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1 : //* This file is part of the MOOSE framework
2 : //* https://mooseframework.inl.gov
3 : //*
4 : //* All rights reserved, see COPYRIGHT for full restrictions
5 : //* https://github.com/idaholab/moose/blob/master/COPYRIGHT
6 : //*
7 : //* Licensed under LGPL 2.1, please see LICENSE for details
8 : //* https://www.gnu.org/licenses/lgpl-2.1.html
9 :
10 : #include "CommandLine.h"
11 :
12 : // C++ includes
13 : #include <iomanip>
14 : #include <optional>
15 :
16 : #include "pcrecpp.h"
17 :
18 : #include "hit.h"
19 :
20 : #include "libmesh/libmesh.h"
21 : #include "libmesh/simple_range.h"
22 : #include "libmesh/parallel_algebra.h"
23 : #include "libmesh/parallel_sync.h"
24 :
25 : #include "PetscSupport.h"
26 :
27 242 : CommandLine::CommandLine() {}
28 114802 : CommandLine::CommandLine(int argc, char * argv[]) { addArguments(argc, argv); }
29 12525 : CommandLine::CommandLine(const std::vector<std::string> & args) { addArguments(args); }
30 :
31 : void
32 114802 : CommandLine::addArguments(int argc, char * argv[])
33 : {
34 1336060 : for (int i = 0; i < argc; i++)
35 2442516 : addArgument(argv[i]);
36 114802 : }
37 :
38 : void
39 1285315 : CommandLine::addArgument(const std::string & arg)
40 : {
41 : mooseAssert(!hasParsed(), "Has already parsed");
42 1285315 : _argv.push_back(arg);
43 1285315 : }
44 :
45 : void
46 12545 : CommandLine::addArguments(const std::vector<std::string> & args)
47 : {
48 75876 : for (const auto & arg : args)
49 63331 : addArgument(arg);
50 12545 : }
51 :
52 : bool
53 30 : CommandLine::hasArgument(const std::string & arg) const
54 : {
55 30 : return std::find(_argv.begin(), _argv.end(), arg) != _argv.end();
56 : }
57 :
58 : void
59 4 : CommandLine::removeArgument(const std::string & arg)
60 : {
61 : mooseAssert(!hasParsed(), "Has already parsed");
62 4 : auto it = std::find(_argv.begin(), _argv.end(), arg);
63 4 : if (it == _argv.end())
64 2 : mooseError("CommandLine::removeArgument(): The argument '", arg, "' does not exist");
65 2 : _argv.erase(it);
66 2 : }
67 :
68 : void
69 127565 : CommandLine::parse()
70 : {
71 : mooseAssert(!hasParsed(), "Has already parsed");
72 : mooseAssert(_entries.empty(), "Should be empty");
73 :
74 : // Whether or not we have a entry that accepts values
75 127565 : bool has_value_accepting_entry = false;
76 :
77 : // Helper for adding an entry
78 1141896 : auto add_entry = [this](const auto & name) -> Entry &
79 : {
80 1141896 : auto & entry = _entries.emplace_back();
81 1141896 : entry.name = name;
82 1141896 : return entry;
83 127565 : };
84 :
85 : // Work through each argument
86 1412858 : for (const auto i : index_range(_argv))
87 : {
88 1285309 : const auto & arg = _argv[i];
89 1285309 : const auto begins_with_dash = MooseUtils::beginsWith(arg, "-");
90 1285309 : std::string subapp_prefix, subapp_name, hit_path, hit_value;
91 :
92 : // MultiApp syntax with a non-hit option
93 1285309 : if (!begins_with_dash && std::regex_search(arg, std::regex("^(([^\\s\n\t[\\]\\/=#&:]+):)[-]")))
94 : {
95 12 : mooseError("The MultiApp command line argument '",
96 : arg,
97 : "' sets a command line option.\nMultiApp command line arguments can only be "
98 : "used for setting HIT parameters.");
99 : }
100 : // Match HIT CLI syntax (including for multiapps with the prefix)
101 : // For subapp hit cli syntax (i.e, <subname>:<value)), we will store the
102 : // subapp names to be stripped away in initSubAppCommandLine() as they
103 : // are passed down
104 1772971 : else if (!begins_with_dash &&
105 1772971 : pcrecpp::RE("(([^\\s\n\t[\\]\\/=#&:]+)?:)?((?:[^\\s\n\t[\\]=#&]+\\/"
106 : ")?(?:[^\\s\n\t=#$'\"]+))=([^#]+)?")
