+    }
+
     var resolvedHost: String {
         host.trimmingCharacters(in: .whitespaces).isEmpty ? "localhost" : host
     }

TableProTests/Core/Plugins/SocketPathPlaceholderTests.swift

@@ -0,0 +1,41 @@
+//
+//  SocketPathPlaceholderTests.swift
+//  TableProTests
+//
+
+import Foundation
+@testable import TablePro
+import TableProPluginKit
+import Testing
+
+@MainActor
+@Suite("Default Unix socket path per database type")
+struct SocketPathPlaceholderTests {
+    @Test("MySQL and MariaDB use the mysqld socket")
+    func mysqlFamilyUsesMysqldSocket() {
+        #expect(PluginManager.shared.defaultUnixSocketPath(for: .mysql) == "/var/run/mysqld/mysqld.sock")
+        #expect(PluginManager.shared.defaultUnixSocketPath(for: .mariadb) == "/var/run/mysqld/mysqld.sock")
+    }
+
+    @Test("PostgreSQL uses the PGSQL socket")
+    func postgresqlUsesPgsqlSocket() {
+        #expect(PluginManager.shared.defaultUnixSocketPath(for: .postgresql) == "/var/run/postgresql/.s.PGSQL.5432")
+    }
+
+    @Test("Redis uses the redis socket")
+    func redisUsesRedisSocket() {
+        #expect(PluginManager.shared.defaultUnixSocketPath(for: .redis) == "/var/run/redis/redis.sock")
+    }
+
+    @Test("Types without a socket convention have no default")
+    func typesWithoutSocketHaveNoDefault() {
+        #expect(PluginManager.shared.defaultUnixSocketPath(for: .sqlite) == nil)
+        #expect(PluginManager.shared.defaultUnixSocketPath(for: .clickhouse) == nil)
+    }
+
+    @Test("Unknown type has no default")
+    func unknownTypeHasNoDefault() {
+        let unknown = DatabaseType(rawValue: "FuturePlugin")
+        #expect(PluginManager.shared.defaultUnixSocketPath(for: unknown) == nil)
+    }
+}

TableProTests/Views/ConnectionForm/NetworkPaneSocketForwardTests.swift

@@ -70,4 +70,23 @@ struct NetworkPaneSocketForwardTests {
         #expect(fields[DatabaseConnection.sshForwardUnixSocketPathKey] == nil)
         #expect(viewModel.forwardsToUnixSocket == false)
     }
+
+    @Test("The socket path prompt follows the database type")
+    func socketPromptFollowsType() {
+        let viewModel = NetworkPaneViewModel()
+
+        viewModel.type = .mysql
+        #expect(viewModel.socketPathPrompt == "/var/run/mysqld/mysqld.sock")
+
+        viewModel.type = .postgresql
+        #expect(viewModel.socketPathPrompt == "/var/run/postgresql/.s.PGSQL.5432")
+    }
+
+    @Test("A type without a socket convention falls back to a generic prompt")
+    func socketPromptFallsBackForSocketlessType() {
+        let viewModel = NetworkPaneViewModel()
+        viewModel.type = .clickhouse
+
+        #expect(viewModel.socketPathPrompt == "/path/to/database.sock")
+    }
 }