Felipe Martin 7e7a1b582f

fix: only match root-level JSONL files when importing a zip (#35481) ...

* fix: only match root-level JSONL files when importing a zip

When importing a Mattermost export zip, the code iterated over all files
to find the first .jsonl by extension. Exported attachments under data/
could themselves be .jsonl files, causing the import to pick an
attachment as the manifest instead of the actual root-level JSONL file.

Extract an IsRootJsonlFile helper in the imports package and use it in
the import process worker, mmctl validator, and bulk import test to
restrict the search to files with no directory component.

* test: add integration test for import with nested JSONL decoy file

Verify that BulkImportWithPath correctly picks the root-level JSONL
manifest and ignores a decoy .jsonl inside a subdirectory, covering
the fix from ad7f230f06.

2026-03-05 15:20:17 +01:00

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