Copy an object between buckets

  namespace 
  
 gcs 
  
 = 
  
 :: 
 google 
 :: 
 cloud 
 :: 
 storage 
 ; 
 using 
  
 :: 
 google 
 :: 
 cloud 
 :: 
 StatusOr 
 ; 
 []( 
 gcs 
 :: 
 Client 
  
 client 
 , 
  
 std 
 :: 
 string 
  
 const 
&  
 source_bucket_name 
 , 
  
 std 
 :: 
 string 
  
 const 
&  
 source_object_name 
 , 
  
 std 
 :: 
 string 
  
 const 
&  
 destination_bucket_name 
 , 
  
 std 
 :: 
 string 
  
 const 
&  
 destination_object_name 
 ) 
  
 { 
  
 StatusOr<gcs 
 :: 
 ObjectMetadata 
>  
 new_copy_meta 
  
 = 
  
 client 
 . 
 CopyObject 
 ( 
 source_bucket_name 
 , 
  
 source_object_name 
 , 
  
 destination_bucket_name 
 , 
  
 destination_object_name 
 ); 
  
 if 
  
 ( 
 ! 
 new_copy_meta 
 ) 
  
 throw 
  
 std 
 :: 
 move 
 ( 
 new_copy_meta 
 ). 
 status 
 (); 
  
 std 
 :: 
 cout 
 << 
 "Successfully copied " 
 << 
 source_object_name 
 << 
 " in bucket " 
 << 
 source_bucket_name 
 << 
 " to bucket " 
 << 
 new_copy_meta 
 - 
> bucket 
 () 
 << 
 " with name " 
 << 
 new_copy_meta 
 - 
> name 
 () 
 << 
 ". 
 \n 
 The full metadata after the copy is: " 
 << 
 * 
 new_copy_meta 
 << 
 " 
 \n 
 " 
 ; 
 } 
 

  using 
  
  Google.Cloud.Storage.V1 
 
 ; 
 using 
  
 System 
 ; 
 public 
  
 class 
  
 CopyFileSample 
 { 
  
 public 
  
 void 
  
 CopyFile 
 ( 
  
 string 
  
 sourceBucketName 
  
 = 
  
 "source-bucket-name" 
 , 
  
 string 
  
 sourceObjectName 
  
 = 
  
 "source-file" 
 , 
  
 string 
  
 destBucketName 
  
 = 
  
 "destination-bucket-name" 
 , 
  
 string 
  
 destObjectName 
  
 = 
  
 "destination-file-name" 
 ) 
  
 { 
  
 var 
  
 storage 
  
 = 
  
  StorageClient 
 
 . 
  Create 
 
 (); 
  
 storage 
 . 
 CopyObject 
 ( 
 sourceBucketName 
 , 
  
 sourceObjectName 
 , 
  
 destBucketName 
 , 
  
 destObjectName 
 ); 
  
 Console 
 . 
 WriteLine 
 ( 
 $"Copied {sourceBucketName}/{sourceObjectName} to " 
  
 + 
  
 $"{destBucketName}/{destObjectName}." 
 ); 
  
 } 
 } 
 

  import 
  
 ( 
  
 "context" 
  
 "fmt" 
  
 "io" 
  
 "time" 
  
 "cloud.google.com/go/storage" 
 ) 
 // copyFile copies an object into specified bucket. 
 func 
  
 copyFile 
 ( 
 w 
  
 io 
 . 
  Writer 
 
 , 
  
 dstBucket 
 , 
  
 srcBucket 
 , 
  
 srcObject 
  
 string 
 ) 
  
 error 
  
 { 
  
 // dstBucket := "bucket-1" 
  
 // srcBucket := "bucket-2" 
  
 // srcObject := "object" 
  
 ctx 
  
 := 
  
 context 
 . 
 Background 
 () 
  
 client 
 , 
  
 err 
  
 := 
  
 storage 
 . 
 NewClient 
 ( 
 ctx 
 ) 
  
 if 
  
 err 
  
 != 
  
 nil 
  
 { 
  
 return 
  
 fmt 
 . 
 Errorf 
 ( 
 "storage.NewClient: %w" 
 , 
  
 err 
 ) 
  
 } 
  
 defer 
  
 client 
 . 
 Close 
 () 
  
 ctx 
 , 
  
 cancel 
  
 := 
  
 context 
 . 
 WithTimeout 
 ( 
 ctx 
 , 
  
 time 
 . 
 Second 
 * 
 10 
 ) 
  
 defer 
  
 cancel 
 () 
  
 dstObject 
  
 := 
  
 srcObject 
  
 + 
  
 "-copy" 
  
 src 
  
 := 
  
 client 
 . 
  Bucket 
 
 ( 
 srcBucket 
 ). 
  Object 
 
 ( 
 srcObject 
 ) 
  
 dst 
  
 := 
  
 client 
 . 
  Bucket 
 
 ( 
 dstBucket 
 ). 
  Object 
 
 ( 
 dstObject 
 ) 
  
 // Optional: set a generation-match precondition to avoid potential race 
  
 // conditions and data corruptions. The request to copy is aborted if the 
  
 // object's generation number does not match your precondition. 
  
