Render sidebar sections with outline groups

World Manager for Minecraft/Models/Content/LibraryIndex.swift

@@ -152,7 +152,7 @@ nonisolated struct CollectionSnapshot: Identifiable, Hashable, Sendable, Codable
     let childDirectoryCount: Int
     let fingerprint: String
 
-    var id: String { folderName }
+    var id: String { "\(folderName)::\(fingerprint)" }
 }
 
 nonisolated struct SourceSnapshot: Hashable, Sendable, Codable {

World Manager for Minecraft/Models/Sources/SourceRecord.swift

@@ -76,11 +76,19 @@ nonisolated struct SourceCandidate: Identifiable, Hashable, Sendable {
     var id: String {
         [
             providerID,
-            sourceRootURL.standardizedFileURL.absoluteString
+            sourceIdentityKey(for: sourceRootURL)
         ].joined(separator: "::")
     }
 }
 
+nonisolated func sourceIdentityKey(for url: URL) -> String {
+    if url.isFileURL {
+        return url.standardizedFileURL.resolvingSymlinksInPath().path.lowercased()
+    }
+
+    return url.standardized.absoluteString.lowercased()
+}
+
 nonisolated enum WorkStageState: String, Hashable, Sendable, Codable {
     case pending
     case running

World Manager for Minecraft/Services/AppSupport/Scanning/WorldScanner.swift

@@ -965,7 +965,7 @@ enum JavaContentScanner {
         under root: URL,
         providerID: PlatformProviderID
     ) -> [SourceCandidate] {
-        let uniqueCandidates = Dictionary(grouping: candidates, by: \.sourceRootURL).compactMap { _, groupedCandidates in
+        let uniqueCandidates = Dictionary(grouping: candidates, by: { sourceIdentityKey(for: $0.sourceRootURL) }).compactMap { _, groupedCandidates in
             groupedCandidates.max { lhs, rhs in
                 lhs.confidence < rhs.confidence
             }
@@ -1066,7 +1066,7 @@ enum JavaContentScanner {
         while !queue.isEmpty && folders.count < maxFolderCount {
             let current = queue.removeFirst()
             let normalizedURL = current.url.standardizedFileURL
-            guard seen.insert(normalizedURL.path).inserted else {
+            guard seen.insert(sourceIdentityKey(for: normalizedURL)).inserted else {
                 continue
             }
 
@@ -1121,7 +1121,7 @@ enum JavaContentScanner {
 
         for url in urls {
             let standardizedURL = url.standardizedFileURL
-            guard seen.insert(standardizedURL.path).inserted else {
+            guard seen.insert(sourceIdentityKey(for: standardizedURL)).inserted else {
                 continue
             }
 

World Manager for Minecraft/Services/Sources/Core/SourceLibrary.swift

@@ -183,9 +183,9 @@ final class SourceLibrary: ObservableObject, SourceScanSessionHosting, SourcePer
         let providerID = probe?.providerID ?? LocalFolderSourceAccess().accessorIdentifier
         let edition = probe?.edition ?? .bedrock
 
-        if sources.contains(where: { $0.id == normalizedURL }) {
-            sourceCandidates.removeAll { $0.sourceRootURL == normalizedURL }
-            updateSource(normalizedURL) { source in
+        if let existingSourceID = existingSourceID(matching: normalizedURL) {
+            sourceCandidates.removeAll { sourceIdentityKey(for: $0.sourceRootURL) == sourceIdentityKey(for: normalizedURL) }
+            updateSource(existingSourceID) { source in
                 if source.bookmarkData == nil {
                     source.bookmarkData = bookmarkData
                 }
@@ -204,8 +204,8 @@ final class SourceLibrary: ObservableObject, SourceScanSessionHosting, SourcePer
                     }
                 }
             }
-            startScan(for: normalizedURL, mode: .fullScan)
-            return normalizedURL
+            startScan(for: existingSourceID, mode: .fullScan)
+            return existingSourceID
         }
 
         var source = MinecraftSource(
@@ -224,7 +224,7 @@ final class SourceLibrary: ObservableObject, SourceScanSessionHosting, SourcePer
             source.scanDiagnostic = warning
         }
         let sourceID = addSource(source, shouldPersist: true, shouldScan: true)
-        sourceCandidates.removeAll { $0.sourceRootURL == sourceID }
+        sourceCandidates.removeAll { sourceIdentityKey(for: $0.sourceRootURL) == sourceIdentityKey(for: sourceID) }
         return sourceID
     }
 
