/// <summary>
/// Create a canonical Uri from 'absoluteFileSystemPath' by adjusting the casing of each
/// non-root segment.
/// </summary>
/// <remarks>
/// Does no input validation.
/// </remarks>
public Uri CanonicaliseAbsolute(WindowsFileSystemApi.Internal api, string absoluteFileSystemPath)
{
var absoluteUri = new Uri(absoluteFileSystemPath);
var root = Path.GetPathRoot(absoluteFileSystemPath);
Debug.Assert(absoluteFileSystemPath.StartsWith(root));
var rootUri = new Uri(root, UriKind.Absolute);
if (!PathUtils.TryGetRelativeSegments(rootUri, absoluteUri, out var parts))
{
throw new ArgumentException($"Unable to parse path: {absoluteFileSystemPath}", nameof(absoluteFileSystemPath));
}
TryCanonicaliseRelative(api, root, parts);
var relativeParts = Path.Combine(parts);
return(new Uri(rootUri, PathUtils.IsDirectoryUri(absoluteUri) ? relativeParts.AsDirectoryPath() : relativeParts));
}
/// <summary>
/// Adjust the casing of each element of 'parts' to match that on the filesystem.
/// </summary>
/// <remarks>
/// Does no input validation.
/// The 'parts' array is modified in-place.
/// </remarks>
public bool TryCanonicaliseRelative(WindowsFileSystemApi.Internal api, string containerPath, string[] parts)
{
var container = api.Lookup(containerPath) as DirectoryInfo;
for (var i = 0; i < parts.Length; i++)
{
if (container == null)
{
return(false);
}
var current = api.Lookup(container, parts[i]);
if (current == null)
{
return(false);
}
parts[i] = current.Name;
container = current as DirectoryInfo;
}
return(true);
}
