fix: guard against accidental deletes with ndjson output format #281
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The ndjson output formatter deletes all existing content in its target directory, because it is not an incremental formatter. But this introduces the possibility of accidentally using the ndjson output format on a delta lake folder or some other important folder. So this commit checks the contents of the target output dir and errors out if there are odd looking files in there.
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dogversioning
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Oct 10, 2023
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The ndjson output formatter deletes all existing content in its target directory, because it is not an incremental formatter.
But this introduces the possibility of accidentally using the ndjson output format on a delta lake folder or some other important folder.
So this commit checks the contents of the target output dir and errors out if there are odd looking files in there.
This fixes #280
Checklist
docs/) needs to be updated