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