/// <summary>
/// Called when a response file switch is detected on the command line. It loads the specified response file, and parses
/// each line in it like a command line. It also prevents multiple (or recursive) inclusions of the same response file.
/// </summary>
/// <param name="unquotedCommandLineArg"></param>
/// <param name="commandLineSwitches"></param>
private static void GatherResponseFileSwitch(string unquotedCommandLineArg, CommandLineSwitches commandLineSwitches)
{
try
{
string responseFile = unquotedCommandLineArg.Substring(1);
if (responseFile.Length == 0)
{
commandLineSwitches.SetSwitchError("MissingResponseFileError", unquotedCommandLineArg);
}
else if (!File.Exists(responseFile))
{
commandLineSwitches.SetParameterError("ResponseFileNotFoundError", unquotedCommandLineArg);
}
else
{
// normalize the response file path to help catch multiple (or recursive) inclusions
responseFile = Path.GetFullPath(responseFile);
// NOTE: for network paths or mapped paths, normalization is not guaranteed to work
bool isRepeatedResponseFile = false;
foreach (string includedResponseFile in s_includedResponseFiles)
{
if (String.Compare(responseFile, includedResponseFile, StringComparison.OrdinalIgnoreCase) == 0)
{
commandLineSwitches.SetParameterError("RepeatedResponseFileError", unquotedCommandLineArg);
isRepeatedResponseFile = true;
break;
}
}
if (!isRepeatedResponseFile)
{
s_includedResponseFiles.Add(responseFile);
ArrayList argsFromResponseFile;
using (StreamReader responseFileContents = new StreamReader(responseFile, Encoding.Default)) // HIGHCHAR: If response files have no byte-order marks, then assume ANSI rather than ASCII.
{
argsFromResponseFile = new ArrayList();
while (responseFileContents.Peek() != -1)
{
// ignore leading whitespace on each line
string responseFileLine = responseFileContents.ReadLine().TrimStart();
// skip comment lines beginning with #
if (!responseFileLine.StartsWith("#", StringComparison.Ordinal))
{
// treat each line of the response file like a command line i.e. args separated by whitespace
argsFromResponseFile.AddRange(QuotingUtilities.SplitUnquoted(Environment.ExpandEnvironmentVariables(responseFileLine)));
}
}
}
GatherCommandLineSwitches(argsFromResponseFile, commandLineSwitches);
}
}
}
catch (NotSupportedException e)
{
commandLineSwitches.SetParameterError("ReadResponseFileError", unquotedCommandLineArg, e);
}
catch (SecurityException e)
{
commandLineSwitches.SetParameterError("ReadResponseFileError", unquotedCommandLineArg, e);
}
catch (UnauthorizedAccessException e)
{
commandLineSwitches.SetParameterError("ReadResponseFileError", unquotedCommandLineArg, e);
}
catch (IOException e)
{
commandLineSwitches.SetParameterError("ReadResponseFileError", unquotedCommandLineArg, e);
}
}
