/// <summary>
/// Attempts to find an existing file in the set of include dirs,
/// given the relative path.
/// </summary>
/// <param name="relativePath">The relative file path to search for</param>
/// <returns>The absolute path string. Null if an existing file cannot be found.</returns>
public FilePath GetFilePathFromRelativePath(string relativePath)
{
var includeDirs = IsInternal ?
Settings.Default.IncludeDirs.Cast <string>().Select(path => new FilePath(path)) :
IncludeDirs;
foreach (FilePath dir in includeDirs.Where(dir => File.Exists(Path.Combine(dir, relativePath))))
{
return(dir.Combine(relativePath));
}
if (IsInternal)
{
return(null);
}
return(File.Exists(ProjectDirectory.Combine(relativePath)) ?
ProjectDirectory.Combine(relativePath) :
null);
}