Using ephemerals to select variants

[Anti-Distinctlyminty]

I'm attempting to setup a package for ACES configurations and have run into a issue where ephemerals in variants do not act like I expected.

See the following packages.py

name = "aces"

description = "OCIO ACES configuration"

version = "1.3.0"

build_command = False

requires = ["ocio_configs-2+"]

variants = [
    [".colorpaces-1.0.0", ".ocio-2.1"],
    [".colorspaces-2.1.0", ".ocio-2.3"],
]

def commands():
    import os
    
    env.OCIO = os.path.normpath(
        "{ocio_configs_root}/OpenColorIO-{ocio_configs_version}/src/OpenColorIO/builtinconfigs/configs/cg-config-v{colorpsaces_version}_aces-v{aces_major_minor}_ocio-v{ocio_major_minor}.ocio".format(
            ocio_configs_root=resolve.ocio_configs.root,
            ocio_configs_version=resolve.ocio_configs.version,
            colorpsaces_version=ephemerals.get_range("colorspaces"),   
            aces_major_minor=f"{this.version[0]}.{this.version[1]}",
            ocio_major_minor=ephemerals.get_range("ocio"),
        )
    )

    if not os.path.exists(str(env.OCIO)):
        stop(f"Specified .ocio does not exist: {env.OCIO}")

The ocio_configs package are the configs avialable from the OCIO Github
My intent was to use ephemerals and variants as a kind of switch to allow the correct .ocio file to be set.
e.g. if the user requests rez-env aces rez-env aces-1.3 .colorspaces-1, then I thought it would automatically pick up the variant involving .colorspaces-1.0.0, resulting in choosing the
ocio_configs\2.1.0\OpenColorIO-2.1.0\src\OpenColorIO\builtinconfigs\configs\cg-config-v1.0.0_aces-v1.3_ocio-v2.1.ocio file. However, this is not the case as the ephemeral is just passed as is and has no effect on the variant chosen. So the .ocio file is actually
ocio_configs\2.1.0\OpenColorIO-2.1.0\src\OpenColorIO\builtinconfigs\configs\cg-config-v1_aces-v1.3_ocio-v2.1.ocio

So I'm guessing that the ephemerals in combination with variants do not act this way? If not, is there another way I can achieve the same thing?

[JeanChristopheMorinPerso]

Interesting, my intuition tells me that what you expect is what I would expect too. But I've never used ephemerals before so maybe I'm missing something.

[Anti-Distinctlyminty]

We were indeed correct. There was a typo in the variants which I somehow missed colorpaces. It now works as expected.