what's the best way of having a variable that contains the absolute path of the project root? something like

dataset:
  filepath: ${custom_kedro_resolver_magic:project_root}/data/01_raw/iris.csv

? has anybody come up with a custom resolver that can do this dynamically, rather than having to, say, hardcode it in

globals.yml

?

We can register a custom resolver that dynamiclly resolve

package_path

settings.py

from kedro.config import OmegaConfigLoader

CONFIG_LOADER_CLASS = OmegaConfigLoader

CONFIG_LOADER_ARGS = {
    "custom_resolvers": {
        "package_path": lambda: os.path.basename(__file__),
    }
}

catalog.yml

dataset:
  filepath: ${package_path:}

We used to resolve

package_path

inside a CustomConfigLoader (before custom resolver was a thing) this let us have a sort of application conf, where we bundle some artifact alongside the src code (stopwords, referentials, …) and having them versioned and released with the python package. A dataset would point to them relative to

package_path

. Maybe this is outside of the scope of the question, since it’s about projet_root. I don’t know how to do that for project root

oh that's where I got stuck too. the

settings.py

, the place where this resolver would go, doesn't have enough info to know where

project_root

is. one could hack something around but it would be brittle I guess.