ErrorCode writeOutput()
{
XmlTextWriter?metricFile = null;
try
{
// Create the writer
if (outputFile != null)
{
if (!quiet)
{
Console.WriteLine($"Writing output to '{outputFile}'...");
}
metricFile = new XmlTextWriter(outputFile, Encoding.UTF8);
}
else
{
metricFile = new XmlTextWriter(Console.OpenStandardOutput(), Console.OutputEncoding);
}
MetricsOutputWriter.WriteMetricFile(metricDatas, metricFile);
if (outputFile == null)
{
metricFile.WriteString(Environment.NewLine + Environment.NewLine);
}
return(ErrorCode.None);
}
#pragma warning disable CA1031 // Do not catch general exception types - gracefully catch exceptions and log them to the console and output file.
catch (Exception ex)
{
Console.WriteLine(ex.Message);
return(ErrorCode.WriteException);
}
#pragma warning restore CA1031 // Do not catch general exception types
finally
{
if (metricFile != null)
{
metricFile.Close();
}
}
}
private static async Task <ErrorCode> RunAsync(string[] args, CancellationToken cancellationToken)
{
var projectsOrSolutions = new List <string>();
string outputFile = null;
bool quiet = false;
if (args.Length == 0)
{
return(usage());
}
var errorCode = parseArguments();
if (errorCode != ErrorCode.None)
{
return(errorCode);
}
cancellationToken.ThrowIfCancellationRequested();
MSBuildLocator.RegisterDefaults();
cancellationToken.ThrowIfCancellationRequested();
(ImmutableArray <(string, CodeAnalysisMetricData)> metricDatas, ErrorCode exitCode) = await GetMetricDatasAsync(projectsOrSolutions, quiet, cancellationToken).ConfigureAwait(false);
if (exitCode != ErrorCode.None)
{
return(exitCode);
}
cancellationToken.ThrowIfCancellationRequested();
errorCode = writeOutput();
if (!quiet && errorCode == ErrorCode.None)
{
Console.WriteLine("Completed Successfully.");
}
return(errorCode);
ErrorCode parseArguments()
{
// Parse arguments
for (int i = 0; i < args.Length; i++)
{
var arg = args[i];
if (!arg.StartsWith("/", StringComparison.Ordinal) && !arg.StartsWith("-", StringComparison.Ordinal))
{
return(usage());
}
arg = arg.Substring(1);
switch (arg.ToUpperInvariant())
{
case "Q":
case "QUIET":
quiet = true;
continue;
case "?":
case "HELP":
return(usage());
default:
var index = arg.IndexOf(':');
if (index == -1 || index == arg.Length - 1)
{
return(usage());
}
var key = arg.Substring(0, index).ToUpperInvariant();
var value = arg.Substring(index + 1);
switch (key)
{
case "P":
case "PROJECT":
if (!File.Exists(value))
{
return(fileNotExists(value));
}
if (!value.EndsWith(".csproj", StringComparison.OrdinalIgnoreCase) &&
!value.EndsWith(".vbproj", StringComparison.OrdinalIgnoreCase))
{
return(notASupportedProject(value));
}
projectsOrSolutions.Add(value);
break;
case "S":
case "SOLUTION":
if (!File.Exists(value))
{
return(fileNotExists(value));
}
if (!value.EndsWith(".sln", StringComparison.OrdinalIgnoreCase))
{
return(notASolution(value));
}
projectsOrSolutions.Add(value);
break;
case "O":
case "OUT":
if (value.Length == 0)
{
return(invalidOutputFile(value));
}
outputFile = value;
break;
default:
return(usage());
}
break;
}
}
if (projectsOrSolutions.Count == 0)
{
return(requiresProjectOrSolution());
}
return(ErrorCode.None);
}
ErrorCode usage()
{
Console.WriteLine(@"
Usage: Metrics.exe <arguments>
Help for command-line arguments:
/project:<project-file> [Short form: /p:<project-file>]
Project(s) to analyze.
/solution:<solution-file> [Short form: /s:<solution-file>]
Solution(s) to analyze.
/out:<file> [Short form: /o:<file>]
Metrics results XML output file.
/quiet [Short form: /q]
Silence all console output other than error reporting.
/help [Short form: /?]
Display this help message.");
return(ErrorCode.Usage);
}
ErrorCode fileNotExists(string path)
{
Console.WriteLine($"Error: File '{path}' does not exist.");
return(ErrorCode.FileNotExists);
}
ErrorCode requiresProjectOrSolution()
{
Console.WriteLine($"Error: No project or solution provided.");
return(ErrorCode.RequiresProjectOrSolution);
}
ErrorCode notASolution(string path)
{
Console.WriteLine($"Error: File '{path}' is not a solution file.");
return(ErrorCode.NotASolution);
}
ErrorCode notASupportedProject(string path)
{
Console.WriteLine($"Error: File '{path}' is not a C# or VB project file.");
return(ErrorCode.NotASupportedProject);
}
ErrorCode invalidOutputFile(string path)
{
Console.WriteLine($"Error: File '{path}' is not a valid output file.");
return(ErrorCode.InvalidOutputFile);
}
ErrorCode writeOutput()
{
XmlTextWriter metricFile = null;
try
{
// Create the writer
if (outputFile != null)
{
if (!quiet)
{
Console.WriteLine($"Writing output to '{outputFile}'...");
}
metricFile = new XmlTextWriter(outputFile, Encoding.UTF8);
}
else
{
metricFile = new XmlTextWriter(Console.OpenStandardOutput(), Console.OutputEncoding);
}
MetricsOutputWriter.WriteMetricFile(metricDatas, metricFile);
if (outputFile == null)
{
metricFile.WriteString(Environment.NewLine + Environment.NewLine);
}
return(ErrorCode.None);
}
#pragma warning disable CA1031 // Do not catch general exception types - gracefully catch exceptions and log them to the console and output file.
catch (Exception ex)
{
Console.WriteLine(ex.Message);
return(ErrorCode.WriteException);
}
#pragma warning restore CA1031 // Do not catch general exception types
finally
{
if (metricFile != null)
{
metricFile.Close();
}
}
}
}