cluster/audit: audit log in seconds maybe leads to file overwriten

pkg/cluster/audit/audit.go

@@ -60,7 +60,7 @@ func ShowAuditList(dir string) error {
 		if err != nil {
 			continue
 		}
-		t := time.Unix(ts, 0)
+		t := time.Unix(ts/1e9, 0)
 		cmd, err := firstLine(fi.Name())
 		if err != nil {
 			continue
@@ -82,7 +82,7 @@ func ShowAuditList(dir string) error {
 
 // OutputAuditLog outputs audit log.
 func OutputAuditLog(dir string, data []byte) error {
-	fname := filepath.Join(dir, base52.Encode(time.Now().Unix()))
+	fname := filepath.Join(dir, base52.Encode(time.Now().UnixNano()))
 	return ioutil.WriteFile(fname, data, 0644)
 }
 
@@ -103,7 +103,7 @@ func ShowAuditLog(dir string, auditID string) error {
 		return errors.Trace(err)
 	}
 
-	t := time.Unix(ts, 0)
+	t := time.Unix(ts/1e9, 0)
 	hint := fmt.Sprintf("- OPERATION TIME: %s -", t.Format("2006-01-02T15:04:05"))
 	line := strings.Repeat("-", len(hint))
 	_, _ = os.Stdout.WriteString(color.MagentaString("%s\n%s\n%s\n", line, hint, line))

pkg/cluster/audit/audit_test.go

@@ -0,0 +1,65 @@
+// Copyright 2020 PingCAP, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package audit
+
+import (
+	"os"
+	"path"
+	"path/filepath"
+	"runtime"
+
+	. "github.com/pingcap/check"
+	"golang.org/x/sync/errgroup"
+)
+
+var _ = Suite(&testAuditSuite{})
+
+type testAuditSuite struct{}
+
+func currentDir() string {
+	_, file, _, _ := runtime.Caller(0)
+	return filepath.Dir(file)
+}
+
+func auditDir() string {
+	return path.Join(currentDir(), "testdata", "audit")
+}
+
+func (s *testAuditSuite) SetUpSuite(c *C) {
+	_ = os.RemoveAll(auditDir())
+	_ = os.MkdirAll(auditDir(), 0777)
+}
+
+func (s *testAuditSuite) TearDownSuite(c *C) {
+	_ = os.RemoveAll(auditDir())
+}
+
+func (s *testAuditSuite) TestOutputAuditLog(c *C) {
+	dir := auditDir()
+	var g errgroup.Group
+	for i := 0; i < 20; i++ {
+		g.Go(func() error { return OutputAuditLog(dir, []byte("audit log")) })
+	}
+	err := g.Wait()
+	c.Assert(err, IsNil)
+
+	var paths []string
+	err = filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
+		// simply filter the not relate files.
+		paths = append(paths, path)
+		return nil
+	})
+	c.Assert(err, IsNil)
+	c.Assert(len(paths), Equals, 20)
+}

tests/tiup-dm/run.sh

@@ -46,7 +46,7 @@ function tiup-dm() {
     mkdir -p ~/.tiup/bin && cp -f ./root.json ~/.tiup/bin/
     # echo "in function"
     if [ -f "./bin/tiup-dm.test" ]; then
-        ./bin/tiup-dm.test  -test.coverprofile=./cover/cov.itest-$(date +'%s')-$RANDOM.out __DEVEL--i-heard-you-like-tests "$@"
+        ./bin/tiup-dm.test -test.coverprofile=./cover/cov.itest-$(date +'%s')-$RANDOM.out __DEVEL--i-heard-you-like-tests "$@"
     else
         ../../bin/tiup-dm "$@"
     fi