microsoft/vscode-react-native
Publicmirrored fromhttps://github.com/microsoft/vscode-react-nativeAvailable
src/debugger/nodeDebugWrapper.ts
249lines · modecode
| 1 | // Copyright (c) Microsoft Corporation. All rights reserved. |
| 2 | // Licensed under the MIT license. See LICENSE file in the project root for details. |
| 3 | |
| 4 | import * as Q from "q"; |
| 5 | import * as path from "path"; |
| 6 | import * as fs from "fs"; |
| 7 | import stripJsonComments = require("strip-json-comments"); |
| 8 | |
| 9 | import {Telemetry} from "../common/telemetry"; |
| 10 | import {TelemetryHelper} from "../common/telemetryHelper"; |
| 11 | import {RemoteExtension} from "../common/remoteExtension"; |
| 12 | import {IOSPlatform} from "./ios/iOSPlatform"; |
| 13 | import {PlatformResolver} from "./platformResolver"; |
| 14 | import {IRunOptions} from "../common/launchArgs"; |
| 15 | import {TargetPlatformHelper} from "../common/targetPlatformHelper"; |
| 16 | import {ExtensionTelemetryReporter, ReassignableTelemetryReporter} from "../common/telemetryReporters"; |
| 17 | import {NodeDebugAdapterLogger} from "../common/log/loggers"; |
| 18 | import {Log} from "../common/log/log"; |
| 19 | import {GeneralMobilePlatform} from "../common/generalMobilePlatform"; |
| 20 | |
| 21 | import { MultipleLifetimesAppWorker } from "./appWorker"; |
| 22 | |
| 23 | export function makeSession(debugSessionClass: typeof ChromeDebuggerCorePackage.ChromeDebugSession, |
| 24 | debugSessionOpts: ChromeDebuggerCorePackage.IChromeDebugSessionOpts, |
| 25 | debugAdapterPackage: typeof VSCodeDebugAdapterPackage, |
| 26 | telemetryReporter: ReassignableTelemetryReporter, |
| 27 | appName: string, version: string): typeof ChromeDebuggerCorePackage.ChromeDebugSession { |
| 28 | |
| 29 | return class extends debugSessionClass { |
| 30 | |
| 31 | private projectRootPath: string; |
| 32 | private remoteExtension: RemoteExtension; |
| 33 | private mobilePlatformOptions: IRunOptions; |
| 34 | private appWorker: MultipleLifetimesAppWorker = null; |
| 35 | |
| 36 | constructor(debuggerLinesAndColumnsStartAt1?: boolean, isServer?: boolean) { |
| 37 | super(debuggerLinesAndColumnsStartAt1, isServer, debugSessionOpts); |
| 38 | } |
| 39 | |
| 40 | // Override ChromeDebugSession's sendEvent to control what we will send to client |
| 41 | public sendEvent(event: VSCodeDebugAdapterPackage.Event): void { |
| 42 | // Do not send "terminated" events signaling about session's restart to client as it would cause it |
| 43 | // to restart adapter's process, while we want to stay alive and don't want to interrupt connection |
| 44 | // to packager. |
| 45 | if (event.event === "terminated" && event.body && event.body.restart === true) { |
| 46 | return; |
| 47 | } |
| 48 | |
| 49 | super.sendEvent(event); |
| 50 | } |
| 51 | |
| 52 | protected dispatchRequest(request: VSCodeDebugAdapterPackage.Request): void { |
| 53 | if (request.command === "disconnect") |
| 54 | return this.disconnect(request); |
| 55 | |
| 56 | if (request.command === "attach") |
| 57 | return this.attach(request); |
| 58 | |
| 59 | if (request.command === "launch") |
| 60 | return this.launch(request); |
| 61 | |
| 62 | return super.dispatchRequest(request); |
| 63 | } |
| 64 | |
| 65 | private launch(request: VSCodeDebugAdapterPackage.Request): void { |
| 66 | this.requestSetup(request.arguments); |
| 67 | this.mobilePlatformOptions.target = request.arguments.target || "simulator"; |
| 68 | this.mobilePlatformOptions.iosRelativeProjectPath = !isNullOrUndefined(request.arguments.iosRelativeProjectPath) ? |
| 69 | request.arguments.iosRelativeProjectPath : |
| 70 | IOSPlatform.DEFAULT_IOS_PROJECT_RELATIVE_PATH; |
| 71 | |
| 72 | // We add the parameter if it's defined (adapter crashes otherwise) |
| 73 | if (!isNullOrUndefined(request.arguments.logCatArguments)) { |
| 74 | this.mobilePlatformOptions.logCatArguments = [parseLogCatArguments(request.arguments.logCatArguments)]; |
| 75 | } |
| 76 | |
