go get github.com/chapsuk/golog
package main
import (
"github.com/chapsuk/golog"
)
func main() {
// golog.SetFormatter(&golog.JSONFormatter)
// golog.SetFormatter(&golog.LogstashFormatter{})
golog.SetFormatter(&golog.TextFormatter{}) // not needed, TextFormatter by default
golog.Info("Hallo")
logger := golog.WithContext(golog.Context{
"host": "localhost",
"place": "example",
})
logger.Warn("why so serious?!")
logger.ErrorCtx(golog.Context{
"uid": 666,
}, "Omen detected")
logger.Fatalf("The %s!", "end")
}Output:
// JSONFormatter
{"_t":"2016-06-10T12:26:20+03:00", "_l":"INFO", "_m":"Hallo"}
{"_t":"2016-06-10T12:26:20+03:00", "_l":"WARN", "host":"localhost", "place":"example", "_m":"why so serious?!"}
{"_t":"2016-06-10T12:26:20+03:00", "_l":"ERROR", "host":"localhost", "place":"example", "uid":666, "_m":"Omen detected"}
{"_t":"2016-06-10T12:26:20+03:00", "_l":"FATAL", "host":"localhost", "place":"example", "uid":666, "_m":"The end!"}
// LogstashFormatter
{"@timestamp":"2016-06-10T12:26:35+03:00","@version":1,"level":"INFO","message":"Hallo"}
{"@timestamp":"2016-06-10T12:26:35+03:00","@version":1,"level":"WARN","host":"localhost","place":"example","message":"why so serious?!"}
{"@timestamp":"2016-06-10T12:26:35+03:00","@version":1,"level":"ERROR","host":"localhost","place":"example","uid":666,"message":"Omen detected"}
{"@timestamp":"2016-06-10T12:26:35+03:00","@version":1,"level":"FATAL","host":"localhost","place":"example","uid":666,"message":"The end!"}
// TextFormatter
2016-06-10T12:22:01+03:00 INFO [] Hallo
2016-06-10T12:22:01+03:00 WARN [place: example, host: localhost] why so serious?!
2016-06-10T12:22:01+03:00 ERROR [uid: 666, place: example, host: localhost] Omen detected
2016-06-10T12:22:01+03:00 FATAL [place: example, host: localhost, uid: 666] The end!
exit status 1- Install goconvey
- Run
$GOPATH/bin/goconveyfor watch test result in browser, orgo test -v ./....
Benchmark source.
≻ go test -v -bench=. -benchmem ./bench/bench_test.go 2>/dev/null
BenchmarkLog-4 100000 31437 ns/op 5345 B/op 112 allocs/op
BenchmarkLogComplex-4 20000 50919 ns/op 10915 B/op 224 allocs/op
BenchmarkLogxi-4 100000 17629 ns/op 2321 B/op 58 allocs/op
BenchmarkLogxiComplex-4 30000 40875 ns/op 7379 B/op 178 allocs/op
BenchmarkLogrus-4 30000 49576 ns/op 8253 B/op 139 allocs/op
BenchmarkLogrusComplex-4 20000 50315 ns/op 11544 B/op 229 allocs/op
BenchmarkLog15-4 30000 48401 ns/op 9634 B/op 204 allocs/op
BenchmarkLog15Complex-4 20000 96301 ns/op 12751 B/op 254 allocs/op
BenchmarkGolog-4 50000 22442 ns/op 3060 B/op 52 allocs/op
BenchmarkGologComplex-4 30000 39815 ns/op 8438 B/op 184 allocs/op
BenchmarkZapSugar-4 1000000 2200 ns/op 350 B/op 24 allocs/op
BenchmarkZapSugarComplex-4 100000 17372 ns/op 2386 B/op 73 allocs/op
BenchmarkZap-4 1000000 1884 ns/op 785 B/op 4 allocs/op
BenchmarkZapComplex-4 500000 2050 ns/op 576 B/op 5 allocs/op
PASS
ok command-line-arguments 28.506s