@@ -232,8 +232,8 @@ final class SourceLibrary: ObservableObject, SourceScanSessionHosting, SourcePer
         let normalizedURL = candidate.sourceRootURL.standardizedFileURL
         let bookmarkData = securityScopedBookmarkData(for: normalizedURL)
 
-        if sources.contains(where: { $0.id == normalizedURL }) {
-            updateSource(normalizedURL) { source in
+        if let existingSourceID = existingSourceID(matching: normalizedURL) {
+            updateSource(existingSourceID) { source in
                 if source.bookmarkData == nil {
                     source.bookmarkData = bookmarkData
                 }
@@ -247,9 +247,9 @@ final class SourceLibrary: ObservableObject, SourceScanSessionHosting, SourcePer
                 source.displayName = candidate.displayName
                 source.capabilities = source.origin.defaultCapabilities
             }
-            sourceCandidates.removeAll { $0.id == candidate.id || $0.sourceRootURL == normalizedURL }
-            startScan(for: normalizedURL, mode: .fullScan)
-            return normalizedURL
+            removeSourceCandidates(matching: candidate, sourceID: existingSourceID)
+            startScan(for: existingSourceID, mode: .fullScan)
+            return existingSourceID
         }
 
         var source = MinecraftSource(
@@ -266,14 +266,14 @@ final class SourceLibrary: ObservableObject, SourceScanSessionHosting, SourcePer
         source.displayName = candidate.displayName
 
         let sourceID = addSource(source, shouldPersist: true, shouldScan: true)
-        sourceCandidates.removeAll { $0.id == candidate.id || $0.sourceRootURL == sourceID }
+        removeSourceCandidates(matching: candidate, sourceID: sourceID)
         return sourceID
     }
 
     @discardableResult
     func addSource(_ source: MinecraftSource, shouldPersist: Bool = false, shouldScan: Bool = true) -> URL {
-        if sources.contains(where: { $0.id == source.id }) {
-            updateSource(source.id) { existingSource in
+        if let existingSourceID = existingSourceID(matching: source.id) {
+            updateSource(existingSourceID) { existingSource in
                 existingSource.origin = source.origin
                 existingSource.accessDescriptor = source.accessDescriptor
                 existingSource.providerID = source.accessDescriptor.accessorIdentifier
@@ -300,13 +300,13 @@ final class SourceLibrary: ObservableObject, SourceScanSessionHosting, SourcePer
         }
 
         if shouldPersist {
-            persistSourceIfAvailable(withID: source.id)
+            persistSourceIfAvailable(withID: existingSourceID(matching: source.id) ?? source.id)
         }
         if shouldScan {
-            startScan(for: source.id, mode: .fullScan)
+            startScan(for: existingSourceID(matching: source.id) ?? source.id, mode: .fullScan)
         }
 
-        return source.id
+        return existingSourceID(matching: source.id) ?? source.id
     }
 
     func source(withID sourceID: URL) -> MinecraftSource? {
@@ -704,8 +704,26 @@ final class SourceLibrary: ObservableObject, SourceScanSessionHosting, SourcePer
 
