Function run_context 

pub fn run_context(
    db_dir: &Path,
    target: &str,
    full: bool,
) -> Result<String, CliError>

Body of mushroomdb context <db-dir> <target> [--full].

With full the source is quoted from the repository the GitSync marker names, which is the checkout the store was built from. Without it the answer points at those lines rather than printing them.