我有多個版本的物件，我正在嘗試比較可以洗掉哪些版本。我基本上想洗掉與當前版本具有相同大小的任何版本。我遇到的問題是我無法找出哪個回傳的版本是最新的/當前的。
如果我使用 aws cli，它會回傳一個名為“IsLatest”的欄位，但顯然 boto3 版本沒有。aws cli 也總是回傳 StorageClass 而 boto3 在某些情況下顯然不會。
從 boto3 回傳：
{'ResponseMetadata': {'RequestId': 'PHQFMDCF3AHQM6R1', 'HostId': 'b7PmgsVm6y30wfA9GExS Rc659cu1DI4YFec3i7tvDBew8ob5tY0Mtz6q yC9nTwdmAoykdV7Lo=', 'HTTPStatusCode': 200, 'HTTPHeaders': {'x-amz-id-2': 'b7PmgsVm6y30wfA9GExS Rc659cu1DI4YFeR3i7tVDBeu8ab5tY0Mtz6X yC9nTwdmAoykdV7Lo=', 'x-amz-request-id': 'PHQFMDTB32HQM6R1', 'date': 'Sat, 19 Feb 2022 22:42:14 GMT', 'last-modified': 'Thu, 17 Feb 2022 17:02:54 GMT', 'etag': '"55f146382684970d4970ae31b3d4b310"', 'x-amz-server-side-encryption': 'AES256', 'x-amz-version-id': 'gHm2D2uuosJQS6GpmuySU9uNSXN84cq9', 'accept-ranges': 'bytes', 'content-type': 'text/plain', 'server': 'AmazonS3', 'content-length': '969'}, 'RetryAttempts': 0}, 'AcceptRanges': 'bytes', 'LastModified': datetime.datetime(2022, 2, 17, 17, 2, 54, tzinfo=tzutc()), 'ContentLength': 969, 'ETag': '"55f141382684970d4970ae31b3d4b310"', 'VersionId': 'gHa2D2uuosJQS6GpmuySU9uNSXN84cR9', 'ContentType': 'text/plain', 'ServerSideEncryption': 'AES256', 'Metadata': {}, 'Body': <botocore.response.StreamingBody object at 0x10f29e1c0>}
Versioning_Test/file1.txt
來自 aws cli 的回應：
{
"ETag": "\"55f141382684970d4970ae31b3d4b310\"",
"Size": 969,
"StorageClass": "STANDARD",
"Key": "Versioning_Test/file1.txt",
"VersionId": "gHa2D2uuosJQS6GpmuySU9uNSXN84cR9",
"IsLatest": true,
"LastModified": "2022-02-17T17:02:54 00:00",
"Owner": {
"ID": "1e5bc34834bec07ae1bc55a5d07adab10d7d58da04ae761769339a914d1ab472"
}
},
這是我的python腳本：
bucket_name = 'bucket-name'
profile_name = 'aws-profile-name'
key = ''
session = boto3.session.Session(profile_name=profile_name)
s3 = session.resource('s3')
versions = s3.Bucket(bucket_name).object_versions.filter()
for version in versions:
print(version.object_key)
obj = version.get()
print(obj)
#print("\t" obj.get('VersionId'), obj.get('ContentLength'), obj.get('LastModified'), obj.get('IsLatest'), obj.get('StorageClass'))
我錯過了什么？
uj5u.com熱心網友回復：
list_object_versions您可以使用API從存盤桶中列出您的物件版本：
import boto3
bucket_name = 'bucket-name'
profile_name = 'aws-profile-name'
if __name__ == "__main__":
session = boto3.Session(profile_name=profile_name)
client = session.client('s3')
response = client.list_object_versions(Bucket=bucket_name)
for version in response['Versions']:
print(f'Key: {version["Key"]}, Size: {version["Size"]} bytes, Latest: {version["IsLatest"]}'
f' LastModified: {version["IsLatest"]}, StorageClass: {version["StorageClass"]}')
您會注意到來自 AWS 的回應也包含一個IsLatest屬性。
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