     private func candidateAlreadyAdded(_ candidate: SourceCandidate) -> Bool {
         sources.contains { source in
-            source.id == candidate.sourceRootURL.standardizedFileURL
-                || source.folderURL == candidate.sourceRootURL.standardizedFileURL
+            sourceIdentityKey(for: source.id) == sourceIdentityKey(for: candidate.sourceRootURL)
+                || sourceIdentityKey(for: source.folderURL) == sourceIdentityKey(for: candidate.sourceRootURL)
+        }
+    }
+
+    private func existingSourceID(matching url: URL) -> URL? {
+        let identity = sourceIdentityKey(for: url)
+        return sources.first { source in
+            sourceIdentityKey(for: source.id) == identity
+                || sourceIdentityKey(for: source.folderURL) == identity
+        }?.id
+    }
+
+    private func removeSourceCandidates(matching candidate: SourceCandidate, sourceID: URL) {
+        let candidateIdentity = sourceIdentityKey(for: candidate.sourceRootURL)
+        let sourceIdentity = sourceIdentityKey(for: sourceID)
+        sourceCandidates.removeAll {
+            $0.id == candidate.id
+                || sourceIdentityKey(for: $0.sourceRootURL) == candidateIdentity
+                || sourceIdentityKey(for: $0.sourceRootURL) == sourceIdentity
         }
     }
 

World Manager for Minecraft/Services/Sources/Persistence/SourceRestoration.swift

@@ -214,20 +214,18 @@ enum SourceRestoration {
         _ currentCollections: [CollectionSnapshot],
         persistedCollections: [CollectionSnapshot]
     ) -> Bool {
-        let currentCollectionsByName = Dictionary(
-            uniqueKeysWithValues: currentCollections.map { ($0.folderName, $0) }
-        )
-        let persistedCollectionsByName = Dictionary(
-            uniqueKeysWithValues: persistedCollections.map { ($0.folderName, $0) }
-        )
+        let currentCollectionsByName = Dictionary(grouping: currentCollections, by: \.folderName)
+            .mapValues { $0.map(\.fingerprint).sorted() }
+        let persistedCollectionsByName = Dictionary(grouping: persistedCollections, by: \.folderName)
+            .mapValues { $0.map(\.fingerprint).sorted() }
 
         if currentCollectionsByName.count != persistedCollectionsByName.count {
             return true
         }
 
-        for (folderName, persistedCollection) in persistedCollectionsByName {
-            guard let currentCollection = currentCollectionsByName[folderName],
-                  currentCollection.fingerprint == persistedCollection.fingerprint else {
+        for (folderName, persistedFingerprints) in persistedCollectionsByName {
+            guard let currentFingerprints = currentCollectionsByName[folderName],
+                  currentFingerprints == persistedFingerprints else {
                 return true
             }
         }

World Manager for Minecraft/UI/Sidebar/SidebarColumnViews.swift

@@ -29,6 +29,21 @@ struct SidebarFilter: Identifiable, Hashable {
     let selection: SidebarSelection
 }
 
+private struct SidebarNode: Identifiable, Hashable {
+    let id: SidebarSelection
+    let row: SidebarNodeRow
+    let children: [SidebarNode]?
+
+    var selection: SidebarSelection { id }
+}
+
+private enum SidebarNodeRow: Hashable {
+    case source(MinecraftSource)
+    case filter(SidebarFilter)
+    case connectedDevice(ConnectedDeviceSidebarEntry)
+    case sourceCandidate(SourceCandidate)
+}
+
 struct SourcesSidebarView: View {
     let sources: [MinecraftSource]
     let connectedDevices: [ConnectedDeviceSidebarEntry]
@@ -46,42 +61,25 @@ struct SourcesSidebarView: View {
 
     var body: some View {
         List(selection: $selection) {
-            if !sources.isEmpty {
+            if !libraryNodes.isEmpty {
                 Section {
-                    ForEach(sources) { source in
-                        sourceSectionRows(for: source)
-                    }
+                    OutlineGroup(libraryNodes, children: \.children, content: sidebarNodeRow)
                 } header: {
                     SidebarSourcesSectionHeaderView(title: "Libraries")
                 }
             }
 
-            if !connectedDevices.isEmpty {
+            if !deviceNodes.isEmpty {
                 Section {
-                    ForEach(connectedDevices) { entry in
-                        connectedDeviceSectionRows(for: entry)
-                    }
+                    OutlineGroup(deviceNodes, children: \.children, content: sidebarNodeRow)
                 } header: {
                     SidebarSourcesSectionHeaderView(title: "Available Devices")
                 }
             }
 
