Jira (FACT-2642) custom fact containing fact.value shows value on facter 3 but not on facter 4

[Andrei Filipovici (Jira)]

Andrei Filipovici updated an issue

Facter / FACT-2642 custom fact containing fact.value shows value on facter 3 but not on facter 4 Change By: Andrei Filipovici Summary: custom fact containing fact. value for aggregates is printed twice shows value on facter 3 and once but not on facter 4 Add Comment

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[Andrei Filipovici (Jira)]

Andrei Filipovici updated an issue

Facter / FACT-2642 custom fact containing fact.value shows value on facter 3 but not on facter 4 Change By: Andrei Filipovici

When using the last example with the memory addition from here: [https://puppet.com/docs/facter/3.11/fact_overview.html#writing-facts-with-aggregate-resolutions] and print the fact without any option and with --yaml and --json the only difference between facter 3 and 4 is how float numbers are printed with the yaml option: On facter 3: fact: 1135.015625 Facter 4: fact: "1102.89" The rest is the same. Facter 2 can't even solve the fact.   When printing hash values, everything works the same and no aggregate function is used.   When printing arrays there's a spacing difference when using the --yaml option: Facter 3: fact:     - value 1     - value 2 Facter 4: fact: - value 1 - value 2   Facter 2 .5.7 and facter 4 are unable to solve aggregate custom facts, if they are written with like this : {code:java} / fact = Facter::Util::Fact.new('fact') fact.define_resolution('hgy', type: :aggregate) do   chunk(:physical_memory) do     ['value 1']   end   chunk(:virtual_memory) do     ['value 2']   end   end fact.value/ code placeholder {code} fact.value on facter 3 yields: [   "value 1",   "value 2" ] facter 4 and 2.5.7 give return nil. Also when a If fact can't be resolved and --yaml .value is used missing from the outputs are: Facter custom fact file, facter 3 and 4: won't show any result. fact: ""   Facter 2 4 returns nil even if fact . 5 value is missing . 7: --- This happens because, by using this construction, the fact : is not added to the facts collection and it can't be found. When This behaviour is not documented and the --json normal way of creating facts is used: with Facter 4 and 2 . 5 add . 7: { "fact": null } Facter 3: { "fact": "" }

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