moveConfigs.js

// Usage: node moveConfigs.js ../path/to/project

const editJsonFile = require("edit-json-file");
const fs = require("fs");
const path = require("path");

const folder = process.argv[2];
const getPath = (fileName) => path.join(__dirname, folder, fileName);

const packageFile = getPath("package.json");
console.log(packageFile);
const package = editJsonFile(packageFile);

const processKey = (key, processor) => {
  const data = package.get(key);
  if (data) {
    const remove = processor(data);
    if (remove !== false) {
      package.unset(key);
    }
  }
};

const json = (data) => JSON.stringify(data, null, 2);

const writeFile = (fileName, data) => {
  const fullPath = getPath(fileName);
  fs.writeFile(fullPath, data, (err) => {
    if (err) return console.error(err);
    console.log("writing", fileName);
  });
};

const writeJson = (fileName, data) => writeFile(fileName, json(data) + "\n");

const writeJs = (fileName, data) => {
  const string = `module.exports = ${json(data)}\n`;
  writeFile(fileName, string);
};

const moveToJson = (key, fileName) =>
  processKey(key, (data) => {
    writeJson(fileName, data);
  });

const moveToJs = (key, fileName) =>
  processKey(key, (data) => {
    writeJs(fileName, data);
  });

moveToFile = (key, fileName) =>
  processKey(key, (data) => {
    const string = data.join("\n") + "\n";
    writeFile(fileName, string);
  });

moveToJson("prettier", ".prettierrc");
moveToJs("jest", "jest.config.js");
moveToJson("husky", ".huskyrc");
moveToJson("lint-staged", ".lintstagedrc");
moveToFile("eslintIgnore", ".eslintignore");
moveToJson("commitlint", ".commitlintrc.json");
moveToJson("eslintConfig", ".eslintrc.json");

package.save();