 // For a dst object that does not yet exist, set the DoesNotExist precondition. 
  
 dst 
  
 = 
  
 dst 
 . 
 If 
 ( 
 storage 
 . 
  Conditions 
 
 { 
 DoesNotExist 
 : 
  
 true 
 }) 
  
 // If the destination object already exists in your bucket, set instead a 
  
 // generation-match precondition using its generation number. 
  
 // attrs, err := dst.Attrs(ctx) 
  
 // if err != nil { 
  
 // 	return fmt.Errorf("object.Attrs: %w", err) 
  
 // } 
  
 // dst = dst.If(storage.Conditions{GenerationMatch: attrs.Generation}) 
  
 if 
  
 _ 
 , 
  
 err 
  
 := 
  
 dst 
 . 
  CopierFrom 
 
 ( 
 src 
 ). 
 Run 
 ( 
 ctx 
 ); 
  
 err 
  
 != 
  
 nil 
  
 { 
  
 return 
  
 fmt 
 . 
 Errorf 
 ( 
 "Object(%q).CopierFrom(%q).Run: %w" 
 , 
  
 dstObject 
 , 
  
 srcObject 
 , 
  
 err 
 ) 
  
 } 
  
 fmt 
 . 
 Fprintf 
 ( 
 w 
 , 
  
 "Blob %v in bucket %v copied to blob %v in bucket %v.\n" 
 , 
  
 srcObject 
 , 
  
 srcBucket 
 , 
  
 dstObject 
 , 
  
 dstBucket 
 ) 
  
 return 
  
 nil 
 } 
 

  import 
  
 com.google.cloud.storage. BlobId 
 
 ; 
 import 
  
 com.google.cloud.storage. BlobInfo 
 
 ; 
 import 
  
 com.google.cloud.storage. CopyWriter 
 
 ; 
 import 
  
 com.google.cloud.storage. Storage 
 
 ; 
 import 
  
 com.google.cloud.storage. Storage 
. CopyRequest 
 
 ; 
 import 
  
 com.google.cloud.storage. StorageOptions 
 
 ; 
 public 
  
 class 
 CopyObject 
  
 { 
  
 public 
  
 static 
  
 void 
  
 copyObject 
 ( 
  
 String 
  
 projectId 
 , 
  
 String 
  
 sourceBucketName 
 , 
  
 String 
  
 objectName 
 , 
  
 String 
  
 targetBucketName 
 ) 
  
 throws 
  
 Exception 
  
 { 
  
 // The ID of your GCP project 
  
 // String projectId = "your-project-id"; 
  
 // The ID of the bucket the original object is in 
  
 // String sourceBucketName = "your-source-bucket"; 
  
 // The ID of the GCS object to copy 
  
 // String objectName = "your-object-name"; 
  
 // The ID of the bucket to copy the object to 
  
 // String targetBucketName = "target-object-bucket"; 
  
 try 
  
 ( 
  Storage 
 
  
 storage 
  
 = 
  
  StorageOptions 
 
 . 
 newBuilder 
 (). 
 setProjectId 
 ( 
 projectId 
 ). 
 build 
 (). 
  getService 
 
 ()) 
  
 { 
  
  BlobId 
 
  
 sourceId 
  
 = 
  
  BlobId 
 
 . 
 of 
 ( 
 sourceBucketName 
 , 
  
 objectName 
 ); 
  
 // you could change "objectName" to rename the object 
  
  BlobId 
 
  
 targetId 
  
 = 
  
  BlobId 
 
 . 
 of 
 ( 
 targetBucketName 
 , 
  
 objectName 
 ); 
  
 // Recommended: set a generation-match precondition to avoid potential race 
  
 // conditions and data corruptions. The request returns a 412 error if the 
  
 // preconditions are not met. 
  
  Storage 
 
 . 
 BlobTargetOption 
  
 precondition 
 ; 
  
  BlobInfo 
 
  
 existingTarget 
  
 = 
  
 storage 
 . 
 get 
 ( 
 targetBucketName 
 , 
  
 objectName 
 ); 
  
 if 
  
 ( 
 existingTarget 
  
 == 
  
 null 
 ) 
  
 { 
  
 // For a target object that does not yet exist, set the DoesNotExist precondition. 
  