107 1772971 : .FullMatch(arg, &subapp_prefix, &subapp_name, &hit_path, &hit_value))
108 : {
109 229917 : auto & entry = add_entry(hit_path);
110 229917 : if (subapp_prefix.size())
111 : {
112 866 : if (subapp_name.empty()) // :param=value; means apply to all
113 154 : entry.global = true;
114 : else
115 712 : entry.subapp_name = subapp_name;
116 : }
117 229917 : entry.value = MooseUtils::removeExtraWhitespace(hit_value);
118 229917 : entry.value_separator = "=";
119 229917 : entry.raw_args.push_back(arg);
120 229917 : entry.hit_param = true;
121 229917 : has_value_accepting_entry = false;
122 : }
123 : // Has an = sign in it, so we have a name=value (non-HIT)
124 1055380 : else if (const auto find_equals = arg.find("="); find_equals != std::string::npos)
125 : {
126 125904 : const auto begin = arg.substr(0, find_equals);
127 125904 : const auto end = arg.substr(find_equals + 1);
128 125904 : auto & entry = add_entry(begin);
129 125904 : entry.value = MooseUtils::removeExtraWhitespace(end);
130 125904 : entry.value_separator = "=";
131 125904 : entry.raw_args.push_back(arg);
132 125904 : has_value_accepting_entry = false;
133 125904 : }
134 : // Begins with dash(es) and a character, so a new argument. We pass on
135 : // everything else that starts with a dash as a value, so the error
136 : // will be associated with the value before it
137 929476 : else if (std::regex_search(arg, std::regex("^\\-+[a-zA-Z]")))
138 : {
139 671719 : auto & entry = add_entry(arg);
140 671719 : entry.raw_args.push_back(arg);
141 671719 : has_value_accepting_entry = true;
142 : }
143 : // Should be tagging on a value to the previous argument
144 : else
145 : {
146 : // First one is the executable
147 257757 : if (i == 0)
148 : {
149 114356 : auto & entry = add_entry(arg);
150 114356 : entry.raw_args.push_back(arg);
151 114356 : continue;
152 114356 : }
153 :
154 : // Throw an error if this a value and we don't have anything to apply it to
155 143401 : if (!has_value_accepting_entry)
156 : {
157 4 : std::stringstream err;
158 : err << "The command line argument '" << arg
159 4 : << "' is not applied to an option and is not a HIT parameter.";
160 : // Maybe they meant to apply it to the previous thing
161 : // Example: "-i foo.i bar.i" would suggest "-i 'foo.i bar.i'"
162 4 : if (i > 0 && _entries.back().value)
163 : {
164 : err << "\n\nDid you mean to combine this argument with the previous argument, such "
165 : "as:\n\n "
166 2 : << _entries.back().name << *_entries.back().value_separator << "'"
167 4 : << *_entries.back().value << " " << arg << "'\n";
168 : }
169 8 : mooseError(err.str());
170 4 : }
171 :
172 143397 : auto & entry = _entries.back();
173 143397 : if (entry.value)
174 460 : *entry.value += " " + MooseUtils::removeExtraWhitespace(arg);
175 : else
176 142937 : entry.value = MooseUtils::removeExtraWhitespace(arg);
177 143397 : entry.value_separator = " ";
178 143397 : entry.raw_args.push_back(arg);
179 : }
180 1628425 : }
181 :
182 127549 : _has_parsed = true;
183 127549 : }
184 :
185 : const std::list<CommandLine::Entry> &
186 5107212 : CommandLine::getEntries() const
187 : {
188 : mooseAssert(hasParsed(), "Has not parsed");
189 5107212 : return _entries;
190 : }
191 :
192 : std::list<CommandLine::Entry> &
193 94901 : CommandLine::getEntries()
194 : {
195 : mooseAssert(hasParsed(), "Has not parsed");
196 94901 : return _entries;
197 : }
198 :
199 185952 : CommandLine::~CommandLine() {}
