Same observed metadata outside programs#

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

Files that match in name, size, last change and kind are grouped as probably copied from one another, except inside an installed program; whether they hold the same bytes is a separate question.

same_observed_metadata_outside_programs version 2

  • 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 observed_metadata

  • Reasoning: abductive. A conclusion is the best explanation of what was seen, and another explanation could replace 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What this rule concludes about something is withdrawn when any of these rules concludes about the same thing:

  • installed_software_in_folder: A folder is recognized as an installed program, such as a copy of Fiji or a Python environment, from the parts it holds, a name ending .app, its program-style subfolders or a majority of program files; its files are still indexed and read, and rules about experiments leave them alone.

Parameters#

Parameter

Shipped value

May be

What it does

compared_facts

["name", "size_bytes", "modified_ns", "entry_type"]

list of text

The filesystem facts that must agree. Birth time is left out: it is the fact a copy does not preserve, so requiring it found same-instant siblings inside installed software and missed copies a person made.