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// Copyright 2018 Google 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.
//go:build !windows
// +build !windows
package renameio
import "os"
// WriteFile mirrors ioutil.WriteFile, replacing an existing file with the same
// name atomically.
func WriteFile(filename string, data []byte, perm os.FileMode, opts ...Option) error {
opts = append([]Option{
WithPermissions(perm),
WithExistingPermissions(),
}, opts...)
t, err := NewPendingFile(filename, opts...)
if err != nil {
return err
}
defer t.Cleanup()
if _, err := t.Write(data); err != nil {
return err
}
return t.CloseAtomicallyReplace()
}
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