Scanner support for zip archives containing multiple files
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Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 30/100
Research direction
No files, tests, or entry points are named. Start by locating the existing scanners and the unarchive processor, then review how scanner outputs represent archive contents and whether multi-file input is supported. Done should mean zip archives with multiple CSV files can be scanned without loading the full archive into memory and their source files remain distinguishable.
Written by the indexing model from the issue text.
Description
Had the following exchange in the Redpanda Community Slack, where we (@mihaitodor, realistically) realized that the existing scanners don't support zip archives containing multiple files.
In case it helps, just to break down a use case: I'm grabbing a data dump a few times per day via SFTP that has a bunch of CSV files. It's pretty sizeable, so opening everything in memory (as @mihaitodor pointed out I can already do with the unarchive processor) is pretty expensive (memory-wise, I mean).
This is my first time using benthos/redpanda connect, but I'm assuming that this hypothetical scanner will need to either add some metadata to each line/message to indicate which file it's coming from or otherwise allow me to batch them in a way that I can tell which is which for subsequent processing.
If there's any way I can be of assistance, please let me know.
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