Struct lunatic_log::subscriber::fmt::FmtSubscriber

pub struct FmtSubscriber { /* private fields */ }

A subscriber printing to stdout/stderr.

Basic example

lunatic_log::init(FmtSubscriber::new(LevelFilter::Info));

Pretty example

lunatic_log::init(FmtSubscriber::new(LevelFilter::Info).pretty());

Implementations

impl FmtSubscriber

pub fn new(level_filter: LevelFilter) -> Self

Creates an instance of FmtSubscriber.

Examples found in repository

examples/info.rs (line 5)

fn main() {
    // Initialize subscriber
    lunatic_log::init(FmtSubscriber::new(LevelFilter::Info));

    // Log message
    info!("Hello, {}", "World");

    // Wait for events to propagate
    lunatic::sleep(std::time::Duration::from_millis(50));
}

examples/pretty.rs (line 5)

fn main() {
    // Initialize subscriber
    lunatic_log::init(FmtSubscriber::new(LevelFilter::Trace).pretty());

    // Log message
    error!("Error");
    warn!("Warn");
    info!("Info");
    debug!("Debug");
    trace!("Trace");

    // Wait for events to propagate
    lunatic::sleep(std::time::Duration::from_millis(50));
}

examples/multiple.rs (line 10)

fn main() {
    // Setup multiple subscribers
    let subscriber = MultipleSubscribers::new()
        .add_subscriber(FmtSubscriber::new(LevelFilter::Info))
        .add_subscriber(FmtSubscriber::new(LevelFilter::Info));

    // Initialize multiple subscribers
    lunatic_log::init(subscriber);

    // Log message
    info!("Hello, {}", "World");

    // Wait for events to propagate
    lunatic::sleep(std::time::Duration::from_millis(50));
}

pub fn pretty(self) -> Self

Configures logging to be pretty with colors, filenames, and more.

Examples found in repository

examples/pretty.rs (line 5)

fn main() {
    // Initialize subscriber
    lunatic_log::init(FmtSubscriber::new(LevelFilter::Trace).pretty());

    // Log message
    error!("Error");
    warn!("Warn");
    info!("Info");
    debug!("Debug");
    trace!("Trace");

    // Wait for events to propagate
    lunatic::sleep(std::time::Duration::from_millis(50));
}

pub fn with_color(self, color: bool) -> Self

Enables printing color.

pub fn with_file(self, file: bool) -> Self

Print filename where log originated.

pub fn with_level(self, level: bool) -> Self

Print the log level.

pub fn with_line_number(self, line_number: bool) -> Self

Print the line number where log originated.

pub fn with_target(self, target: bool) -> Self

Print the target of the log.

pub fn with_time(self, time: bool) -> Self

Print the time with the log.

pub fn with_time_format(self, time_format: impl Into<String>) -> Self

Customize the time format.

This must be in the strftime format supported by chrono.

Trait Implementations

impl Default for FmtSubscriber

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for FmtSubscriber

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for FmtSubscriber

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Subscriber for FmtSubscriber

fn enabled(&self, metadata: &Metadata) -> bool

Indicate whether subscriber is enabled given some Metadata.

fn event(&self, event: &Event)

Handle a log Event.