367 lines
11 KiB
TypeScript
367 lines
11 KiB
TypeScript
/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import * as path from 'path';
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import * as fs from 'fs';
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import * as cp from 'child_process';
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import * as vscode from 'vscode';
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import * as nls from 'vscode-nls';
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const localize = nls.loadMessageBundle();
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type AutoDetect = 'on' | 'off';
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function exists(file: string): Promise<boolean> {
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return new Promise<boolean>((resolve, _reject) => {
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fs.exists(file, (value) => {
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resolve(value);
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});
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});
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}
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function exec(command: string, options: cp.ExecOptions): Promise<{ stdout: string; stderr: string }> {
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return new Promise<{ stdout: string; stderr: string }>((resolve, reject) => {
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cp.exec(command, options, (error, stdout, stderr) => {
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if (error) {
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reject({ error, stdout, stderr });
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}
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resolve({ stdout, stderr });
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});
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});
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}
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const buildNames: string[] = ['build', 'compile', 'watch'];
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function isBuildTask(name: string): boolean {
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for (let buildName of buildNames) {
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if (name.indexOf(buildName) !== -1) {
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return true;
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}
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}
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return false;
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}
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const testNames: string[] = ['test'];
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function isTestTask(name: string): boolean {
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for (let testName of testNames) {
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if (name.indexOf(testName) !== -1) {
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return true;
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}
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}
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return false;
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}
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let _channel: vscode.OutputChannel;
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function getOutputChannel(): vscode.OutputChannel {
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if (!_channel) {
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_channel = vscode.window.createOutputChannel('Grunt Auto Detection');
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}
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return _channel;
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}
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function showError() {
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vscode.window.showWarningMessage(localize('gruntTaskDetectError', 'Problem finding grunt tasks. See the output for more information.'),
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localize('gruntShowOutput', 'Go to output')).then(() => {
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getOutputChannel().show(true);
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});
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}
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interface GruntTaskDefinition extends vscode.TaskDefinition {
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task: string;
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args?: string[];
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file?: string;
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}
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async function findGruntCommand(rootPath: string): Promise<string> {
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let command: string;
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let platform = process.platform;
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if (platform === 'win32' && await exists(path.join(rootPath!, 'node_modules', '.bin', 'grunt.cmd'))) {
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command = path.join('.', 'node_modules', '.bin', 'grunt.cmd');
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} else if ((platform === 'linux' || platform === 'darwin') && await exists(path.join(rootPath!, 'node_modules', '.bin', 'grunt'))) {
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command = path.join('.', 'node_modules', '.bin', 'grunt');
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} else {
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command = 'grunt';
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}
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return command;
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}
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class FolderDetector {
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private fileWatcher: vscode.FileSystemWatcher | undefined;
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private promise: Thenable<vscode.Task[]> | undefined;
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constructor(
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private _workspaceFolder: vscode.WorkspaceFolder,
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private _gruntCommand: Promise<string>) {
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}
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public get workspaceFolder(): vscode.WorkspaceFolder {
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return this._workspaceFolder;
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}
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public isEnabled(): boolean {
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return vscode.workspace.getConfiguration('grunt', this._workspaceFolder.uri).get<AutoDetect>('autoDetect') === 'on';
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}
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public start(): void {
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let pattern = path.join(this._workspaceFolder.uri.fsPath, '{node_modules,[Gg]runtfile.js}');
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this.fileWatcher = vscode.workspace.createFileSystemWatcher(pattern);
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this.fileWatcher.onDidChange(() => this.promise = undefined);
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this.fileWatcher.onDidCreate(() => this.promise = undefined);
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this.fileWatcher.onDidDelete(() => this.promise = undefined);
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}
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public async getTasks(): Promise<vscode.Task[]> {
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if (this.isEnabled()) {
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if (!this.promise) {
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this.promise = this.computeTasks();
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}
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return this.promise;
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} else {
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return [];
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}
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}
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public async getTask(_task: vscode.Task): Promise<vscode.Task | undefined> {
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const taskDefinition = <any>_task.definition;
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const gruntTask = taskDefinition.task;
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if (gruntTask) {
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let options: vscode.ShellExecutionOptions = { cwd: this.workspaceFolder.uri.fsPath };
