sherifkk opened a new pull request #5018: [AIRFLOW-4158] Prefix and delimiter support for S3CopyObjectOperator & S3DeleteObjectsOperator URL: https://github.com/apache/airflow/pull/5018 ### Jira - [x] My PR addresses the following [Airflow Jira](https://issues.apache.org/jira/browse/AIRFLOW/) issues and references them in the PR title. For example, "\[AIRFLOW-XXX\] My Airflow PR" - https://issues.apache.org/jira/browse/AIRFLOW-4158 ### Description - [x] Here are some details about my PR, including screenshots of any UI changes: In S3DeleteObjectsOperator and S3CopyObjectOperator, it only supports the exact key of the file, there is no feature to copy or delete using prefix and delimiter. By this change, we can either use key or prefix and/or delimiter with S3DeleteObjectsOperator and S3CopyObjectOperator, if we use prefix and/or delimiter we can delete/copy all files with the same prefix. It is equivalent to --recursive option of aws command. ### Tests - [x] My PR adds the following unit tests __OR__ does not need testing for this extremely good reason: ### Commits - [x] My commits all reference Jira issues in their subject lines, and I have squashed multiple commits if they address the same issue. In addition, my commits follow the guidelines from "[How to write a good git commit message](http://chris.beams.io/posts/git-commit/)": 1. Subject is separated from body by a blank line 1. Subject is limited to 50 characters (not including Jira issue reference) 1. Subject does not end with a period 1. Subject uses the imperative mood ("add", not "adding") 1. Body wraps at 72 characters 1. Body explains "what" and "why", not "how" ### Documentation - [x] In case of new functionality, my PR adds documentation that describes how to use it. - All the public functions and the classes in the PR contain docstrings that explain what it does ### Code Quality - [x] Passes `flake8`
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