 // This will cause the request to fail if the object is created before the request runs. 
  
 precondition 
  
 = 
  
  Storage 
 
 . 
 BlobTargetOption 
 . 
 doesNotExist 
 (); 
  
 } 
  
 else 
  
 { 
  
 // If the destination already exists in your bucket, instead set a generation-match 
  
 // precondition. This will cause the request to fail if the existing object's generation 
  
 // changes before the request runs. 
  
 precondition 
  
 = 
  
  Storage 
 
 . 
 BlobTargetOption 
 . 
 generationMatch 
 ( 
 existingTarget 
 . 
  getGeneration 
 
 ()); 
  
 } 
  
  CopyRequest 
 
  
 copyRequest 
  
 = 
  
  CopyRequest 
 
 . 
 newBuilder 
 () 
  
 . 
 setSource 
 ( 
 sourceId 
 ) 
  
 . 
 setTarget 
 ( 
 targetId 
 , 
  
 precondition 
 ) 
  
 // limit the number of bytes Cloud Storage will attempt to copy before responding to 
  
 // an individual request. 
  
 // If you see Read Timeout errors, try reducing this value. 
  
 . 
  setMegabytesCopiedPerChunk 
 
 ( 
 2048L 
 ) 
  
 // 2GiB 
  
 . 
 build 
 (); 
  
  CopyWriter 
 
  
 copyWriter 
  
 = 
  
 storage 
 . 
 copy 
 ( 
 copyRequest 
 ); 
  
  BlobInfo 
 
  
 successfulCopyResult 
  
 = 
  
 copyWriter 
 . 
  getResult 
 
 (); 
  
 System 
 . 
 out 
 . 
 printf 
 ( 
  
 "Copied object gs://%s/%s to %s%n" 
 , 
  
 sourceBucketName 
 , 
  
 objectName 
 , 
  
 successfulCopyResult 
 . 
  getBlobId 
 
 (). 
  toGsUtilUriWithGeneration 
 
 ()); 
  
 } 
  
 } 
 } 
 

  /** 
 * TODO(developer): Uncomment the following lines before running the sample. 
 */ 
 // The ID of the bucket the original file is in 
 // const srcBucketName = 'your-source-bucket'; 
 // The ID of the GCS file to copy 
 // const srcFilename = 'your-file-name'; 
 // The ID of the bucket to copy the file to 
 // const destBucketName = 'target-file-bucket'; 
 // The ID of the GCS file to create 
 // const destFileName = 'target-file-name'; 
 // Imports the Google Cloud client library 
 const 
  
 { 
 Storage 
 } 
  
 = 
  
 require 
 ( 
 ' @google-cloud/storage 
' 
 ); 
 // Creates a client 
 const 
  
 storage 
  
 = 
  
 new 
  
 Storage 
 (); 
 async 
  
 function 
  
 copyFile 
 () 
  
 { 
  
 const 
  
 copyDestination 
  
 = 
  
 storage 
 . 
 bucket 
 ( 
 destBucketName 
 ). 
 file 
 ( 
 destFileName 
 ); 
  
 // Optional: 
  
 // Set a generation-match precondition to avoid potential race conditions 
  
 // and data corruptions. The request to copy is aborted if the object's 
  
 // generation number does not match your precondition. For a destination 
  
 // object that does not yet exist, set the ifGenerationMatch precondition to 0 
  
 // If the destination object already exists in your bucket, set instead a 
  
 // generation-match precondition using its generation number. 
  
 const 
  
 copyOptions 
  
 = 
  
 { 
  
 preconditionOpts 
 : 
  
 { 
  
 ifGenerationMatch 
 : 
  
 destinationGenerationMatchPrecondition 
 , 
  
 }, 
  
 }; 
  
 // Copies the file to the other bucket 
  
 await 
  
 storage 
  
 . 
 bucket 
 ( 
 srcBucketName 
 ) 
  
 . 
 file 
 ( 
 srcFilename 
 ) 
  
 . 
  copy 
 
 ( 
 copyDestination 
 , 
  
 copyOptions 
 ); 
  
 console 
 . 
 log 
 ( 
  
 `gs:// 
 ${ 
 srcBucketName 
 } 
 / 
 ${ 
 srcFilename 
 } 
 copied to gs:// 
 ${ 
 destBucketName 
 } 
 / 
 ${ 
 destFileName 
 } 
 ` 
  
