/*

* Cppcheck - A tool for static C/C++ code analysis

* Copyright (C) 2007-2024 Cppcheck team.

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <http://www.gnu.org/licenses/>.

*/

#include "cmdlineparser.h"

#include "addoninfo.h"

#include "check.h"

#include "color.h"

#include "config.h"

#include "cppcheck.h"

#include "errorlogger.h"

#include "errortypes.h"

#include "filelister.h"

#include "filesettings.h"

#include "importproject.h"

#include "library.h"

#include "path.h"

#include "pathmatch.h"

#include "platform.h"

#include "settings.h"

#include "standards.h"

#include "suppressions.h"

#include "timer.h"

#include "utils.h"

#include <algorithm>

#include <cassert>

#include <climits>

#include <cstdio>

#include <cstdlib> // EXIT_FAILURE

#include <cstring>

#include <fstream>

#include <iostream>

#include <iterator>

#include <list>

#include <set>

#include <sstream>

#include <unordered_set>

#include <utility>

#ifdef HAVE_RULES

// xml is used for rules

#include "xml.h"

#endif

static bool addFilesToList(const std::string& fileList, std::vector<std::string>& pathNames)

{

std::istream *files;

std::ifstream infile;

if (fileList == "-") { // read from stdin

files = &std::cin;

} else {

infile.open(fileList);

if (!infile.is_open())

return false;

files = &infile;

}

std::string fileName;

// cppcheck-suppress accessMoved - FP

while (std::getline(*files, fileName)) { // next line

// cppcheck-suppress accessMoved - FP

if (!fileName.empty()) {

pathNames.emplace_back(std::move(fileName));

}

}

return true;

}

static bool addIncludePathsToList(const std::string& fileList, std::list<std::string>& pathNames)

{

std::ifstream files(fileList);

if (files) {

std::string pathName;

// cppcheck-suppress accessMoved - FP

while (std::getline(files, pathName)) { // next line

if (!pathName.empty()) {

pathName = Path::removeQuotationMarks(std::move(pathName));

pathName = Path::fromNativeSeparators(std::move(pathName));

// If path doesn't end with / or \, add it

if (!endsWith(pathName, '/'))

pathName += '/';

pathNames.emplace_back(std::move(pathName));

}

}

return true;

}

return false;

}

static bool addPathsToSet(const std::string& fileName, std::set<std::string>& set)

{

std::list<std::string> templist;

if (!addIncludePathsToList(fileName, templist))

return false;

set.insert(templist.cbegin(), templist.cend());

return true;

}

namespace {

class XMLErrorMessagesLogger : public ErrorLogger

{

void reportOut(const std::string & outmsg, Color /*c*/ = Color::Reset) override

{

std::cout << outmsg << std::endl;

}

void reportErr(const ErrorMessage &msg) override

{

reportOut(msg.toXML());

}

void reportProgress(const std::string & /*filename*/, const char /*stage*/[], const std::size_t /*value*/) override

{}

};

}

CmdLineParser::CmdLineParser(CmdLineLogger &logger, Settings &settings, Suppressions &suppressions)

: mLogger(logger)

, mSettings(settings)

, mSuppressions(suppressions)

{}

bool CmdLineParser::fillSettingsFromArgs(int argc, const char* const argv[])

{

const Result result = parseFromArgs(argc, argv);

switch (result) {

case Result::Success:

break;

case Result::Exit:

Settings::terminate();

return true;

case Result::Fail:

return false;

}

// Libraries must be loaded before FileLister is executed to ensure markup files will be

// listed properly.

if (!loadLibraries(mSettings))

return false;

if (!loadAddons(mSettings))

return false;

// Check that all include paths exist

{

for (std::list<std::string>::const_iterator iter = mSettings.includePaths.cbegin();

iter != mSettings.includePaths.cend();

) {

const std::string path(Path::toNativeSeparators(*iter));

if (Path::isDirectory(path))

++iter;

else {

// TODO: this bypasses the template format and other settings

// If the include path is not found, warn user and remove the non-existing path from the list.

