mirror of https://github.com/portainer/portainer
69 lines
1.4 KiB
Go
69 lines
1.4 KiB
Go
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package backup
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import (
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"errors"
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"io"
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"os"
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"path/filepath"
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"strings"
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)
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func copyPath(path string, toDir string) error {
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info, err := os.Stat(path)
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if err != nil && errors.Is(err, os.ErrNotExist) {
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// skip copy if file does not exist
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return nil
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}
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if !info.IsDir() {
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destination := filepath.Join(toDir, info.Name())
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return copyFile(path, destination)
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}
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return copyDir(path, toDir)
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}
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func copyDir(fromDir, toDir string) error {
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cleanedSourcePath := filepath.Clean(fromDir)
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parentDirectory := filepath.Dir(cleanedSourcePath)
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err := filepath.Walk(cleanedSourcePath, func(path string, info 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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destination := filepath.Join(toDir, strings.TrimPrefix(path, parentDirectory))
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if info.IsDir() {
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return nil // skip directory creations
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}
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if info.Mode()&os.ModeSymlink != 0 { // entry is a symlink
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return nil // don't copy symlinks
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}
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return copyFile(path, destination)
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})
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return err
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}
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// copies regular a file from src to dst
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func copyFile(src, dst string) error {
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from, 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 from.Close()
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// has to include 'execute' bit, otherwise fails. MkdirAll follows `mkdir -m` restrictions
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if err := os.MkdirAll(filepath.Dir(dst), 0744); err != nil {
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return err
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}
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to, 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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defer to.Close()
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_, err = io.Copy(to, from)
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return err
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}
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