localised, localised --transient

[mottosso]

Goal

Dynamically localise packages as you resolve a request.

Motivation

Sometimes, you're aware of what packages run slow and can explicitly localise the ones that interest you. Other times you rely on #6 (Automatic Localisation) to localise for you.

But other times you want to resolve a request for the first time and just want everything running locally.

Implementation

$ rez env localz -- localised maya-2018 core_pipeline-1.2 alita-1
# localising..
> $

This command wraps rez env with a prior call to localise, to first localise the request prior to entering the context.

$ rez env localz -- localised python-3 core_pipeline-3 --transient
$ > exit
# cleaning up..
$

The --transient flag removes localised packages once you exit the context, for those quick-and-dirty sessions where you've got some requirements and a task at hand, but it's a one-off and you don't expect to return.

If packages are already local at the time of the request, nothing is localised and it's practically a no-op, that guarantees everything is local every time you run it, and takes the appropriate measures if it isn't already.