chore: replace pify with Util.promisify (google#232)

Author: aabmass

package-lock.json

@@ -35,7 +35,6 @@
     "findit2": "^2.2.3",
     "nan": "^2.17.0",
     "p-limit": "^3.0.0",
-    "pify": "^5.0.0",
     "protobufjs": "~7.0.0",
     "source-map": "~0.8.0-beta.0",
     "split": "^1.0.1"
@@ -44,7 +43,6 @@
     "@types/mocha": "^9.0.0",
     "@types/node": "^16.0.0",
     "@types/p-limit": "^2.0.0",
-    "@types/pify": "^5.0.0",
     "@types/pretty-ms": "^4.0.0",
     "@types/request": "^2.47.1",
     "@types/sinon": "^10.0.0",

package.json

@@ -14,12 +14,12 @@
  * limitations under the License.
  */
 
-import * as pify from 'pify';
+import {promisify} from 'util';
 import {gzip, gzipSync} from 'zlib';
 
 import {perftools} from '../../proto/profile';
 
-const gzipPromise = pify(gzip);
+const gzipPromise = promisify(gzip);
 
 export async function encode(
   profile: perftools.profiles.IProfile

ts/src/profile-encoder.ts

@@ -22,12 +22,12 @@
 import * as fs from 'fs';
 import * as path from 'path';
 import * as sourceMap from 'source-map';
+import {promisify} from 'util';
 
 import * as scanner from '../../third_party/cloud-debug-nodejs/src/agent/io/scanner';
 
-const pify = require('pify');
 const pLimit = require('p-limit');
-const readFile = pify(fs.readFile);
+const readFile = promisify(fs.readFile);
 
 const CONCURRENCY = 10;
 const MAP_EXT = '.map';

ts/src/sourcemapper/sourcemapper.ts

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import * as pify from 'pify';
+import {promisify} from 'util';
 import {gunzip as gunzipPromise, gunzipSync} from 'zlib';
 
 import {perftools} from '../../proto/profile';
@@ -23,7 +23,7 @@ import {encode, encodeSync} from '../src/profile-encoder';
 import {decodedTimeProfile, timeProfile} from './profiles-for-tests';
 
 const assert = require('assert');
-const gunzip = pify(gunzipPromise);
+const gunzip = promisify(gunzipPromise);
 
 describe('profile-encoded', () => {
   describe('encode', () => {