为存储桶启用对象版本控制

为 Cloud Storage 存储分区启用对象版本控制。

深入探索

如需查看包含此代码示例的详细文档，请参阅以下内容：

• 使用对象版本控制

代码示例

C++

如需了解详情，请参阅 Cloud Storage C++ API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

namespace gcs = ::google::cloud::storage;
using ::google::cloud::StatusOr;
[](gcs::Client client, std::string const& bucket_name) {
  StatusOr<gcs::BucketMetadata> original =
      client.GetBucketMetadata(bucket_name);
  if (!original) throw std::move(original).status();

  StatusOr<gcs::BucketMetadata> patched = client.PatchBucket(
      bucket_name,
      gcs::BucketMetadataPatchBuilder().SetVersioning(
          gcs::BucketVersioning{true}),
      gcs::IfMetagenerationMatch(original->metageneration()));
  if (!patched) throw std::move(patched).status();

  if (patched->versioning().has_value()) {
    std::cout << "Object versioning for bucket " << bucket_name << " is "
              << (patched->versioning()->enabled ? "enabled" : "disabled")
              << "\n";
  } else {
    std::cout << "Object versioning for bucket " << bucket_name
              << " is disabled.\n";
  }
}

C#

如需了解详情，请参阅 Cloud Storage C# API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

using Google.Apis.Storage.v1.Data;
using Google.Cloud.Storage.V1;
using System;

public class BucketEnableVersioningSample
{
	public Bucket BucketEnableVersioning(string bucketName = "your-bucket-name")
	{
		var storage = StorageClient.Create();
		var bucket = storage.GetBucket(bucketName);

		if (bucket.Versioning == null)
		{
			bucket.Versioning = new Bucket.VersioningData();
		}
		bucket.Versioning.Enabled = true;

		bucket = storage.UpdateBucket(bucket);
		Console.WriteLine($"Versioning is now enabled for bucket {bucketName}.");
		return bucket;
	}
}

Go

如需了解详情，请参阅 Cloud Storage Go API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

import (
	"context"
	"fmt"
	"io"
	"time"

	"cloud.google.com/go/storage"
)

// enableVersioning enables object versioning on a bucket.
func enableVersioning(w io.Writer, bucketName string) error {
	// bucketName := "bucket-name"
	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()

	bucket := client.Bucket(bucketName)
	bucketAttrsToUpdate := storage.BucketAttrsToUpdate{
		VersioningEnabled: true,
	}
	if _, err := bucket.Update(ctx, bucketAttrsToUpdate); err != nil {
		return fmt.Errorf("Bucket(%q).Update: %w", bucketName, err)
	}
	fmt.Fprintf(w, "Versioning was enabled for %v\n", bucketName)
	return nil
}

Java

如需了解详情，请参阅 Cloud Storage Java API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

import com.google.cloud.storage.Bucket;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageOptions;

public class EnableBucketVersioning {
  public static void enableBucketVersioning(String projectId, String bucketName) {
    // The ID of your GCP project
    // String projectId = "your-project-id";

    // The ID of your GCS bucket
    // String bucketName = "your-unique-bucket-name";

    Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService();
    Bucket bucket = storage.get(bucketName);
    bucket.toBuilder().setVersioningEnabled(true).build().update();

    System.out.println("Versioning is now enabled for bucket " + bucketName);
  }
}

Node.js

如需了解详情，请参阅 Cloud Storage Node.js API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

/**
 * TODO(developer): Uncomment the following lines before running the sample.
 */
// The ID of your GCS bucket
// const bucketName = 'your-unique-bucket-name';

// Imports the Google Cloud client library
const {Storage} = require('@google-cloud/storage');

// Creates a client
const storage = new Storage();

async function enableBucketVersioning() {
  await storage.bucket(bucketName).setMetadata({
    versioning: {
      enabled: true,
    },
  });

  console.log(`Versioning is enabled for bucket ${bucketName}`);
}

enableBucketVersioning().catch(console.error);

PHP

如需了解详情，请参阅 Cloud Storage PHP API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

use Google\Cloud\Storage\StorageClient;

/**
 * Enable versioning on the specified bucket.
 *
 * @param string $bucketName The name of your Cloud Storage bucket.
 *        (e.g. 'my-bucket')
 */
function enable_versioning(string $bucketName): void
{
    $storage = new StorageClient();
    $bucket = $storage->bucket($bucketName);
    $bucket->update([
        'versioning' => [
            'enabled' => true,
        ]
    ]);

    printf('Versioning is now enabled for bucket %s', $bucketName);
}

Python

如需了解详情，请参阅 Cloud Storage Python API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

from google.cloud import storage


def enable_versioning(bucket_name):
    """Enable versioning for this bucket."""
    # bucket_name = "my-bucket"

    storage_client = storage.Client()

    bucket = storage_client.get_bucket(bucket_name)
    bucket.versioning_enabled = True
    bucket.patch()

    print(f"Versioning was enabled for bucket {bucket.name}")
    return bucket

Ruby

如需了解详情，请参阅 Cloud Storage Ruby API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

def enable_versioning bucket_name:
  # The ID of your GCS bucket
  # bucket_name = "your-unique-bucket-name"

  require "google/cloud/storage"

  storage = Google::Cloud::Storage.new
  bucket = storage.bucket bucket_name

  bucket.versioning = true

  puts "Versioning was enabled for bucket #{bucket_name}"
end

后续步骤

如需搜索和过滤其他 Google Cloud 产品的代码示例，请参阅 Google Cloud 示例浏览器。