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vscode-react-native/src/debugger

src/debugger/debugSessionBase.ts

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1// Copyright (c) Microsoft Corporation. All rights reserved.
2// Licensed under the MIT license. See LICENSE file in the project root for details.
3
4import * as vscode from "vscode";
5import * as path from "path";
6import * as fs from "fs";
7import stripJsonComments = require("strip-json-comments");
8import { LoggingDebugSession, Logger, logger, ErrorDestination } from "vscode-debugadapter";
9import { DebugProtocol } from "vscode-debugprotocol";
10import { getLoggingDirectory, LogHelper } from "../extension/log/LogHelper";
11import { ReactNativeProjectHelper } from "../common/reactNativeProjectHelper";
12import { ErrorHelper } from "../common/error/errorHelper";
13import { InternalErrorCode } from "../common/error/internalErrorCode";
14import { InternalError, NestedError } from "../common/error/internalError";
15import { ILaunchArgs, PlatformType } from "../extension/launchArgs";
16import { AppLauncher } from "../extension/appLauncher";
17import { LogLevel } from "../extension/log/LogHelper";
18import * as nls from "vscode-nls";
19nls.config({ messageFormat: nls.MessageFormat.bundle, bundleFormat: nls.BundleFormat.standalone })();
20const localize = nls.loadMessageBundle();
21
22/**
23 * Enum of possible statuses of debug session
24 */
25export enum DebugSessionStatus {
26 /** A session has been just created */
27 FirstConnection,
28 /** This status is required in order to exclude the possible creation of several debug sessions at the first start */
29 FirstConnectionPending,
30 /** This status means that an application can be reloaded */
31 ConnectionAllowed,
32 /** This status means that an application is reloading now, and we shouldn't terminate the current debug session */
33 ConnectionPending,
34 /** A debuggee connected successfully */
35 ConnectionDone,
36 /** A debuggee failed to connect */
37 ConnectionFailed,
38}
39
40export interface TerminateEventArgs {
41 debugSession: vscode.DebugSession;
42 args: any;
43}
44
45export interface IAttachRequestArgs extends DebugProtocol.AttachRequestArguments, ILaunchArgs {
46 webkitRangeMax: number;
47 webkitRangeMin: number;
48 cwd: string; /* Automatically set by VS Code to the currently opened folder */
49 port: number;
50 url?: string;
51 address?: string;
52 trace?: string;
53 skipFiles?: [];
54 sourceMaps?: boolean;
55 sourceMapPathOverrides?: { [key: string]: string };
56}
57
58export interface ILaunchRequestArgs extends DebugProtocol.LaunchRequestArguments, IAttachRequestArgs { }
59
60export abstract class DebugSessionBase extends LoggingDebugSession {
61
62 protected static rootSessionTerminatedEventEmitter: vscode.EventEmitter<TerminateEventArgs> = new vscode.EventEmitter<TerminateEventArgs>();
63 public static readonly onDidTerminateRootDebugSession = DebugSessionBase.rootSessionTerminatedEventEmitter.event;
64
65 protected readonly stopCommand: string;
66 protected readonly pwaNodeSessionName: string;
67
68 protected appLauncher: AppLauncher;
69 protected projectRootPath: string;
70 protected isSettingsInitialized: boolean; // used to prevent parameters reinitialization when attach is called from launch function
71 protected previousAttachArgs: IAttachRequestArgs;
72 protected cdpProxyLogLevel: LogLevel;
73 protected debugSessionStatus: DebugSessionStatus;
74 protected session: vscode.DebugSession;
75 protected cancellationTokenSource: vscode.CancellationTokenSource;
76
77 constructor(session: vscode.DebugSession) {
78 super();
79
80 // constants definition
81 this.pwaNodeSessionName = "pwa-node"; // the name of node debug session created by js-debug extension
82 this.stopCommand = "workbench.action.debug.stop"; // the command which simulates a click on the "Stop" button
83
84 // variables definition
85 this.session = session;
86 this.isSettingsInitialized = false;
87 this.debugSessionStatus = DebugSessionStatus.FirstConnection;
88 this.cancellationTokenSource = new vscode.CancellationTokenSource();
89 }
90
91 protected initializeRequest(response: DebugProtocol.InitializeResponse, args: DebugProtocol.InitializeRequestArguments): void {
92 response.body = response.body || {};
