Files
vscode/src/vs/workbench/node/extensionHostMain.ts
2017-11-28 17:05:35 +01:00

306 lines
11 KiB
TypeScript

/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
'use strict';
import nls = require('vs/nls');
import pfs = require('vs/base/node/pfs');
import { TPromise } from 'vs/base/common/winjs.base';
import { join } from 'path';
import { RPCProtocol } from 'vs/workbench/services/extensions/node/rpcProtocol';
import { ExtHostExtensionService } from 'vs/workbench/api/node/extHostExtensionService';
import { ExtHostThreadService } from 'vs/workbench/services/thread/node/extHostThreadService';
import { ExtHostConfiguration } from 'vs/workbench/api/node/extHostConfiguration';
import { ExtHostWorkspace } from 'vs/workbench/api/node/extHostWorkspace';
import { IExtensionDescription } from 'vs/platform/extensions/common/extensions';
import { QueryType, ISearchQuery } from 'vs/platform/search/common/search';
import { DiskSearch } from 'vs/workbench/services/search/node/searchService';
import { IInitData, IEnvironment, IWorkspaceData, MainContext } from 'vs/workbench/api/node/extHost.protocol';
import * as errors from 'vs/base/common/errors';
import * as watchdog from 'native-watchdog';
import * as glob from 'vs/base/common/glob';
import { ExtensionActivatedByEvent } from 'vs/workbench/api/node/extHostExtensionActivator';
// const nativeExit = process.exit.bind(process);
function patchExit(allowExit: boolean) {
process.exit = function (code) {
if (allowExit) {
exit(code);
} else {
const err = new Error('An extension called process.exit() and this was prevented.');
console.warn(err.stack);
}
};
}
export function exit(code?: number) {
//nativeExit(code);
// TODO@electron
// See https://github.com/Microsoft/vscode/issues/32990
// calling process.exit() does not exit the process when the process is being debugged
// It waits for the debugger to disconnect, but in our version, the debugger does not
// receive an event that the process desires to exit such that it can disconnect.
// Do exactly what node.js would have done, minus the wait for the debugger part
if (code || code === 0) {
process.exitCode = code;
}
if (!(<any>process)._exiting) {
(<any>process)._exiting = true;
process.emit('exit', process.exitCode || 0);
}
watchdog.exit(process.exitCode || 0);
}
interface ITestRunner {
run(testsRoot: string, clb: (error: Error, failures?: number) => void): void;
}
export class ExtensionHostMain {
private _isTerminating: boolean = false;
private _diskSearch: DiskSearch;
private _workspace: IWorkspaceData;
private _environment: IEnvironment;
private _extensionService: ExtHostExtensionService;
private _extHostConfiguration: ExtHostConfiguration;
constructor(rpcProtocol: RPCProtocol, initData: IInitData) {
this._environment = initData.environment;
this._workspace = initData.workspace;
const allowExit = !!this._environment.extensionTestsPath; // to support other test frameworks like Jasmin that use process.exit (https://github.com/Microsoft/vscode/issues/37708)
patchExit(allowExit);
// services
const threadService = new ExtHostThreadService(rpcProtocol);
const extHostWorkspace = new ExtHostWorkspace(threadService, initData.workspace);
this._extHostConfiguration = new ExtHostConfiguration(threadService.get(MainContext.MainThreadConfiguration), extHostWorkspace, initData.configuration);
this._extensionService = new ExtHostExtensionService(initData, threadService, extHostWorkspace, this._extHostConfiguration);
// error forwarding and stack trace scanning
const extensionErrors = new WeakMap<Error, IExtensionDescription>();
this._extensionService.getExtensionPathIndex().then(map => {
(<any>Error).prepareStackTrace = (error: Error, stackTrace: errors.V8CallSite[]) => {
let stackTraceMessage = '';
let extension: IExtensionDescription;
let fileName: string;
for (const call of stackTrace) {
stackTraceMessage += `\n\tat ${call.toString()}`;
fileName = call.getFileName();
if (!extension && fileName) {
extension = map.findSubstr(fileName);
}
}
extensionErrors.set(error, extension);
return `${error.name || 'Error'}: ${error.message || ''}${stackTraceMessage}`;
};
});
const mainThreadErrors = threadService.get(MainContext.MainThreadErrors);
errors.setUnexpectedErrorHandler(err => {
const data = errors.transformErrorForSerialization(err);
const extension = extensionErrors.get(err);
mainThreadErrors.$onUnexpectedError(data, extension && extension.id);
});
// Configure the watchdog to kill our process if the JS event loop is unresponsive for more than 10s
// if (!initData.environment.isExtensionDevelopmentDebug) {
// watchdog.start(10000);
// }
}
public start(): TPromise<void> {
return this._extensionService.onExtensionAPIReady()
.then(() => this.handleEagerExtensions())
.then(() => this.handleExtensionTests());
}
public terminate(): void {
if (this._isTerminating) {
// we are already shutting down...
