[OpenIndiana-discuss] Auto remove of unneeded packages?

[Andy Fiddaman]

On Thu, 25 Feb 2021, cretin1997 via openindiana-discuss wrote:

; On Debian, after I uninstalled a package, there will be it dependencies that no longer needed still left. This simple command will remove all of them:
;
; apt autoremove
;
; What is the equivalent command for pkg?

As others have said, there is not an equivalent yet. However, OmniOS just
gained support for `pkg list -r` which lists packages that have no dependencies
and could be removed.

https://github.com/omniosorg/pkg5/commit/afdd749e3246ed92d2e574c

It should be relatively straightforward to port to OpenIndiana's `pkg` too.

Adding `pkg autoremove` would be possible but would require more state to
be kept on whether packages were installed manually. That metadata is just
not there at present.

Andy