| 77 | if (!isNullOrUndefined(request.arguments.variant)) { |
| 78 | this.mobilePlatformOptions.variant = request.arguments.variant; |
| 79 | } |
| 80 | |
| 81 | TelemetryHelper.generate("launch", (generator) => { |
| 82 | return this.remoteExtension.getPackagerPort() |
| 83 | .then((packagerPort: number) => { |
| 84 | this.mobilePlatformOptions.packagerPort = packagerPort; |
| 85 | const mobilePlatform = new PlatformResolver() |
| 86 | .resolveMobilePlatform(request.arguments.platform, this.mobilePlatformOptions); |
| 87 | |
| 88 | generator.step("checkPlatformCompatibility"); |
| 89 | TargetPlatformHelper.checkTargetPlatformSupport(this.mobilePlatformOptions.platform); |
| 90 | generator.step("startPackager"); |
| 91 | return mobilePlatform.startPackager() |
| 92 | .then(() => { |
| 93 | // We've seen that if we don't prewarm the bundle cache, the app fails on the first attempt to connect to the debugger logic |
| 94 | // and the user needs to Reload JS manually. We prewarm it to prevent that issue |
| 95 | generator.step("prewarmBundleCache"); |
| 96 | Log.logMessage("Prewarming bundle cache. This may take a while ..."); |
| 97 | return mobilePlatform.prewarmBundleCache(); |
| 98 | }) |
| 99 | .then(() => { |
| 100 | generator.step("mobilePlatform.runApp"); |
| 101 | Log.logMessage("Building and running application."); |
| 102 | return mobilePlatform.runApp(); |
| 103 | }) |
| 104 | .then(() => { |
| 105 | return this.attachRequest(request, packagerPort, mobilePlatform); |
| 106 | }); |
| 107 | }) |
| 108 | .catch(error => this.bailOut(error.message)); |
| 109 | }); |
| 110 | |
| 111 | } |
| 112 | |
| 113 | private attach(request: VSCodeDebugAdapterPackage.Request): void { |
| 114 | this.requestSetup(request.arguments); |
| 115 | this.remoteExtension.getPackagerPort() |
| 116 | .then((packagerPort: number) => this.attachRequest(request, packagerPort)); |
| 117 | } |
| 118 | |
| 119 | private disconnect(request: VSCodeDebugAdapterPackage.Request): void { |
| 120 | // The client is about to disconnect so first we need to stop app worker |
| 121 | if (this.appWorker) { |
| 122 | this.appWorker.stop(); |
| 123 | } |
| 124 | |
| 125 | // Then we tell the extension to stop monitoring the logcat, and then we disconnect the debugging session |
| 126 | if (this.mobilePlatformOptions.platform === "android") { |
| 127 | this.remoteExtension.stopMonitoringLogcat() |
| 128 | .catch(reason => Log.logError(`WARNING: Couldn't stop monitoring logcat: ${reason.message || reason}\n`)) |
| 129 | .finally(() => super.dispatchRequest(request)); |
| 130 | } else { |
| 131 | super.dispatchRequest(request); |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | private requestSetup(args: any): void { |
| 136 | this.projectRootPath = getProjectRoot(args); |
| 137 | this.remoteExtension = RemoteExtension.atProjectRootPath(this.projectRootPath); |
| 138 | this.mobilePlatformOptions = { |
| 139 | projectRoot: this.projectRootPath, |
| 140 | platform: args.platform, |
| 141 | }; |
| 142 | |
| 143 | // Start to send telemetry |
| 144 | telemetryReporter.reassignTo(new ExtensionTelemetryReporter( |
| 145 | appName, version, Telemetry.APPINSIGHTS_INSTRUMENTATIONKEY, this.projectRootPath)); |
| 146 | |
| 147 | Log.SetGlobalLogger(new NodeDebugAdapterLogger(debugAdapterPackage, this)); |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * Runs logic needed to attach. |
| 152 | * Attach should: |
| 153 | * - Enable js debugging |
| 154 | */ |
| 155 | private attachRequest(request: VSCodeDebugAdapterPackage.Request, |
| 156 | packagerPort: number, |
| 157 | mobilePlatform?: GeneralMobilePlatform): Q.Promise<void> { |
| 158 | return TelemetryHelper.generate("attach", (generator) => { |
| 159 | return Q({}) |
| 160 | .then(() => { |
| 161 | generator.step("mobilePlatform.enableJSDebuggingMode"); |
| 162 | if (mobilePlatform) { |
| 163 | return mobilePlatform.enableJSDebuggingMode(); |
| 164 | } else { |
| 165 | Log.logMessage("Debugger ready. Enable remote debugging in app."); |