if (mSettings.severity.isEnabled(Severity::information))

std::cout << "(information) Couldn't find path given by -I '" << path << '\'' << std::endl;

iter = mSettings.includePaths.erase(iter);

}

}

}

// Output a warning for the user if he tries to exclude headers

const std::vector<std::string>& ignored = getIgnoredPaths();

const bool warn = std::any_of(ignored.cbegin(), ignored.cend(), [](const std::string& i) {

return Path::isHeader(i);

});

if (warn) {

mLogger.printMessage("filename exclusion does not apply to header (.h and .hpp) files.");

mLogger.printMessage("Please use --suppress for ignoring results from the header files.");

}

const std::vector<std::string>& pathnamesRef = getPathNames();

const std::list<FileSettings>& fileSettingsRef = getFileSettings();

// the inputs can only be used exclusively - CmdLineParser should already handle this

assert(!(!pathnamesRef.empty() && !fileSettingsRef.empty()));

if (!fileSettingsRef.empty()) {

// TODO: de-duplicate

std::list<FileSettings> fileSettings;

if (!mSettings.fileFilters.empty()) {

// filter only for the selected filenames from all project files

std::copy_if(fileSettingsRef.cbegin(), fileSettingsRef.cend(), std::back_inserter(fileSettings), [&](const FileSettings &fs) {

return matchglobs(mSettings.fileFilters, fs.filename());

});

if (fileSettings.empty()) {

mLogger.printError("could not find any files matching the filter.");

return false;

}

}

else {

fileSettings = fileSettingsRef;

}

mFileSettings.clear();

// sort the markup last

std::copy_if(fileSettings.cbegin(), fileSettings.cend(), std::back_inserter(mFileSettings), [&](const FileSettings &fs) {

return !mSettings.library.markupFile(fs.filename()) || !mSettings.library.processMarkupAfterCode(fs.filename());

});

std::copy_if(fileSettings.cbegin(), fileSettings.cend(), std::back_inserter(mFileSettings), [&](const FileSettings &fs) {

return mSettings.library.markupFile(fs.filename()) && mSettings.library.processMarkupAfterCode(fs.filename());

});

if (mFileSettings.empty()) {

mLogger.printError("could not find or open any of the paths given.");

return false;

}

}

if (!pathnamesRef.empty()) {

std::list<FileWithDetails> filesResolved;

// TODO: this needs to be inlined into PathMatch as it depends on the underlying filesystem

#if defined(_WIN32)

// For Windows we want case-insensitive path matching

const bool caseSensitive = false;

#else

const bool caseSensitive = true;

#endif

// Execute recursiveAddFiles() to each given file parameter

// TODO: verbose log which files were ignored?

const PathMatch matcher(ignored, caseSensitive);

for (const std::string &pathname : pathnamesRef) {

const std::string err = FileLister::recursiveAddFiles(filesResolved, Path::toNativeSeparators(pathname), mSettings.library.markupExtensions(), matcher);

if (!err.empty()) {

// TODO: bail out?

mLogger.printMessage(err);

}

}

if (filesResolved.empty()) {

mLogger.printError("could not find or open any of the paths given.");

// TODO: PathMatch should provide the information if files were ignored

if (!ignored.empty())

mLogger.printMessage("Maybe all paths were ignored?");

return false;

}

// de-duplicate files

{

auto it = filesResolved.begin();

while (it != filesResolved.end()) {

const std::string& name = it->path();

// TODO: log if duplicated files were dropped

filesResolved.erase(std::remove_if(std::next(it), filesResolved.end(), [&](const FileWithDetails& entry) {

return entry.path() == name;

}), filesResolved.end());

++it;

}

}

std::list<FileWithDetails> files;

if (!mSettings.fileFilters.empty()) {

std::copy_if(filesResolved.cbegin(), filesResolved.cend(), std::inserter(files, files.end()), [&](const FileWithDetails& entry) {

return matchglobs(mSettings.fileFilters, entry.path());

});

if (files.empty()) {

mLogger.printError("could not find any files matching the filter.");

return false;

}

}

else {

files = std::move(filesResolved);

