fix: use minizlib instead of core zlib

Author: isaacs

index.js

@@ -10,7 +10,7 @@ const JSONStream = require('minipass-json-stream')
 const npa = require('npm-package-arg')
 const qs = require('querystring')
 const url = require('url')
-const zlib = require('zlib')
+const zlib = require('minizlib')
 
 module.exports = regFetch
 function regFetch (uri, opts) {
@@ -40,18 +40,19 @@ function regFetch (uri, opts) {
  } else if (body && !headers['content-type']) {
  headers['content-type'] = 'application/octet-stream'
  }
+
  if (opts.gzip) {
  headers['content-encoding'] = 'gzip'
  if (bodyIsStream) {
- const gz = zlib.createGzip()
- body.on('error', err => gz.emit('error', err))
+ const gz = new zlib.Gzip()
+ body.on('error', /* istanbul ignore next: unlikely and hard to test */
+ err => gz.emit('error', err))
  body = body.pipe(gz)
  } else {
- body = new Promise((resolve, reject) => {
- zlib.gzip(body, (err, gz) => err ? reject(err) : resolve(gz))
- })
+ body = new zlib.Gzip().end(body).concat()
  }
  }
+
  if (opts.query) {
  let q = opts.query
  if (typeof q === 'string') {

package.json

@@ -36,6 +36,7 @@
  "minipass": "^3.0.0",
  "minipass-fetch": "^1.1.2",
  "minipass-json-stream": "^1.0.1",
+ "minizlib": "^2.0.0",
  "npm-package-arg": "^6.1.0",
  "safe-buffer": "^5.2.0"
  },