74 lines
1.5 KiB
Go
74 lines
1.5 KiB
Go
|
package rotatelogs
|
||
|
|
|
||
|
|
import (
|
||
|
|
"os"
|
||
|
|
"sync"
|
||
|
|
"time"
|
||
|
|
|
||
|
|
strftime "github.com/lestrrat-go/strftime"
|
||
|
|
)
|
||
|
|
|
||
|
|
type Handler interface {
|
||
|
|
Handle(Event)
|
||
|
|
}
|
||
|
|
|
||
|
|
type HandlerFunc func(Event)
|
||
|
|
|
||
|
|
type Event interface {
|
||
|
|
Type() EventType
|
||
|
|
}
|
||
|
|
|
||
|
|
type EventType int
|
||
|
|
|
||
|
|
const (
|
||
|
|
InvalidEventType EventType = iota
|
||
|
|
FileRotatedEventType
|
||
|
|
)
|
||
|
|
|
||
|
|
type FileRotatedEvent struct {
|
||
|
|
prev string // previous filename
|
||
|
|
current string // current, new filename
|
||
|
|
}
|
||
|
|
|
||
|
|
// RotateLogs represents a log file that gets
|
||
|
|
// automatically rotated as you write to it.
|
||
|
|
type RotateLogs struct {
|
||
|
|
clock Clock
|
||
|
|
curFn string
|
||
|
|
curBaseFn string
|
||
|
|
globPattern string
|
||
|
|
generation int
|
||
|
|
linkName string
|
||
|
|
maxAge time.Duration
|
||
|
|
mutex sync.RWMutex
|
||
|
|
eventHandler Handler
|
||
|
|
outFh *os.File
|
||
|
|
pattern *strftime.Strftime
|
||
|
|
rotationTime time.Duration
|
||
|
|
rotationSize int64
|
||
|
|
rotationCount uint
|
||
|
|
forceNewFile bool
|
||
|
|
}
|
||
|
|
|
||
|
|
// Clock is the interface used by the RotateLogs
|
||
|
|
// object to determine the current time
|
||
|
|
type Clock interface {
|
||
|
|
Now() time.Time
|
||
|
|
}
|
||
|
|
type clockFn func() time.Time
|
||
|
|
|
||
|
|
// UTC is an object satisfying the Clock interface, which
|
||
|
|
// returns the current time in UTC
|
||
|
|
var UTC = clockFn(func() time.Time { return time.Now().UTC() })
|
||
|
|
|
||
|
|
// Local is an object satisfying the Clock interface, which
|
||
|
|
// returns the current time in the local timezone
|
||
|
|
var Local = clockFn(time.Now)
|
||
|
|
|
||
|
|
// Option is used to pass optional arguments to
|
||
|
|
// the RotateLogs constructor
|
||
|
|
type Option interface {
|
||
|
|
Name() string
|
||
|
|
Value() interface{}
|
||
|
|
}
|