Struct spirit_log::Extras

pub struct Extras<O, C> { /* private fields */ }

Description of extra configuration for logging.

This allows customizing the logging as managed by this crate, mostly by pairing it with command line options (see Opts) and adding arbitrary additional loggers.

The default does nothing (eg. no command line options and no extra loggers).

Implementations

impl<O, C> Extras<O, C>

pub fn with_opts<F: Fn(&O) -> Opts + Send + Sync + 'static>(
    extractor: F
) -> Self

Constructs the Extras structure with an extractor for options.

The passed closure should take the applications global options structure and return the Opts by which the logging from command line can be tweaked.

pub fn extra_loggers<F>(self, extra: F) -> Selfwhere
    F: Fn(&O, &C) -> Result<(LevelFilter, Vec<Box<dyn Log>>), Error> + Send + Sync + 'static,

Modifies the Extras to contain another source of additional loggers.

Each such closure is run every time logging is being configured. It can return either bunch of loggers (with the needed log level), or an error. If an error is returned, the loading of new configuration is aborted.

Trait Implementations

impl<O, C> CfgHelper<O, C, Extras<O, C>> for Cfgwhere
    C: DeserializeOwned + Send + Sync + 'static,
    O: Debug + StructOpt + Sync + Send + 'static,

fn apply<Extractor, Name>(
    extractor: Extractor,
    extras: Extras<O, C>,
    name: Name,
    builder: Builder<O, C>
) -> Builder<O, C>where
    Extractor: FnMut(&C) -> Self + Send + 'static,
    Name: Clone + Display + Send + Sync + 'static,

Perform the creation and application of the helper.

impl<O, C> Default for Extras<O, C>

fn default() -> Self

Returns the “default value” for a type.