Copies by sampled digest

This page is generated from the code and must not be edited by hand.

Files whose contents give the same fingerprint from a quick sample are grouped as holding the same bytes, as far as a sample can tell, unless a file’s contents could not be read.

copies_by_sampled_digest version 1

• Kind of rule: Which files go together (groups). Says which things count as the same in some respect, and so forms groups.

• What it concludes: equivalent, in respect of sampled_content

• Reasoning: defeasible. A conclusion is usually right, and is retracted when a rule it names concludes against it.

• What it reads: files, which it sorts into groups

Is it available in this version?

Yes. The engine runs it.

What would defeat it

What this rule concludes about something is withdrawn when any of these rules concludes about the same thing:

• content_unreadable: A file whose contents cannot be read is flagged, saying why: it holds nothing beside siblings that hold something (an empty output), it is empty, it is empty and untouched since before a set date, it is a link the archive left in place of the file, it is a link to somewhere outside the data or to something gone, or it is not an ordinary file; inside an installed program, where empty files are ordinary, it is only marked.

Parameters

Parameter	Shipped value	May be	What it does
digest_algorithm	"blake3_quick"	text	The identity method whose digest settles it. The sampled one: its scope travels in the key, so a sampled digest never groups with a whole one.