1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
// 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 WixBuildTools.TestSupport
{
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Text;
public abstract class ExternalExecutable
{
private readonly string exePath;
protected ExternalExecutable(string exePath)
{
this.exePath = exePath;
}
protected ExternalExecutableResult Run(string args, bool mergeErrorIntoOutput = false, string workingDirectory = null)
{
var startInfo = new ProcessStartInfo(this.exePath, args)
{
CreateNoWindow = true,
RedirectStandardError = true,
RedirectStandardOutput = true,
UseShellExecute = false,
WorkingDirectory = workingDirectory ?? Path.GetDirectoryName(this.exePath),
};
using (var process = Process.Start(startInfo))
{
// This implementation of merging the streams does not guarantee that lines are retrieved in the same order that they were written.
// If the process is simultaneously writing to both streams, this is impossible to do anyway.
var standardOutput = new ConcurrentQueue<string>();
var standardError = mergeErrorIntoOutput ? standardOutput : new ConcurrentQueue<string>();
process.ErrorDataReceived += (s, e) => { if (e.Data != null) { standardError.Enqueue(e.Data); } };
process.OutputDataReceived += (s, e) => { if (e.Data != null) { standardOutput.Enqueue(e.Data); } };
process.BeginErrorReadLine();
process.BeginOutputReadLine();
process.WaitForExit();
return new ExternalExecutableResult
{
ExitCode = process.ExitCode,
StandardError = mergeErrorIntoOutput ? null : standardError.ToArray(),
StandardOutput = standardOutput.ToArray(),
StartInfo = startInfo,
};
}
}
// This is internal because it assumes backslashes aren't used as escape characters and there aren't any double quotes.
internal static string CombineArguments(IEnumerable<string> arguments)
{
if (arguments == null)
{
return null;
}
var sb = new StringBuilder();
foreach (var arg in arguments)
{
if (sb.Length > 0)
{
sb.Append(' ');
}
if (arg.IndexOf(' ') > -1)
{
sb.Append("\"");
sb.Append(arg);
sb.Append("\"");
}
else
{
sb.Append(arg);
}
}
return sb.ToString();
}
}
}
|