-            if !sourceCandidates.isEmpty {
+            if !candidateNodes.isEmpty {
                 Section {
-                    ForEach(sourceCandidates) { candidate in
-                        SourceCandidateRow(
-                            candidate: candidate,
-                            onSelect: {
-                                selection = .sourceCandidate(candidateID: candidate.id)
-                            },
-                            addAction: {
-                                addCandidateSourceAction(candidate)
-                            }
-                        )
-                        .tag(SidebarSelection.sourceCandidate(candidateID: candidate.id) as SidebarSelection?)
-                        .listRowSeparator(.hidden)
-                        .listRowInsets(EdgeInsets(top: 4, leading: 8, bottom: 4, trailing: 8))
-                    }
+                    OutlineGroup(candidateNodes, children: \.children, content: sidebarNodeRow)
                 } header: {
                     SidebarSourcesSectionHeaderView(title: "Found Sources")
                 }
@@ -118,57 +116,92 @@ struct SourcesSidebarView: View {
         }
     }
 
-    @ViewBuilder
-    private func sourceSectionRows(for source: MinecraftSource) -> some View {
-        let sourceFilters = filters(source)
-
-        SourceHeaderRow(
-            source: source,
-            onSelect: {
-                selection = .source(sourceID: source.id)
-            }
-        )
-            .tag(SidebarSelection.source(sourceID: source.id) as SidebarSelection?)
-            .listRowSeparator(.hidden)
-            .listRowInsets(EdgeInsets(top: 6, leading: 0, bottom: 0, trailing: 0))
-            .contextMenu {
-                Button("Rescan \"\(source.displayName)\"") {
-                    rescanSourceAction(source)
-                }
-
-                Divider()
-
-                Button("Remove \"\(source.displayName)\"", role: .destructive) {
-                    removeSourceAction(source)
-                }
+    private var libraryNodes: [SidebarNode] {
+        sources.map { source in
+            let childNodes = filters(source).map { filter in
+                SidebarNode(
+                    id: filter.selection,
+                    row: .filter(filter),
+                    children: nil
+                )
             }
 
-        ForEach(sourceFilters) { filter in
-            SidebarFilterRow(filter: filter, isIndented: true)
-                .tag(filter.selection as SidebarSelection?)
+            return SidebarNode(
+                id: .source(sourceID: source.id),
+                row: .source(source),
+                children: childNodes.isEmpty ? nil : childNodes
+            )
+        }
+    }
+
+    private var deviceNodes: [SidebarNode] {
+        connectedDevices.map { entry in
+            SidebarNode(
+                id: .connectedDevice(deviceID: entry.id),
+                row: .connectedDevice(entry),
+                children: nil
+            )
+        }
+    }
+
+    private var candidateNodes: [SidebarNode] {
+        sourceCandidates.map { candidate in
+            SidebarNode(
+                id: .sourceCandidate(candidateID: candidate.id),
+                row: .sourceCandidate(candidate),
+                children: nil
+            )
         }
     }
 
     @ViewBuilder
-    private func connectedDeviceSectionRows(for entry: ConnectedDeviceSidebarEntry) -> some View {
-        ConnectedDeviceRow(
-            entry: entry,
-            onSelect: {
-                selection = .connectedDevice(deviceID: entry.id)
-            },
-            addAction: entry.hasMinecraftContainer ? {
-                addConnectedDeviceAction(entry)
-            } : nil
-        )
-        .tag(SidebarSelection.connectedDevice(deviceID: entry.id) as SidebarSelection?)
-        .listRowSeparator(.hidden)
-        .listRowInsets(EdgeInsets(top: 6, leading: 8, bottom: 0, trailing: 8))
+    private func sidebarNodeRow(_ node: SidebarNode) -> some View {
+        switch node.row {
+        case .source(let source):
+            SourceHeaderRow(source: source)
+                .tag(node.selection as SidebarSelection?)
+                .listRowSeparator(.hidden)
+                .listRowInsets(EdgeInsets(top: 4, leading: 8, bottom: 4, trailing: 8))
+                .contextMenu {
+                    Button("Rescan \"\(source.displayName)\"") {
+                        rescanSourceAction(source)
+                    }
+
+                    Divider()
+
+                    Button("Remove \"\(source.displayName)\"", role: .destructive) {
+                        removeSourceAction(source)
+                    }
+                }
+        case .filter(let filter):
+            SidebarFilterRow(filter: filter)
+                .tag(node.selection as SidebarSelection?)
+        case .connectedDevice(let entry):
+            ConnectedDeviceRow(
+                entry: entry,
+                addAction: entry.hasMinecraftContainer ? {
+                    addConnectedDeviceAction(entry)
+                } : nil
+            )
+            .tag(node.selection as SidebarSelection?)
+            .listRowSeparator(.hidden)
+            .listRowInsets(EdgeInsets(top: 6, leading: 8, bottom: 0, trailing: 8))
+        case .sourceCandidate(let candidate):
+            SourceCandidateRow(
+                candidate: candidate,
+                addAction: {
+                    addCandidateSourceAction(candidate)
+                }
+            )
+            .tag(node.selection as SidebarSelection?)
+            .listRowSeparator(.hidden)
+            .listRowInsets(EdgeInsets(top: 4, leading: 8, bottom: 4, trailing: 8))
+        }
     }
 }
 