return;
}
this._isTerminating = true;
errors.setUnexpectedErrorHandler((err) => {
// TODO: write to log once we have one
});
let allPromises: TPromise<void>[] = [];
try {
let allExtensions = this._extensionService.getAllExtensionDescriptions();
let allExtensionsIds = allExtensions.map(ext => ext.id);
let activatedExtensions = allExtensionsIds.filter(id => this._extensionService.isActivated(id));
allPromises = activatedExtensions.map((extensionId) => {
return this._extensionService.deactivate(extensionId);
});
} catch (err) {
// TODO: write to log once we have one
}
let extensionsDeactivated = TPromise.join(allPromises).then<void>(() => void 0);
// Give extensions 1 second to wrap up any async dispose, then exit
setTimeout(() => {
TPromise.any<void>([TPromise.timeout(4000), extensionsDeactivated]).then(() => exit(), () => exit());
}, 1000);
}
// Handle "eager" activation extensions
private handleEagerExtensions(): TPromise<void> {
this._extensionService.activateByEvent('*', true).then(null, (err) => {
console.error(err);
});
return this.handleWorkspaceContainsEagerExtensions();
}
private handleWorkspaceContainsEagerExtensions(): TPromise<void> {
if (!this._workspace || this._workspace.folders.length === 0) {
return TPromise.as(null);
}
return TPromise.join(
this._extensionService.getAllExtensionDescriptions().map((desc) => {
return this.handleWorkspaceContainsEagerExtension(desc);
})
).then(() => { });
}
private handleWorkspaceContainsEagerExtension(desc: IExtensionDescription): TPromise<void> {
let activationEvents = desc.activationEvents;
if (!activationEvents) {
return TPromise.as(void 0);
}
const fileNames: string[] = [];
const globPatterns: string[] = [];
for (let i = 0; i < activationEvents.length; i++) {
if (/^workspaceContains:/.test(activationEvents[i])) {
let fileNameOrGlob = activationEvents[i].substr('workspaceContains:'.length);
if (fileNameOrGlob.indexOf('*') >= 0 || fileNameOrGlob.indexOf('?') >= 0) {
globPatterns.push(fileNameOrGlob);
} else {
fileNames.push(fileNameOrGlob);
}
}
}
if (fileNames.length === 0 && globPatterns.length === 0) {
return TPromise.as(void 0);
}
let fileNamePromise = TPromise.join(fileNames.map((fileName) => this.activateIfFileName(desc.id, fileName))).then(() => { });
let globPatternPromise = this.activateIfGlobPatterns(desc.id, globPatterns);
return TPromise.join([fileNamePromise, globPatternPromise]).then(() => { });
}
private async activateIfFileName(extensionId: string, fileName: string): TPromise<void> {
// find exact path
for (const { uri } of this._workspace.folders) {
if (await pfs.exists(join(uri.fsPath, fileName))) {
// the file was found
return (
this._extensionService.activateById(extensionId, new ExtensionActivatedByEvent(true, `workspaceContains:${fileName}`))
.done(null, err => console.error(err))
);
}
}
return undefined;
}
private async activateIfGlobPatterns(extensionId: string, globPatterns: string[]): TPromise<void> {
if (globPatterns.length === 0) {
return TPromise.as(void 0);
}
if (!this._diskSearch) {
// Shut down this search process after 1s
this._diskSearch = new DiskSearch(false, 1000);
}
let includes: glob.IExpression = {};
globPatterns.forEach((globPattern) => {
includes[globPattern] = true;
});
const folderQueries = this._workspace.folders.map(folder => ({ folder: folder.uri }));
const config = this._extHostConfiguration.getConfiguration('search');
const useRipgrep = config.get('useRipgrep', true);
const followSymlinks = config.get('followSymlinks', true);
const query: ISearchQuery = {
folderQueries,
type: QueryType.File,
exists: true,
includePattern: includes,
useRipgrep,
ignoreSymlinks: !followSymlinks
};
let result = await this._diskSearch.search(query);
if (result.limitHit) {
// a file was found matching one of the glob patterns
return (
this._extensionService.activateById(extensionId, new ExtensionActivatedByEvent(true, `workspaceContains:${globPatterns.join(',')}`))
.done(null, err => console.error(err))
);
}
return TPromise.as(void 0);
}
private handleExtensionTests(): TPromise<void> {
if (!this._environment.extensionTestsPath || !this._environment.extensionDevelopmentPath) {
return TPromise.as(null);
}
// Require the test runner via node require from the provided path
let testRunner: ITestRunner;
let requireError: Error;
try {
testRunner = <any>require.__$__nodeRequire(this._environment.extensionTestsPath);
} catch (error) {
requireError = error;
}
// Execute the runner if it follows our spec
if (testRunner && typeof testRunner.run === 'function') {
return new TPromise<void>((c, e) => {
testRunner.run(this._environment.extensionTestsPath, (error, failures) => {
if (error) {
e(error.toString());
} else {
c(null);
}
// after tests have run, we shutdown the host
this.gracefulExit(failures && failures > 0 ? 1 /* ERROR */ : 0 /* OK */);
});
});
}
// Otherwise make sure to shutdown anyway even in case of an error
else {
this.gracefulExit(1 /* ERROR */);
}
return TPromise.wrapError<void>(new Error(requireError ? requireError.toString() : nls.localize('extensionTestError', "Path {0} does not point to a valid extension test runner.", this._environment.extensionTestsPath)));
}
private gracefulExit(code: number): void {
// to give the PH process a chance to flush any outstanding console
// messages to the main process, we delay the exit() by some time
setTimeout(() => exit(code), 500);
}
}