Method WriteSearchVariables

Source/cmFindCommon.cxx:552–650

#ifndef CMAKE_BOOTSTRAP
void cmFindCommonDebugState::WriteSearchVariables(cmConfigureLog& log,
                                                  cmMakefile const& mf) const
{
  auto WriteString = [&log, &mf](std::string const& name) {
    if (cmValue value = mf.GetDefinition(name)) {
      log.WriteValue(name, *value);
    }
  };
  auto WriteCMakeList = [&log, &mf](std::string const& name) {
    if (cmValue value = mf.GetDefinition(name)) {
      cmList values{ *value };
      if (!values.empty()) {
        log.WriteValue(name, values);
      }
    }
  };
  auto WriteEnvList = [&log](std::string const& name) {
    if (auto value = cmSystemTools::GetEnvVar(name)) {
      auto values = cmSystemTools::SplitEnvPath(*value);
      if (!values.empty()) {
        log.WriteValue(cmStrCat("ENV{", name, '}'), values);
      }
    }
  };

  auto const* fc = this->FindCommand;
  log.BeginObject("search_context"_s);
  auto const& packageRootStack = mf.FindPackageRootPathStack;
  if (!packageRootStack.empty()) {
    bool havePaths =
      std::any_of(packageRootStack.begin(), packageRootStack.end(),
                  [](std::vector<std::string> const& entry) -> bool {
                    return !entry.empty();
                  });
    if (havePaths) {
      log.BeginObject("package_stack");
      log.BeginArray();
      for (auto const& pkgPaths : cmReverseRange(packageRootStack)) {
        if (!pkgPaths.empty()) {
          log.NextArrayElement();
          log.WriteValue("package_paths", pkgPaths);
        }
      }
      log.EndArray();
      log.EndObject();
    }
  }
  auto cmakePathVar = cmStrCat("CMAKE_", fc->CMakePathName, "_PATH");
  WriteCMakeList(cmakePathVar);
  WriteCMakeList("CMAKE_PREFIX_PATH");
  if (fc->CMakePathName == "PROGRAM"_s) {
    WriteCMakeList("CMAKE_APPBUNDLE_PATH");
  } else {
    WriteCMakeList("CMAKE_FRAMEWORK_PATH");
  }
  // Same as above, but ask the environment instead.
  WriteEnvList(cmakePathVar);
  WriteEnvList("CMAKE_PREFIX_PATH");