}

// sort the markup last

std::copy_if(files.cbegin(), files.cend(), std::inserter(mFiles, mFiles.end()), [&](const FileWithDetails& entry) {

return !mSettings.library.markupFile(entry.path()) || !mSettings.library.processMarkupAfterCode(entry.path());

});

std::copy_if(files.cbegin(), files.cend(), std::inserter(mFiles, mFiles.end()), [&](const FileWithDetails& entry) {

return mSettings.library.markupFile(entry.path()) && mSettings.library.processMarkupAfterCode(entry.path());

});

if (mFiles.empty()) {

mLogger.printError("could not find or open any of the paths given.");

return false;

}

}

return true;

}

// TODO: normalize/simplify/native all path parameters

// TODO: error out on all missing given files/paths

CmdLineParser::Result CmdLineParser::parseFromArgs(int argc, const char* const argv[])

{

mSettings.exename = Path::getCurrentExecutablePath(argv[0]);

// default to --check-level=normal from CLI for now

mSettings.setCheckLevel(Settings::CheckLevel::normal);

if (argc <= 1) {

printHelp();

return Result::Exit;

}

// check for exclusive options

for (int i = 1; i < argc; i++) {

// documentation..

if (std::strcmp(argv[i], "--doc") == 0) {

std::ostringstream doc;

// Get documentation..

for (const Check * it : Check::instances()) {

const std::string& name(it->name());

const std::string info(it->classInfo());

if (!name.empty() && !info.empty())

doc << "## " << name << " ##\n"

<< info << "\n";

}

mLogger.printRaw(doc.str());

return Result::Exit;

}

// print all possible error messages..

if (std::strcmp(argv[i], "--errorlist") == 0) {

if (!loadCppcheckCfg())

return Result::Fail;

{

XMLErrorMessagesLogger xmlLogger;

std::cout << ErrorMessage::getXMLHeader(mSettings.cppcheckCfgProductName, 2);

CppCheck::getErrorMessages(xmlLogger);

std::cout << ErrorMessage::getXMLFooter(2) << std::endl;

}

return Result::Exit;

}

// Print help

if (std::strcmp(argv[i], "-h") == 0 || std::strcmp(argv[i], "--help") == 0) {

printHelp();

return Result::Exit;

}

if (std::strcmp(argv[i], "--version") == 0) {

if (!loadCppcheckCfg())

return Result::Fail;

const std::string version = getVersion();

mLogger.printRaw(version);

return Result::Exit;

}

}

bool def = false;

bool maxconfigs = false;

ImportProject project;

bool executorAuto = true;

for (int i = 1; i < argc; i++) {

if (argv[i][0] == '-') {

// User define

if (std::strncmp(argv[i], "-D", 2) == 0) {

std::string define;

// "-D define"

if (std::strcmp(argv[i], "-D") == 0) {

++i;

if (i >= argc || argv[i][0] == '-') {

mLogger.printError("argument to '-D' is missing.");

return Result::Fail;

}

define = argv[i];

}

// "-Ddefine"

else {

define = 2 + argv[i];

}

// No "=", append a "=1"

if (define.find('=') == std::string::npos)

define += "=1";

if (!mSettings.userDefines.empty())

mSettings.userDefines += ";";

mSettings.userDefines += define;

def = true;

}

// -E

else if (std::strcmp(argv[i], "-E") == 0) {

mSettings.preprocessOnly = true;

mSettings.quiet = true;

}

// Include paths

else if (std::strncmp(argv[i], "-I", 2) == 0) {

std::string path;

// "-I path/"

if (std::strcmp(argv[i], "-I") == 0) {

++i;

if (i >= argc || argv[i][0] == '-') {

mLogger.printError("argument to '-I' is missing.");

return Result::Fail;

}

path = argv[i];

}

// "-Ipath/"

else {

path = 2 + argv[i];

}

path = Path::removeQuotationMarks(std::move(path));

path = Path::fromNativeSeparators(std::move(path));

// If path doesn't end with / or \, add it

if (!endsWith(path,'/'))

path += '/';

mSettings.includePaths.emplace_back(std::move(path));

}

// User undef

else if (std::strncmp(argv[i], "-U", 2) == 0) {

std::string undef;

