Revert "Merge from vscode 81d7885dc2e9dc617e1522697a2966bc4025a45d (#5949)" (#5983)

This reverts commit d15a3fcc98.

src/vs/platform/configuration/node/configuration.ts

@@ -0,0 +1,56 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { Disposable } from 'vs/base/common/lifecycle';
+import { onUnexpectedError } from 'vs/base/common/errors';
+import { ConfigurationModelParser, ConfigurationModel } from 'vs/platform/configuration/common/configurationModels';
+import { ConfigWatcher } from 'vs/base/node/config';
+import { Event, Emitter } from 'vs/base/common/event';
+
+export class NodeBasedUserConfiguration extends Disposable {
+
+	private userConfigModelWatcher: ConfigWatcher<ConfigurationModelParser>;
+	private initializePromise: Promise<void>;
+
+	private readonly _onDidChangeConfiguration: Emitter<ConfigurationModel> = this._register(new Emitter<ConfigurationModel>());
+	readonly onDidChangeConfiguration: Event<ConfigurationModel> = this._onDidChangeConfiguration.event;
+
+	constructor(private settingsPath: string) {
+		super();
+	}
+
+	initialize(): Promise<ConfigurationModel> {
+		if (!this.initializePromise) {
+			this.initializePromise = new Promise<void>((c, e) => {
+				this.userConfigModelWatcher = new ConfigWatcher(this.settingsPath, {
+					changeBufferDelay: 300, onError: error => onUnexpectedError(error), defaultConfig: new ConfigurationModelParser(this.settingsPath), parse: (content: string, parseErrors: any[]) => {
+						const userConfigModelParser = new ConfigurationModelParser(this.settingsPath);
+						userConfigModelParser.parseContent(content);
+						parseErrors = [...userConfigModelParser.errors];
+						return userConfigModelParser;
+					}, initCallback: () => c(undefined)
+				});
+				this._register(this.userConfigModelWatcher);
+
+				// Listeners
+				this._register(this.userConfigModelWatcher.onDidUpdateConfiguration(() => this._onDidChangeConfiguration.fire(this.userConfigModelWatcher.getConfig().configurationModel)));
+			});
+		}
+		return this.initializePromise.then(() => this.userConfigModelWatcher.getConfig().configurationModel);
+	}
+
+	initializeSync(): ConfigurationModel {
+		this.initialize();
+		return this.userConfigModelWatcher.getConfig().configurationModel;
+	}
+
+	reload(): Promise<ConfigurationModel> {
+		return this.initialize().then(() => new Promise<ConfigurationModel>(c => this.userConfigModelWatcher.reload(userConfigModelParser => c(userConfigModelParser.configurationModel))));
+	}
+
+	getConfigurationModel(): ConfigurationModel {
+		return this.userConfigModelWatcher.getConfig().configurationModel;
+	}
+}