private string RunCommandsAsBatch(List <CommandExecutionParamModel> commandLineModels, int processTimeoutMs)
{
var fileModel = GetExecuteBatchFileModel();
var output = string.Empty;
try
{
//To create a batch file
using (var sw = new StreamWriter(fileModel.FileName))
{
if (fileModel.IsUnixOS)
{
sw.WriteLine("#!/bin/bash");
}
foreach (var model in commandLineModels)
{
sw.WriteLine($"{model.Command} {model.Arguments}");
}
}
//Reset the command with batch file name.
var newCommand = new CommandExecutionParamModel();
newCommand.Command = fileModel.FileName;
//To change the file permission on unix box
if (fileModel.IsUnixOS)
{
var command = "chmod 755 " + fileModel.FileName;
ExecuteUnixCommand(command);
}
output = RunSingleProcess(newCommand, processTimeoutMs);
}
catch (Exception ex)
{
throw;
}
finally
{
//Console.WriteLine("filename" + fileModel.FileName);
File.Delete(fileModel.FileName);
}
return(output);
}
private List <CommandExecutionParamModel> ParseCommands(string[] commands)
{
var commandLineModels = new List <CommandExecutionParamModel>();
for (int i = 0; i < commands.Length; i++)
{
var model = new CommandExecutionParamModel();
if (commands[i].IndexOf(" ") > 0)
{
var index = commands[i].IndexOf(' ');
model.Command = commands[i].Substring(0, index);
model.Arguments = commands[i].Substring(index);
}
else
{
model.Command = commands[i];
}
commandLineModels.Add(model);
}
return(commandLineModels);
}
private string RunSingleProcess(CommandExecutionParamModel model, int processTimeoutMs)
{
var process = new System.Diagnostics.Process();
var output = string.Empty;
try
{
var outputBuilder = new StringBuilder();
ProcessStartInfo processStartInfo = new ProcessStartInfo
{
CreateNoWindow = true,
RedirectStandardOutput = true,
RedirectStandardInput = true,
RedirectStandardError = true,
UseShellExecute = false,
ErrorDialog = false,
FileName = model.Command
};
process.StartInfo = processStartInfo;
// enable raising events because Process does not raise events by default
process.EnableRaisingEvents = true;
// attach the event handler for OutputDataReceived before starting the process
process.OutputDataReceived += (sender, eventArgs) => outputBuilder.AppendLine(eventArgs.Data);
process.ErrorDataReceived += (sender, eventArgs) => outputBuilder.AppendLine(eventArgs.Data);
// start the process
// then begin asynchronously reading the output
// then wait for the process to exit
// then cancel asynchronously reading the output
process.Start();
process.BeginOutputReadLine();
process.BeginErrorReadLine();
if (processTimeoutMs > 0)
{
var processExited = process.WaitForExit(processTimeoutMs);
if (!processExited)
{
process.Kill();
throw new TimeoutException($"Process did not finish in {processTimeoutMs} ms.");
}
}
else
{
process.WaitForExit();
}
process.CancelOutputRead();
output = outputBuilder.ToString();
return(output);
}
catch (Exception e)
{
// Console.WriteLine(e.Message);
throw;
}
finally
{
process.Close();
}
}