mirror of https://github.com/octoleo/restic.git
77 lines
1.9 KiB
Go
77 lines
1.9 KiB
Go
/*
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* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package minio
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import (
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"io/ioutil"
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"os"
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"path/filepath"
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"sync"
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)
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// tempFile - temporary file container.
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type tempFile struct {
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*os.File
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mutex *sync.Mutex
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}
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// newTempFile returns a new temporary file, once closed it automatically deletes itself.
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func newTempFile(prefix string) (*tempFile, error) {
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// use platform specific temp directory.
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file, err := ioutil.TempFile(os.TempDir(), prefix)
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if err != nil {
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return nil, err
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}
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return &tempFile{
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File: file,
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mutex: new(sync.Mutex),
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}, nil
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}
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// cleanupStaleTempFiles - cleanup any stale files present in temp directory at a prefix.
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func cleanupStaleTempfiles(prefix string) error {
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globPath := filepath.Join(os.TempDir(), prefix) + "*"
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staleFiles, err := filepath.Glob(globPath)
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if err != nil {
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return err
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}
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for _, staleFile := range staleFiles {
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if err := os.Remove(staleFile); err != nil {
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return err
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}
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}
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return nil
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}
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// Close - closer wrapper to close and remove temporary file.
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func (t *tempFile) Close() error {
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t.mutex.Lock()
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defer t.mutex.Unlock()
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if t.File != nil {
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// Close the file.
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if err := t.File.Close(); err != nil {
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return err
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}
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// Remove file.
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if err := os.Remove(t.File.Name()); err != nil {
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return err
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}
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t.File = nil
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}
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return nil
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}
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