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file.go
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file.go
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/*******************************************************************************
* Copyright 2019 Dell 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 certificates
import (
"io/ioutil"
"os"
)
// FileWriter is an interface that provides abstraction for writing certificate files to disk. This abstraction is
// necessary for appropriate mocking of this functionality for unit tests
type FileWriter interface {
Write(fileName string, contents []byte, permissions os.FileMode) error
}
// NewFileWriter will instantiate an instance of FileWriter for persisting the given file to disk.
func NewFileWriter() FileWriter {
return fileWriter{}
}
type fileWriter struct{}
// Write performs the actual write operation based on the parameters supplied
func (w fileWriter) Write(fileName string, contents []byte, permissions os.FileMode) (err error) {
return ioutil.WriteFile(fileName, contents, permissions)
}