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let source = 'grunt';
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let task = gruntTask.indexOf(' ') === -1
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? new vscode.Task(taskDefinition, this.workspaceFolder, gruntTask, source, new vscode.ShellExecution(`${await this._gruntCommand}`, [gruntTask, ...taskDefinition.args], options))
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: new vscode.Task(taskDefinition, this.workspaceFolder, gruntTask, source, new vscode.ShellExecution(`${await this._gruntCommand}`, [`"${gruntTask}"`, ...taskDefinition.args], options));
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return task;
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}
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return undefined;
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}
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private async computeTasks(): Promise<vscode.Task[]> {
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let rootPath = this._workspaceFolder.uri.scheme === 'file' ? this._workspaceFolder.uri.fsPath : undefined;
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let emptyTasks: vscode.Task[] = [];
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if (!rootPath) {
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return emptyTasks;
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}
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if (!await exists(path.join(rootPath, 'gruntfile.js')) && !await exists(path.join(rootPath, 'Gruntfile.js'))) {
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return emptyTasks;
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}
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let commandLine = `${await this._gruntCommand} --help --no-color`;
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try {
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let { stdout, stderr } = await exec(commandLine, { cwd: rootPath });
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if (stderr) {
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getOutputChannel().appendLine(stderr);
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showError();
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}
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let result: vscode.Task[] = [];
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if (stdout) {
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// grunt lists tasks as follows (description is wrapped into a new line if too long):
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// ...
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// Available tasks
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// uglify Minify files with UglifyJS. *
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// jshint Validate files with JSHint. *
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// test Alias for "jshint", "qunit" tasks.
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// default Alias for "jshint", "qunit", "concat", "uglify" tasks.
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// long Alias for "eslint", "qunit", "browserify", "sass",
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// "autoprefixer", "uglify", tasks.
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//
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// Tasks run in the order specified
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let lines = stdout.split(/\r{0,1}\n/);
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let tasksStart = false;
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let tasksEnd = false;
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for (let line of lines) {
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if (line.length === 0) {
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continue;
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}
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if (!tasksStart && !tasksEnd) {
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if (line.indexOf('Available tasks') === 0) {
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tasksStart = true;
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}
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} else if (tasksStart && !tasksEnd) {
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if (line.indexOf('Tasks run in the order specified') === 0) {
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tasksEnd = true;
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} else {
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let regExp = /^\s*(\S.*\S) \S/g;
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let matches = regExp.exec(line);
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if (matches && matches.length === 2) {
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let name = matches[1];
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let kind: GruntTaskDefinition = {
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type: 'grunt',
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task: name
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};
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let source = 'grunt';
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let options: vscode.ShellExecutionOptions = { cwd: this.workspaceFolder.uri.fsPath };
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let task = name.indexOf(' ') === -1
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? new vscode.Task(kind, this.workspaceFolder, name, source, new vscode.ShellExecution(`${await this._gruntCommand} ${name}`, options))
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: new vscode.Task(kind, this.workspaceFolder, name, source, new vscode.ShellExecution(`${await this._gruntCommand} "${name}"`, options));
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result.push(task);
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let lowerCaseTaskName = name.toLowerCase();
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if (isBuildTask(lowerCaseTaskName)) {
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task.group = vscode.TaskGroup.Build;
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} else if (isTestTask(lowerCaseTaskName)) {
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task.group = vscode.TaskGroup.Test;
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}
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}
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}
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}
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}
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}
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return result;
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} catch (err) {
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let channel = getOutputChannel();
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if (err.stderr) {
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channel.appendLine(err.stderr);
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}
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if (err.stdout) {
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channel.appendLine(err.stdout);
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}
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channel.appendLine(localize('execFailed', 'Auto detecting Grunt for folder {0} failed with error: {1}', this.workspaceFolder.name, err.error ? err.error.toString() : 'unknown'));
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showError();
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return emptyTasks;
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}
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}
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public dispose() {
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this.promise = undefined;
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if (this.fileWatcher) {
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this.fileWatcher.dispose();
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}
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}
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}
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class TaskDetector {
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private taskProvider: vscode.Disposable | undefined;
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private detectors: Map<string, FolderDetector> = new Map();
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constructor() {
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}
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public start(): void {
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let folders = vscode.workspace.workspaceFolders;
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if (folders) {
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this.updateWorkspaceFolders(folders, []);
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}
