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37 * Declares gmx::CommandLineModuleManager.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
41 * \ingroup module_commandline
43 #ifndef GMX_COMMANDLINE_CMDLINEMODULEMANAGER_H
44 #define GMX_COMMANDLINE_CMDLINEMODULEMANAGER_H
46 #include "../onlinehelp/helptopicinterface.h"
47 #include "../utility/common.h"
48 #include "../utility/uniqueptr.h"
53 class CommandLineModuleInterface;
56 //! Smart pointer type for managing a CommandLineModuleInterface.
57 typedef gmx_unique_ptr<CommandLineModuleInterface>::type
58 CommandLineModulePointer;
61 * Implements a wrapper command-line interface for multiple modules.
66 main(int argc, char *argv[])
68 const gmx::ProgramInfo &programInfo =
69 gmx::ProgramInfo::init("gmx", argc, argv);
70 CopyRight(stderr, argv[0]);
73 gmx::CommandLineModuleManager manager(programInfo);
74 // <register all necessary modules>
75 return manager.run(argc, argv);
77 catch (const std::exception &ex)
79 gmx::printFatalErrorMessage(stderr, ex);
86 * \ingroup module_commandline
88 class CommandLineModuleManager
92 * Initializes a command-line module manager.
94 * \param[in] programInfo Program information for the running binary.
95 * \throws std::bad_alloc if out of memory.
97 * The binary name is used to detect when the binary is run through a
98 * symlink, and automatically invoke a matching module in such a case.
100 explicit CommandLineModuleManager(const ProgramInfo &programInfo);
101 ~CommandLineModuleManager();
104 * Adds a given module to this manager.
106 * \param module Module to add.
107 * \throws std::bad_alloc if out of memory.
109 * The manager takes ownership of the object.
111 * This method is public mostly for testing purposes; for typical uses,
112 * registerModule() is a more convenient way of adding modules.
114 * \see registerModule()
116 void addModule(CommandLineModulePointer module);
118 * Registers a module of a certain type to this manager.
120 * \tparam Module Type of module to register.
121 * \throws std::bad_alloc if out of memory.
123 * \p Module must be default-constructible and implement
124 * CommandLineModuleInterface.
126 * This method is provided as a convenient alternative to addModule()
127 * for cases where each module is implemented by a different type
128 * (which should be the case for typical situations outside unit
131 template <class Module>
132 void registerModule()
134 addModule(CommandLineModulePointer(new Module));
138 * Make given help topic available through the manager's help module.
140 * \param[in] topic Help topic to add.
141 * \throws std::bad_alloc if out of memory.
143 * The manager takes ownership of the help topic.
145 void addHelpTopic(HelpTopicPointer topic);
148 * Runs a module based on given command line.
150 * \param[in] argc Number of elements in \p argv.
151 * \param[in] argv Command-line arguments.
152 * \throws unspecified Throws any exception that the selected module
154 * \returns Exit code for the program.
155 * \retval 0 on successful termination.
156 * \retval 2 if no module is specified, or if the module is not found.
158 * Runs the module whose name matches \p argv[1].
160 int run(int argc, char *argv[]);
165 PrivateImplPointer<Impl> impl_;