pub fn get_effective(cwd: &Path, key: &str) -> Result<Option<String>, Error>Expand description
Look up key across .lfsconfig (committed; lowest priority) and
the standard git config scopes (local → global → system). Returns the
first match.
Mirrors upstream’s effective config: settings written to .lfsconfig
at the repo root are visible without overriding anything explicitly
set in the user’s git config. .lfsconfig reads are filtered through
a safe-key allowlist — settings that aren’t URL/access related are
ignored, with a one-shot warning to stderr.