enhancement: only keep raft logs from the past 7 days

Signed-off-by: wenjia322 <[email protected]>

raftstore/log_test.go

@@ -0,0 +1,73 @@
+package raftstore
+
+import (
+	"os"
+	"path"
+	"testing"
+	"time"
+)
+
+// test auto remove raft log 7 days ago
+func TestCleanRaftLog(t *testing.T) {
+	dir := path.Join("/tmp/raft", "logs")
+	_, err := os.Stat(dir)
+	if os.IsNotExist(err) {
+		os.MkdirAll(dir, 0755)
+	}
+
+	logFilePath1 := path.Join(dir, "test_clean.log.old")
+	if err = createFile(logFilePath1, true); err != nil {
+		t.Errorf("create file[%v] err[%v]", logFilePath1, err)
+		return
+	}
+	logFilePath2 := path.Join(dir, "test_clean.log")
+	if err = createFile(logFilePath2, true); err != nil {
+		t.Errorf("create file[%v] err[%v]", logFilePath2, err)
+		return
+	}
+	logFilePath3 := path.Join(dir, "test_clean.log.new")
+	if err = createFile(logFilePath3, false); err != nil {
+		t.Errorf("create file[%v] err[%v]", logFilePath3, err)
+		return
+	}
+
+	newRaftLogger("/tmp/raft")
+	time.Sleep(time.Second * 10)
+
+	_, err = os.Stat(logFilePath1)
+	if !os.IsNotExist(err) {
+		t.Errorf("expect file[%v] doesn't exist but err is [%v]", logFilePath1, err)
+		return
+	}
+	_, err = os.Stat(logFilePath2)
+	if err != nil {
+		t.Errorf("expect file[%v] exists but err is [%v]", logFilePath2, err)
+		return
+	}
+	_, err = os.Stat(logFilePath3)
+	if err != nil {
+		t.Errorf("expect file[%v] exists but err is [%v]", logFilePath3, err)
+		return
+	}
+
+	os.RemoveAll(dir)
+}
+
+// create file and modify modTime to 7 days ago
+func createFile(logFilePath string, modTime bool) (err error) {
+	_, err = os.Create(logFilePath)
+	if err != nil {
+		return
+	}
+	info, err := os.Stat(logFilePath)
+	if err != nil {
+		return
+	}
+	if modTime {
+		err = os.Chtimes(logFilePath, info.ModTime().AddDate(0, 0, -7), info.ModTime().AddDate(0, 0, -7))
+		if err != nil {
+			return
+		}
+	}
+	return
+}