/// <summary>
/// Creates a file with unique temporary file name with a given extension in the specified folder.
/// File is guaranteed to be unique.
/// Extension may have an initial period.
/// If folder is null, the temporary folder will be used.
/// Caller must delete it when finished.
/// May throw IOException.
/// </summary>
internal static string GetTemporaryFile(string directory, string extension, bool createFile = true)
{
ErrorUtilities.VerifyThrowArgumentLengthIfNotNull(directory, "directory");
ErrorUtilities.VerifyThrowArgumentLength(extension, "extension");
if (extension[0] != '.')
{
extension = '.' + extension;
}
try
{
directory = directory ?? Path.GetTempPath();
Directory.CreateDirectory(directory);
string file = Path.Combine(directory, string.Format("tmp{0}{1}", Guid.NewGuid().ToString("N"), extension));
ErrorUtilities.VerifyThrow(!File.Exists(file), "Guid should be unique");
if (createFile)
{
File.WriteAllText(file, String.Empty);
}
return(file);
}
catch (Exception ex)
{
if (ExceptionHandling.NotExpectedException(ex))
{
throw;
}
throw new IOException(ResourceUtilities.FormatResourceString("Shared.FailedCreatingTempFile", ex.Message), ex);
}
}
/// <summary>
/// This method is used to flag errors in the project file being processed. Do NOT use this method in place of
/// ErrorUtilities.VerifyThrow(), because ErrorUtilities.VerifyThrow() is used to flag internal/programming errors.
///
/// PERF WARNING: calling a method that takes a variable number of arguments is expensive, because memory is allocated for
/// the array of arguments -- do not call this method repeatedly in performance-critical scenarios
/// </summary>
/// <param name="condition">The condition to check.</param>
/// <param name="errorSubCategoryResourceName">The resource string for the error sub-category (can be null).</param>
/// <param name="projectFile">The invalid project file.</param>
/// <param name="innerException">The inner <see cref="Exception"/>.</param>
/// <param name="resourceName">The resource string for the error message.</param>
/// <param name="args">Extra arguments for formatting the error message.</param>
internal static void VerifyThrowInvalidProjectFile
(
bool condition,
string errorSubCategoryResourceName,
BuildEventFileInfo projectFile,
Exception innerException,
string resourceName,
params object[] args
)
{
ErrorUtilities.VerifyThrow(projectFile != null, "Must specify the invalid project file. If project file is not available, use VerifyThrowInvalidProject() and pass in the XML node instead.");
#if DEBUG
if (errorSubCategoryResourceName != null)
{
ResourceUtilities.VerifyResourceStringExists(errorSubCategoryResourceName);
}
ResourceUtilities.VerifyResourceStringExists(resourceName);
#endif
if (!condition)
{
string errorSubCategory = null;
if (errorSubCategoryResourceName != null)
{
errorSubCategory = AssemblyResources.GetString(errorSubCategoryResourceName);
}
string errorCode;
string helpKeyword;
string message = ResourceUtilities.FormatResourceString(out errorCode, out helpKeyword, resourceName, args);
throw new InvalidProjectFileException(projectFile.File, projectFile.Line, projectFile.Column, projectFile.EndLine, projectFile.EndColumn, message, errorSubCategory, errorCode, helpKeyword, innerException);
}
}