feat: allow setting contentEncoding during compose (#2431)

* feat: allow setting contentEncoding during compose

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: zuozp8

src/bucket.ts

@@ -1658,6 +1658,7 @@ class Bucket extends ServiceObject<Bucket, BucketMetadata> {
         json: {
           destination: {
             contentType: destinationFile.metadata.contentType,
+            contentEncoding: destinationFile.metadata.contentEncoding,
           },
           sourceObjects: (sources as File[]).map(source => {
             const sourceObject = {

src/nodejs-common/service.ts

@@ -271,9 +271,8 @@ export class Service {
     };
 
     if (reqOpts[GCCL_GCS_CMD_KEY]) {
-      reqOpts.headers[
-        'x-goog-api-client'
-      ] += ` gccl-gcs-cmd/${reqOpts[GCCL_GCS_CMD_KEY]}`;
+      reqOpts.headers['x-goog-api-client'] +=
+        ` gccl-gcs-cmd/${reqOpts[GCCL_GCS_CMD_KEY]}`;
     }
 
     if (reqOpts.shouldReturnStream) {

src/resumable-upload.ts

@@ -933,9 +933,8 @@ export class Upload extends Writable {
       // `Content-Length` for multiple chunk uploads is the size of the chunk,
       // not the overall object
       headers['Content-Length'] = bytesToUpload;
-      headers[
-        'Content-Range'
-      ] = `bytes ${this.offset}-${endingByte}/${totalObjectSize}`;
+      headers['Content-Range'] =
+        `bytes ${this.offset}-${endingByte}/${totalObjectSize}`;
     } else {
       headers['Content-Range'] = `bytes ${this.offset}-*/${this.contentLength}`;
     }

src/transfer-manager.ts

@@ -223,9 +223,8 @@ class XMLMultiPartUploadHelper implements MultiPartUploadHelper {
 
         // Prepend command feature to value, if not already there
         if (!value.includes(GCCL_GCS_CMD_FEATURE.UPLOAD_SHARDED)) {
-          headers[
-            key
-          ] = `${value} gccl-gcs-cmd/${GCCL_GCS_CMD_FEATURE.UPLOAD_SHARDED}`;
+          headers[key] =
+            `${value} gccl-gcs-cmd/${GCCL_GCS_CMD_FEATURE.UPLOAD_SHARDED}`;
         }
       } else if (key.toLocaleLowerCase().trim() === 'user-agent') {
         userAgentFound = true;

test/bucket.ts

@@ -745,13 +745,13 @@ describe('Bucket', () => {
     });
 
     it('should make correct API request', done => {
-      const sources = [bucket.file('1.txt'), bucket.file('2.txt')];
-      const destination = bucket.file('destination.txt');
+      const sources = [bucket.file('1.foo'), bucket.file('2.foo')];
+      const destination = bucket.file('destination.foo');
 
       destination.request = (reqOpts: DecorateRequestOptions) => {
         assert.strictEqual(reqOpts.uri, '/compose');
         assert.deepStrictEqual(reqOpts.json, {
-          destination: {contentType: mime.contentType(destination.name)},
+          destination: {contentType: undefined, contentEncoding: undefined},
           sourceObjects: [{name: sources[0].name}, {name: sources[1].name}],
         });