Drop GitHub Copilot language server to 1.44.0

Author: intitni

Core/Sources/HostApp/AccountSettings/GitHubCopilotView.swift

@@ -158,7 +158,7 @@ struct GitHubCopilotView: View {
                                 "node"
                             )
                         ) {
-                            Text("Path to Node (v18+)")
+                            Text("Path to Node (v20.8+)")
                         }
 
                         Text(
@@ -261,21 +261,20 @@ struct GitHubCopilotView: View {
                         if isRunningAction {
                             ActivityIndicatorView()
                         }
-                    }
+                    } 
                     .opacity(isRunningAction ? 0.8 : 1)
                     .disabled(isRunningAction)
 
                     Button("Refresh configurations") {
                         refreshConfiguration()
                     }
 
-                    // Not available yet
-//                    Form {
-//                        GitHubCopilotModelPicker(
-//                            title: "Chat Model Name",
-//                            gitHubCopilotModelId: $settings.gitHubCopilotModelId
-//                        )
-//                    }
+                    Form {
+                        GitHubCopilotModelPicker(
+                            title: "Chat Model Name",
+                            gitHubCopilotModelId: $settings.gitHubCopilotModelId
+                        )
+                    }
                 }
 
                 SettingsDivider("Advanced")

Tool/Sources/GitHubCopilotService/LanguageServer/GitHubCopilotInstallationManager.swift

@@ -6,12 +6,12 @@ public struct GitHubCopilotInstallationManager {
     public private(set) static var isInstalling = false
 
     static var downloadURL: URL {
-        let commitHash = "87038123804796ca7af20d1b71c3428d858a9124"
+        let commitHash = "a9228e015528c9307890c48083c925eb98a64a79"
         let link = "https://github.com/github/copilot.vim/archive/\(commitHash).zip"
         return URL(string: link)!
     }
 
-    static let latestSupportedVersion = "1.48.0"
+    static let latestSupportedVersion = "1.44.0"
     static let minimumSupportedVersion = "1.32.0"
 
     public init() {}

Tool/Sources/GitHubCopilotService/LanguageServer/GitHubCopilotService.swift

@@ -1,6 +1,7 @@
 import AppKit
 import enum CopilotForXcodeKit.SuggestionServiceError
 import Foundation
+import JSONRPC
 import LanguageClient
 import LanguageServerProtocol
 import Logger
@@ -133,6 +134,9 @@ public class GitHubCopilotBaseService {
             let urls = try GitHubCopilotBaseService.createFoldersIfNeeded()
             let executionParams: Process.ExecutionParameters
             let runner = UserDefaults.shared.value(for: \.runNodeWith)
+            let watchedFiles = JSONValue(
+                booleanLiteral: projectRootURL.path == "/" ? false : true
+            )
 
             guard let agentJSURL = { () -> URL? in
                 let languageServerDotJS = urls.executableURL
@@ -148,7 +152,7 @@ public class GitHubCopilotBaseService {
             }() else {
                 throw GitHubCopilotError.languageServerNotInstalled
             }
-
+            
             let indexJSURL: URL = try {
                 if UserDefaults.shared.value(for: \.gitHubCopilotLoadKeyChainCertificates) {
                     let url = urls.executableURL
@@ -244,6 +248,8 @@ public class GitHubCopilotBaseService {
                     experimental: nil
                 )
 
+                let pretendToBeVSCode = UserDefaults.shared
+                    .value(for: \.gitHubCopilotPretendIDEToBeVSCode)
                 return InitializeParams(
                     processId: Int(ProcessInfo.processInfo.processIdentifier),
                     clientInfo: .init(
@@ -254,7 +260,24 @@ public class GitHubCopilotBaseService {
                     locale: nil,
                     rootPath: projectRootURL.path,
                     rootUri: projectRootURL.path,
-                    initializationOptions: nil,
+                    initializationOptions: [
+                        "editorInfo": pretendToBeVSCode ? .hash([
+                            "name": "vscode",
+                            "version": "1.99.3",
+                        ]) : .hash([
+                            "name": "Xcode",
+                            "version": .string(xcodeVersion() ?? "16.0"),
+                        ]),
+                        "editorPluginInfo": .hash([
+                            "name": "Copilot for Xcode",
+                            "version": .string(Bundle.main
+                                .infoDictionary?["CFBundleShortVersionString"] as? String ?? ""),
+                        ]),
+                        "copilotCapabilities": [
+                            /// The editor has support for watching files over LSP
+                            "watchedFiles": watchedFiles,
+                        ]
+                    ],
                     capabilities: capabilities,
                     trace: .off,
                     workspaceFolders: [WorkspaceFolder(
@@ -632,7 +655,7 @@ extension InitializingServer: GitHubCopilotLSP {
     }
 }
 
-private func xcodeVersion() async -> String? {
+private func xcodeVersion() -> String? {
     let process = Process()
     process.executableURL = URL(fileURLWithPath: "/usr/bin/xcrun")
     process.arguments = ["xcodebuild", "-version"]