88 lines
2.1 KiB
TypeScript
88 lines
2.1 KiB
TypeScript
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/*---------------------------------------------------------------------------------------------
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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 vscode from 'vscode';
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import { lazy } from './util/lazy';
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enum Trace {
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Off,
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Verbose
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}
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namespace Trace {
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export function fromString(value: string): Trace {
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value = value.toLowerCase();
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switch (value) {
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case 'off':
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return Trace.Off;
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case 'verbose':
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return Trace.Verbose;
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default:
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return Trace.Off;
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}
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}
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}
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function isString(value: any): value is string {
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return Object.prototype.toString.call(value) === '[object String]';
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}
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export class Logger {
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private trace?: Trace;
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private readonly outputChannel = lazy(() => vscode.window.createOutputChannel('Markdown'));
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constructor() {
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this.updateConfiguration();
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}
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public log(message: string, data?: any): void {
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if (this.trace === Trace.Verbose) {
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this.appendLine(`[Log - ${this.now()}] ${message}`);
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if (data) {
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this.appendLine(Logger.data2String(data));
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}
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}
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}
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private now(): string {
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const now = new Date();
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return padLeft(now.getUTCHours() + '', 2, '0')
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+ ':' + padLeft(now.getMinutes() + '', 2, '0')
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+ ':' + padLeft(now.getUTCSeconds() + '', 2, '0') + '.' + now.getMilliseconds();
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}
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public updateConfiguration() {
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this.trace = this.readTrace();
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}
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private appendLine(value: string) {
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return this.outputChannel.value.appendLine(value);
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}
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private readTrace(): Trace {
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return Trace.fromString(vscode.workspace.getConfiguration().get<string>('markdown.trace', 'off'));
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}
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private static data2String(data: any): string {
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if (data instanceof Error) {
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if (isString(data.stack)) {
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return data.stack;
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}
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return (data as Error).message;
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}
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if (isString(data)) {
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return data;
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}
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return JSON.stringify(data, undefined, 2);
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}
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}
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function padLeft(s: string, n: number, pad = ' ') {
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return pad.repeat(Math.max(0, n - s.length)) + s;
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}
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