// "-U undef"

if (std::strcmp(argv[i], "-U") == 0) {

++i;

if (i >= argc || argv[i][0] == '-') {

mLogger.printError("argument to '-U' is missing.");

return Result::Fail;

}

undef = argv[i];

}

// "-Uundef"

else {

undef = 2 + argv[i];

}

mSettings.userUndefs.insert(std::move(undef));

}

else if (std::strncmp(argv[i], "--addon=", 8) == 0)

mSettings.addons.emplace(argv[i]+8);

else if (std::strncmp(argv[i],"--addon-python=", 15) == 0)

mSettings.addonPython.assign(argv[i]+15);

// Check configuration

else if (std::strcmp(argv[i], "--check-config") == 0)

mSettings.checkConfiguration = true;

// Check level

else if (std::strncmp(argv[i], "--check-level=", 14) == 0) {

Settings::CheckLevel level = Settings::CheckLevel::normal;

const std::string level_s(argv[i] + 14);

if (level_s == "normal")

level = Settings::CheckLevel::normal;

else if (level_s == "exhaustive")

level = Settings::CheckLevel::exhaustive;

else {

mLogger.printError("unknown '--check-level' value '" + level_s + "'.");

return Result::Fail;

}

mSettings.setCheckLevel(level);

}

// Check library definitions

else if (std::strcmp(argv[i], "--check-library") == 0) {

mSettings.checkLibrary = true;

}

else if (std::strncmp(argv[i], "--check-version=", 16) == 0) {

if (!loadCppcheckCfg())

return Result::Fail;

const std::string actualVersion = getVersion();

const std::string wantedVersion = argv[i] + 16;

if (actualVersion != wantedVersion) {

mLogger.printError("--check-version check failed. Aborting.");

return Result::Fail;

}

}

else if (std::strncmp(argv[i], "--checkers-report=", 18) == 0)

mSettings.checkersReportFilename = argv[i] + 18;

else if (std::strncmp(argv[i], "--checks-max-time=", 18) == 0) {

if (!parseNumberArg(argv[i], 18, mSettings.checksMaxTime, true))

return Result::Fail;

}

else if (std::strcmp(argv[i], "--clang") == 0) {

mSettings.clang = true;

}

else if (std::strncmp(argv[i], "--clang=", 8) == 0) {

mSettings.clang = true;

mSettings.clangExecutable = argv[i] + 8;

}

else if (std::strncmp(argv[i], "--config-exclude=",17) ==0) {

mSettings.configExcludePaths.insert(Path::fromNativeSeparators(argv[i] + 17));

}

else if (std::strncmp(argv[i], "--config-excludes-file=", 23) == 0) {

// open this file and read every input file (1 file name per line)

const std::string cfgExcludesFile(23 + argv[i]);

if (!addPathsToSet(cfgExcludesFile, mSettings.configExcludePaths)) {

mLogger.printError("unable to open config excludes file at '" + cfgExcludesFile + "'");

return Result::Fail;

}

}

else if (std::strncmp(argv[i], "--cppcheck-build-dir=", 21) == 0) {

std::string path = Path::fromNativeSeparators(argv[i] + 21);

if (path.empty()) {

mLogger.printError("no path has been specified for --cppcheck-build-dir");

return Result::Fail;

}

mSettings.buildDir = std::move(path);

if (endsWith(mSettings.buildDir, '/'))

mSettings.buildDir.pop_back();

}

else if (std::strcmp(argv[i], "--cpp-header-probe") == 0) {

mSettings.cppHeaderProbe = true;

}

// Show --debug output after the first simplifications

else if (std::strcmp(argv[i], "--debug") == 0 ||

std::strcmp(argv[i], "--debug-normal") == 0)

mSettings.debugnormal = true;

// Show debug warnings for lookup for configuration files

else if (std::strcmp(argv[i], "--debug-lookup") == 0)

mSettings.debuglookup = true;

else if (std::strncmp(argv[i], "--debug-lookup=", 15) == 0) {

const std::string lookup = argv[i] + 15;

if (lookup == "all")

mSettings.debuglookup = true;

else if (lookup == "addon")

mSettings.debuglookupAddon = true;

else if (lookup == "config")

mSettings.debuglookupConfig = true;

else if (lookup == "library")

mSettings.debuglookupLibrary = true;

else if (lookup == "platform")

mSettings.debuglookupPlatform = true;

else

{

mLogger.printError("unknown lookup '" + lookup + "'");

return Result::Fail;

