/// <summary>
/// Ctor
/// </summary>
/// <param name="parameters">Caller-specified command parameters. Will throw if the parameters
/// are invalid.</param>
internal LocationHelper(CommandParameters parameters)
{
if (!parameters.TryGetString(CommandConstStrings.OutputPath, out string outputPath))
{
outputPath = GetEnvironmentVariablePathValue() ?? GetFallbackPathValue();
}
if (string.IsNullOrWhiteSpace(outputPath))
{
throw new A11yAutomationException(DisplayStrings.ErrorOutputPathIsTrivial);
}
if (!parameters.TryGetString(CommandConstStrings.OutputFile, out string outputFile))
{
throw new A11yAutomationException(DisplayStrings.ErrorOutputFileIsNotSpecified);
}
if (string.IsNullOrWhiteSpace(outputFile))
{
throw new A11yAutomationException(DisplayStrings.ErrorOutputFileIsTrivial);
}
if (!Directory.Exists(outputPath))
{
Directory.CreateDirectory(outputPath);
}
string outputFileFormat = null;
string extension = Path.GetExtension(outputFile);
// If extension is missing in the file name
if (string.IsNullOrWhiteSpace(extension))
{
// If output file format is PRESENT check it is valid
if (parameters.TryGetString(CommandConstStrings.OutputFileFormat, out outputFileFormat))
{
if (string.IsNullOrWhiteSpace(outputFileFormat))
{
throw new A11yAutomationException(DisplayStrings.ErrorOutputFileFormatIsTrivial);
}
outputFileFormat = ValidateExtension(outputFileFormat);
}
else
{
// If file format absent set default value
outputFileFormat = ValidateExtension(SarifExtension);
}
}
else
{
// Validate the extension that was passed in the filename
outputFileFormat = ValidateExtension(extension);
outputFile = Path.GetFileNameWithoutExtension(outputFile);
}
// If extension is present in the filename and a fileformat is also being passed in, we will honor the extension in the filename.
this.OutputPath = outputPath;
this.OutputFileFormat = outputFileFormat;
this.OutputFile = outputFile;
}
/// <summary>
/// Check to see if files should be retained even when no violations are found
/// </summary>
/// <param name="parameters">The CommandParameters object to check</param>
/// <returns>true iff files are always retained, even if no errors exist.
/// Retention is our default behavior unless we're explicitly told to discard</returns>
internal static bool RetainIfNoViolations(this CommandParameters parameters)
{
return(!(parameters.TryGetString(CommandConstStrings.NoViolationPolicy, out string policy) &&
policy.Equals(CommandConstStrings.Discard, StringComparison.OrdinalIgnoreCase)));
}