Access "creation" date of datasets/snapshots

[markusressel]

Hey, great lib 👍

Is it possible to access the "creation date"?
Its possible to list this information using:

zfs list -o name,creation -S creation

The last part (-S creation) is not necessary, its just sorting the output already.

If its not yet possible, how could we add this?
Thx!

[Myzel394]

Did you ever find a solution for this? As far as I understand you should be able to access it using:

creation, err := dataset.GetProperty("compression")
print(creation)

[markusressel]

No, sadly it doesn't work that way.

rawGozfsData, err := gozfs.Snapshots(fullName)
propValue, err := rawGozfsData.GetProperty("creation")

returns:

[markusressel]

I realize I have still been using v2.1.1, retesting the same with v3.0.1 yields this:

So it does work, although the format is a bit cumbersome if you want to work with this as a time instance.

[markusressel]

This is probably caused by always including the -H flag here:

[markusressel]

According to this:
https://stackoverflow.com/a/78762852/1941623

it would probably be better to use the -p flag to always get "parsable" values, which in this case would be a unix timestamp.

EDIT: ok both -H and -p are a good idea:

-H         Display output in a form more easily parsed by scripts.  Any headers are omitted, and fields are explicitly separated by a single tab instead of an arbitrary amount of space.

...

 -p         Display numbers in parsable (exact) values.

[markusressel]

Looks like there is already a PR to fix this, which is waiting for a v4 release:
#85