}

}

// Flag used for various purposes during debugging

else if (std::strcmp(argv[i], "--debug-simplified") == 0)

mSettings.debugSimplified = true;

// Show template information

else if (std::strcmp(argv[i], "--debug-template") == 0)

mSettings.debugtemplate = true;

// Show debug warnings

else if (std::strcmp(argv[i], "--debug-warnings") == 0)

mSettings.debugwarnings = true;

else if (std::strncmp(argv[i], "--disable=", 10) == 0) {

const std::string errmsg = mSettings.removeEnabled(argv[i] + 10);

if (!errmsg.empty()) {

mLogger.printError(errmsg);

return Result::Fail;

}

}

// dump cppcheck data

else if (std::strcmp(argv[i], "--dump") == 0)

mSettings.dump = true;

else if (std::strncmp(argv[i], "--enable=", 9) == 0) {

const std::string enable_arg = argv[i] + 9;

const std::string errmsg = mSettings.addEnabled(enable_arg);

if (!errmsg.empty()) {

mLogger.printError(errmsg);

return Result::Fail;

}

// when "style" is enabled, also enable "warning", "performance" and "portability"

if (enable_arg.find("style") != std::string::npos) {

mSettings.addEnabled("warning");

mSettings.addEnabled("performance");

mSettings.addEnabled("portability");

}

}

// --error-exitcode=1

else if (std::strncmp(argv[i], "--error-exitcode=", 17) == 0) {

if (!parseNumberArg(argv[i], 17, mSettings.exitCode))

return Result::Fail;

}

// Exception handling inside cppcheck client

else if (std::strcmp(argv[i], "--exception-handling") == 0) {

#if defined(USE_WINDOWS_SEH) || defined(USE_UNIX_SIGNAL_HANDLING)

mSettings.exceptionHandling = true;

#else

mLogger.printError("Option --exception-handling is not supported since Cppcheck has not been built with any exception handling enabled.");

return Result::Fail;

#endif

}

// Exception handling inside cppcheck client

else if (std::strncmp(argv[i], "--exception-handling=", 21) == 0) {

#if defined(USE_WINDOWS_SEH) || defined(USE_UNIX_SIGNAL_HANDLING)

const std::string exceptionOutfilename = argv[i] + 21;

if (exceptionOutfilename != "stderr" && exceptionOutfilename != "stdout") {

mLogger.printError("invalid '--exception-handling' argument");

return Result::Fail;

}

mSettings.exceptionHandling = true;

mSettings.exceptionOutput = (exceptionOutfilename == "stderr") ? stderr : stdout;

#else

mLogger.printError("Option --exception-handling is not supported since Cppcheck has not been built with any exception handling enabled.");

return Result::Fail;

#endif

}

else if (std::strncmp(argv[i], "--executor=", 11) == 0) {

const std::string type = 11 + argv[i];

if (type == "auto") {

executorAuto = true;

mSettings.executor = Settings::defaultExecutor();

}

else if (type == "thread") {

#if defined(HAS_THREADING_MODEL_THREAD)

executorAuto = false;

mSettings.executor = Settings::ExecutorType::Thread;

#else

mLogger.printError("executor type 'thread' cannot be used as Cppcheck has not been built with a respective threading model.");

return Result::Fail;

#endif

}

else if (type == "process") {

#if defined(HAS_THREADING_MODEL_FORK)

executorAuto = false;

mSettings.executor = Settings::ExecutorType::Process;

#else

mLogger.printError("executor type 'process' cannot be used as Cppcheck has not been built with a respective threading model.");

return Result::Fail;

#endif

}

else {

mLogger.printError("unknown executor: '" + type + "'.");

return Result::Fail;

