Add early return when obj.IsLatest or obj.SuccessorModTime.IsZero()
to prevent premature expiration of versions with uninitialized
successor timestamps (zero value would compute to epoch, always expired).
- Fix version_time.go overflow: guard timestampPart > MaxInt64 before
the inversion subtraction to prevent uint64 wrap
- Make all expiry checks inclusive (!now.Before instead of now.After)
so actions trigger at the exact scheduled instant
- Add NoncurrentIndex to ObjectInfo so Evaluate() can properly handle
NewerNoncurrentVersions via ShouldExpireNoncurrentVersion()
- Add test for high-bit overflow version ID
New package weed/s3api/s3lifecycle/ provides a pure-function lifecycle
rule evaluation engine. The evaluator accepts flattened Rule structs and
ObjectInfo metadata, and returns the appropriate Action.
Components:
- evaluator.go: Evaluate() for per-object actions with S3 priority
ordering (delete marker > noncurrent version > current expiration),
ShouldExpireNoncurrentVersion() with NewerNoncurrentVersions support,
EvaluateMPUAbort() for multipart upload rules
- filter.go: prefix, tag, and size-based filter matching
- tags.go: ExtractTags() extracts S3 tags from filer Extended metadata,
HasTagRules() for scan-time optimization
- version_time.go: GetVersionTimestamp() extracts timestamps from
SeaweedFS version IDs (both old and new format)
Comprehensive test coverage: 54 tests covering all action types,
filter combinations, edge cases, and version ID formats.
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