pub type GitBranchReadSchemaFileFn = fn(gitdir: &Path, name: &str, version: &str, rel: &str) -> Result<Option<Vec<u8>>, BackendError>;Expand description
Read one file from a sealed schema package on the workspace’s
__MEMSTEAD:schemas/<name>@<version>/ ref. Ok(None) when the
ref, package, or file is absent — absence is a normal state (the
install-provenance stamp only exists for path-sourced installs).
Read-only; the authoring-drift health axis is the consumer.