switch to different copy
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parent
b0a20c223a
commit
6e303a42c6
GPG Key ID:
1B4D0AAF6E558816
78
backup.go
78
backup.go
@ -5,12 +5,14 @@ import (
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"bufio"
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"fmt"
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"io"
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"log"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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"time"
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"github.com/otiai10/copy"
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"github.com/pelletier/go-toml"
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)
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@ -95,62 +97,15 @@ func zipIt(pathToZip string, pathToFiles string) error {
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return nil
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}
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func _CopyDir(source string, destination string) error {
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srcDir, err := os.Stat(source)
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if err != nil {
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return err
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}
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if !srcDir.IsDir() {
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return fmt.Errorf("source is not a directory")
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}
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dstDir, err := os.Stat(destination)
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if err != nil {
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return err
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}
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if !dstDir.IsDir() {
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return fmt.Errorf("destination is not a directory")
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}
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return nil
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}
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func _CopyFile(source string, destination string) error {
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srcFile, err := os.Open(source)
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dstFile, err := os.Create(destination)
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_, err = io.Copy(dstFile, srcFile)
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if err != nil {
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return err
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}
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err = dstFile.Sync()
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if err != nil {
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return err
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}
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err = srcFile.Close()
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if err != nil {
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return err
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}
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err = dstFile.Close()
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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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func backup(when string) error {
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var err error
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tmpPath := fmt.Sprint("/tmp/update/", when, "_backup")
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log.Printf("tmpPath is: %s\n", tmpPath)
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pacmanDb, err := parsePacmanConf()
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if err != nil {
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return err
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}
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log.Printf("pacmanDB is at: %s\n", pacmanDb)
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err = os.MkdirAll(tmpPath, 0755)
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if err != nil {
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@ -171,7 +126,7 @@ func backup(when string) error {
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}
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if strings.Compare(when, "post") != 0 {
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err = _CopyDir(pacmanDb, fmt.Sprint(tmpPath, "/", pacmanDb))
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err = copy.Copy(pacmanDb, fmt.Sprint(tmpPath, "/", pacmanDb))
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if err != nil {
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return err
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}
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@ -179,13 +134,16 @@ func backup(when string) error {
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current_time := time.Now().Format(time.RFC3339)
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pathToZip := fmt.Sprint(tmpPath, "_", current_time, ".zip")
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log.Printf("pathToZip is: %s\n", pathToZip)
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err = zipIt(pathToZip, tmpPath)
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if err != nil {
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return err
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}
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for _, backup_location := range backup_locations {
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err = _CopyFile(pathToZip, fmt.Sprint(backup_location, "/", when, "_backup_", current_time, ".zip"))
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backup_path := fmt.Sprintf("%s/%s/%s_backup_%s.zip", backup_location, when, when, current_time)
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log.Printf("backup_path is: %s\n", backup_path)
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err = copy.Copy(pathToZip, backup_path)
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if err != nil {
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return err
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}
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@ -195,6 +153,23 @@ func backup(when string) error {
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}
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func main() {
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if strings.Compare(os.Args[1], "debug") != 0 {
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log.SetOutput(io.Discard)
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} else {
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logFile, err := os.OpenFile("/tmp/update.txt", os.O_CREATE | os.O_APPEND | os.O_RDWR, 0666)
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if err != nil {
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panic(err)
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}
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defer logFile.Close()
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mw := io.MultiWriter(os.Stdout, logFile)
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log.SetOutput(mw)
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fmt.Println("Logfile is /tmp/update.txt")
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}
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log.Printf("Cmdline argument is: %s\n", os.Args[1])
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os.RemoveAll("/tmp/update")
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tree, err := toml.LoadFile("/etc/update.toml")
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@ -204,6 +179,7 @@ func main() {
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}
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backup_locations = tree.GetArray("backup.locations").([]string)
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log.Printf("backup_locations are: %s\n", backup_locations)
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err = backup(os.Args[1])
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if err != nil {
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134
copy.go
134
copy.go
@ -1,134 +0,0 @@
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/* MIT License
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*
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* Copyright (c) 2017 Roland Singer [roland.singer@desertbit.com]
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*
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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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*
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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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*
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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 main
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import (
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"path/filepath"
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)
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// CopyFile copies the contents of the file named src to the file named
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// by dst. The file will be created if it does not already exist. If the
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// destination file exists, all it's contents will be replaced by the contents
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// of the source file. The file mode will be copied from the source and
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// the copied data is synced/flushed to stable storage.
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func CopyFile(src, dst string) (err error) {
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in, err := os.Open(src)
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if err != nil {
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return
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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
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}
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defer func() {
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if e := out.Close(); e != nil {
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err = e
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}
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}()
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_, err = io.Copy(out, in)
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if err != nil {
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return
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}
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err = out.Sync()
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if err != nil {
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return
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}
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si, err := os.Stat(src)
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if err != nil {
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return
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}
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err = os.Chmod(dst, si.Mode())
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if err != nil {
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return
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}
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return
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}
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// CopyDir recursively copies a directory tree, attempting to preserve permissions.
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// Source directory must exist, destination directory must *not* exist.
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// Symlinks are ignored and skipped.
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func CopyDir(src string, dst string) (err error) {
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src = filepath.Clean(src)
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dst = filepath.Clean(dst)
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si, err := os.Stat(src)
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if err != nil {
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return err
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}
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if !si.IsDir() {
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return fmt.Errorf("source is not a directory")
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}
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_, err = os.Stat(dst)
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if err != nil && !os.IsNotExist(err) {
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return
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}
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if err == nil {
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return fmt.Errorf("destination already exists")
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}
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err = os.MkdirAll(dst, si.Mode())
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if err != nil {
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return
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}
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entries, err := ioutil.ReadDir(src)
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if err != nil {
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return
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}
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for _, entry := range entries {
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srcPath := filepath.Join(src, entry.Name())
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dstPath := filepath.Join(dst, entry.Name())
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if entry.IsDir() {
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err = CopyDir(srcPath, dstPath)
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if err != nil {
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return
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}
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} else {
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// Skip symlinks.
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if entry.Mode()&os.ModeSymlink != 0 {
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continue
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}
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err = CopyFile(srcPath, dstPath)
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if err != nil {
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return
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}
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}
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}
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return
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}
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10
go.mod
10
go.mod
@ -2,4 +2,12 @@ module backup
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go 1.23.0
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require github.com/pelletier/go-toml v1.9.5
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require (
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github.com/otiai10/copy v1.14.0
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github.com/pelletier/go-toml v1.9.5
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)
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require (
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golang.org/x/sync v0.3.0 // indirect
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golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect
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)
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6
go.sum
6
go.sum
@ -1,2 +1,8 @@
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github.com/otiai10/copy v1.14.0 h1:dCI/t1iTdYGtkvCuBG2BgR6KZa83PTclw4U5n2wAllU=
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github.com/otiai10/copy v1.14.0/go.mod h1:ECfuL02W+/FkTWZWgQqXPWZgW9oeKCSQ5qVfSc4qc4w=
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github.com/pelletier/go-toml v1.9.5 h1:4yBQzkHv+7BHq2PQUZF3Mx0IYxG7LsP222s7Agd3ve8=
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github.com/pelletier/go-toml v1.9.5/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
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golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E=
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golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
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golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 h1:0A+M6Uqn+Eje4kHMK80dtF3JCXC4ykBgQG4Fe06QRhQ=
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golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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