Module logging 

Structured logging initialization and configuration.

This module provides centralized logging setup using the tracing ecosystem. It supports both human-readable and JSON output formats, configurable via environment variables.

Configuration

Logging is controlled via the RUST_LOG environment variable:

# Default logging (info level)
RUST_LOG=info

# Debug level for heddle only
RUST_LOG=heddle=debug

# Trace everything
RUST_LOG=trace

# JSON output for machine parsing
RUST_LOG=info HEDDLE_LOG_FORMAT=json

Structs

CommandTrace

One root span for a foreground CLI command.

LoggingConfig

LoggingGuard

Enums

LogFormat

Functions

init_logging

Initialize the global tracing subscriber.

init_logging_default

is_enabled

record_phase_span

Record an already-measured profile phase as a child of the command span.

trace_export_enabled

Whether this process has an endpoint-backed trace provider.