/// <summary>
/// Calls GetDependents on the given filename, and then resolves the dependents
/// and find further (second order and up) dependents.
/// </summary>
/// <param name="filename"></param>
public void GetDependentsRecursive(string filename)
{
GetDependents(filename, true);
while (true)
{
HashSet<string> unresolvedDependents = new HashSet<string>(new FilenameKeyComparer());
foreach (FileCandidates fileCandidates in AllFileCandidates.Values)
{
foreach (string candidate in fileCandidates.FullPathCandidates)
{
var dependents = GetDependents(candidate);
foreach (string dependent in dependents)
{
if (!AllFileCandidates.ContainsKey(dependent))
{
unresolvedDependents.Add(dependent);
}
}
}
}
if (unresolvedDependents.Count == 0)
{
break;
}
foreach (string dependent in unresolvedDependents)
{
ResolveFilename(dependent);
}
}
}
/// <summary>
///
/// </summary>
/// <param name="filename"></param>
/// <returns></returns>
public List<string> ResolveFilename(string filename)
{
string pathlessFilename = Path.GetFileName(filename);
if (!AllFileCandidates.TryGetValue(pathlessFilename, out FileCandidates fileCandidates))
{
fileCandidates = new FileCandidates()
{
PathlessFilename = pathlessFilename,
SearchPathVersion = 0,
};
AllFileCandidates.Add(pathlessFilename, fileCandidates);
}
if (Path.IsPathRooted(filename))
{
// If this function is called with a rooted path, it is prevented from
// conducting a search using the current list of search paths.
var fileInfo = new FileInfo(filename);
if (fileInfo.Exists)
{
string fullname = fileInfo.FullName;
fileCandidates.FullPathCandidates.Add(fullname);
return new List<string> { fullname };
}
else
{
return new List<string>();
}
}
else if (fileCandidates.SearchPathVersion < SearchPathVersion)
{
// Conducting a search using the current list of search paths.
// This section of code is only entered if search (using the same
// list of search paths) has not been done before.
foreach (string dir in SearchPaths)
{
var fileInfo = new FileInfo(Path.Combine(dir, filename));
if (fileInfo.Exists)
{
string fullname = fileInfo.FullName;
fileCandidates.FullPathCandidates.Add(fullname);
}
}
// Mark the completion of this search, so that if the same filename
// is searched again while SearchPaths stays the same, no redundant
// work is performed.
fileCandidates.SearchPathVersion = SearchPaths.Count;
}
return new List<string>(fileCandidates.FullPathCandidates);
}
