/// <summary>
/// Patches a set of actions for use with live coding. The new action list will output object files to a different location.
/// </summary>
/// <param name="Actions">Set of actions</param>
/// <param name="OriginalFileToPatchedFile">Dictionary that receives a map of original object file to patched object file</param>
public static void PatchActionGraphForLiveCoding(IEnumerable <Action> Actions, Dictionary <FileReference, FileReference> OriginalFileToPatchedFile)
{
foreach (Action Action in Actions)
{
if (Action.ActionType == ActionType.Compile)
{
if (!Action.CommandPath.GetFileName().Equals("cl-filter.exe", StringComparison.OrdinalIgnoreCase))
{
throw new BuildException("Unable to patch action graph - unexpected executable in compile action ({0})", Action.CommandPath);
}
List <string> Arguments = Utils.ParseArgumentList(Action.CommandArguments);
// Find the index of the cl-filter argument delimiter
int DelimiterIdx = Arguments.IndexOf("--");
if (DelimiterIdx == -1)
{
throw new BuildException("Unable to patch action graph - missing '--' delimiter to cl-filter");
}
// Fix the dependencies path
const string DependenciesPrefix = "-dependencies=";
int DependenciesIdx = 0;
for (;; DependenciesIdx++)
{
if (DependenciesIdx == DelimiterIdx)
{
throw new BuildException("Unable to patch action graph - missing '{0}' argument to cl-filter", DependenciesPrefix);
}
else if (Arguments[DependenciesIdx].StartsWith(DependenciesPrefix, StringComparison.OrdinalIgnoreCase))
{
break;
}
}
FileReference OldDependenciesFile = new FileReference(Arguments[DependenciesIdx].Substring(DependenciesPrefix.Length));
FileItem OldDependenciesFileItem = Action.ProducedItems.First(x => x.Location == OldDependenciesFile);
Action.ProducedItems.Remove(OldDependenciesFileItem);
FileReference NewDependenciesFile = OldDependenciesFile.ChangeExtension(".lc.response");
FileItem NewDependenciesFileItem = FileItem.GetItemByFileReference(NewDependenciesFile);
Action.ProducedItems.Add(NewDependenciesFileItem);
Arguments[DependenciesIdx] = DependenciesPrefix + NewDependenciesFile.FullName;
// Fix the response file
int ResponseFileIdx = DelimiterIdx + 1;
for (; ; ResponseFileIdx++)
{
if (ResponseFileIdx == Arguments.Count)
{
throw new BuildException("Unable to patch action graph - missing response file argument to cl-filter");
}
else if (Arguments[ResponseFileIdx].StartsWith("@", StringComparison.Ordinal))
{
break;
}
}
FileReference OldResponseFile = new FileReference(Arguments[ResponseFileIdx].Substring(1));
FileReference NewResponseFile = new FileReference(OldResponseFile.FullName + ".lc");
const string OutputFilePrefix = "/Fo";
string[] ResponseLines = FileReference.ReadAllLines(OldResponseFile);
for (int Idx = 0; Idx < ResponseLines.Length; Idx++)
{
string ResponseLine = ResponseLines[Idx];
if (ResponseLine.StartsWith(OutputFilePrefix, StringComparison.Ordinal))
{
FileReference OldOutputFile = new FileReference(ResponseLine.Substring(3).Trim('\"'));
FileItem OldOutputFileItem = Action.ProducedItems.First(x => x.Location == OldOutputFile);
Action.ProducedItems.Remove(OldOutputFileItem);
FileReference NewOutputFile = OldOutputFile.ChangeExtension(".lc.obj");
FileItem NewOutputFileItem = FileItem.GetItemByFileReference(NewOutputFile);
Action.ProducedItems.Add(NewOutputFileItem);
OriginalFileToPatchedFile[OldOutputFile] = NewOutputFile;
ResponseLines[Idx] = OutputFilePrefix + "\"" + NewOutputFile.FullName + "\"";
break;
}
}
FileReference.WriteAllLines(NewResponseFile, ResponseLines);
Arguments[ResponseFileIdx] = "@" + NewResponseFile.FullName;
// Update the final arguments
Action.CommandArguments = Utils.FormatCommandLine(Arguments);
}
}
}