200 :
201 : std::unique_ptr<CommandLine>
202 12495 : CommandLine::initSubAppCommandLine(const std::string & multiapp_name,
203 : const std::string & subapp_name,
204 : const std::vector<std::string> & input_cli_args)
205 : {
206 : mooseAssert(MooseUtils::beginsWith(subapp_name, multiapp_name),
207 : "Name for the subapp should begin with the multiapp");
208 :
209 12495 : std::vector<std::string> subapp_args;
210 :
211 : // Start with the arguments from the input file; we want these to take the
212 : // lowest priority so we put them first. Also trim extra whitespace
213 19935 : for (const auto & arg : input_cli_args)
214 7440 : subapp_args.push_back(MooseUtils::removeExtraWhitespace(arg));
215 :
216 : // Pull out all of the arguments that are relevant to this multiapp from the parent
217 : // Note that the 0th argument of the main app, i.e., the name used to invoke the program,
218 : // is neither a global entry nor a subapp entry and, as such, won't be passed on
219 138953 : for (auto & entry : as_range(getEntries().begin(), getEntries().end()))
220 199258 : if (entry.global || (entry.subapp_name && (*entry.subapp_name == multiapp_name ||
221 72800 : *entry.subapp_name == subapp_name)))
222 : {
223 54406 : if (entry.hit_param)
224 : {
225 : // Append : to the beginning if this is global and should be passed to all
226 553 : const std::string prefix = entry.global ? ":" : "";
227 : // Apply the param, but without the subapp name
228 553 : subapp_args.push_back(prefix + entry.name + *entry.value_separator + *entry.value);
229 : // Mark this entry as used as a child has consumed it
230 553 : entry.used = true;
231 553 : }
232 : else
233 53853 : subapp_args.insert(subapp_args.end(), entry.raw_args.begin(), entry.raw_args.end());
234 : }
235 :
236 24990 : return std::make_unique<CommandLine>(subapp_args);
237 12495 : }
238 :
239 : std::vector<std::string>
240 69911 : CommandLine::buildHitParams()
241 : {
242 : mooseAssert(!_hit_params_built, "Already built");
243 69911 : _hit_params_built = true;
244 :
245 69911 : std::vector<std::string> params;
246 :
247 : // Collect all hit parameters that aren't for subapps
248 671563 : for (auto & entry : getEntries())
249 601652 : if (entry.hit_param && !entry.subapp_name)
250 : {
251 : mooseAssert(entry.value, "Should have a value");
252 : mooseAssert(entry.value_separator, "Should have value separator");
253 : mooseAssert(*entry.value_separator == "=", "Should be an equals");
254 :
255 118541 : const std::string name_and_equals = entry.name + *entry.value_separator;
256 118541 : std::string arg = name_and_equals;
257 : // In the case of empty values, we want them to be empty to hit
258 118541 : if (entry.value->empty())
259 1157 : arg += "''";
260 : else
261 117384 : arg += *entry.value;
262 :
263 : // We could have issues with bash eating strings, so the first try
264 : // gives us a chance to wrap the value in quotes
265 : try
266 : {
267 237082 : hit::check("CLI_ARG", arg);
268 : }
269 5609 : catch (hit::Error & err)
270 : {
271 : // bash might have eaten quotes around a hit string value or vector
272 : // so try quoting after the "=" and reparse
273 5609 : arg = name_and_equals + "'" + *entry.value + "'";
274 : try
275 : {
276 5609 : hit::check("CLI_ARG", arg);
277 : }
278 : // At this point, we've failed to fix it
279 0 : catch (hit::Error & err)
280 : {
281 0 : mooseError("Failed to parse HIT in command line argument '", arg, "'\n\n", err.what());
