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37 * Implements gmx::CommandLineModuleManager.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
40 * \ingroup module_commandline
42 #include "cmdlinemodulemanager.h"
51 #include <boost/scoped_ptr.hpp>
53 #include "gromacs/legacyheaders/copyrite.h"
54 #include "gromacs/legacyheaders/network.h"
55 #include "gromacs/legacyheaders/smalloc.h"
57 #include "gromacs/commandline/cmdlinehelpcontext.h"
58 #include "gromacs/commandline/cmdlinemodule.h"
59 #include "gromacs/commandline/cmdlineparser.h"
60 #include "gromacs/fileio/futil.h"
61 #include "gromacs/onlinehelp/helpformat.h"
62 #include "gromacs/onlinehelp/helpmanager.h"
63 #include "gromacs/onlinehelp/helptopic.h"
64 #include "gromacs/onlinehelp/helpwritercontext.h"
65 #include "gromacs/options/basicoptions.h"
66 #include "gromacs/options/options.h"
67 #include "gromacs/utility/exceptions.h"
68 #include "gromacs/utility/file.h"
69 #include "gromacs/utility/gmxassert.h"
70 #include "gromacs/utility/init.h"
71 #include "gromacs/utility/programinfo.h"
72 #include "gromacs/utility/stringutil.h"
73 #include "gromacs/utility/uniqueptr.h"
78 //! Container type for mapping module names to module objects.
79 typedef std::map<std::string, CommandLineModulePointer> CommandLineModuleMap;
80 //! Smart pointer type for managing a CommandLineModuleGroup.
81 typedef gmx_unique_ptr<internal::CommandLineModuleGroupData>::type
82 CommandLineModuleGroupDataPointer;
83 //! Container type for keeping a list of module groups.
84 typedef std::vector<CommandLineModuleGroupDataPointer>
85 CommandLineModuleGroupList;
87 class CommandLineHelpModule;
94 * Internal data for a CommandLineModuleManager module group.
96 * This class contains the state of a module group. CommandLineModuleGroup
97 * provides the public interface to construct/alter the state, and
98 * CommandLineModuleManager and its associated classes use it for help output.
100 * \ingroup module_commandline
102 class CommandLineModuleGroupData
106 * Shorthand for a list of modules contained in the group.
108 * The first element in the contained pair contains the tag
109 * (gmx-something) of the module, and the second element contains the
110 * description. The second element is never NULL.
112 typedef std::vector<std::pair<std::string, const char *> > ModuleList;
115 * Constructs an empty module group.
117 * \param[in] modules List of all modules
118 * (used for checking and default descriptions).
119 * \param[in] title Title of the group.
123 CommandLineModuleGroupData(const CommandLineModuleMap &modules,
125 : allModules_(modules), title_(title)
129 //! Returns the title for the group.
130 const char *title() const { return title_; }
131 //! Returns the list of modules in the group.
132 const ModuleList &modules() const { return modules_; }
135 * Adds a module to the group.
137 * \param[in] name Name of the module.
138 * \param[in] description Description of the module in this group.
139 * \throws std::bad_alloc if out of memory.
141 * If \p description is NULL, the description returned by the module is
144 void addModule(const char *name, const char *description)
146 CommandLineModuleMap::const_iterator moduleIter = allModules_.find(name);
147 GMX_RELEASE_ASSERT(moduleIter != allModules_.end(),
148 "Non-existent module added to a group");
149 if (description == NULL)
151 description = moduleIter->second->shortDescription();
152 GMX_RELEASE_ASSERT(description != NULL,
153 "Module without a description added to a group");
155 const char *const program =
156 ProgramInfo::getInstance().invariantProgramName().c_str();
157 std::string tag(formatString("%s-%s", program, name));
158 modules_.push_back(std::make_pair(tag, description));
162 const CommandLineModuleMap &allModules_;
166 GMX_DISALLOW_COPY_AND_ASSIGN(CommandLineModuleGroupData);
169 } // namespace internal
174 /********************************************************************
180 static const char name[];
181 static const char title[];
182 static const char *const text[];
185 // The first two are not used.
186 const char RootHelpText::name[] = "";
187 const char RootHelpText::title[] = "";
188 const char *const RootHelpText::text[] = {
189 "Usage: [PROGRAM] <command> [<args>]",
193 * Help topic that forms the root of the help tree for the help subcommand.
195 * \ingroup module_commandline
197 class RootHelpTopic : public CompositeHelpTopic<RootHelpText>
201 * Creates a root help topic.
203 * \param[in] modules List of modules for to use for module listings.