93
94 response.body.supportsConfigurationDoneRequest = true;
95 response.body.supportsEvaluateForHovers = true;
96 response.body.supportTerminateDebuggee = true;
97 response.body.supportsCancelRequest = true;
98
99 this.sendResponse(response);
100 }
101
102 protected abstract establishDebugSession(attachArgs: IAttachRequestArgs, resolve?: (value?: void | PromiseLike<void> | undefined) => void): void;
103
104 protected initializeSettings(args: any): Promise<any> {
105 if (!this.isSettingsInitialized) {
106 let chromeDebugCoreLogs = getLoggingDirectory();
107 if (chromeDebugCoreLogs) {
108 chromeDebugCoreLogs = path.join(chromeDebugCoreLogs, "DebugSessionLogs.txt");
109 }
110 let logLevel: string = args.trace;
111 if (logLevel) {
112 logLevel = logLevel.replace(logLevel[0], logLevel[0].toUpperCase());
113 logger.setup(Logger.LogLevel[logLevel], chromeDebugCoreLogs || false);
114 this.cdpProxyLogLevel = LogLevel[logLevel] === LogLevel.Verbose ? LogLevel.Custom : LogLevel.None;
115 } else {
116 logger.setup(Logger.LogLevel.Log, chromeDebugCoreLogs || false);
117 this.cdpProxyLogLevel = LogHelper.LOG_LEVEL === LogLevel.Trace ? LogLevel.Custom : LogLevel.None;
118 }
119
120 if (!args.sourceMaps) {
121 args.sourceMaps = true;
122 }
123
124 if (typeof args.enableDebug !== "boolean") {
125 args.enableDebug = true;
126 }
127
128 const projectRootPath = getProjectRoot(args);
129 return ReactNativeProjectHelper.isReactNativeProject(projectRootPath)
130 .then((result) => {
131 if (!result) {
132 throw ErrorHelper.getInternalError(InternalErrorCode.NotInReactNativeFolderError);
133 }
134 this.projectRootPath = projectRootPath;
135 this.appLauncher = AppLauncher.getAppLauncherByProjectRootPath(projectRootPath);
136 this.isSettingsInitialized = true;
137
138 return void 0;
139 });
140 } else {
141 return Promise.resolve();
142 }
143 }
144
145 protected async disconnectRequest(response: DebugProtocol.DisconnectResponse, args: DebugProtocol.DisconnectArguments, request?: DebugProtocol.Request): Promise<void> {
146 await this.appLauncher.getRnCdpProxy().stopServer();
147
148 this.cancellationTokenSource.cancel();
149 this.cancellationTokenSource.dispose();
150
151 // Then we tell the extension to stop monitoring the logcat, and then we disconnect the debugging session
152 if (this.previousAttachArgs && this.previousAttachArgs.platform === PlatformType.Android) {
153 try {
154 this.appLauncher.stopMonitoringLogCat();
155 } catch (err) {
156 logger.warn(localize("CouldNotStopMonitoringLogcat", "Couldn't stop monitoring logcat: {0}", err.message || err));
157 }
158 }
159
160 await logger.dispose();
161
162 DebugSessionBase.rootSessionTerminatedEventEmitter.fire({
163 debugSession: this.session,
164 args: {
165 forcedStop: !!(<any>args).forcedStop,
166 },
167 });
168
169 this.sendResponse(response);
170 }
171
172 protected showError(error: Error, response: DebugProtocol.Response): void {
173
174 // We can't print error messages after the debugging session is stopped. This could break the extension work.
175 if ((error instanceof InternalError || error instanceof NestedError)
176 && error.errorCode === InternalErrorCode.CancellationTokenTriggered
177 ) {
178 return;
179 }
180
181 this.sendErrorResponse(
182 response,
183 { format: error.message, id: 1 },
184 undefined,
185 undefined,
186 ErrorDestination.User
187 );
188 }
189}
190
191/**
192 * Parses settings.json file for workspace root property
193 */
194export function getProjectRoot(args: any): string {
195 const vsCodeRoot = args.cwd ? path.resolve(args.cwd) : path.resolve(args.program, "../..");
196 const settingsPath = path.resolve(vsCodeRoot, ".vscode/settings.json");
197 try {
198 let settingsContent = fs.readFileSync(settingsPath, "utf8");
199 settingsContent = stripJsonComments(settingsContent);
200 let parsedSettings = JSON.parse(settingsContent);
201 let projectRootPath = parsedSettings["react-native-tools.projectRoot"] || parsedSettings["react-native-tools"].projectRoot;
202 return path.resolve(vsCodeRoot, projectRootPath);
203 } catch (e) {
204 logger.verbose(`${settingsPath} file doesn't exist or its content is incorrect. This file will be ignored.`);
205 return args.cwd ? path.resolve(args.cwd) : path.resolve(args.program, "../..");
206 }
207}
208