#include <cmsys/Process.h>
#include "cmStandardIncludes.h"
#include "cmSystemTools.h"

// This is a wrapper program for xcodebuild
// it calls xcodebuild, and does two things
// it removes much of the output, all the setevn
// stuff.  Also, it checks for the text file busy
// error, and re-runs xcodebuild until that error does
// not show up.

int RunXCode(std::vector<const char*>& argv, bool& hitbug)
{
  hitbug = false;
  cmsysProcess* cp = cmsysProcess_New();
  cmsysProcess_SetCommand(cp, &*argv.begin());
  cmsysProcess_SetTimeout(cp, 0);
  cmsysProcess_Execute(cp);
  std::vector<char> out;
  std::vector<char> err;
  std::string line;
  int pipe = cmSystemTools::WaitForLine(cp, line, 100.0, out, err);
  while(pipe != cmsysProcess_Pipe_None)
    {
    if(line.find("/bin/sh: bad interpreter: Text file busy") 
       != line.npos)
      {
      hitbug = true;
      std::cerr << "Hit xcodebuild bug : " << line << "\n";
      }
    // if the bug is hit, no more output should be generated
    // because it may contain bogus errors
    // also remove all output with setenv in it to tone down
    // the verbosity of xcodebuild
    if(!hitbug && (line.find("setenv") == line.npos))
      {
      if(pipe == cmsysProcess_Pipe_STDERR)
        {
        std::cerr << line << "\n";
        }
      else if(pipe == cmsysProcess_Pipe_STDOUT)
        {
        std::cout << line << "\n";
        }
      }
    pipe = cmSystemTools::WaitForLine(cp, line, 100, out, err);
    }
  cmsysProcess_WaitForExit(cp, 0);
  if(cmsysProcess_GetState(cp) == cmsysProcess_State_Exited)
    {
    return cmsysProcess_GetExitValue(cp);
    }
  if(cmsysProcess_GetState(cp) == cmsysProcess_State_Error)
    {
    return -1;
    }
  return -1;
}

int main(int ac, char*av[])
{ 
  std::vector<const char*> argv;
  argv.push_back("xcodebuild");
  for(int i =1; i < ac; i++)
    {
    argv.push_back(av[i]);
    }
  argv.push_back(0);
  bool hitbug = true;
  int ret = 0;
  while(hitbug)
    {
    ret = RunXCode(argv, hitbug);
    }
  if(ret < 0)
    {
    return 255;
    }
  return ret;
}