207 explicit RootHelpTopic(const CommandLineModuleMap &modules)
212 virtual void writeHelp(const HelpWriterContext &context) const;
215 void printModuleList(const HelpWriterContext &context) const;
217 const CommandLineModuleMap &modules_;
219 GMX_DISALLOW_COPY_AND_ASSIGN(RootHelpTopic);
222 void RootHelpTopic::writeHelp(const HelpWriterContext &context) const
224 if (context.outputFormat() != eHelpOutputFormat_Console)
226 // TODO: Implement once the situation with Redmine issue #969 is more
228 GMX_THROW(NotImplementedError(
229 "Root help is not implemented for this output format"));
231 writeBasicHelpTopic(context, *this, helpText());
232 // TODO: If/when this list becomes long, it may be better to only print
233 // "common" commands here, and have a separate topic (e.g.,
234 // "help commands") that prints the full list.
235 printModuleList(context);
236 context.writeTextBlock(
237 "For additional help on a command, use '[PROGRAM] help <command>'");
238 writeSubTopicList(context,
239 "\nAdditional help is available on the following topics:");
240 context.writeTextBlock(
241 "To access the help, use '[PROGRAM] help <topic>'.");
244 void RootHelpTopic::printModuleList(const HelpWriterContext &context) const
246 if (context.outputFormat() != eHelpOutputFormat_Console)
248 // TODO: Implement once the situation with Redmine issue #969 is more
250 GMX_THROW(NotImplementedError(
251 "Module list is not implemented for this output format"));
253 int maxNameLength = 0;
254 CommandLineModuleMap::const_iterator module;
255 for (module = modules_.begin(); module != modules_.end(); ++module)
257 int nameLength = static_cast<int>(module->first.length());
258 if (module->second->shortDescription() != NULL
259 && nameLength > maxNameLength)
261 maxNameLength = nameLength;
264 File &file = context.outputFile();
265 TextTableFormatter formatter;
266 formatter.addColumn(NULL, maxNameLength + 1, false);
267 formatter.addColumn(NULL, 72 - maxNameLength, true);
268 formatter.setFirstColumnIndent(4);
270 file.writeLine("Available commands:");
271 for (module = modules_.begin(); module != modules_.end(); ++module)
273 const char *name = module->first.c_str();
274 const char *description = module->second->shortDescription();
275 if (description != NULL)
278 formatter.addColumnLine(0, name);
279 formatter.addColumnLine(1, description);
280 file.writeString(formatter.formatRow());
285 /********************************************************************
286 * ModuleHelpTopic declaration
290 * Help topic wrapper for a command-line module.
292 * This class implements HelpTopicInterface such that it wraps a
293 * CommandLineModuleInterface, allowing subcommand "help <command>"
294 * to produce the help for "<command>".
296 * \ingroup module_commandline
298 class ModuleHelpTopic : public HelpTopicInterface
301 //! Constructs a help topic for a specific module.
302 ModuleHelpTopic(const CommandLineModuleInterface &module,
303 const CommandLineHelpModule &helpModule)
304 : module_(module), helpModule_(helpModule)
308 virtual const char *name() const { return module_.name(); }
309 virtual const char *title() const { return NULL; }
310 virtual bool hasSubTopics() const { return false; }
311 virtual const HelpTopicInterface *findSubTopic(const char * /*name*/) const
315 virtual void writeHelp(const HelpWriterContext &context) const;
318 const CommandLineModuleInterface &module_;
319 const CommandLineHelpModule &helpModule_;
321 GMX_DISALLOW_COPY_AND_ASSIGN(ModuleHelpTopic);
324 /********************************************************************
325 * HelpExportInterface
329 * Callbacks for exporting help information for command-line modules.
331 * \ingroup module_commandline
333 class HelpExportInterface
336 //! Shorthand for a list of modules contained in a group.
337 typedef internal::CommandLineModuleGroupData::ModuleList
340 virtual ~HelpExportInterface() {};
343 * Called once before exporting individual modules.
345 * Can, e.g., open shared output files (e.g., if the output is written
346 * into a single file, or if a separate index is required) and write
349 virtual void startModuleExport() = 0;
351 * Called to export the help for each module.
353 * \param[in] module Module for which the help should be exported.
354 * \param[in] tag Unique tag for the module (gmx-something).
355 * \param[in] displayName Display name for the module (gmx something).
357 virtual void exportModuleHelp(
358 const CommandLineModuleInterface &module,
359 const std::string &tag,
360 const std::string &displayName) = 0;
362 * Called after all modules have been exported.
364 * Can close files opened in startModuleExport(), write footers to them
367 virtual void finishModuleExport() = 0;
370 * Called once before exporting module groups.
372 * Can, e.g., open a single output file for listing all the groups.
374 virtual void startModuleGroupExport() = 0;
376 * Called to export the help for each module group.
378 * \param[in] title Title for the group.
379 * \param[in] modules List of modules in the group.
