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x/mesozoic/lib/logger.ts

A generic build system for Deno web apps
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import { crayon, log, sprintf } from "./deps.ts";
function gradient(string: string) { const chars: string[] = string.split("");
for (const [index, char] of chars.entries()) { chars[index] = crayon.hsl(7 * index, 100, 50)(char); }
return chars.join("");}
function formatLevel(level: log.LevelName) { switch (level) { case "INFO": return crayon.bold.blue(level);
case "DEBUG": return crayon.bold.magenta(level);
case "WARNING": return crayon.bold.yellow(level);
case "ERROR": return crayon.bold.red(level);
case "CRITICAL": return crayon.bgRed.black.bold(level);
default: return level; }}
export class Logger extends log.Logger { /** * @param levelName * @param name */ constructor(levelName: log.LevelName, name: string) { const loggerName = gradient(`[${name}]`);
super(name, levelName, { handlers: [ new log.handlers.ConsoleHandler("DEBUG", { formatter(record) { const level = formatLevel(record.levelName as log.LevelName); return sprintf( "%s - %s %s", loggerName, level, record.msg, ); }, }), ], }); }
success(message: string) { return this.info(crayon.green(`${message}`)); }}