fix: remove extraneous mime-types package in favor of mime (#2435)

* fix: remove extraneous mime-types package in favor of mime

* remove compressible dependency

* fix merge conflicts, fix tests

* add comment

Author: ddelgrosso1

package.json

@@ -77,14 +77,12 @@
     "@google-cloud/promisify": "^4.0.0",
     "abort-controller": "^3.0.0",
     "async-retry": "^1.3.3",
-    "compressible": "^2.0.12",
     "duplexify": "^4.1.3",
     "ent": "^2.2.0",
     "fast-xml-parser": "^4.3.0",
     "gaxios": "^6.0.2",
     "google-auth-library": "^9.6.3",
     "mime": "^3.0.0",
-    "mime-types": "^2.0.8",
     "p-limit": "^3.0.1",
     "retry-request": "^7.0.0",
     "teeny-request": "^9.0.0",
@@ -97,10 +95,8 @@
     "@grpc/grpc-js": "^1.0.3",
     "@grpc/proto-loader": "^0.7.0",
     "@types/async-retry": "^1.4.3",
-    "@types/compressible": "^2.0.0",
     "@types/ent": "^2.2.1",
     "@types/mime": "^3.0.0",
-    "@types/mime-types": "^2.1.0",
     "@types/mocha": "^9.1.1",
     "@types/mockery": "^1.4.29",
     "@types/node": "^20.4.4",

src/bucket.ts

@@ -29,7 +29,7 @@ import {paginator} from '@google-cloud/paginator';
 import {promisifyAll} from '@google-cloud/promisify';
 import * as fs from 'fs';
 import * as http from 'http';
-import * as mime from 'mime-types';
+import mime from 'mime';
 import * as path from 'path';
 import pLimit from 'p-limit';
 import {promisify} from 'util';
@@ -1625,7 +1625,8 @@ class Bucket extends ServiceObject<Bucket, BucketMetadata> {
     callback = callback || util.noop;
 
     if (!destinationFile.metadata.contentType) {
-      const destinationContentType = mime.contentType(destinationFile.name);
+      const destinationContentType =
+        mime.getType(destinationFile.name) || undefined;
 
       if (destinationContentType) {
         destinationFile.metadata.contentType = destinationContentType;

src/file.ts

@@ -24,7 +24,6 @@ import {
 } from './nodejs-common/index.js';
 import {promisifyAll} from '@google-cloud/promisify';
 
-import compressible from 'compressible';
 import * as crypto from 'crypto';
 import * as fs from 'fs';
 import mime from 'mime';
@@ -326,6 +325,27 @@ export const STORAGE_POST_POLICY_BASE_URL = 'https://storage.googleapis.com';
  */
 const GS_URL_REGEXP = /^gs:\/\/([a-z0-9_.-]+)\/(.+)$/;
 
+/**
+ * @private
+ * This regex will match compressible content types. These are primarily text/*, +json, +text, +xml content types.
+ * This was based off of mime-db and may periodically need to be updated if new compressible content types become
+ * standards.
+ */
+const COMPRESSIBLE_MIME_REGEX = new RegExp(
+  [
+    /^text\/|application\/ecmascript|application\/javascript|application\/json/,
+    /|application\/postscript|application\/rtf|application\/toml|application\/vnd.dart/,
+    /|application\/vnd.ms-fontobject|application\/wasm|application\/x-httpd-php|application\/x-ns-proxy-autoconfig/,
+    /|application\/x-sh(?!ockwave-flash)|application\/x-tar|application\/x-virtualbox-hdd|application\/x-virtualbox-ova|application\/x-virtualbox-ovf/,
+    /|^application\/x-virtualbox-vbox$|application\/x-virtualbox-vdi|application\/x-virtualbox-vhd|application\/x-virtualbox-vmdk/,
+    /|application\/xml|application\/xml-dtd|font\/otf|font\/ttf|image\/bmp|image\/vnd.adobe.photoshop|image\/vnd.microsoft.icon/,
+    /|image\/vnd.ms-dds|image\/x-icon|image\/x-ms-bmp|message\/rfc822|model\/gltf-binary|\+json|\+text|\+xml|\+yaml/,
+  ]
+    .map(r => r.source)
+    .join(''),
+  'i'
+);
+
 export interface FileOptions {
   crc32cGenerator?: CRC32CValidatorGenerator;
   encryptionKey?: string | Buffer;
@@ -1980,7 +2000,7 @@ class File extends ServiceObject<File, FileMetadata> {
     let gzip = options.gzip;
 
     if (gzip === 'auto') {
-      gzip = compressible(options!.metadata!.contentType || '');
+      gzip = COMPRESSIBLE_MIME_REGEX.test(options!.metadata!.contentType || '');
     }
 
     if (gzip) {

test/bucket.ts

@@ -22,7 +22,7 @@ import {
 import assert from 'assert';
 import * as fs from 'fs';
 import {describe, it, before, beforeEach, after, afterEach} from 'mocha';
-import * as mime from 'mime-types';
+import mime from 'mime';
 import pLimit from 'p-limit';
 import * as path from 'path';
 import proxyquire from 'proxyquire';
@@ -704,7 +704,7 @@ describe('Bucket', () => {
       destination.request = (reqOpts: DecorateRequestOptions) => {
         assert.strictEqual(
           reqOpts.json.destination.contentType,
-          mime.contentType(destination.name)
+          mime.getType(destination.name)
         );
 
         done();
@@ -735,7 +735,7 @@ describe('Bucket', () => {
       destination.request = (reqOpts: DecorateRequestOptions) => {
         assert.strictEqual(
           reqOpts.json.destination.contentType,
-          mime.contentType(destination.name)
+          mime.getType(destination.name)
         );
 
         done();
@@ -751,7 +751,10 @@ describe('Bucket', () => {
       destination.request = (reqOpts: DecorateRequestOptions) => {
         assert.strictEqual(reqOpts.uri, '/compose');
         assert.deepStrictEqual(reqOpts.json, {
-          destination: {contentType: undefined, contentEncoding: undefined},
+          destination: {
+            contentType: mime.getType(destination.name) || undefined,
+            contentEncoding: undefined,
+          },
           sourceObjects: [{name: sources[0].name}, {name: sources[1].name}],
         });