rename.js

'use strict'
const tar = require('./')
const fs = require('fs')
const rimraf = require('rimraf')
const mkdirp = require('mkdirp')

rimraf.sync('input')
rimraf.sync('output')
mkdirp.sync('input/foo')
mkdirp.sync('output/foo')
fs.writeFileSync('input/foo/bar', 'this is bar\n')

tar.c({ file: 'foo.tgz', gzip: true, sync: true, C: 'input' }, ['foo'])
tar.x({ file: 'foo.tgz', sync: true, C: 'output', onentry: entry => {
  if (entry.path === 'foo/bar')
    entry.path = 'foo/xyz'
}})

$ tree input output
input
└── foo/
    └── bar
output
└── foo/
    └── xyz

2 directories, 2 files