Struct OsConfigSource 

pub struct OsConfigSource;

Config files from the real filesystem, with the user directory resolved by platform convention.

Trait Implementations

impl ConfigSource for OsConfigSource

fn user_config_dir(&self) -> Option<PathBuf>

The user config directory. None when no home directory can be determined — then the user file simply does not exist.

fn read(&self, path: &Path) -> Result<Option<String>, EngineError>

Contents, or None when the file does not exist. Any other failure (permissions, non-UTF-8) is an error.

fn read_required(&self, path: &Path) -> Result<String, EngineError>

Contents of a file the caller named explicitly, where absence is a hard error rather than a default.