Changelog find and replace script

find-and-replace-script.js

#!/usr/bin/env node
/* eslint-disable no-console */
/* eslint import/no-extraneous-dependencies: ["error", {"devDependencies": true}] */
const fs = require('fs');
const path = require('path');
const packagePaths = require('../peer-dependency-generator/getPackagePaths');
const findAndReplace = require('../peer-dependency-generator/findAndReplace');

// Generate the markdown to display peerDependencies information for each package
packagePaths.forEach((packagePath) => {
  const changelogFile = path.resolve(packagePath, 'CHANGELOG.md');

  if (!fs.existsSync(changelogFile)) {
    return; /* eslint-disable-line no-useless-return */
  }

  fs.readFile(changelogFile, 'utf8', (err) => {
    if (err) {
      console.error(`Error reading file ${changelogFile} ${err}\n`);
    } else {
      const content = `Unreleased
----------
### Added
* Added documentation on required peerDependencies`;
      const regex = /Unreleased\n----------/g;

      findAndReplace({
        file: changelogFile, regex, content,
      });
    }
  });
});

old-changelog-update-code.js

const replace = require('replace-in-file');

const ml = `Unreleased
----------

9.0.0 - (April 20, 2018)
------------------
### Changed
* Minor dependency version bump`;


const options = {
  files: 'packages/**/CHANGELOG.md',
  from: /Unreleased\n----------/g,
  to: ml,
};

replace(options)
  .then((changes) => {
    console.log('Modified files:', changes.join(', '));
  })
  .catch((error) => {
    console.error('Error occurred:', error);
  });