381 virtual void exportModuleGroup(const char *title,
382 const ModuleGroupContents &modules) = 0;
384 * Called after all module groups have been exported.
386 * Can close files opened in startModuleGroupExport(), write footers to them
389 virtual void finishModuleGroupExport() = 0;
393 * Adds hyperlinks to modules within this binary.
395 * \param[in,out] links Links are added here.
396 * \param[in] modules Modules in the current binary.
397 * \throws std::bad_alloc if out of memory.
399 * Initializes a HelpLinks object with links to modules defined in \p modules.
401 * \ingroup module_commandline
403 void initProgramLinks(HelpLinks *links, const CommandLineModuleMap &modules)
405 // TODO: Use the local ProgramInfo reference from CommandLineModuleManager
406 // (to do this nicely requires reordering the code in the file).
407 const char *const program =
408 ProgramInfo::getInstance().realBinaryName().c_str();
409 CommandLineModuleMap::const_iterator module;
410 for (module = modules.begin(); module != modules.end(); ++module)
412 if (module->second->shortDescription() != NULL)
414 std::string linkName("[gmx-" + module->first + "]");
415 std::string targetName(
416 formatString("%s-%s", program, module->first.c_str()));
417 std::string displayName(
418 formatString("[TT]%s %s[tt]", program, module->first.c_str()));
419 links->addLink(linkName, targetName, displayName);
424 /********************************************************************
429 * Implements export for man pages.
431 * \ingroup module_commandline
433 class HelpExportMan : public HelpExportInterface
436 //! Initializes man page exporter.
437 explicit HelpExportMan(const CommandLineModuleMap &modules)
438 : links_(eHelpOutputFormat_Man)
440 initProgramLinks(&links_, modules);
443 virtual void startModuleExport() {}
444 virtual void exportModuleHelp(
445 const CommandLineModuleInterface &module,
446 const std::string &tag,
447 const std::string &displayName);
448 virtual void finishModuleExport() {}
450 virtual void startModuleGroupExport() {}
451 virtual void exportModuleGroup(const char * /*title*/,
452 const ModuleGroupContents & /*modules*/) {}
453 virtual void finishModuleGroupExport() {}
459 void HelpExportMan::exportModuleHelp(
460 const CommandLineModuleInterface &module,
461 const std::string &tag,
462 const std::string &displayName)
464 File file("man1/" + tag + ".1", "w");
466 // TODO: It would be nice to remove the VERSION prefix from the version
467 // string to make it shorter.
468 file.writeLine(formatString(".TH %s 1 \"\" \"%s\" \"GROMACS Manual\"\n",
471 file.writeLine(".SH NAME");
472 file.writeLine(formatString("%s - %s", tag.c_str(),
473 module.shortDescription()));
476 CommandLineHelpContext context(&file, eHelpOutputFormat_Man, &links_);
477 context.setModuleDisplayName(displayName);
478 module.writeHelp(context);
480 file.writeLine(".SH SEE ALSO");
481 file.writeLine(".BR gromacs(7)");
483 file.writeLine("More information about \\fBGROMACS\\fR is available at <\\fIhttp://www.gromacs.org/\\fR>.");
486 /********************************************************************
491 * Implements export for HTML help.
493 * \ingroup module_commandline
495 class HelpExportHtml : public HelpExportInterface
498 //! Initializes HTML exporter.
499 explicit HelpExportHtml(const CommandLineModuleMap &modules);
501 virtual void startModuleExport();
502 virtual void exportModuleHelp(
503 const CommandLineModuleInterface &module,
504 const std::string &tag,
505 const std::string &displayName);
506 virtual void finishModuleExport();
508 virtual void startModuleGroupExport();
509 virtual void exportModuleGroup(const char *title,
510 const ModuleGroupContents &modules);
511 virtual void finishModuleGroupExport();
514 void writeHtmlHeader(File *file, const std::string &title) const;
515 void writeHtmlFooter(File *file) const;
517 boost::scoped_ptr<File> indexFile_;
521 HelpExportHtml::HelpExportHtml(const CommandLineModuleMap &modules)
522 : links_(eHelpOutputFormat_Html)
524 initProgramLinks(&links_, modules);
525 char *linksFilename = low_gmxlibfn("links.dat", FALSE, FALSE);
526 if (linksFilename != NULL)
528 scoped_ptr_sfree guard(linksFilename);
529 File linksFile(linksFilename, "r");
531 while (linksFile.readLine(&line))
