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add: remotefs/DownloadDirectory function to support recursive download
Signed-off-by: Michael Kaplan <[email protected]>
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Original file line number | Diff line number | Diff line change |
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package remotefs | ||
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||
import ( | ||
"fmt" | ||
"io/fs" | ||
"os" | ||
"path/filepath" | ||
) | ||
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// DownloadDirectory downloads all files and directories recursively from the remote system to local directory. | ||
func DownloadDirectory(fsys FS, src, dst string) error { | ||
walkErr := fs.WalkDir(fsys, src, func(path string, dir fs.DirEntry, err error) error { | ||
if err != nil { | ||
return fmt.Errorf("walk remote directory: %w", err) | ||
} | ||
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relPath, err := filepath.Rel(src, path) | ||
if err != nil { | ||
return fmt.Errorf("calculate relative path: %w", err) | ||
} | ||
targetPath := filepath.Join(dst, relPath) | ||
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if dir.IsDir() { | ||
dirInfo, err := dir.Info() | ||
if err != nil { | ||
return fmt.Errorf("get dir info: %w", err) | ||
} | ||
if err := os.MkdirAll(targetPath, dirInfo.Mode()&os.ModePerm); err != nil { | ||
return fmt.Errorf("create local directory: %w", err) | ||
} | ||
} else { | ||
if err := Download(fsys, path, targetPath); err != nil { | ||
return fmt.Errorf("download directory: %w", err) | ||
} | ||
} | ||
return nil | ||
}) | ||
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if walkErr != nil { | ||
return fmt.Errorf("walk remote directory tree: %w", walkErr) | ||
} | ||
return nil | ||
} |