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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);
72 gmx::CommandLineModuleManager manager(programInfo);
73 // <register all necessary modules>
74 return manager.run(argc, argv);
76 catch (const std::exception &ex)
78 gmx::printFatalErrorMessage(stderr, ex);
85 * \ingroup module_commandline
87 class CommandLineModuleManager
91 * Initializes a command-line module manager.
93 * \param[in] programInfo Program information for the running binary.
94 * \throws std::bad_alloc if out of memory.
96 * The binary name is used to detect when the binary is run through a
97 * symlink, and automatically invoke a matching module in such a case.
99 explicit CommandLineModuleManager(const ProgramInfo &programInfo);
100 ~CommandLineModuleManager();
103 * Sets the module manager to quiet mode: don't print anything.
105 * \param[in] bQuiet Whether the module manager should remain silent.
107 * Normally, the module manager prints out some information to stderr
108 * before it starts the module and after it finishes. This removes
109 * that output, which is useful in particular for unit tests so that
110 * they don't spam stderr.
112 void setQuiet(bool bQuiet);
115 * Adds a given module to this manager.
117 * \param module Module to add.
118 * \throws std::bad_alloc if out of memory.
120 * The manager takes ownership of the object.
122 * This method is public mostly for testing purposes; for typical uses,
123 * registerModule() is a more convenient way of adding modules.
125 * \see registerModule()
127 void addModule(CommandLineModulePointer module);
129 * Registers a module of a certain type to this manager.
131 * \tparam Module Type of module to register.
132 * \throws std::bad_alloc if out of memory.
134 * \p Module must be default-constructible and implement
135 * CommandLineModuleInterface.
137 * This method is provided as a convenient alternative to addModule()
138 * for cases where each module is implemented by a different type
139 * (which should be the case for typical situations outside unit
142 template <class Module>
143 void registerModule()
145 addModule(CommandLineModulePointer(new Module));
149 * Make given help topic available through the manager's help module.
151 * \param[in] topic Help topic to add.
152 * \throws std::bad_alloc if out of memory.
154 * The manager takes ownership of the help topic.
156 void addHelpTopic(HelpTopicPointer topic);
159 * Runs a module based on given command line.
161 * \param[in] argc Number of elements in \p argv.
162 * \param[in] argv Command-line arguments.
163 * \throws unspecified Throws any exception that the selected module
165 * \returns Exit code for the program.
166 * \retval 0 on successful termination.
167 * \retval 2 if no module is specified, or if the module is not found.
169 * Runs the module whose name matches \p argv[1].
171 int run(int argc, char *argv[]);
176 PrivateImplPointer<Impl> impl_;