 ); 
 } 
 copyFile 
 (). 
 catch 
 ( 
 console 
 . 
 error 
 ); 
 

  use Google\Cloud\Storage\StorageClient; 
 /** 
 * Copy an object to a new name and/or bucket. 
 * 
 * @param string $bucketName The name of your Cloud Storage bucket. 
 *        (e.g. 'my-bucket') 
 * @param string $objectName The name of your Cloud Storage object. 
 *        (e.g. 'my-object') 
 * @param string $newBucketName The destination bucket name. 
 *        (e.g. 'my-other-bucket') 
 * @param string $newObjectName The destination object name. 
 *        (e.g. 'my-other-object') 
 */ 
 function copy_object(string $bucketName, string $objectName, string $newBucketName, string $newObjectName): void 
 { 
 $storage = new StorageClient(); 
 $bucket = $storage->bucket($bucketName); 
 $object = $bucket->object($objectName); 
 $object->copy($newBucketName, ['name' => $newObjectName]); 
 printf('Copied gs://%s/%s to gs://%s/%s' . PHP_EOL, 
 $bucketName, $objectName, $newBucketName, $newObjectName); 
 } 
 

  from 
  
 google.cloud 
  
 import 
  storage 
 
 def 
  
 copy_blob 
 ( 
 bucket_name 
 , 
 blob_name 
 , 
 destination_bucket_name 
 , 
 destination_blob_name 
 , 
 ): 
  
 """Copies a blob from one bucket to another with a new name.""" 
 # bucket_name = "your-bucket-name" 
 # blob_name = "your-object-name" 
 # destination_bucket_name = "destination-bucket-name" 
 # destination_blob_name = "destination-object-name" 
 storage_client 
 = 
  storage 
 
 . 
  Client 
 
 () 
 source_bucket 
 = 
 storage_client 
 . 
  bucket 
 
 ( 
 bucket_name 
 ) 
 source_blob 
 = 
 source_bucket 
 . 
 blob 
 ( 
 blob_name 
 ) 
 destination_bucket 
 = 
 storage_client 
 . 
  bucket 
 
 ( 
 destination_bucket_name 
 ) 
 # Optional: set a generation-match precondition to avoid potential race conditions 
 # and data corruptions. The request to copy is aborted if the object's 
 # generation number does not match your precondition. For a destination 
 # object that does not yet exist, set the if_generation_match precondition to 0. 
 # If the destination object already exists in your bucket, set instead a 
 # generation-match precondition using its generation number. 
 # There is also an `if_source_generation_match` parameter, which is not used in this example. 
 destination_generation_match_precondition 
 = 
 0 
 blob_copy 
 = 
 source_bucket 
 . 
  copy_blob 
 
 ( 
 source_blob 
 , 
 destination_bucket 
 , 
 destination_blob_name 
 , 
 if_generation_match 
 = 
 destination_generation_match_precondition 
 , 
 ) 
 print 
 ( 
 "Blob 
 {} 
 in bucket 
 {} 
 copied to blob 
 {} 
 in bucket 
 {} 
 ." 
 . 
 format 
 ( 
 source_blob 
 . 
 name 
 , 
 source_bucket 
 . 
 name 
 , 
 blob_copy 
 . 
 name 
 , 
 destination_bucket 
 . 
 name 
 , 
 ) 
 ) 
 

  def 
  
 copy_file 
  
 source_bucket_name 
 :, 
  
 source_file_name 
 :, 
  
 destination_bucket_name 
 :, 
  
 destination_file_name 
 : 
  
 # The ID of the bucket the original object is in 
  
 # source_bucket_name = "source-bucket-name" 
  
 # The ID of the GCS object to copy 
  
 # source_file_name = "source-file-name" 
  
 # The ID of the bucket to copy the object to 
  
 # destination_bucket_name = "destination-bucket-name" 
  
 # The ID of the new GCS object 
  
 # destination_file_name = "destination-file-name" 
  
 require 
  
 "google/cloud/storage" 
  
 storage 
  
 = 
  
 Google 
 :: 
 Cloud 
 :: 
  Storage 
 
 . 
  new 
 
  
 bucket 
  
 = 
  
 storage 
 . 
 bucket 
  
 source_bucket_name 
 , 
  
 skip_lookup 
 : 
  
 true 
  
 file 
  
 = 
  
 bucket 
 . 
  file 
 
  
 source_file_name 
  
 destination_bucket 
  
 = 
  
 storage 
 . 
 bucket 
  
 destination_bucket_name 
  
 destination_file 
  
 = 
  
 file 
 . 
  copy 
 
  
 destination_bucket 
 . 
 name 
 , 
  
 destination_file_name 
  
 puts 
  
 " 
 #{ 
 file 
 . 
 name 
 } 
 in 
 #{ 
 bucket 
 . 
 name 
 } 
 copied to " 
  
 \ 
  
 " 
 #{ 
 destination_file 
 . 
 name 
 } 
 in 
 #{ 
 destination_bucket 
 . 
 name 
 } 
 " 
 end