move userSettings down to base

fixes #7453

src/vs/workbench/node/userSettings.ts

@@ -1,208 +0,0 @@
-/*---------------------------------------------------------------------------------------------
- *  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 fs = require('fs');
-import path = require('path');
-
-import json = require('vs/base/common/json');
-import objects = require('vs/base/common/objects');
-import {TPromise} from 'vs/base/common/winjs.base';
-import Event, {Emitter} from 'vs/base/common/event';
-
-export interface ISettings {
-	settings: any;
-	settingsParseErrors?: string[];
-	keybindings: any;
-}
-
-export class UserSettings {
-
-	private static CHANGE_BUFFER_DELAY = 300;
-
-	public globalSettings: ISettings;
-
-	private timeoutHandle: number;
-	private watcher: fs.FSWatcher;
-	private appSettingsPath: string;
-	private appKeybindingsPath: string;
-
-	private _onChange: Emitter<ISettings>;
-
-	constructor(appSettingsPath: string, appKeybindingsPath: string) {
-		this.appSettingsPath = appSettingsPath;
-		this.appKeybindingsPath = appKeybindingsPath;
-		this._onChange = new Emitter<ISettings>();
-
-		this.registerWatchers();
-	}
-
-	public static getValue(userDataPath: string, key: string, fallback?: any): TPromise<any> {
-		// TODO@joao cleanup!
-		const appSettingsPath = path.join(userDataPath, 'User', 'settings.json');
-
-		return new TPromise((c, e) => {
-			fs.readFile(appSettingsPath, (error /* ignore */, fileContents) => {
-				let root = Object.create(null);
-				let content = fileContents ? fileContents.toString() : '{}';
-
-				let contents = Object.create(null);
-				try {
-					contents = json.parse(content);
-				} catch (error) {
-					// ignore parse problem
-				}
-
-				for (let key in contents) {
-					UserSettings.setNode(root, key, contents[key]);
-				}
-
-				return c(UserSettings.doGetValue(root, key, fallback));
-			});
-		});
-	}
-
-	public get onChange(): Event<ISettings> {
-		return this._onChange.event;
-	}
-
-	public getValue(key: string, fallback?: any): any {
-		return UserSettings.doGetValue(this.globalSettings.settings, key, fallback);
-	}
-
-	private static doGetValue(globalSettings: any, key: string, fallback?: any): any {
-		if (!key) {
-			return fallback;
-		}
-
-		let value = globalSettings;
-
-		let parts = key.split('\.');
-		while (parts.length && value) {
-			let part = parts.shift();
-			value = value[part];
-		}
-
-		return typeof value !== 'undefined' ? value : fallback;
-	}
-
-	private registerWatchers(): void {
-		this.watcher = fs.watch(path.dirname(this.appSettingsPath));
-		this.watcher.on('change', (eventType: string, fileName: string) => this.onSettingsFileChange(eventType, fileName));
-	}
-
-	private onSettingsFileChange(eventType: string, fileName: string): void {
-
-		// we can get multiple change events for one change, so we buffer through a timeout
-		if (this.timeoutHandle) {
-			global.clearTimeout(this.timeoutHandle);
-			this.timeoutHandle = null;
-		}
-
-		this.timeoutHandle = global.setTimeout(() => {
-
-			// Reload
-			let didChange = this.loadSync();
-
-			// Emit event
-			if (didChange) {
-				this._onChange.fire(this.globalSettings);
-			}
-
-		}, UserSettings.CHANGE_BUFFER_DELAY);
-	}
-
-	public loadSync(): boolean {
-		let loadedSettings = this.doLoadSync();
-		if (!objects.equals(loadedSettings, this.globalSettings)) {
-
-			// Keep in class
-			this.globalSettings = loadedSettings;
-
-			return true; // changed value
-		}
-
-		return false; // no changed value
-	}
-
-	private doLoadSync(): ISettings {
-		let settings = this.doLoadSettingsSync();
-
-		return {
-			settings: settings.contents,
-			settingsParseErrors: settings.parseErrors,
-			keybindings: this.doLoadKeybindingsSync()
-		};
-	}
-
-	private doLoadSettingsSync(): { contents: any; parseErrors?: string[]; } {
-		let root = Object.create(null);
-		let content = '{}';
-		try {
-			content = fs.readFileSync(this.appSettingsPath).toString();
-		} catch (error) {
-			// ignore
-		}
-
-		let contents = Object.create(null);
-		try {
-			contents = json.parse(content);
-		} catch (error) {
-			// parse problem
-			return {
-				contents: Object.create(null),
-				parseErrors: [this.appSettingsPath]
-			};
-		}
-
-		for (let key in contents) {
-			UserSettings.setNode(root, key, contents[key]);
-		}
-
-		return {
-			contents: root
-		};
-	}
-
-	private static setNode(root: any, key: string, value: any): any {
-		let segments = key.split('.');
-		let last = segments.pop();
-
-		let curr = root;
-		segments.forEach((s) => {
-			let obj = curr[s];
-			switch (typeof obj) {
-				case 'undefined':
-					obj = curr[s] = {};
-					break;
-				case 'object':
-					break;
-				default:
-					console.log('Conflicting user settings: ' + key + ' at ' + s + ' with ' + JSON.stringify(obj));
-			}
-			curr = obj;
-		});
-		curr[last] = value;
-	}
-
-	private doLoadKeybindingsSync(): any {
-		try {
-			return json.parse(fs.readFileSync(this.appKeybindingsPath).toString());
-		} catch (error) {
-			// Ignore loading and parsing errors
-		}
-
-		return [];
-	}
-
-	public dispose(): void {
-		if (this.watcher) {
-			this.watcher.close();
-			this.watcher = null;
-		}
-	}
-}