progress.js

const currPath = 'path';
const aspects = ['new', 'workout', 'blah'];

fs
  .readDirSync(currPath)
  .filter(folder => folder !== 'archived')
  .forEach(topicName =>
    fs
      .readDirSync(path.join(currFolder, topicName))
      .filter(folder => folder !== 'README.md')
      .forEach(courseName =>
        fs
          .readDirSync(path.join(currFolder, topicName, courseName))
          .filter(folder => folder !== 'README.md')
          .forEach(workoutName =>
            fs
              .readDirSync(
                path.join(currFolder, topicName, courseName, workoutName)
              )
              .filter(folder => folder !== 'README.md')
              .forEach(insightName => {
                const insightPath = path.join(
                  currFolder,
                  topicName,
                  courseName,
                  workoutName
                );
                const insightFile = fs.readFileSync(insightPath);
                const insight = new Insight({ body: insightFile });
                const insightAspects = insight.tags.filter(tag =>
                  aspects.includes(tag));
                if (insightAspects.length) {
                  insight.aspects = insightAspects;
                  insight.tags = insight.tags.filter(
                    tag => !aspects.includes(tag)
                  );
                  const newInsightFile = insight.render();
                  fs.writeFileSync(insightPath, newInsightFile);
                }
              }))));