Module to find and replace parts of a file.

findAndReplace.js

const fs = require('fs');
const signale = require('signale');

module.exports = (filePath, regex, replacement) =>
  new Promise((yep, nope) => {
    fs.readFile(filePath, 'utf8', (err, data) => {
      if (err) {
        console.log(err); // eslint-disable-line
        nope(err);
      }
      if (!data) {
        signale.fatal(filePath);
        signale.fatal(new Error('File Not Found'));
        return;
      }
      const result = data.replace(new RegExp(regex), replacement);
      fs.writeFile(filePath, result, 'utf8', writeError => {
        if (writeError) {
          console.log(writeError); // eslint-disable-line
          nope(writeError);
        }
        yep('success');
      });
    });
  });