Method SearchPrefix

Source/cmFindPackageCommand.cxx:3284–3450

}

bool cmFindPackageCommand::SearchPrefix(std::string const& prefix)
{
  assert(!prefix.empty() && prefix.back() == '/');

  // Skip this if the prefix does not exist.
  if (!cmSystemTools::FileIsDirectory(prefix)) {
    return false;
  }

  // Skip this if it's in ignored paths.
  std::string prefixWithoutSlash = prefix;
  if (prefixWithoutSlash != "/" && prefixWithoutSlash.back() == '/') {
    prefixWithoutSlash.erase(prefixWithoutSlash.length() - 1);
  }
  if (this->IgnoredPaths.count(prefixWithoutSlash) ||
      this->IgnoredPrefixPaths.count(prefixWithoutSlash)) {
    return false;
  }

  auto searchFn = [this](std::string const& fullPath,
                         PackageDescriptionType type) -> bool {
    return this->SearchDirectory(fullPath, type);
  };

  auto iCpsGen = cmCaseInsensitiveDirectoryListGenerator{ "cps"_s };
  auto iCMakeGen = cmCaseInsensitiveDirectoryListGenerator{ "cmake"_s };
  auto anyDirGen =
    cmAnyDirectoryListGenerator{ this->SortOrder, this->SortDirection };
  auto cpsPkgDirGen =
    cmProjectDirectoryListGenerator{ &this->Names, this->SortOrder,
                                     this->SortDirection, true };
  auto cmakePkgDirGen =
    cmProjectDirectoryListGenerator{ &this->Names, this->SortOrder,
                                     this->SortDirection, false };

  // PREFIX/(Foo|foo|FOO)/(cps|CPS)/
  if (TryGeneratedPaths(searchFn, pdt::Cps, prefix, cpsPkgDirGen, iCpsGen)) {
    return true;
  }

  // PREFIX/(Foo|foo|FOO)/*/(cps|CPS)/
  if (TryGeneratedPaths(searchFn, pdt::Cps, prefix, cpsPkgDirGen, iCpsGen,
                        anyDirGen)) {
    return true;
  }

  // PREFIX/(cps|CPS)/(Foo|foo|FOO)/
  if (TryGeneratedPaths(searchFn, pdt::Cps, prefix, iCpsGen, cpsPkgDirGen)) {
    return true;
  }

  // PREFIX/(cps|CPS)/(Foo|foo|FOO)/*/
  if (TryGeneratedPaths(searchFn, pdt::Cps, prefix, iCpsGen, cpsPkgDirGen,
                        anyDirGen)) {
    return true;
  }

  // PREFIX/(cps|CPS)/ (useful on windows or in build trees)