Method execute

src/commands/CmdUnique.cpp:55–90

///////////////////////////////////////////////////////////////////////////

////////////////////////////////////////////////////////////////////////////////
int CmdUnique::execute(std::string& output) {
  // Apply filter.
  Filter filter;
  filter.disableSafety();
  std::vector<Task> filtered;
  filter.subset(filtered);

  // Find <attribute>.
  std::string attribute{};

  // Just the first arg.
  auto words = Context::getContext().cli2.getWords();
  if (words.size() == 0) throw std::string("An attribute must be specified.  See 'task _columns'.");
  attribute = words[0];

  std::string canonical;
  if (!Context::getContext().cli2.canonicalize(canonical, "attribute", attribute))
    throw std::string("You must specify an attribute or UDA.");

  // Find the unique set of matching tasks.
  std::set<std::string> values;
  for (auto& task : filtered) {
    if (task.has(canonical)) {
      values.insert(task.get(canonical));
    } else if (canonical == "id" && task.getStatus() != Task::deleted &&
               task.getStatus() != Task::completed) {
      values.insert(format(task.id));
    }
  }

  // Generate list of values.
  for (auto& value : values) output += value + '\n';

  Context::getContext().headers.clear();
  return 0;
}

///////////////////////////////////////////////////////////////////////////////