stopped using node-tar

lib/install/installer/registry.js

@@ -1,26 +1,24 @@
-const https = require('https')
-const tar = require('tar')
-const { URL } = require('url')
+const request = require('request')
+const tar = require('tar-fs')
+const fs = require('fs')
+const gunzip = require('gunzip-maybe')
 const npmrc = require('../../utils/npmrc')
 
 module.exports = (pkg, cwd) => {
-  const url = new URL(pkg.tarball)
+  const options = {
+    url: pkg.tarball,
+    headers: {
+      'User-Agent': npmrc.userAgent
+    }
+  }
   return new Promise((resolve, reject) => {
-    https.get({
-      host: url.host,
-      path: url.pathname,
-      headers: npmrc.userAgent
-    }, (res) => {
-      res.pipe(
-        tar.extract({
-          cwd: cwd,
-          sync: true,
-          strip: 1
-        })
-      )
-      res.on('end', () => {
-        resolve()
-      })
-    }).on('error', reject)
+    const extract = tar.extract(cwd, {strip: 1})
+    extract.on('finish', function() {
+      resolve()
+    })
+    request.get(options)
+      .pipe(gunzip())
+      .pipe(extract)
+      .on('error', reject)
   })
 }

package.json

@@ -33,7 +33,6 @@
     "request": "^2.81.0",
     "require-directory": "^2.1.1",
     "semver": "^5.3.0",
-    "tar": "^3.1.5",
     "tar-fs": "^1.15.3",
     "tar-stream": "^1.5.4",
     "which": "^1.2.14",