Merge pull request #46 from didip/master

SyslogHook
This commit is contained in:
Simon Eskildsen 2014-07-30 19:35:33 -04:00
commit d1c2d610bd
4 changed files with 111 additions and 0 deletions

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@ -205,10 +205,12 @@ Logrus comes with built-in hooks. Add those, or your custom hook, in `init`:
import (
log "github.com/Sirupsen/logrus"
"github.com/Sirupsen/logrus/hooks/airbrake"
"github.com/Sirupsen/logrus/hooks/syslog"
)
func init() {
log.AddHook(new(logrus_airbrake.AirbrakeHook))
log.AddHook(logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, ""))
}
```
@ -216,6 +218,10 @@ func init() {
Send errors to an exception tracking service compatible with the Airbrake API.
Uses [`airbrake-go`](https://github.com/tobi/airbrake-go) behind the scenes.
* [`github.com/Sirupsen/logrus/hooks/syslog`](https://github.com/Sirupsen/logrus/blob/master/hooks/syslog/syslog.go).
Send errors to remote syslog server.
Uses standard library `log/syslog` behind the scenes.
#### Level logging
Logrus has six logging levels: Debug, Info, Warning, Error, Fatal and Panic.

20
hooks/syslog/README.md Normal file
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@ -0,0 +1,20 @@
# Syslog Hooks for Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>
## Usage
```go
import (
"log/syslog"
"github.com/Sirupsen/logrus"
"github.com/Sirupsen/logrus/hooks/syslog"
)
func main() {
log := logrus.New()
hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
if err == nil {
log.Hooks.Add(hook)
}
}
```

59
hooks/syslog/syslog.go Normal file
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@ -0,0 +1,59 @@
package logrus_syslog
import (
"fmt"
"github.com/Sirupsen/logrus"
"log/syslog"
"os"
)
// SyslogHook to send logs via syslog.
type SyslogHook struct {
Writer *syslog.Writer
SyslogNetwork string
SyslogRaddr string
}
// Creates a hook to be added to an instance of logger. This is called with
// `hook, err := NewSyslogHook("udp", "localhost:514", syslog.LOG_DEBUG, "")`
// `if err == nil { log.Hooks.Add(hook) }`
func NewSyslogHook(network, raddr string, priority syslog.Priority, tag string) (*SyslogHook, error) {
w, err := syslog.Dial(network, raddr, priority, tag)
return &SyslogHook{w, network, raddr}, err
}
func (hook *SyslogHook) Fire(entry *logrus.Entry) error {
line, err := entry.String()
if err != nil {
fmt.Fprintf(os.Stderr, "Unable to read entry, %v", err)
return err
}
switch entry.Data["level"] {
case "panic":
return hook.Writer.Crit(line)
case "fatal":
return hook.Writer.Crit(line)
case "error":
return hook.Writer.Err(line)
case "warn":
return hook.Writer.Warning(line)
case "info":
return hook.Writer.Info(line)
case "debug":
return hook.Writer.Debug(line)
default:
return nil
}
}
func (hook *SyslogHook) Levels() []logrus.Level {
return []logrus.Level{
logrus.PanicLevel,
logrus.FatalLevel,
logrus.ErrorLevel,
logrus.WarnLevel,
logrus.InfoLevel,
logrus.DebugLevel,
}
}

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@ -0,0 +1,26 @@
package logrus_syslog
import (
"github.com/Sirupsen/logrus"
"log/syslog"
"testing"
)
func TestLocalhostAddAndPrint(t *testing.T) {
log := logrus.New()
hook, err := NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
if err != nil {
t.Errorf("Unable to connect to local syslog.")
}
log.Hooks.Add(hook)
for _, level := range hook.Levels() {
if len(log.Hooks[level]) != 1 {
t.Errorf("SyslogHook was not added. The length of log.Hooks[%v]: %v", level, len(log.Hooks[level]))
}
}
log.Info("Congratulations!")
}