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local: fix encoding of root path
fix #7824 Statements like rclone copy <somewhere> . will spontaneously miss if . expands to a path with a Full Width replacement character. This is due to the incorrect order in which relative paths and decoding were handled in the original implementation.
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@ -1568,32 +1568,47 @@ func (o *Object) SetMetadata(ctx context.Context, metadata fs.Metadata) error {
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}
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func cleanRootPath(s string, noUNC bool, enc encoder.MultiEncoder) string {
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if runtime.GOOS != "windows" || !strings.HasPrefix(s, "\\") {
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if !filepath.IsAbs(s) {
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s2, err := filepath.Abs(s)
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if err == nil {
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s = s2
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}
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} else {
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s = filepath.Clean(s)
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}
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}
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var vol string
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if runtime.GOOS == "windows" {
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s = filepath.ToSlash(s)
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vol := filepath.VolumeName(s)
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vol = filepath.VolumeName(s)
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if vol == `\\?` && len(s) >= 6 {
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// `\\?\C:`
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vol = s[:6]
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}
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s = vol + enc.FromStandardPath(s[len(vol):])
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s = filepath.FromSlash(s)
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if !noUNC {
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// Convert to UNC
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s = file.UNCPath(s)
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}
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return s
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s = s[len(vol):]
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}
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// Don't use FromStandardPath. Make sure Dot (`.`, `..`) as name will not be reencoded
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// Take care of the case Standard: ././‛. (the first dot means current directory)
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if enc != encoder.Standard {
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s = filepath.ToSlash(s)
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parts := strings.Split(s, "/")
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encoded := make([]string, len(parts))
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changed := false
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for i, p := range parts {
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if (p == ".") || (p == "..") {
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encoded[i] = p
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continue
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}
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part := enc.FromStandardName(p)
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changed = changed || part != p
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encoded[i] = part
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}
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if changed {
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s = strings.Join(encoded, "/")
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}
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s = filepath.FromSlash(s)
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}
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if runtime.GOOS == "windows" {
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s = vol + s
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}
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s2, err := filepath.Abs(s)
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if err == nil {
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s = s2
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}
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if !noUNC {
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// Convert to UNC. It does nothing on non windows platforms.
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s = file.UNCPath(s)
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}
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s = enc.FromStandardPath(s)
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return s
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}
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