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filer: auto clean empty implicit s3 folders (#8051)

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* filer: auto clean empty s3 implicit folders

Explicitly tag implicitly created S3 folders (parent directories from object uploads) with 'Seaweed-X-Amz-Implicit-Dir'.

Update EmptyFolderCleaner to check for this attribute and cache the result efficiently.

* filer: correctly handle nil attributes in empty folder cleaner cache

* filer: refine implicit tagging logic

Prevent tagging buckets as implicit directories. Reduce code duplication.

* filer: safeguard GetEntryAttributes against nil entry and not found error

* filer: move ErrNotFound handling to EmptyFolderCleaner

* filer: add comment to explain level > 3 check for implicit directories
This commit is contained in:
Chris Lu
2026-01-17 22:10:15 -08:00
committed by GitHub
parent 1dedc8daf9
commit 8880f9932f
3 changed files with 66 additions and 2 deletions
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1
weed/s3api/s3_constants/extend_key.go
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@@ -11,6 +11,7 @@ const (
ExtETagKey = "Seaweed-X-Amz-ETag"
ExtLatestVersionIdKey = "Seaweed-X-Amz-Latest-Version-Id"
ExtLatestVersionFileNameKey = "Seaweed-X-Amz-Latest-Version-File-Name"
ExtS3ImplicitDir = "Seaweed-X-Amz-Implicit-Dir"
// Cached list metadata in .versions directory for single-scan efficiency
ExtLatestVersionSizeKey = "Seaweed-X-Amz-Latest-Version-Size"
ExtLatestVersionETagKey = "Seaweed-X-Amz-Latest-Version-ETag"