*: add license header

LICENSE.md

@@ -186,7 +186,7 @@ Apache License
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright {}
+   Copyright [yyyy] [name of copyright owner]
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
@@ -198,4 +198,4 @@ Apache License
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
-   limitations under the License.
+   limitations under the License.

cmd/backup.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package cmd
 
 import (

cmd/cmd.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package cmd
 
 import (

cmd/restore.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package cmd
 
 import (

cmd/validate.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package cmd
 
 import (

pkg/rtree/check.go → pkg/backup/check.go

@@ -1,19 +1,23 @@
-package rtree
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
+package backup
 
 import (
 	"encoding/hex"
 
 	"github.com/google/btree"
 	"github.com/pingcap/log"
 	"go.uber.org/zap"
+
+	"github.com/pingcap/br/pkg/rtree"
 )
 
-// CheckDupFiles checks if there are any files are duplicated.
-func CheckDupFiles(rangeTree *RangeTree) {
+// checkDupFiles checks if there are any files are duplicated.
+func checkDupFiles(rangeTree *rtree.RangeTree) {
 	// Name -> SHA256
 	files := make(map[string][]byte)
 	rangeTree.Ascend(func(i btree.Item) bool {
-		rg := i.(*Range)
+		rg := i.(*rtree.Range)
 		for _, f := range rg.Files {
 			old, ok := files[f.Name]
 			if ok {

pkg/backup/client.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package backup
 
 import (
@@ -429,7 +431,7 @@ func (bc *Client) BackupRange(
 	})
 
 	// Check if there are duplicated files.
-	rtree.CheckDupFiles(&results)
+	checkDupFiles(&results)
 
 	return nil
 }

pkg/backup/client_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package backup
 
 import (

pkg/backup/metrics.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package backup
 
 import (

pkg/backup/push.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package backup
 
 import (

pkg/backup/safe_point.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package backup
 
 import (

pkg/backup/safe_point_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package backup
 
 import (

pkg/backup/schema.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package backup
 
 import (

pkg/backup/schema_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package backup
 
 import (

pkg/checksum/executor.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package checksum
 
 import (

pkg/checksum/executor_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package checksum
 
 import (

pkg/conn/conn.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package conn
 
 import (

pkg/conn/conn_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package conn
 
 import (

pkg/glue/glue.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package glue
 
 import (

pkg/gluetidb/glue.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package gluetidb
 
 import (

pkg/mock/mock_cluster.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package mock
 
 import (

pkg/mock/mock_cluster_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package mock
 
 import (

pkg/restore/backoff.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package restore
 
 import (

pkg/restore/backoff_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package restore
 
 import (

pkg/restore/client.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package restore
 
 import (

pkg/restore/client_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package restore
 
 import (

pkg/restore/db.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package restore
 
 import (

pkg/restore/db_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package restore
 
 import (

pkg/restore/import.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package restore
 
 import (

pkg/restore/range.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package restore
 
 import (

pkg/restore/range_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package restore
 
 import (

pkg/restore/split.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package restore
 
 import (

pkg/restore/split_client.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package restore
 
 import (

pkg/restore/split_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package restore
 
 import (

pkg/restore/util.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package restore
 
 import (

pkg/restore/util_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package restore
 
 import (

pkg/rtree/rtree.go

@@ -1,15 +1,4 @@
-// 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.
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
 
 package rtree
 

pkg/rtree/rtree_test.go

@@ -1,15 +1,4 @@
-// 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.
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
 
 package rtree
 

pkg/storage/flags.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package storage
 
 import (

pkg/storage/gcs.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package storage
 
 import (

pkg/storage/gcs_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package storage
 
 import (

pkg/storage/local.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package storage
 
 import (

pkg/storage/local_unix.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 // +build !windows
 
 package storage

pkg/storage/local_windows.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 // +build windows
 
 package storage

pkg/storage/noop.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package storage
 
 import "context"

pkg/storage/parse.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package storage
 
 import (

pkg/storage/parse_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package storage
 
 import (

pkg/storage/s3.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package storage
 
 import (

pkg/storage/s3_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package storage
 
 import (

pkg/storage/storage.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package storage
 
 import (

pkg/summary/collector.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package summary
 
 import (

pkg/summary/collector_test.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package summary
 
 import (

pkg/summary/summary.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package summary
 
 import "time"

pkg/task/backup.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package task
 
 import (

pkg/task/backup_raw.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package task
 
 import (

pkg/task/common.go

@@ -1,3 +1,5 @@
+// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
+
 package task
 
 import (