/// <summary>
/// Initializes a new instance of the ProcessInvoker class.
/// </summary>
/// <param name="workingDirectory">The working directory the process is started in.</param>
/// <param name="executable">The executable to run.</param>
/// <param name="args">The command line arguments to provide to the executable.</param>
/// <param name="failureBase">Not sure what this is -- some debugging/diagnostic thing.</param>
/// <param name="captureStdout">Where to (optionally) capture standard out.</param>
/// <param name="dbgText">Debugging text for something or another.</param>
/// <param name="allowAbsoluteExe">Whether to allow an absolute (rather than relative) file path to the executable.</param>
/// <param name="allowAbsoluteArgs">Whether to allow absolute (rather than relative) file paths as arguments.</param>
/// <param name="workingDirOverride">The working directory to use.</param>
public ProcessInvoker(
WorkingDirectory workingDirectory,
string executable,
string[] args,
BuildObject failureBase,
BuildObject captureStdout = null,
string dbgText = null,
bool allowAbsoluteExe = false,
bool allowAbsoluteArgs = false,
string workingDirOverride = null)
{
// Catch bad verb authors before they hurt themselves.
Util.Assert(allowAbsoluteExe || !executable.Contains(":")); // Hey, this looks like an absolute path! Use .getRelativePath(); it makes your output more stable.
foreach (string arg in args)
{
// Pardon my distasteful heuristic to avoid flagging /flag:value args.
Util.Assert(allowAbsoluteArgs || arg.Length < 2 || arg[1] != ':'); // Hey, this looks like an absolute path! Use .getRelativePath() to tolerate crossing machine boundaries.
}
this.workingDirectory = workingDirectory;
this.stdout = new StringBuilder();
this.stderr = new StringBuilder();
using (Job job = new Job())
{
using (Process proc = new Process())
{
if (allowAbsoluteExe)
{
proc.StartInfo.FileName = executable;
}
else
{
// TODO: *All* async verbs need to list their executable (and all the libs it depends upon) as dependencies.
proc.StartInfo.FileName = workingDirectory.PathTo(executable);
}
// TODO Is there a better way to escape the args to avoid problems with spaces?
proc.StartInfo.Arguments = string.Join(" ", args);
proc.StartInfo.WorkingDirectory = workingDirOverride == null ? workingDirectory.Root : workingDirOverride;
proc.StartInfo.RedirectStandardOutput = true;
// REVIEW: Maybe we should always capture stdout in a StringBuilder and just write it out to a file afterwards if requested?
if (captureStdout != null)
{
this.tmpStdout = new BuildObject(captureStdout.getRelativePath() + ".tmp");
this.stdoutFile = new StreamWriter(workingDirectory.PathTo(this.tmpStdout));
proc.OutputDataReceived += new DataReceivedEventHandler(this.StdoutRedirectHandler);
}
else
{
// Collect stdout here for diagnostics.
proc.OutputDataReceived += new DataReceivedEventHandler(this.StdoutHandler);
}
proc.StartInfo.RedirectStandardError = true;
proc.ErrorDataReceived += new DataReceivedEventHandler(this.StderrHandler);
proc.StartInfo.UseShellExecute = false;
string commandLine = proc.StartInfo.FileName + " " + proc.StartInfo.Arguments;
if (failureBase != null && AlwaysEmitDiagnostics)
{
// In diagnostic mode, we emit the command line twice, once ahead in case Boogie decides
// to run away and never come back.
BuildObject failureBatObj = failureBase.makeOutputObject(".bat");
workingDirectory.CreateDirectoryFor(failureBatObj);
File.WriteAllText(workingDirectory.PathTo(failureBatObj), commandLine);
}
proc.Start();
job.AddProcess(proc);
proc.BeginOutputReadLine();
proc.BeginErrorReadLine();
proc.WaitForExit();
this.cpuTime = job.GetCpuTime().TotalSeconds;
this.exitCode = proc.ExitCode;
if (this.stdoutFile != null)
{
this.stdoutFile.Close();
}
if (failureBase != null && AlwaysEmitDiagnostics)
{
workingDirectory.CreateDirectoryFor(failureBase);
File.WriteAllText(workingDirectory.PathTo(failureBase.makeOutputObject(".bat")), commandLine);
File.WriteAllText(workingDirectory.PathTo(failureBase.makeOutputObject(".txt")), dbgText);
File.WriteAllText(workingDirectory.PathTo(failureBase.makeOutputObject(".stdout")), this.GetStdoutString());
File.WriteAllText(workingDirectory.PathTo(failureBase.makeOutputObject(".stderr")), this.GetStderr());
}
}
}
// REVIEW: Add Delete, Exists and Move methods to WorkingDirectory class?
if (this.tmpStdout != null && File.Exists(workingDirectory.PathTo(this.tmpStdout)))
{
// REVIEW: Nothing should be here. Bother with the delete?
File.Delete(workingDirectory.PathTo(captureStdout));
File.Move(workingDirectory.PathTo(this.tmpStdout), workingDirectory.PathTo(captureStdout));
this.tmpStdout = null;
}
}