 private struct SourceCandidateRow: View {
     let candidate: SourceCandidate
-    let onSelect: () -> Void
     let addAction: () -> Void
 
     var body: some View {
@@ -195,8 +228,6 @@ private struct SourceCandidateRow: View {
             .appMiniProminentButton()
             .help("Add Source")
         }
-        .contentShape(Rectangle())
-        .onTapGesture(perform: onSelect)
         .padding(.vertical, 4)
     }
 
@@ -217,7 +248,6 @@ private struct SourceCandidateRow: View {
 
 private struct SidebarFilterRow: View {
     let filter: SidebarFilter
-    let isIndented: Bool
 
     var body: some View {
         HStack(spacing: 10) {
@@ -232,7 +262,6 @@ private struct SidebarFilterRow: View {
             Text(filter.count, format: .number)
                 .foregroundStyle(.secondary)
         }
-        .padding(.leading, isIndented ? 16 : 0)
     }
 }
 
@@ -246,7 +275,6 @@ private struct SidebarSourcesSectionHeaderView: View {
 
 private struct SourceHeaderRow: View {
     let source: MinecraftSource
-    let onSelect: () -> Void
 
     var body: some View {
         HStack(spacing: 8) {
@@ -273,10 +301,8 @@ private struct SourceHeaderRow: View {
             }
         }
         .frame(maxWidth: .infinity, alignment: .leading)
-        .padding(.leading, 5)
-        .padding(.vertical, 6)
-        .contentShape(Rectangle())
-        .onTapGesture(perform: onSelect)
+        .padding(.horizontal, 8)
+        .padding(.vertical, 5)
     }
 
     private var connection: DeviceConnection? {
@@ -400,7 +426,6 @@ private struct CircularScanProgressView: View {
 
 private struct ConnectedDeviceRow: View {
     let entry: ConnectedDeviceSidebarEntry
-    let onSelect: () -> Void
     let addAction: (() -> Void)?
 
     var body: some View {
@@ -430,8 +455,6 @@ private struct ConnectedDeviceRow: View {
             }
         }
         .opacity(addAction == nil ? 0.68 : 1)
-        .contentShape(Rectangle())
-        .onTapGesture(perform: onSelect)
     }
 
     private var iconName: String {

World Manager for MinecraftTests/World_Manager_for_MinecraftTests.swift

@@ -385,6 +385,36 @@ struct World_Manager_for_MinecraftTests {
         #expect(candidates.first?.detectedKinds.contains(.mod) == true)
     }
 
