file-to-npm-cache

Store a file in the npm cache directory

const cacache = require('cacache');
const fileToNpmCache = require('file-to-npm-cache');

(async () => {
  const cacheInfo = await fileToNpmCache('my-file.txt', 'my-key');
  /*=> {
    key: 'my-key',
    integrity: 'sha512-G31q ... RV3w==',
    path: '/Users/shinnn/.npm/_cacache/content-v2/sha512/1b/7d/ ...',
    size: 1107,
    time: 1539591818472,
    metadata: undefined
  }*/

  const {data} = await cacache.get('/Users/shinnn/.npm', 'my-key');
  // <Buffer ... a gzipped tarball of my-file.txt ...>
})();

Installation

Use npm.

npm install file-to-npm-cache

API

const fileToNpmCache = require('file-to-npm-cache');

fileToNpmCache(path, key [, options])

path: string (a file path)
key: string (a unique key of a cacache-based cache)
options: Object (cacache.put() options)
Return: Promise<Object>

It compresses a file as a gzipped tar, stores it into the npm cache folder and returns a Promise for an Object of the created cache information.

If the target is not a file, it returns a rejected Promise.

(async () => {
  try {
    await fileToNpmCache('/etc', 'key-foo-bar');
  } catch (err) {
    err.message;
    //=> Expected a file path to save it as an npm cache, but the entry at /etc is not a file.
  }
})();

License

ISC License © 2018 Shinnosuke Watanabe