logly (Python extension)
├── core          Central dispatch engine
├── levels        Level definitions & registry
├── record        Immutable log record carrier
├── filter        Record filtering & level gates
├── format        Template & JSON formatters
├── sink          Console, file, callback sinks
├── source        Source location & editor links
├── color         ANSI rendering & markup parsing
├── config        Configuration types & policies
├── compress      Gzip, Zip, Bz2, Xz, Zstd codecs
├── concurrency   Worker pool & backpressure
├── rotate        Size, time, clock, weekday rotation
├── network       HTTP, TCP, UDP, Syslog sinks
└── error         Unified error types

Crates

Crate	Description
core	Central logger engine — owns the sink registry, dispatches log records, manages enable/disable state.
levels	Built-in level definitions (TRACE through FATAL) with a thread-safe global registry for custom levels.
record	Immutable `LogRecord` carrier passed from engine to sinks, with builder pattern and structured extra fields.
filter	`Filter` trait with built-in level, prefix, and extra filters. Composable AND/OR chains for complex filtering.
format	Template-based formatter with `{token}` placeholders, structured JSON output, and custom closure-based formatting.
sink	Core `Sink` trait and built-in implementations — Console, File, Enqueue (async worker), and Callback sinks.
source	Source location capture, clickable editor links (VS Code, JetBrains, Vim, Emacs, Sublime), and surrounding context reading.
color	ANSI color rendering — maps levels to styles, parses angle-bracket and Rich-style markup, supports themes.
config	Serialization-friendly configuration types for sinks, rotation, retention, compression, and enqueue modes.
compress	Compression codecs (Gzip, Zip, Bz2, Xz, Zstd) for rotated log files with retention-based cleanup.
concurrency	Background worker thread pool with channel-based dispatch and configurable backpressure.
rotate	File rotation policies — size, interval, clock, and weekday triggers with non-destructive file renaming.
network	Network sinks — HTTP/JSON (with batching), TCP, UDP, and Syslog transports for remote log forwarding.
error	Canonical `LoglyError` enum and `LoglyResult<T>` type alias shared across all crates.

Dependency Graph

error
levels ← record ← core ← sink ← format
                  ↑       ↑       ↑
                filter  source  color
                        ↑
                      config
                                ↑

Development

Each crate can be tested independently:

cargo test -p color
cargo test -p format
cargo test --workspace   # all crates

Lint across all crates:

cargo clippy --workspace --all-targets -- -D warnings
cargo fmt --all -- --check