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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.Core.Native
{
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Runtime.InteropServices;
internal class WixNativeExe
{
private const string WixNativeExeFileName = "wixnative.exe";
private static string PathToWixNativeExe;
private readonly string commandLine;
private readonly List<string> stdinLines = new List<string>();
public WixNativeExe(params object[] args)
{
this.commandLine = String.Join(" ", QuoteArgumentsAsNecesary(args));
}
public void AddStdinLine(string line)
{
this.stdinLines.Add(line);
}
public void AddStdinLines(IEnumerable<string> lines)
{
this.stdinLines.AddRange(lines);
}
public IEnumerable<string> Run()
{
EnsurePathToWixNativeExeSet();
var wixNativeInfo = new ProcessStartInfo(PathToWixNativeExe, this.commandLine)
{
RedirectStandardInput = true,
RedirectStandardOutput = true,
CreateNoWindow = true,
ErrorDialog = false,
UseShellExecute = false
};
var stdoutLines = new List<string>();
using (var process = Process.Start(wixNativeInfo))
{
process.OutputDataReceived += (s, a) => stdoutLines.Add(a.Data);
process.BeginOutputReadLine();
if (this.stdinLines.Count > 0)
{
foreach (var line in this.stdinLines)
{
process.StandardInput.WriteLine(line);
}
// Trailing blank line indicates stdin complete.
process.StandardInput.WriteLine();
}
// If the process successfully exits documentation says we need to wait again
// without a timeout to ensure that all of the redirected output is captured.
//
process.WaitForExit();
if (process.ExitCode != 0)
{
throw new Win32Exception(process.ExitCode);
}
}
return stdoutLines;
}
private static void EnsurePathToWixNativeExeSet()
{
if (String.IsNullOrEmpty(PathToWixNativeExe))
{
var path = Path.Combine(Path.GetDirectoryName(new Uri(Assembly.GetExecutingAssembly().CodeBase).LocalPath), WixNativeExeFileName);
var possiblePaths = path;
var found = File.Exists(path);
if (!found && AppContext.GetData("NATIVE_DLL_SEARCH_DIRECTORIES") is string searchDirectoriesString)
{
possiblePaths = searchDirectoriesString;
var separatorChar = Path.PathSeparator;
var searchDirectories = searchDirectoriesString?.Split(separatorChar);
foreach (var directoryPath in searchDirectories)
{
var possiblePath = Path.Combine(directoryPath, WixNativeExeFileName);
if (File.Exists(possiblePath))
{
path = possiblePath;
found = true;
break;
}
}
}
if (!found)
{
throw new PlatformNotSupportedException(
$"Could not find platform specific '{WixNativeExeFileName}'",
new FileNotFoundException($"Could not find internal piece of WiX Toolset from: {possiblePaths}", WixNativeExeFileName));
}
PathToWixNativeExe = path;
}
}
private static IEnumerable<string> QuoteArgumentsAsNecesary(object[] args)
{
foreach (var arg in args)
{
if (arg is string str)
{
if (String.IsNullOrEmpty(str))
{
}
else if (str.Contains(" ") && !str.StartsWith("\""))
{
yield return $"\"{str}\"";
}
else
{
yield return str;
}
}
else if (arg is int i)
{
yield return i.ToString();
}
else
{
throw new ArgumentException(nameof(args));
}
}
}
}
}
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