script for mass moving files to <date-published>-<filename>

moveFilesToNameWithDate.js

/**
 * utility I used to rename all of my files based on the date
 * so that I can use netlify+dropbox to "schedule" posts
 * Example...
 * original filepath: Apps/chaseadams.io/articles/2019/yolo.md
 * frontmatter contains "date: "2019-01-01"
 * new filepath: Apps/chaseadams.io/articles/2019/2019-01-01-yolo.md
 */
const fs = require("fs");
const path = require("path");

const root = "./Apps/chaseadams.io/articles";

walkTree(root);

function walkTree(prevPath) {
  fs.readdir(prevPath, (err, files) => {
    if (err) {
      console.error(err);
      process.exit(1);
    }
    files.forEach(filepath => {
      const newPath = path.join(prevPath, filepath);
      fs.stat(newPath, (err, stats) => {
        if (err) {
          console.error(err);
          process.exit(1);
        }
        if (stats.isDirectory()) {
          walkTree(newPath);
        } else {
          if (!newPath.match(/\d{4}-\d{2}-\d{2}/)) {
            fs.readFile(newPath, "utf8", (err, contents) => {
              const frontmatter = contents
                .split("---", 2)
                .splice(1)[0]
                .split("\n")
                .forEach(date => {
                  if (date.startsWith("date: ")) {
                    date = date.split(": ")[1].replace(/"/g, "");
                    if (date.match(/T/)) {
                      date = date.split("T")[0];
                    }
                    let newNewPath = newPath.split("/");
                    newNewPath[newNewPath.length - 1] = `${date}-${
                      newNewPath[newNewPath.length - 1]
                    }`;
                    newNewPath = newNewPath.join("/");
                    fs.rename(newPath, newNewPath, err => {
                      if (err) {
                        console.error(err);
                        process.exit(1);
                      }
                      console.log(
                        `${newPath} successfully renamed to ${newNewPath}`
                      );
                    });
                  }
                });
            });
          }
        }
      });
    });
  });
}