mirror of
https://github.com/jkaninda/go-storage.git
synced 2025-12-06 08:39:39 +01:00
133 lines
3.3 KiB
Go
133 lines
3.3 KiB
Go
/*
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MIT License
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Copyright (c) 2023 Jonas Kaninda
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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package local
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import (
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"github.com/jkaninda/go-storage/pkg"
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"io"
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"os"
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"path/filepath"
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"time"
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)
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type localStorage struct {
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*pkg.Backend
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}
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type Config struct {
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LocalPath string
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RemotePath string
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}
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// NewStorage creates new Storage
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func NewStorage(conf Config) pkg.Storage {
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return &localStorage{
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Backend: &pkg.Backend{
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LocalPath: conf.LocalPath,
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RemotePath: conf.RemotePath,
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},
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}
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}
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// Copy copies file to the local destination path
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func (l localStorage) Copy(file string) error {
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if _, err := os.Stat(filepath.Join(l.LocalPath, file)); os.IsNotExist(err) {
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return err
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}
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err := copyFile(filepath.Join(l.LocalPath, file), filepath.Join(l.RemotePath, file))
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if err != nil {
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return err
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}
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return nil
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}
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// CopyFrom copies file from a Path to local path
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func (l localStorage) CopyFrom(file string) error {
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if _, err := os.Stat(filepath.Join(l.RemotePath, file)); os.IsNotExist(err) {
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return err
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}
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err := copyFile(filepath.Join(l.RemotePath, file), filepath.Join(l.LocalPath, file))
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if err != nil {
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return err
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}
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return nil
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}
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// Prune deletes old backup created more than specified days
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func (l localStorage) Prune(retentionDays int) error {
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currentTime := time.Now()
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// Delete file
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deleteFile := func(filePath string) error {
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err := os.Remove(filePath)
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return err
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}
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// Walk through the directory and delete files modified more than specified days ago
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err := filepath.Walk(l.RemotePath, func(filePath string, fileInfo os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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// Check if it's a regular file and if it was modified more than specified days ago
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if fileInfo.Mode().IsRegular() {
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timeDiff := currentTime.Sub(fileInfo.ModTime())
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if timeDiff.Hours() > 24*float64(retentionDays) {
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err := deleteFile(filePath)
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if err != nil {
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return err
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}
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}
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}
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return nil
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})
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if err != nil {
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return err
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}
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return nil
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}
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// Name returns the storage name
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func (l localStorage) Name() string {
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return "local"
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}
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// copyFile copies file
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func copyFile(src, dst string) error {
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in, err := os.Open(src)
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if err != nil {
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return err
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}
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defer in.Close()
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out, err := os.Create(dst)
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if err != nil {
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return err
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}
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_, err = io.Copy(out, in)
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if err != nil {
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out.Close()
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return err
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}
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return out.Close()
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}
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