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feat: make prefix path helper function public. #62

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Merged
john-behm-bertelsmann merged 1 commit into from
Sep 19, 2025
Merged

feat: make prefix path helper function public. #62

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14 changes: 14 additions & 0 deletions prefixfs.go
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Original file line number Diff line number Diff line change
Expand Up @@ -411,3 +411,17 @@ func reconstructVolume(absOldPath, prefix string) string {
return filepath.Clean(parts[0] + ":" + separator + parts[1])
}
}

// PrefixPath joins two paths together, making sure the resulting path is absolute
// and normalized (volume names are converted to root relative paths).
// On Windows the volume name is preserved, but the colon is removed.
func PrefixPath(prefix, name string) (string, error) {
name = filepath.FromSlash(name)
absolute, err := filepath.Abs(filepath.FromSlash(name))
if err != nil {
return "", fmt.Errorf("failed to make path absolute %s: %w", name, err)
}
absolute = normalizeVolumePath(absolute)
absolute = filepath.Join(prefix, absolute)
return absolute, nil
}
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