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// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
namespace WixToolset.Tools
{
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Xml.Linq;
using WixToolset.Data;
using WixToolset.Extensibility;
/// <summary>
/// The main entry point for candle.
/// </summary>
public sealed class Candle
{
private CandleCommandLine commandLine;
private IEnumerable<IPreprocessorExtension> preprocessorExtensions;
private IEnumerable<ICompilerExtension> compilerExtensions;
private IEnumerable<IExtensionData> extensionData;
/// <summary>
/// The main entry point for candle.
/// </summary>
/// <param name="args">Commandline arguments for the application.</param>
/// <returns>Returns the application error code.</returns>
[MTAThread]
public static int Main(string[] args)
{
AppCommon.PrepareConsoleForLocalization();
Messaging.Instance.InitializeAppName("CNDL", "candle.exe").Display += AppCommon.ConsoleDisplayMessage;
Candle candle = new Candle();
return candle.Execute(args);
}
private int Execute(string[] args)
{
try
{
string[] unparsed = this.ParseCommandLineAndLoadExtensions(args);
if (!Messaging.Instance.EncounteredError)
{
if (this.commandLine.ShowLogo)
{
AppCommon.DisplayToolHeader();
}
if (this.commandLine.ShowHelp)
{
Console.WriteLine(CandleStrings.HelpMessage);
AppCommon.DisplayToolFooter();
}
else
{
foreach (string arg in unparsed)
{
Messaging.Instance.OnMessage(WixWarnings.UnsupportedCommandLineArgument(arg));
}
this.Run();
}
}
}
catch (WixException we)
{
Messaging.Instance.OnMessage(we.Error);
}
catch (Exception e)
{
Messaging.Instance.OnMessage(WixErrors.UnexpectedException(e.Message, e.GetType().ToString(), e.StackTrace));
if (e is NullReferenceException || e is SEHException)
{
throw;
}
}
return Messaging.Instance.LastErrorNumber;
}
private string[] ParseCommandLineAndLoadExtensions(string[] args)
{
this.commandLine = new CandleCommandLine();
string[] unprocessed = commandLine.Parse(args);
if (Messaging.Instance.EncounteredError)
{
return unprocessed;
}
// Load extensions.
ExtensionManager extensionManager = new ExtensionManager();
foreach (string extension in this.commandLine.Extensions)
{
extensionManager.Load(extension);
}
// Preprocessor extension command line processing.
this.preprocessorExtensions = extensionManager.Create<IPreprocessorExtension>();
foreach (IExtensionCommandLine pce in this.preprocessorExtensions.Where(e => e is IExtensionCommandLine).Cast<IExtensionCommandLine>())
{
pce.MessageHandler = Messaging.Instance;
unprocessed = pce.ParseCommandLine(unprocessed);
}
// Compiler extension command line processing.
this.compilerExtensions = extensionManager.Create<ICompilerExtension>();
foreach (IExtensionCommandLine cce in this.compilerExtensions.Where(e => e is IExtensionCommandLine).Cast<IExtensionCommandLine>())
{
cce.MessageHandler = Messaging.Instance;
unprocessed = cce.ParseCommandLine(unprocessed);
}
// Extension data command line processing.
this.extensionData = extensionManager.Create<IExtensionData>();
foreach (IExtensionCommandLine dce in this.extensionData.Where(e => e is IExtensionCommandLine).Cast<IExtensionCommandLine>())
{
dce.MessageHandler = Messaging.Instance;
unprocessed = dce.ParseCommandLine(unprocessed);
}
return commandLine.ParsePostExtensions(unprocessed);
}
private void Run()
{
// Create the preprocessor and compiler
Preprocessor preprocessor = new Preprocessor();
preprocessor.CurrentPlatform = this.commandLine.Platform;
foreach (string includePath in this.commandLine.IncludeSearchPaths)
{
preprocessor.IncludeSearchPaths.Add(includePath);
}
foreach (IPreprocessorExtension pe in this.preprocessorExtensions)
{
preprocessor.AddExtension(pe);
}
Compiler compiler = new Compiler();
compiler.ShowPedanticMessages = this.commandLine.ShowPedanticMessages;
compiler.CurrentPlatform = this.commandLine.Platform;
foreach (IExtensionData ed in this.extensionData)
{
compiler.AddExtensionData(ed);
}
foreach (ICompilerExtension ce in this.compilerExtensions)
{
compiler.AddExtension(ce);
}
// Preprocess then compile each source file.
foreach (CompileFile file in this.commandLine.Files)
{
// print friendly message saying what file is being compiled
Console.WriteLine(file.SourcePath);
// preprocess the source
XDocument sourceDocument;
try
{
if (!String.IsNullOrEmpty(this.commandLine.PreprocessFile))
{
preprocessor.PreprocessOut = this.commandLine.PreprocessFile.Equals("con:", StringComparison.OrdinalIgnoreCase) ? Console.Out : new StreamWriter(this.commandLine.PreprocessFile);
}
sourceDocument = preprocessor.Process(file.SourcePath, this.commandLine.PreprocessorVariables);
}
finally
{
if (null != preprocessor.PreprocessOut && Console.Out != preprocessor.PreprocessOut)
{
preprocessor.PreprocessOut.Close();
}
}
// If we're not actually going to compile anything, move on to the next file.
if (null == sourceDocument || !String.IsNullOrEmpty(this.commandLine.PreprocessFile))
{
continue;
}
// and now we do what we came here to do...
Intermediate intermediate = compiler.Compile(sourceDocument);
// save the intermediate to disk if no errors were found for this source file
if (null != intermediate)
{
intermediate.Save(file.OutputPath);
}
}
}
}
}
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