How to use store with hydra compose API?

[brijow]

Hi, I am working through the tutorials to get a better feel for hydra-zen, but I confused about how to use it with hydra compose instead of hydra.main.

For example the code below is a trimmed down version of the tutorial Provide Swappable Configuration Groups with my attempts to get it working without success:

from hydra_zen import store, make_custom_builds_fn, zen
from game_library import inventory, Character

builds = make_custom_builds_fn(populate_full_signature=True)

# Create inventory configs
InventoryConf = builds(inventory)
starter_gear = InventoryConf(gold=10, weapon="stick", costume="tunic")
advanced_gear = InventoryConf(gold=500, weapon="wand", costume="magic robe")

# Register inventory configs under group: player/inventory
inv_store = store(group="player/inventory")
inv_store(starter_gear, name="starter")
inv_store(advanced_gear, name="advanced")

# Create player-profile configs
CharConf = builds(Character, inventory=starter_gear)
brinda_conf = CharConf(name="brinda", level=47, inventory=InventoryConf(costume="cape", weapon="flute", gold=52))

# Register player-profile configs under group: player
player_store = store(group="player")
player_store(CharConf, name="base")
player_store(brinda_conf, name="brinda")

# We need to add the configs from our local store to Hydra's global config store
store.add_to_hydra_store()

# FIXME: following code not working... 
from hydra import initialize, compose

with initialize(config_path=None):
    cfg = compose(config_name="zen_store")  # using store.name here, (guessing as unsuccessful)

In the final few lines of the code following the FIXME comment, I have tried quite several things but am stuck.

[rsokl]

I think you need to specify a name that you gave a specific config when putting it in the config store. Specifying "zen_store" doesn't make sense here, as that doesn't reference any particular config.

[brijow]

I did try using one of the names of the configd added to the config store , eg “base”, also does not work?

The reason I tried to use “zen_store” is that was the name I see in store.name , and I would like to essentially compose a master config based on what has been registered in the store. Does that sound sensible or am I perhaps misunderstanding ? Thanks for the help!

[jgbos]

There is no config zen_store. You need to create a config:

# ... same code above this line

store(
    make_config(
        hydra_defaults=[
            "_self_",
            {"player": "base"},
        ],
        player=None,
    ),
    name="config"
)

# We need to add the configs from our local store to Hydra's global config store
store.add_to_hydra_store()


from hydra import initialize, compose

with initialize(config_path=None, version_base="1.3"):
    cfg = compose(config_name="config", overrides=["player=brinda"])
    print(cfg)

[brijow]

Ah I see, thanks.