internal string GetRelativeName(AllorsDirectoryInfo baseDirectory)
{
if (this.directoryInfo.Root.FullName.Equals(baseDirectory.directoryInfo.Root.FullName))
{
AllorsDirectoryInfo commonAncestor = this.GetCommonAncestor(baseDirectory);
var ancestors = new List <AllorsDirectoryInfo>();
this.BuildAncestors(commonAncestor, ancestors);
var baseAncestors = new List <AllorsDirectoryInfo>();
baseDirectory.BuildAncestors(commonAncestor, baseAncestors);
var relativePath = new StringBuilder();
foreach (AllorsDirectoryInfo baseAncestor in baseAncestors)
{
if (relativePath.Length > 0)
{
relativePath.Append(Path.DirectorySeparatorChar);
}
relativePath.Append("..");
}
for (int i = ancestors.Count - 1; i >= 0; --i)
{
AllorsDirectoryInfo ancestor = ancestors[i];
if (relativePath.Length > 0)
{
relativePath.Append(Path.DirectorySeparatorChar);
}
relativePath.Append(ancestor.directoryInfo.Name);
}
return(relativePath.ToString());
}
return(null);
}