| 166 | } |
| 167 | }) |
| 168 | .then(() => { |
| 169 | |
| 170 | Log.logMessage("Starting debugger app worker."); |
| 171 | // TODO: remove dependency on args.program - "program" property is technically |
| 172 | // no more required in launch configuration and could be removed |
| 173 | const workspaceRootPath = path.resolve(path.dirname(request.arguments.program), ".."); |
| 174 | const sourcesStoragePath = path.join(workspaceRootPath, ".vscode", ".react"); |
| 175 | |
| 176 | // If launch is invoked first time, appWorker is undefined, so create it here |
| 177 | this.appWorker = new MultipleLifetimesAppWorker(packagerPort, sourcesStoragePath); |
| 178 | this.appWorker.on("connected", (port: number) => { |
| 179 | Log.logMessage("Debugger worker loaded runtime on port " + port); |
| 180 | // Don't mutate original request to avoid side effects |
| 181 | let attachArguments = Object.assign({}, request.arguments, { port, restart: true, request: "attach" }); |
| 182 | let attachRequest = Object.assign({}, request, { command: "attach", arguments: attachArguments }); |
| 183 | |
| 184 | // Reinstantiate debug adapter, as the current implementation of ChromeDebugAdapter |
| 185 | // doesn't allow us to reattach to another debug target easily. As of now it's easier |
| 186 | // to throw previous instance out and create a new one. |
| 187 | this._debugAdapter = new (<any>debugSessionOpts.adapter)(debugSessionOpts, this); |
| 188 | super.dispatchRequest(attachRequest); |
| 189 | }); |
| 190 | |
| 191 | return this.appWorker.start(); |
| 192 | }) |
| 193 | .catch(error => this.bailOut(error.message)); |
| 194 | }); |
| 195 | } |
| 196 | |
| 197 | /** |
| 198 | * Logs error to user and finishes the debugging process. |
| 199 | */ |
| 200 | private bailOut(message: string): void { |
| 201 | Log.logError(`Could not debug. ${message}`); |
| 202 | this.sendEvent(new debugAdapterPackage.TerminatedEvent()); |
| 203 | }; |
| 204 | }; |
| 205 | } |
| 206 | |
| 207 | export function makeAdapter(debugAdapterClass: typeof Node2DebugAdapterPackage.Node2DebugAdapter): typeof Node2DebugAdapterPackage.Node2DebugAdapter { |
| 208 | return class extends debugAdapterClass { |
| 209 | public doAttach(port: number, targetUrl?: string, address?: string, timeout?: number): Promise<void> { |
| 210 | // We need to overwrite ChromeDebug's _attachMode to let Node2 adapter |
| 211 | // to set up breakpoints on initial pause event |
| 212 | this._attachMode = false; |
| 213 | return super.doAttach(port, targetUrl, address, timeout); |
| 214 | } |
| 215 | }; |
| 216 | } |
| 217 | |
| 218 | /** |
| 219 | * Parses log cat arguments to a string |
| 220 | */ |
| 221 | function parseLogCatArguments(userProvidedLogCatArguments: any): string { |
| 222 | return Array.isArray(userProvidedLogCatArguments) |
| 223 | ? userProvidedLogCatArguments.join(" ") // If it's an array, we join the arguments |
| 224 | : userProvidedLogCatArguments; // If not, we leave it as-is |
| 225 | } |
| 226 | |
| 227 | /** |
| 228 | * Helper method to know if a value is either null or undefined |
| 229 | */ |
| 230 | function isNullOrUndefined(value: any): boolean { |
| 231 | return typeof value === "undefined" || value === null; |
| 232 | } |
| 233 | |
| 234 | /** |
| 235 | * Parses settings.json file for workspace root property |
| 236 | */ |
| 237 | function getProjectRoot(args: any): string { |
| 238 | try { |
| 239 | let vsCodeRoot = path.resolve(args.program, "../.."); |
| 240 | let settingsPath = path.resolve(vsCodeRoot, ".vscode/settings.json"); |
| 241 | let settingsContent = fs.readFileSync(settingsPath, "utf8"); |
| 242 | settingsContent = stripJsonComments(settingsContent); |
| 243 | let parsedSettings = JSON.parse(settingsContent); |
| 244 | let projectRootPath = parsedSettings["react-native-tools"].projectRoot; |
| 245 | return path.resolve(vsCodeRoot, projectRootPath); |
| 246 | } catch (e) { |
| 247 | return path.resolve(args.program, "../.."); |
| 248 | } |
| 249 | } |