282 0 : }
283 5609 : }
284 :
285 : // Append to the total output
286 118541 : params.push_back(arg);
287 : // Consider this parameter used
288 118541 : entry.used = true;
289 118541 : }
290 :
291 69911 : return params;
292 0 : }
293 :
294 : void
295 127418 : CommandLine::populateCommandLineParams(InputParameters & params)
296 : {
297 : mooseAssert(!_command_line_params_populated, "Already populated");
298 :
299 : // Set the metadata for each command line parameter
300 : // We set this separately so that it can be used later to print usage
301 127418 : std::map<std::string, std::string> switch_param_map;
302 6701423 : for (const auto & name_value_pair : params)
303 : {
304 6574007 : const auto & name = name_value_pair.first;
305 6574007 : if (const auto metadata = params.queryCommandLineMetadata(name))
306 : {
307 5211936 : auto it_inserted_pair = _command_line_params.emplace(name, CommandLineParam());
308 5211936 : auto & option = it_inserted_pair.first->second;
309 :
310 5211936 : option.description = params.getDocString(name);
311 5211936 : option.metadata = *metadata;
312 :
313 : // Make sure that one switch isn't specified for multiple parameters
314 10843150 : for (const auto & cli_switch : option.metadata.switches)
315 5631216 : if (const auto it_inserted_pair = switch_param_map.emplace(cli_switch, name);
316 5631216 : !it_inserted_pair.second)
317 2 : mooseError("The command line options '",
318 2 : it_inserted_pair.first->second,
319 : "' and '",
320 : name,
321 : "' both declare the command line switch '",
322 : cli_switch,
323 : "'");
324 6574007 : }
325 : }
326 :
327 : // Set each paramter that we have a value for
328 5339330 : for (const auto & [name, param] : _command_line_params)
329 : {
330 5211932 : auto entry_it = findCommandLineParam(name);
331 5211932 : if (entry_it != _entries.end())
332 : {
333 467405 : auto & entry = *entry_it;
334 : mooseAssert(!entry.subapp_name, "Should not be for a subapp");
335 :
336 467405 : bool found = false;
337 : #define trySetParameter(type) \
338 : if (!found && params.have_parameter<type>(name)) \
339 : { \
340 : static_assert(InputParameters::isValidCommandLineType<type>::value, "Not a supported value"); \
341 : auto & value = params.set<type>(name); \
342 : setCommandLineParam(entry_it, param, entry.name, value); \
343 : found = true; \
344 : }
345 :
346 467405 : trySetParameter(std::string);
347 467401 : trySetParameter(std::vector<std::string>);
348 467401 : trySetParameter(Real);
349 467399 : trySetParameter(unsigned int);
350 467397 : trySetParameter(int);
351 467395 : trySetParameter(bool);
352 467393 : trySetParameter(MooseEnum);
353 : #undef trySetParameter
354 :
355 : mooseAssert(found, "Should have been found");
356 :
357 : // If we found this parameter, that means we set it and we should mark in the
358 : // InputParameters that it is set so that isParamSetByUser() returns true for this param
359 467389 : params.commandLineParamSet(name, {});
360 :
361 : // If this parameter is global, mark its entry as global
362 467389 : if (param.metadata.global)
363 287376 : entry.global = true;
364 :
365 : // If the arg is of the form "--key=value", PETSc will recognize it as an unused
366 : // argument. That is, setting "--key" as a known command line argument is not
367 : // sufficient for PETSc to consider "--key=value" as known. Thus, we explicitly
368 : // add "--key=value" args as known when we come across them.
