How to search for first named config in parent directory?

[jasha-hrp]

Suppose I'd like to load the first file named my-app-config.toml found in a parent directory.
For example,:

• load ./my-app-config.toml if it exists,
• else, load ../my-app-config.toml if it exists,
• else, load ../../my-app-config.toml if it exists,
• ...

Is this something achievable using this crate? Or should I use some other tool to walk the filesystem and find the target file, then use this crate only after the target file has been found?

[epage]

Currently, enumerating of directories is left to the caller.

There are multiple policies that could be used

• Stop at first vs Merge all
• Always walk up, only for "safe directories" (based on owners), user-configured stop, etc