533 links_.addLink(line, "../online/" + line, line);
538 void HelpExportHtml::startModuleExport()
540 indexFile_.reset(new File("byname.html", "w"));
541 writeHtmlHeader(indexFile_.get(), "GROMACS Programs by Name");
542 indexFile_->writeLine("<H3>GROMACS Programs Alphabetically</H3>");
545 void HelpExportHtml::exportModuleHelp(
546 const CommandLineModuleInterface &module,
547 const std::string &tag,
548 const std::string &displayName)
550 File file(tag + ".html", "w");
551 writeHtmlHeader(&file, displayName);
553 CommandLineHelpContext context(&file, eHelpOutputFormat_Html, &links_);
554 context.setModuleDisplayName(displayName);
555 module.writeHelp(context);
557 writeHtmlFooter(&file);
560 indexFile_->writeLine(formatString("<a href=\"%s.html\">%s</a> - %s<br>",
561 tag.c_str(), displayName.c_str(),
562 module.shortDescription()));
565 void HelpExportHtml::finishModuleExport()
567 writeHtmlFooter(indexFile_.get());
571 void HelpExportHtml::startModuleGroupExport()
573 indexFile_.reset(new File("bytopic.html", "w"));
574 writeHtmlHeader(indexFile_.get(), "GROMACS Programs by Topic");
575 indexFile_->writeLine("<H3>GROMACS Programs by Topic</H3>");
578 void HelpExportHtml::exportModuleGroup(const char *title,
579 const ModuleGroupContents &modules)
581 indexFile_->writeLine(formatString("<H4>%s</H4>", title));
583 ModuleGroupContents::const_iterator module;
584 for (module = modules.begin(); module != modules.end(); ++module)
586 const std::string &tag(module->first);
587 std::string displayName(tag);
588 std::replace(displayName.begin(), displayName.end(), '-', ' ');
589 indexFile_->writeLine(formatString("<a href=\"%s.html\">%s</a> - %s<br>",
590 tag.c_str(), displayName.c_str(),
595 void HelpExportHtml::finishModuleGroupExport()
597 writeHtmlFooter(indexFile_.get());
601 void HelpExportHtml::writeHtmlHeader(File *file, const std::string &title) const
603 file->writeLine("<HTML>");
604 file->writeLine("<HEAD>");
605 file->writeLine(formatString("<TITLE>%s</TITLE>", title.c_str()));
606 file->writeLine("<LINK rel=stylesheet href=\"../online/style.css\" type=\"text/css\">");
607 file->writeLine("<BODY text=\"#000000\" bgcolor=\"#FFFFFF\" link=\"#0000FF\" vlink=\"#990000\" alink=\"#FF0000\">");
608 file->writeLine("<TABLE WIDTH=\"98%%\" NOBORDER><TR>");
609 file->writeLine("<TD WIDTH=400><TABLE WIDTH=400 NOBORDER>");
610 file->writeLine("<TD WIDTH=116>");
611 file->writeLine("<A HREF=\"http://www.gromacs.org/\">"
612 "<IMG SRC=\"../images/gmxlogo_small.jpg\" BORDER=0>"
614 file->writeLine("</TD>");
615 file->writeLine(formatString("<TD ALIGN=LEFT VALIGN=TOP WIDTH=280>"
616 "<BR><H2>%s</H2>", title.c_str()));
617 file->writeLine("<FONT SIZE=-1><A HREF=\"../online.html\">Main Table of Contents</A></FONT>");
618 file->writeLine("</TD>");
619 file->writeLine("</TABLE></TD>");
620 file->writeLine("<TD WIDTH=\"*\" ALIGN=RIGHT VALIGN=BOTTOM>");
621 file->writeLine(formatString("<P><B>%s</B>", GromacsVersion()));
622 file->writeLine("</TD>");
623 file->writeLine("</TR></TABLE>");
624 file->writeLine("<HR>");
627 void HelpExportHtml::writeHtmlFooter(File *file) const
629 file->writeLine("<P>");
630 file->writeLine("<HR>");
631 file->writeLine("<DIV ALIGN=RIGHT><FONT SIZE=\"-1\">");
632 file->writeLine("<A HREF=\"http://www.gromacs.org\">http://www.gromacs.org</A><BR>");
633 file->writeLine("</FONT></DIV>");
634 file->writeLine("</BODY>");
635 file->writeLine("</HTML>");
640 /********************************************************************
641 * CommandLineHelpModule
646 * Command-line module for producing help.
648 * This module implements the 'help' subcommand that is automatically added by
649 * CommandLineModuleManager.
651 * \ingroup module_commandline
653 class CommandLineHelpModule : public CommandLineModuleInterface
657 * Creates a command-line help module.
659 * \param[in] programInfo Information about the running binary.
660 * \param[in] modules List of modules for to use for module listings.
661 * \param[in] groups List of module groups.
662 * \throws std::bad_alloc if out of memory.
664 CommandLineHelpModule(const ProgramInfo &programInfo,
665 const CommandLineModuleMap &modules,
666 const CommandLineModuleGroupList &groups);
669 * Adds a top-level help topic.
671 * \param[in] topic Help topic to add.
