mirror of https://gitee.com/bigwinds/arangodb
113 lines
3.1 KiB
C++
113 lines
3.1 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2016 ArangoDB GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGODB_PROGRAM_OPTIONS_SECTION_H
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#define ARANGODB_PROGRAM_OPTIONS_SECTION_H 1
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#include "Basics/Common.h"
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#include "Basics/shell-colors.h"
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#include "ProgramOptions/Option.h"
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namespace arangodb {
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namespace options {
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// a single program options section
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struct Section {
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// sections are default copy-constructible and default movable
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Section(std::string const& name, std::string const& description,
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std::string const& alias, bool hidden, bool obsolete)
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: name(name),
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description(description),
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alias(alias),
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hidden(hidden),
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obsolete(obsolete) {}
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// adds a program option to the section
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void addOption(Option const& option) { options.emplace(option.name, option); }
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// get display name for the section
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std::string displayName() const { return alias.empty() ? name : alias; }
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// whether or not the section has (displayable) options
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bool hasOptions() const {
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if (!hidden) {
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for (auto const& it : options) {
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if (!it.second.hidden) {
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return true;
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}
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}
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}
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return false;
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}
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// print help for a section
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// the special search string "." will show help for all sections, even if hidden
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void printHelp(std::string const& search, size_t tw, size_t ow, bool colors) const {
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if (search != "." && (hidden || !hasOptions())) {
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return;
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}
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if (colors) {
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std::cout << "Section '" << TRI_SHELL_COLOR_BRIGHT << displayName() << TRI_SHELL_COLOR_RESET << "' (" << description << ")"
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<< std::endl;
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} else {
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std::cout << "Section '" << displayName() << "' (" << description << ")"
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<< std::endl;
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}
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// propagate print command to options
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for (auto const& it : options) {
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it.second.printHelp(search, tw, ow, colors);
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}
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std::cout << std::endl;
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}
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// determine display width for a section
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size_t optionsWidth() const {
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size_t width = 0;
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if (!hidden) {
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for (auto const& it : options) {
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width = (std::max)(width, it.second.optionsWidth());
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}
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}
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return width;
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}
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std::string name;
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std::string description;
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std::string alias;
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bool hidden;
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bool obsolete;
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// program options of the section
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std::map<std::string, Option> options;
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};
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}
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}
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#endif
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