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Using exit code instead of seek for the term 'error' #562

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Merged
GregorBiswanger merged 3 commits into from
Jul 1, 2021
Merged

Using exit code instead of seek for the term 'error' #562

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ac77ccc
Using exit code
TSrgy Apr 29, 2021
e5d47e0
escape arguments for bash
TSrgy Apr 29, 2021
de2ce85
write command to console
TSrgy Apr 29, 2021
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58 changes: 7 additions & 51 deletions ElectronNET.CLI/ProcessHelper.cs
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Original file line number Diff line number Diff line change
@@ -1,14 +1,11 @@
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Text.RegularExpressions;

namespace ElectronNET.CLI
{
public class ProcessHelper
{
private readonly static Regex ErrorRegex = new Regex(@"\berror\b", RegexOptions.IgnoreCase | RegexOptions.Compiled);

public static int CmdExecute(string command, string workingDirectoryPath, bool output = true, bool waitForExit = true)
{
using (Process cmd = new Process())
Expand All @@ -17,12 +14,13 @@ public static int CmdExecute(string command, string workingDirectoryPath, bool o

if (isWindows)
{
cmd.StartInfo.FileName = "cmd.exe";
cmd.StartInfo = new ProcessStartInfo("cmd.exe", "/c " + command);
}
else
{
// works for OSX and Linux (at least on Ubuntu)
cmd.StartInfo.FileName = "bash";
var escapedArgs = command.Replace("\"", "\\\"");
cmd.StartInfo = new ProcessStartInfo("bash", $"-c \"{escapedArgs}\"");
}

cmd.StartInfo.RedirectStandardInput = true;
Expand All @@ -32,65 +30,23 @@ public static int CmdExecute(string command, string workingDirectoryPath, bool o
cmd.StartInfo.UseShellExecute = false;
cmd.StartInfo.WorkingDirectory = workingDirectoryPath;

int returnCode = 0;

if (output)
{
cmd.OutputDataReceived += (s, e) =>
{
// (sometimes error messages are only visbile here)
// poor mans solution, we just seek for the term 'error'

// we can't just use cmd.ExitCode, because
// we delegate it to cmd.exe, which runs fine
// but we can catch any error here and return
// 1 if something fails
if (e != null && string.IsNullOrWhiteSpace(e.Data) == false)
{
if (ErrorRegex.IsMatch(e.Data))
{
returnCode = 1;
}

Console.WriteLine(e.Data);
}

};
cmd.ErrorDataReceived += (s, e) =>
{
// poor mans solution, we just seek for the term 'error'

// we can't just use cmd.ExitCode, because
// we delegate it to cmd.exe, which runs fine
// but we can catch any error here and return
// 1 if something fails
if (e != null && string.IsNullOrWhiteSpace(e.Data) == false)
{
if (ErrorRegex.IsMatch(e.Data))
{
returnCode = 1;
}

Console.WriteLine(e.Data);
}

};
cmd.OutputDataReceived += (s, e) => Console.WriteLine(e.Data);
cmd.ErrorDataReceived += (s, e) => Console.WriteLine(e.Data);
}

Console.WriteLine(command);
cmd.Start();
cmd.BeginOutputReadLine();
cmd.BeginErrorReadLine();

cmd.StandardInput.WriteLine(command);
cmd.StandardInput.Flush();
cmd.StandardInput.Close();

if (waitForExit)
{
cmd.WaitForExit();
}

return returnCode;
return cmd.ExitCode;
}
}
}
Expand Down