1 files changed, 35 insertions, 0 deletions
diff --git a/internal/io/dlog/loggers/strategy.go b/internal/io/dlog/loggers/strategy.go
new file mode 100644
index 0000000..48e7d44
--- /dev/null
+++ b/internal/io/dlog/loggers/strategy.go
@@ -0,0 +1,35 @@
+package loggers
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+// Rotation is the actual strategy used for log rotation..
+type Rotation int
+
+const (
+	// DailyRotation tells DTail to rotate its logs on a daily basis or on SIGHUP.
+	DailyRotation Rotation = iota
+	// SignalRotation tells DTail to rotate its logs only on SIGHUP.
+	SignalRotation Rotation = iota
+)
+
+// Strategy is a pair of the rotation and the file base.
+type Strategy struct {
+	// Rotation is the actual rotation strategy used.
+	Rotation Rotation
+	// FileBase can be a name (e.g. "dserver", "dmap") when signal rotation is used.
+	FileBase string
+}
+
+// NewStrategy returns the stratey based on its name.
+func NewStrategy(name string) Strategy {
+	switch strings.ToLower(name) {
+	case "daily":
+		return Strategy{DailyRotation, ""}
+	default:
+		return Strategy{SignalRotation, filepath.Base(os.Args[0])}
+	}
+}