Return delete markers in mc find

[allanrogerr]

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under the terms of the Apache 2 license.
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contributions to the project maintainers under the Apache 2 license.

Description

Default to list delete flags if they are part of the result set, so that they are not hidden from the find function

Motivation and Context

The default behaviour of mc find is to not return delete flags. However, for example in the case of ILM, this makes it difficult to detect if there are delete marker candidates for processing, even when the versions flag is specified.

How to test this PR?

Run mc find --versions on a specific bucket where delete markers are known to be present. These delete markers should be part of the result set.
e.g.

➜  mc git:(find-versions) ./mc find --smaller 1B local/find --json --versions                     
{
 "status": "success",
 "type": "",
 "lastModified": "2024-11-19T06:35:14.294-04:00",
 "size": 0,
 "key": "local/find/pics/47110640341_df7a79b41b_o.jpg",
 "etag": "",
 "versionId": "3ad022fa-230a-4bbd-86cf-b4dd12a3f4b0"
}
➜  mc git:(find-versions) ./mc find --smaller 1B local/find --json           
➜  mc git:(find-versions) 

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Optimization (provides speedup with no functional changes)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• Fixes a regression (If yes, please add commit-id or PR # here)
• Unit tests added/updated
• Internal documentation updated
• Create a documentation update request here

[klauspost]

Wouldn't this change existing behavior? Maybe do a --with-dm flag?

[allanrogerr]

Wouldn't this change existing behavior? Maybe do a --with-dm flag?

It would however @vadmeste opinion was that although it may break in some rare corner cases in the community, it is better than adding a new flag. Your thoughts @klauspost ?

[klauspost]

I see potential scripts breaking... And weird stuff people use it for breaking in strange ways... So personally uncomfortable changing it.

[allanrogerr]

I see potential scripts breaking... And weird stuff people use it for breaking in strange ways... So personally uncomfortable changing it.

Let me take a closer look.

[allanrogerr]

Simplified the implementation by enabling delete marker listing when using --versions

[klauspost]

Let's hope nobody loses data, then.