All files / if-run/util log-memoize.ts

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import {LeveledLogMethod} from 'winston';
 
/**
 * Keeps in memory logged messages. If called with redundant message, skips logging.
 */
const memoizedLogger = () => {
  const memory: string[] = [];
 
  return (logger: LeveledLogMethod | typeof console.debug, message: string) => {
    if (memory.includes(message)) {
      return;
    }
 
    memory.push(message);
    logger(message);
  };
};
 
/** Singleton pattern. */
export const memoizedLog = memoizedLogger();