672 * \throws std::bad_alloc if out of memory.
674 void addTopic(HelpTopicPointer topic);
675 //! Sets whether hidden options will be shown in help.
676 void setShowHidden(bool bHidden) { bHidden_ = bHidden; }
678 * Sets an override to show the help for the given module.
680 * If called, the help module directly prints the help for the given
681 * module when called, skipping any other processing.
683 void setModuleOverride(const CommandLineModuleInterface &module)
685 moduleOverride_ = &module;
688 //! Returns the context object for help output.
689 const CommandLineHelpContext &context() const
693 //! Returns the program info object for the running binary.
694 const ProgramInfo &programInfo() const
699 virtual const char *name() const { return "help"; }
700 virtual const char *shortDescription() const
702 return "Print help information";
705 virtual int run(int argc, char *argv[]);
706 virtual void writeHelp(const CommandLineHelpContext &context) const;
709 void exportHelp(HelpExportInterface *exporter) const;
711 boost::scoped_ptr<RootHelpTopic> rootTopic_;
712 const ProgramInfo &programInfo_;
713 const CommandLineModuleMap &modules_;
714 const CommandLineModuleGroupList &groups_;
716 CommandLineHelpContext *context_;
717 const CommandLineModuleInterface *moduleOverride_;
720 GMX_DISALLOW_COPY_AND_ASSIGN(CommandLineHelpModule);
723 CommandLineHelpModule::CommandLineHelpModule(
724 const ProgramInfo &programInfo,
725 const CommandLineModuleMap &modules,
726 const CommandLineModuleGroupList &groups)
727 : rootTopic_(new RootHelpTopic(modules)), programInfo_(programInfo),
728 modules_(modules), groups_(groups),
729 context_(NULL), moduleOverride_(NULL), bHidden_(false)
733 void CommandLineHelpModule::addTopic(HelpTopicPointer topic)
735 rootTopic_->addSubTopic(move(topic));
738 int CommandLineHelpModule::run(int argc, char *argv[])
740 const char *const exportFormats[] = { "man", "html", "completion" };
741 std::string exportFormat;
742 Options options(NULL, NULL);
743 options.addOption(StringOption("export").store(&exportFormat)
744 .enumValue(exportFormats));
745 CommandLineParser(&options).parse(&argc, argv);
746 if (!exportFormat.empty())
748 boost::scoped_ptr<HelpExportInterface> exporter;
749 if (exportFormat == "man")
751 exporter.reset(new HelpExportMan(modules_));
753 else if (exportFormat == "html")
755 exporter.reset(new HelpExportHtml(modules_));
759 GMX_THROW(NotImplementedError("This help format is not implemented"));
761 exportHelp(exporter.get());
765 HelpLinks links(eHelpOutputFormat_Console);
766 initProgramLinks(&links, modules_);
767 boost::scoped_ptr<CommandLineHelpContext> context(
768 new CommandLineHelpContext(&File::standardOutput(),
769 eHelpOutputFormat_Console, &links));
770 context->setShowHidden(bHidden_);
771 if (moduleOverride_ != NULL)
773 context->setModuleDisplayName(programInfo_.displayName());
774 moduleOverride_->writeHelp(*context);
777 context_ = context.get();
779 HelpManager helpManager(*rootTopic_, context->writerContext());
782 for (int i = 1; i < argc; ++i)
784 helpManager.enterTopic(argv[i]);
787 catch (const InvalidInputError &ex)
789 fprintf(stderr, "%s\n", ex.what());
792 helpManager.writeCurrentTopic();
796 void CommandLineHelpModule::writeHelp(const CommandLineHelpContext &context) const
798 const HelpWriterContext &writerContext = context.writerContext();
800 if (writerContext.outputFormat() != eHelpOutputFormat_Console)
804 writerContext.writeTextBlock(
805 "Usage: [PROGRAM] help [<command>|<topic> [<subtopic> [...]]]");
806 // TODO: More information.
809 void CommandLineHelpModule::exportHelp(HelpExportInterface *exporter) const
811 // TODO: Would be nicer to have the file names supplied by the build system
812 // and/or export a list of files from here.
