Struct RichLogFormatter 

pub struct RichLogFormatter { /* private fields */ }

Formats tracing events into rich, styled output.

The formatter is aware of the display context and will produce plain text output when running in agent mode (machine parsing) vs rich styled output when running in human mode (interactive terminal).

Implementations

impl RichLogFormatter

pub fn new(theme: &'static FastMcpTheme, context: DisplayContext) -> Self

Create a new formatter with the given theme and context.

pub fn detect() -> Self

Create a formatter that auto-detects the context.

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

Set whether to show the target/module path.

pub fn with_timestamp(self, show: bool) -> Self

Set whether to show timestamps.

pub fn with_file_line(self, show: bool) -> Self

Set whether to show file:line information.

pub fn with_max_width(self, width: Option<usize>) -> Self

Set maximum width for message/target truncation.

pub fn should_use_rich(&self) -> bool

Check if rich output should be used.

pub fn style_for_level(&self, level: LogLevel) -> &Style

Get the style for a given log level.

pub fn format_level_badge(&self, level: LogLevel) -> String

Format a level badge (e.g., [ERROR], [INFO ]).

pub fn format_timestamp(&self, timestamp: &str) -> Option<String>

Format a timestamp.

pub fn format_target(&self, target: &str) -> Option<String>

Format a target/module path.

pub fn format_fields(&self, fields: &[(String, String)]) -> String

Format structured fields (key=value pairs).

pub fn format_event(&self, event: &LogEvent) -> FormattedLog

Format a complete log event.

pub fn format_line(&self, event: &LogEvent) -> String

Format a log event to a single line string.

Trait Implementations

impl Debug for RichLogFormatter

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for RichLogFormatter

fn default() -> Self

Returns the “default value” for a type.