Prepend text to a file / group of files

Example(s):

• prepend-header src/foo.js 'header.config.js' (single file)
• prepend-header src/**/*.js 'header.config.js' (all files matching glob).

Successful Output should look like:

[FILES from src/**/*]
Prepended to src/after1.js
Prepended to src/foo/after2.js
Prepended to src/foo/after3.js

Local Project:

• npm i prepend-header --save-dev

2. create a header.config.js in your root that looks something like:

const year = new Date().getFullYear();
const text = `/*******************************************************************************
 * Licensed Materials - Property of IBM
 * (c) Copyright IBM Corporation ${year}. All Rights Reserved.
 *
 * Note to U.S. Government Users Restricted Rights:
 * Use, duplication or disclosure restricted by GSA ADP Schedule
 * Contract with IBM Corp.
 *******************************************************************************/
`;

const match = 'Reserved'; // avoid double-prepends. if this word exists in a file, that file gets skipped.
module.exports = {
  text,
  match,
};

3. In package.json do:

"scripts" {
  "prepend-header": "prepend-header src/**/*.js header.config.js",
}

4. npm run prepend-header

Run with npx

1. create a header.config.js in your current working directory see above for format)
2. npx prepend-header src/**/*.js header.config.js

Releasing

• npm version patch
• npm publish
• git push --tags
• create GH release