Struct Logger 

pub struct Logger { /* private fields */ }

Application logger.

When debug_assertions are enabled tracing output is written to stdout and to disc; for release builds tracing is just written to disc.

Implementations

impl Logger

pub fn new(name: Option<String>) -> Self

Create a new logger using default paths.

Panics

If the default data directory could not be determined.

pub fn new_paths(paths: Arc<Paths>, name: Option<String>) -> Self

Create a new logger with the given paths.

pub fn new_dir(logs_dir: PathBuf, name: String) -> Self

Create a new logger with the given directory and file name.

pub fn init_subscriber( &self, default_log_level: Option<String>, ) -> Result<(), Error>

Available on debug-assertions enabled only.

Initialize the tracing subscriber.

pub fn init_file_subscriber( &self, default_log_level: Option<String>, ) -> Result<(), Error>

Initialize a subscriber that writes to a file.

pub fn status(&self) -> Result<LogFileStatus, Error>

Log file status.

pub fn tail(&self, num_lines: Option<usize>) -> Result<Vec<String>, Error>

Load the tail of log records for the current file.

pub fn tail_file( &self, num_lines: Option<usize>, path: impl AsRef<Path>, ) -> Result<Vec<String>, Error>

Load the tail of log records for a file.

pub fn delete_logs(&self) -> Result<(), Error>

Delete all log files except the current log file.

Trait Implementations

impl Default for Logger

fn default() -> Self

Returns the “default value” for a type.