Method ExecuteLinkScript

Source/cmcmd.cxx:2611–2690

}

int cmcmd::ExecuteLinkScript(std::vector<std::string> const& args)
{
  // The arguments are
  //   args[0] == <cmake-executable>
  //   args[1] == cmake_link_script
  //   args[2] == <link-script-name>
  //   args[3] == --verbose=?
  bool verbose = false;
  if (args.size() >= 4) {
    if (cmHasLiteralPrefix(args[3], "--verbose=")) {
      if (!cmIsOff(args[3].substr(10))) {
        verbose = true;
      }
    }
  }

  // Read command lines from the script.
  cmsys::ifstream fin(args[2].c_str());
  if (!fin) {
    std::cerr << "Error opening link script \"" << args[2] << "\"\n";
    return 1;
  }

  // Run one command at a time.
  std::string command;
  int result = 0;
  while (result == 0 && cmSystemTools::GetLineFromStream(fin, command)) {
    // Skip empty command lines.
    if (command.find_first_not_of(" \t") == std::string::npos) {
      continue;
    }

    // Allocate a process instance.
    cmUVProcessChainBuilder builder;

    // Children should share stdout and stderr with this process.
    builder.SetExternalStream(cmUVProcessChainBuilder::Stream_OUTPUT, stdout)
      .SetExternalStream(cmUVProcessChainBuilder::Stream_ERROR, stderr);

    // Setup this command line.
    std::vector<std::string> args2;
#ifdef _WIN32
    cmSystemTools::ParseWindowsCommandLine(command.c_str(), args2);
#else
    cmSystemTools::ParseUnixCommandLine(command.c_str(), args2);
#endif
    builder.AddCommand(args2);

    // Report the command if verbose output is enabled.
    if (verbose) {
      std::cout << command << '\n';
    }

    // Run the command and wait for it to exit.
    auto chain = builder.Start();
    chain.Wait();

    // Report failure if any.