813 const char *const program = programInfo_.realBinaryName().c_str();
815 exporter->startModuleExport();
816 CommandLineModuleMap::const_iterator module;
817 for (module = modules_.begin(); module != modules_.end(); ++module)
819 if (module->second->shortDescription() != NULL)
821 const char *const moduleName = module->first.c_str();
822 std::string tag(formatString("%s-%s", program, moduleName));
823 std::string displayName(tag);
824 std::replace(displayName.begin(), displayName.end(), '-', ' ');
825 exporter->exportModuleHelp(*module->second, tag, displayName);
828 exporter->finishModuleExport();
830 exporter->startModuleGroupExport();
831 CommandLineModuleGroupList::const_iterator group;
832 for (group = groups_.begin(); group != groups_.end(); ++group)
834 exporter->exportModuleGroup((*group)->title(), (*group)->modules());
836 exporter->finishModuleGroupExport();
842 /********************************************************************
843 * ModuleHelpTopic implementation
846 void ModuleHelpTopic::writeHelp(const HelpWriterContext & /*context*/) const
848 CommandLineHelpContext context(helpModule_.context());
849 const char *const program =
850 helpModule_.programInfo().realBinaryName().c_str();
851 context.setModuleDisplayName(formatString("%s %s", program, module_.name()));
852 module_.writeHelp(context);
855 /********************************************************************
856 * CMainCommandLineModule
860 * Implements a CommandLineModuleInterface, given a function with C/C++ main()
863 * \ingroup module_commandline
865 class CMainCommandLineModule : public CommandLineModuleInterface
868 //! \copydoc gmx::CommandLineModuleManager::CMainFunction
869 typedef CommandLineModuleManager::CMainFunction CMainFunction;
872 * Creates a wrapper module for the given main function.
874 * \param[in] name Name for the module.
875 * \param[in] shortDescription One-line description for the module.
876 * \param[in] mainFunction Main function to wrap.
878 * Does not throw. This is essential for correct implementation of
879 * CommandLineModuleManager::runAsMainCMain().
881 CMainCommandLineModule(const char *name, const char *shortDescription,
882 CMainFunction mainFunction)
883 : name_(name), shortDescription_(shortDescription),
884 mainFunction_(mainFunction)
888 virtual const char *name() const
892 virtual const char *shortDescription() const
894 return shortDescription_;
897 virtual int run(int argc, char *argv[])
899 return mainFunction_(argc, argv);
901 virtual void writeHelp(const CommandLineHelpContext &context) const
903 const HelpOutputFormat format = context.writerContext().outputFormat();
907 case eHelpOutputFormat_Console:
910 case eHelpOutputFormat_Man:
913 case eHelpOutputFormat_Html:
917 GMX_THROW(NotImplementedError(
918 "Command-line help is not implemented for this output format"));
922 // TODO: The constness should not be cast away.
923 argv[0] = const_cast<char *>(name_);
924 argv[1] = const_cast<char *>("-man");
925 argv[2] = const_cast<char *>(type);
927 GlobalCommandLineHelpContext global(context);
928 mainFunction_(argc, argv);
933 const char *shortDescription_;
934 CMainFunction mainFunction_;
940 /********************************************************************
941 * CommandLineModuleManager::Impl
945 * Private implementation class for CommandLineModuleManager.
947 * \ingroup module_commandline
949 class CommandLineModuleManager::Impl
953 * Initializes the implementation class.
955 * \param programInfo Program information for the running binary.
957 explicit Impl(ProgramInfo *programInfo);
960 * Helper method that adds a given module to the module manager.
962 * \throws std::bad_alloc if out of memory.
964 void addModule(CommandLineModulePointer module);
966 * Creates the help module if it does not yet exist.
968 * \throws std::bad_alloc if out of memory.
970 * This method should be called before accessing \a helpModule_.
972 void ensureHelpModuleExists();
975 * Finds a module that matches a name.
977 * \param[in] name Module name to find.
978 * \returns Iterator to the found module, or
979 * \c modules_.end() if not found.
983 CommandLineModuleMap::const_iterator
984 findModuleByName(const std::string &name) const;
986 * Finds a module that the name of the binary.
988 * \param[in] programInfo Program information object to use.
989 * \throws std::bad_alloc if out of memory.
990 * \returns Iterator to the found module, or
991 * \c modules_.end() if not found.
993 * Checks whether the program is invoked through a symlink whose name
994 * is different from ProgramInfo::realBinaryName(), and if so, checks
995 * if a module name matches the name of the symlink.
997 * Note that the \p programInfo parameter is currently not necessary
998 * (as the program info object is also contained as a member), but it
999 * clarifies the control flow.
1001 CommandLineModuleMap::const_iterator
1002 findModuleFromBinaryName(const ProgramInfo &programInfo) const;
1005 * Processes command-line options for the wrapper binary.
1007 * \param[in,out] argc On input, argc passed to run().
1008 * On output, argc to be passed to the module.
1009 * \param[in,out] argv On input, argv passed to run().
1010 * On output, argv to be passed to the module.
1011 * \throws InvalidInputError if there are invalid options.
1012 * \returns The module that should be run.
1014 * Handles command-line options that affect the wrapper binary
1015 * (potentially changing the members of \c this in response to the
1016 * options). Also finds the module that should be run and the
1017 * arguments that should be passed to it.
1019 CommandLineModuleInterface *
1020 processCommonOptions(int *argc, char ***argv);
1023 * Maps module names to module objects.