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vscode.workspace.onDidChangeWorkspaceFolders((event) => this.updateWorkspaceFolders(event.added, event.removed));
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vscode.workspace.onDidChangeConfiguration(this.updateConfiguration, this);
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}
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public dispose(): void {
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if (this.taskProvider) {
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this.taskProvider.dispose();
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this.taskProvider = undefined;
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}
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this.detectors.clear();
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}
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private updateWorkspaceFolders(added: readonly vscode.WorkspaceFolder[], removed: readonly vscode.WorkspaceFolder[]): void {
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for (let remove of removed) {
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let detector = this.detectors.get(remove.uri.toString());
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if (detector) {
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detector.dispose();
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this.detectors.delete(remove.uri.toString());
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}
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}
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for (let add of added) {
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let detector = new FolderDetector(add, findGruntCommand(add.uri.fsPath));
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this.detectors.set(add.uri.toString(), detector);
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if (detector.isEnabled()) {
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detector.start();
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}
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}
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this.updateProvider();
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}
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private updateConfiguration(): void {
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for (let detector of this.detectors.values()) {
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detector.dispose();
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this.detectors.delete(detector.workspaceFolder.uri.toString());
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}
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let folders = vscode.workspace.workspaceFolders;
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if (folders) {
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for (let folder of folders) {
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if (!this.detectors.has(folder.uri.toString())) {
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let detector = new FolderDetector(folder, findGruntCommand(folder.uri.fsPath));
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this.detectors.set(folder.uri.toString(), detector);
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if (detector.isEnabled()) {
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detector.start();
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}
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}
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}
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}
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this.updateProvider();
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}
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private updateProvider(): void {
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if (!this.taskProvider && this.detectors.size > 0) {
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const thisCapture = this;
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this.taskProvider = vscode.tasks.registerTaskProvider('grunt', {
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provideTasks: (): Promise<vscode.Task[]> => {
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return thisCapture.getTasks();
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},
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resolveTask(_task: vscode.Task): Promise<vscode.Task | undefined> {
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return thisCapture.getTask(_task);
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}
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});
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}
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else if (this.taskProvider && this.detectors.size === 0) {
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this.taskProvider.dispose();
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this.taskProvider = undefined;
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}
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}
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public getTasks(): Promise<vscode.Task[]> {
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return this.computeTasks();
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}
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private computeTasks(): Promise<vscode.Task[]> {
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if (this.detectors.size === 0) {
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return Promise.resolve([]);
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} else if (this.detectors.size === 1) {
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return this.detectors.values().next().value.getTasks();
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} else {
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let promises: Promise<vscode.Task[]>[] = [];
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for (let detector of this.detectors.values()) {
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promises.push(detector.getTasks().then((value) => value, () => []));
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}
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return Promise.all(promises).then((values) => {
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let result: vscode.Task[] = [];
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for (let tasks of values) {
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if (tasks && tasks.length > 0) {
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result.push(...tasks);
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}
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}
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return result;
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});
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}
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}
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public async getTask(task: vscode.Task): Promise<vscode.Task | undefined> {
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if (this.detectors.size === 0) {
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return undefined;
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} else if (this.detectors.size === 1) {
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return this.detectors.values().next().value.getTask(task);
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} else {
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if ((task.scope === vscode.TaskScope.Workspace) || (task.scope === vscode.TaskScope.Global)) {
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return undefined;
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} else if (task.scope) {
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const detector = this.detectors.get(task.scope.uri.toString());
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if (detector) {
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return detector.getTask(task);
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}
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}
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return undefined;
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}
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}
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}
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let detector: TaskDetector;
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export function activate(_context: vscode.ExtensionContext): void {
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detector = new TaskDetector();
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detector.start();
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}
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export function deactivate(): void {
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detector.dispose();
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}
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