369 467389 : if (entry.value_separator && *entry.value_separator == "=")
370 : {
371 : mooseAssert(entry.raw_args.size() == 1, "Should have one value");
372 57592 : libMesh::add_command_line_name(entry.raw_args[0]);
373 : }
374 : }
375 : // If we didn't find it and it is required, we need to error
376 4744527 : else if (param.metadata.required)
377 2 : mooseError(
378 2 : "Missing required command-line parameter: ", name, "\nDoc string: ", param.description);
379 : }
380 :
381 127398 : _command_line_params_populated = true;
382 127418 : }
383 :
384 : std::string
385 64 : CommandLine::getExecutableName() const
386 : {
387 : mooseAssert(_entries.size() > 0, "Does not have any entries");
388 :
389 : // Grab the first item out of argv
390 64 : const auto & command = _entries.begin()->name;
391 64 : return command.substr(command.find_last_of("/\\") + 1);
392 : }
393 :
394 : std::string
395 14 : CommandLine::getExecutableNameBase() const
396 : {
397 14 : auto name = getExecutableName();
398 14 : name = name.substr(0, name.find_last_of("-"));
399 14 : if (name.find_first_of("/") != std::string::npos)
400 0 : name = name.substr(name.find_first_of("/") + 1, std::string::npos);
401 14 : return name;
402 0 : }
403 :
404 : void
405 29 : CommandLine::printUsage() const
406 : {
407 29 : Moose::out << "Usage: " << getExecutableName() << " [<options>]\n\n";
408 :
409 29 : std::size_t max_len = 0;
410 2122 : for (const auto & name_option_pair : _command_line_params)
411 2093 : max_len = std::max(max_len, name_option_pair.second.metadata.syntax.size());
412 :
413 58 : const auto output_options = [this, &max_len](const bool global)
414 : {
415 58 : Moose::out << (global ? "Global " : "") << "Options:\n" << std::left;
416 4244 : for (const auto & name_option_pair : _command_line_params)
417 : {
418 4186 : const auto & option = name_option_pair.second;
419 4186 : if (option.metadata.syntax.empty() || option.metadata.global != global)
420 2093 : continue;
421 :
422 4186 : Moose::out << " " << std::setw(max_len + 2) << option.metadata.syntax << option.description
423 2093 : << "\n";
424 : }
425 58 : Moose::out << "\n";
426 58 : };
427 :
428 29 : output_options(false);
429 29 : output_options(true);
430 :
431 29 : Moose::out << "Solver Options:\n"
432 29 : << " See PETSc manual for details" << std::endl;
433 :
434 : // If we get here, we are not running a simulation and should silence petsc's unused options
435 : // warning
436 87 : Moose::PetscSupport::setSinglePetscOption("-options_left", "0");
437 29 : }
438 :
439 : std::vector<std::string>
440 63911 : CommandLine::unusedHitParams(const Parallel::Communicator & comm) const
441 : {
442 : libmesh_parallel_only(comm);
443 :
444 63911 : std::vector<const Entry *> hit_params;
445 63911 : std::vector<std::size_t> use_count;
446 618394 : for (const auto & entry : getEntries())
447 554483 : if (entry.hit_param)
448 : {
449 110121 : hit_params.push_back(&entry);
450 110121 : use_count.push_back(entry.used ? 1 : 0);
451 : }
452 :
453 : mooseAssert(comm.verify(use_count.size()), "Inconsistent HIT params across procs");
454 63911 : comm.sum(use_count);
455 :
456 63911 : std::vector<std::string> unused;
457 174032 : for (const auto i : index_range(use_count))
458 110121 : if (use_count[i] == 0)
459 4 : unused.push_back(hit_params[i]->raw_args[0]);
460 127822 : return unused;
461 63911 : }
462 :
463 : std::list<CommandLine::Entry>::const_iterator
464 5211945 : CommandLine::findCommandLineParam(const std::string & name) const
465 : {
466 5211945 : const auto find_param = _command_line_params.find(name);
467 5211945 : if (find_param == _command_line_params.end())
468 2 : mooseError("CommandLine::findCommandLineParam(): The parameter '",
469 : name,
470 : "' is not a command line parameter");
471 :
472 : // Search for the last thing that matches a switch from this param
473 5211943 : const auto & param = find_param->second;
474 47805110 : for (auto rit = _entries.rbegin(); rit != _entries.rend(); ++rit)
475 88528956 : for (const auto & search_switch : param.metadata.switches)
476 45935789 : if (rit->name == search_switch)
477 467414 : return --(rit.base());
478 :
479 4744529 : return getEntries().end();
480 : }
481 :
482 : std::list<CommandLine::Entry>::iterator
483 5211932 : CommandLine::findCommandLineParam(const std::string & name)
484 : {
485 5211932 : const auto it = std::as_const(*this).findCommandLineParam(name);
486 : // Easy way to go from a const iterator -> non-const iterator
487 10423864 : return _entries.erase(it, it);
488 : }
489 :
490 : std::string
491 636970 : CommandLine::formatEntry(const CommandLine::Entry & entry) const
492 : {
493 636970 : std::stringstream oss;
494 636970 : oss << entry.name;
495 636970 : if (entry.value)
496 : {
497 256394 : const auto q = (*entry.value).find(" ") != std::string::npos ? "'" : "";
498 256394 : oss << *entry.value_separator << q << *entry.value << q;
499 : }
500 1273940 : return oss.str();
501 636970 : }
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