1025 * Owns the contained modules.
1027 CommandLineModuleMap modules_;
1029 * List of groupings for modules for help output.
1031 * Owns the contained module group data objects.
1032 * CommandLineModuleGroup objects point to the data objects contained
1035 CommandLineModuleGroupList moduleGroups_;
1036 //! Information about the currently running program.
1037 ProgramInfo &programInfo_;
1039 * Module that implements help for the binary.
1041 * The pointed module is owned by the \a modules_ container.
1043 CommandLineHelpModule *helpModule_;
1044 //! Settings for what to write in the startup header.
1045 BinaryInformationSettings binaryInfoSettings_;
1046 //! If non-NULL, run this module in single-module mode.
1047 CommandLineModuleInterface *singleModule_;
1048 //! Whether all stderr output should be suppressed.
1050 //! Whether to write the startup information to stdout iso stderr.
1054 GMX_DISALLOW_COPY_AND_ASSIGN(Impl);
1057 CommandLineModuleManager::Impl::Impl(ProgramInfo *programInfo)
1058 : programInfo_(*programInfo), helpModule_(NULL), singleModule_(NULL),
1059 bQuiet_(false), bStdOutInfo_(false)
1061 binaryInfoSettings_.copyright(true);
1064 void CommandLineModuleManager::Impl::addModule(CommandLineModulePointer module)
1066 GMX_ASSERT(modules_.find(module->name()) == modules_.end(),
1067 "Attempted to register a duplicate module name");
1068 ensureHelpModuleExists();
1069 HelpTopicPointer helpTopic(new ModuleHelpTopic(*module, *helpModule_));
1070 modules_.insert(std::make_pair(std::string(module->name()),
1072 helpModule_->addTopic(move(helpTopic));
1075 void CommandLineModuleManager::Impl::ensureHelpModuleExists()
1077 if (helpModule_ == NULL)
1079 helpModule_ = new CommandLineHelpModule(programInfo_, modules_,
1081 addModule(CommandLineModulePointer(helpModule_));
1085 CommandLineModuleMap::const_iterator
1086 CommandLineModuleManager::Impl::findModuleByName(const std::string &name) const
1088 // TODO: Accept unambiguous prefixes?
1089 return modules_.find(name);
1092 CommandLineModuleMap::const_iterator
1093 CommandLineModuleManager::Impl::findModuleFromBinaryName(
1094 const ProgramInfo &programInfo) const
1096 std::string binaryName = programInfo.invariantProgramName();
1097 if (binaryName == programInfo.realBinaryName())
1099 return modules_.end();
1101 if (binaryName.compare(0, 2, "g_") == 0)
1103 binaryName.erase(0, 2);
1105 if (binaryName.compare(0, 3, "gmx") == 0)
1107 binaryName.erase(0, 3);
1109 return findModuleByName(binaryName);
1112 CommandLineModuleInterface *
1113 CommandLineModuleManager::Impl::processCommonOptions(int *argc, char ***argv)
1115 // Check if we are directly invoking a certain module.
1116 CommandLineModuleInterface *module = singleModule_;
1119 // Also check for invokation through named symlinks.
1120 CommandLineModuleMap::const_iterator moduleIter
1121 = findModuleFromBinaryName(programInfo_);
1122 if (moduleIter != modules_.end())
1124 module = moduleIter->second.get();
1129 bool bHidden = false;
1130 bool bVersion = false;
1131 bool bCopyright = true;
1132 // TODO: Print the common options into the help.
1133 // TODO: It would be nice to propagate at least the -quiet option to
1134 // the modules so that they can also be quiet in response to this.
1135 Options options(NULL, NULL);
1136 options.addOption(BooleanOption("h").store(&bHelp));
1137 options.addOption(BooleanOption("hidden").store(&bHidden));
1138 options.addOption(BooleanOption("quiet").store(&bQuiet_));
1139 options.addOption(BooleanOption("version").store(&bVersion));
1140 options.addOption(BooleanOption("copyright").store(&bCopyright));
1144 // If not in single-module mode, process options to the wrapper binary.
1145 // TODO: Ideally, this could be done by CommandLineParser.
1146 int argcForWrapper = 1;
1147 while (argcForWrapper < *argc && (*argv)[argcForWrapper][0] == '-')
1151 if (argcForWrapper > 1)
1153 CommandLineParser(&options).parse(&argcForWrapper, *argv);
1155 // If no action requested and there is a module specified, process it.
