dbtester/analyze/util.go

53 lines
1.3 KiB
Go

// Copyright 2016 CoreOS, 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,
// 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.
package analyze
import (
"fmt"
"io"
"os"
"path/filepath"
)
func copyFile(src, dst string) error {
if err := os.MkdirAll(filepath.Dir(dst), 0755); err != nil {
return fmt.Errorf("copy: mkdirall: %v", err)
}
r, err := os.Open(src)
if err != nil {
return fmt.Errorf("copy: open(%q): %v", src, err)
}
defer r.Close()
w, err := os.Create(dst)
if err != nil {
return fmt.Errorf("copy: create(%q): %v", dst, err)
}
defer w.Close()
// func Copy(dst Writer, src Reader) (written int64, err error)
if _, err = io.Copy(w, r); err != nil {
return err
}
if err := w.Sync(); err != nil {
return err
}
if _, err := w.Seek(0, 0); err != nil {
return err
}
return nil
}