+    @Test func javaProviderDeduplicatesCaseVariantSourceRoots() async throws {
+        let fileManager = FileManager.default
+        let workingURL = fileManager.temporaryDirectory.appendingPathComponent(UUID().uuidString, isDirectory: true)
+        let upperRootURL = workingURL.appendingPathComponent("CurseForge/Minecraft", isDirectory: true)
+        let lowerRootURL = workingURL.appendingPathComponent("curseforge/minecraft", isDirectory: true)
+        let firstInstanceURL = upperRootURL.appendingPathComponent("Instances/ExampleOne", isDirectory: true)
+        let secondInstanceURL = upperRootURL.appendingPathComponent("Instances/ExampleTwo", isDirectory: true)
+        defer { try? fileManager.removeItem(at: workingURL) }
+
+        for instanceURL in [firstInstanceURL, secondInstanceURL] {
+            try fileManager.createDirectory(
+                at: instanceURL.appendingPathComponent("mods", isDirectory: true),
+                withIntermediateDirectories: true
+            )
+            try Data("jar".utf8).write(to: instanceURL.appendingPathComponent("mods/ExampleMod.jar"))
+        }
+
+        guard fileManager.fileExists(atPath: lowerRootURL.path) else {
+            return
+        }
+
+        let candidates = JavaContentScanner.discoverSourceCandidates(
+            providerID: JavaLocalFolderSourceAccess().accessorIdentifier,
+            searchRoots: [upperRootURL, lowerRootURL]
+        )
+
+        #expect(candidates.count == 1)
+        #expect(sourceIdentityKey(for: candidates[0].sourceRootURL) == sourceIdentityKey(for: upperRootURL))
+    }
+
     @Test func javaAggregateRootDiscoversNestedInstanceItems() async throws {
         let fileManager = FileManager.default
         let workingURL = fileManager.temporaryDirectory.appendingPathComponent(UUID().uuidString, isDirectory: true)
@@ -413,6 +443,60 @@ struct World_Manager_for_MinecraftTests {
         #expect(snapshots.map(\.folderName).contains("a/e/f/resourcepacks"))
     }
 
+    @Test func sourceRestorationComparesDuplicateCollectionNamesWithoutCrashing() async throws {
+        let fileManager = FileManager.default
+        let workingURL = fileManager.temporaryDirectory.appendingPathComponent(UUID().uuidString, isDirectory: true)
+        defer { try? fileManager.removeItem(at: workingURL) }
+        try fileManager.createDirectory(at: workingURL, withIntermediateDirectories: true)
+
+        let collectionSnapshots = [
+            CollectionSnapshot(
+                folderName: "mods",
+                modifiedDate: Date(timeIntervalSince1970: 100),
+                childDirectoryCount: 1,
+                fingerprint: "a/b/c/mods::1::100"
+            ),
+            CollectionSnapshot(
+                folderName: "mods",
+                modifiedDate: Date(timeIntervalSince1970: 200),
+                childDirectoryCount: 2,
+                fingerprint: "x/y/z/mods::2::200"
+            )
+        ]
+        var source = MinecraftSource(
+            folderURL: workingURL,
+            origin: .javaLocalFolder(bookmarkData: nil),
+            accessDescriptor: SourceAccessDescriptor(
+                accessorIdentifier: JavaLocalFolderSourceAccess().accessorIdentifier,
+                kind: .localFolder,
+                refreshStrategy: .eagerFullScan
+            ),
+            availability: .available
+        )
+        source.edition = .java
+        source.snapshot = SourceSnapshot(
+            sourceID: workingURL,
+            rootModifiedDate: nil,
+            collectionSnapshots: collectionSnapshots,
+            itemSnapshots: []
+        )
+
+        #expect(SourceRestoration.needsReconcile(source) { _, _ in collectionSnapshots } == false)
+        #expect(
+            SourceRestoration.needsReconcile(source) { _, _ in
+                [
+                    collectionSnapshots[0],
+                    CollectionSnapshot(
+                        folderName: "mods",
+                        modifiedDate: Date(timeIntervalSince1970: 300),
+                        childDirectoryCount: 3,
+                        fingerprint: "x/y/z/mods::3::300"
+                    )
+                ]
+            } == true
+        )
+    }
+
     @Test func sourceLibraryAddSourceCandidatePreservesJavaAggregateProvider() async throws {
         let fileManager = FileManager.default
         let workingURL = fileManager.temporaryDirectory.appendingPathComponent(UUID().uuidString, isDirectory: true)