1156 if (argcForWrapper < *argc && !bHelp && !bVersion)
1158 const char *moduleName = (*argv)[argcForWrapper];
1159 CommandLineModuleMap::const_iterator moduleIter
1160 = findModuleByName(moduleName);
1161 if (moduleIter == modules_.end())
1163 std::string message =
1164 formatString("'%s' is not a GROMACS command.", moduleName);
1165 GMX_THROW(InvalidInputError(message));
1167 module = moduleIter->second.get();
1168 *argc -= argcForWrapper;
1169 *argv += argcForWrapper;
1170 // After this point, argc and argv are the same independent of
1171 // which path is taken: (*argv)[0] is the module name.
1176 if (singleModule_ == NULL)
1178 programInfo_.setDisplayName(
1179 programInfo_.realBinaryName() + " " + module->name());
1181 // Recognize the common options also after the module name.
1182 // TODO: It could be nicer to only recognize -h/-hidden if module is not
1184 CommandLineParser(&options).skipUnknown(true).parse(argc, *argv);
1187 binaryInfoSettings_.extendedInfo(bVersion);
1188 binaryInfoSettings_.copyright(bCopyright);
1192 bStdOutInfo_ = true;
1195 // If no module specified and no other action, show the help.
1196 // Also explicitly specifying -h for the wrapper binary goes here.
1197 if (module == NULL || bHelp)
1199 ensureHelpModuleExists();
1202 helpModule_->setModuleOverride(*module);
1205 module = helpModule_;
1207 if (module == helpModule_)
1209 helpModule_->setShowHidden(bHidden);
1214 /********************************************************************
1215 * CommandLineModuleManager
1218 CommandLineModuleManager::CommandLineModuleManager(ProgramInfo *programInfo)
1219 : impl_(new Impl(programInfo))
1223 CommandLineModuleManager::~CommandLineModuleManager()
1227 void CommandLineModuleManager::setQuiet(bool bQuiet)
1229 impl_->bQuiet_ = bQuiet;
1232 void CommandLineModuleManager::setSingleModule(CommandLineModuleInterface *module)
1234 impl_->singleModule_ = module;
1237 void CommandLineModuleManager::addModule(CommandLineModulePointer module)
1239 impl_->addModule(move(module));
1242 void CommandLineModuleManager::addModuleCMain(
1243 const char *name, const char *shortDescription,
1244 CMainFunction mainFunction)
1246 CommandLineModulePointer module(
1247 new CMainCommandLineModule(name, shortDescription, mainFunction));
1248 addModule(move(module));
1251 CommandLineModuleGroup CommandLineModuleManager::addModuleGroup(
1254 CommandLineModuleGroupDataPointer group(
1255 new internal::CommandLineModuleGroupData(impl_->modules_, title));
1256 impl_->moduleGroups_.push_back(move(group));
1257 return CommandLineModuleGroup(impl_->moduleGroups_.back().get());
1260 void CommandLineModuleManager::addHelpTopic(HelpTopicPointer topic)
1262 impl_->ensureHelpModuleExists();
1263 impl_->helpModule_->addTopic(move(topic));
1266 int CommandLineModuleManager::run(int argc, char *argv[])
1268 CommandLineModuleInterface *module;
1269 const bool bMaster = (!gmx_mpi_initialized() || gmx_node_rank() == 0);
1272 module = impl_->processCommonOptions(&argc, &argv);
1274 catch (const std::exception &)
1276 if (bMaster && !impl_->bQuiet_)
1278 printBinaryInformation(stderr, impl_->programInfo_,
1279 impl_->binaryInfoSettings_);
1285 impl_->bQuiet_ = true;
1287 if (!impl_->bQuiet_)
1289 FILE *out = (impl_->bStdOutInfo_ ? stdout : stderr);
1290 printBinaryInformation(out, impl_->programInfo_,
1291 impl_->binaryInfoSettings_);
1298 int rc = module->run(argc, argv);
1299 if (!impl_->bQuiet_)
1307 int CommandLineModuleManager::runAsMainSingleModule(
1308 int argc, char *argv[], CommandLineModuleInterface *module)
1310 ProgramInfo &programInfo = gmx::init(&argc, &argv);
1313 CommandLineModuleManager manager(&programInfo);
1314 manager.setSingleModule(module);
1315 int rc = manager.run(argc, argv);
1319 catch (const std::exception &ex)
1321 printFatalErrorMessage(stderr, ex);
1322 return processExceptionAtExit(ex);
1327 int CommandLineModuleManager::runAsMainCMain(
1328 int argc, char *argv[], CMainFunction mainFunction)
1330 CMainCommandLineModule module(argv[0], NULL, mainFunction);
1331 return runAsMainSingleModule(argc, argv, &module);
1334 /********************************************************************
1335 * CommandLineModuleGroup
1338 void CommandLineModuleGroup::addModule(const char *name)
1340 impl_->addModule(name, NULL);
1343 void CommandLineModuleGroup::addModuleWithDescription(const char *name,
1344 const char *description)
1346 impl_->addModule(name, description);