tracing-tree

Instrument your application with tracing and get tree-structured summaries of your application activity with timing information on the console:

tracing-tree/examples/quiet.stdout

Lines 1 to 28 in 483cc0a

	1:main┐quiet::hierarchical-example version=0.1
	1:main├─┐quiet::server host="localhost", port=8080
	1:main│ ├─ Xms INFO quiet starting
	1:main│ ├─ Xms INFO quiet listening
	1:main│ ├─┐quiet::conn peer_addr="82.9.9.9", port=42381
	1:main│ │ ├─ Xms DEBUG quiet connected
	1:main│ │ ├─ Xms DEBUG quiet message received, length=2
	1:main│ ├─┘
	1:main│ ├─┐quiet::conn peer_addr="8.8.8.8", port=18230
	1:main│ │ ├─ Xms DEBUG quiet connected
	1:main│ ├─┘
	1:main│ ├─┐quiet::foomp 42 <- format string, normal_var=43
	1:main│ │ ├─ Xms ERROR quiet hello
	1:main│ ├─┘
	1:main│ ├─┐quiet::conn peer_addr="82.9.9.9", port=42381
	1:main│ │ ├─ Xms WARN quiet weak encryption requested, algo="xor"
	1:main│ │ ├─ Xms DEBUG quiet response sent, length=8
	1:main│ │ ├─ Xms DEBUG quiet disconnected
	1:main│ ├─┘
	1:main│ ├─┐quiet::conn peer_addr="8.8.8.8", port=18230
	1:main│ │ ├─ Xms DEBUG quiet message received, length=5
	1:main│ │ ├─ Xms DEBUG quiet response sent, length=8
	1:main│ │ ├─ Xms DEBUG quiet disconnected
	1:main│ ├─┘
	1:main│ ├─ Xs WARN quiet internal error
	1:main│ ├─ Xs INFO quiet exit
	1:main├─┘
	1:main┘

(Format inspired by slog-term)

Setup

After instrumenting your app with tracing, add this subscriber like this:

let subscriber = Registry::default().with(HierarchicalLayer::new(2));
tracing::subscriber::set_global_default(subscriber).unwrap();