}

}

// Filter errors

else if (std::strncmp(argv[i], "--exitcode-suppressions=", 24) == 0) {

// exitcode-suppressions=filename.txt

std::string filename = 24 + argv[i];

std::ifstream f(filename);

if (!f.is_open()) {

mLogger.printError("couldn't open the file: \"" + filename + "\".");

return Result::Fail;

}

const std::string errmsg(mSuppressions.nofail.parseFile(f));

if (!errmsg.empty()) {

mLogger.printError(errmsg);

return Result::Fail;

}

}

// use a file filter

else if (std::strncmp(argv[i], "--file-filter=", 14) == 0) {

const char *filter = argv[i] + 14;

if (std::strcmp(filter, "-") == 0) {

if (!addFilesToList(filter, mSettings.fileFilters)) {

mLogger.printError("Failed: --file-filter=-");

return Result::Fail;

}

} else {

mSettings.fileFilters.emplace_back(filter);

}

}

// file list specified

else if (std::strncmp(argv[i], "--file-list=", 12) == 0) {

// open this file and read every input file (1 file name per line)

const std::string fileList = argv[i] + 12;

if (!addFilesToList(fileList, mPathNames)) {

mLogger.printError("couldn't open the file: \"" + fileList + "\".");

return Result::Fail;

}

}

// Force checking of files that have "too many" configurations

else if (std::strcmp(argv[i], "-f") == 0 || std::strcmp(argv[i], "--force") == 0)

mSettings.force = true;

else if (std::strcmp(argv[i], "--fsigned-char") == 0)

mSettings.platform.defaultSign = 's';

else if (std::strcmp(argv[i], "--funsigned-char") == 0)

mSettings.platform.defaultSign = 'u';

// Ignored paths

else if (std::strncmp(argv[i], "-i", 2) == 0) {

std::string path;

// "-i path/"

if (std::strcmp(argv[i], "-i") == 0) {

++i;

if (i >= argc || argv[i][0] == '-') {

mLogger.printError("argument to '-i' is missing.");

return Result::Fail;

}

path = argv[i];

}

// "-ipath/"

else {

path = 2 + argv[i];

}

if (!path.empty()) {

path = Path::removeQuotationMarks(std::move(path));

path = Path::simplifyPath(std::move(path));

// TODO: this only works when it exists

if (Path::isDirectory(path)) {

// If directory name doesn't end with / or \, add it

if (!endsWith(path, '/'))

path += '/';

}

mIgnoredPaths.emplace_back(std::move(path));

}

}

else if (std::strncmp(argv[i], "--include=", 10) == 0) {

mSettings.userIncludes.emplace_back(Path::fromNativeSeparators(argv[i] + 10));

}

else if (std::strncmp(argv[i], "--includes-file=", 16) == 0) {

// open this file and read every input file (1 file name per line)

const std::string includesFile(16 + argv[i]);

if (!addIncludePathsToList(includesFile, mSettings.includePaths)) {

mLogger.printError("unable to open includes file at '" + includesFile + "'");

return Result::Fail;

}

}

// Inconclusive checking

else if (std::strcmp(argv[i], "--inconclusive") == 0)

mSettings.certainty.enable(Certainty::inconclusive);

// Enables inline suppressions.

else if (std::strcmp(argv[i], "--inline-suppr") == 0)

mSettings.inlineSuppressions = true;

// Checking threads

else if (std::strncmp(argv[i], "-j", 2) == 0) {

std::string numberString;

// "-j 3"

if (std::strcmp(argv[i], "-j") == 0) {

++i;

if (i >= argc || argv[i][0] == '-') {

mLogger.printError("argument to '-j' is missing.");

return Result::Fail;

}

numberString = argv[i];

}

// "-j3"

else

numberString = argv[i]+2;

unsigned int tmp;

std::string err;

if (!strToInt(numberString, tmp, &err)) {

mLogger.printError("argument to '-j' is not valid - " + err + ".");

return Result::Fail;

}

if (tmp == 0) {

// TODO: implement get CPU logical core count and use that.

// Usually, -j 0 would mean "use all available cores," but

// if we get a 0, we just stall and don't do any work.

mLogger.printError("argument for '-j' must be greater than 0.");

return Result::Fail;

}

if (tmp > 1024) {

// Almost nobody has 1024 logical cores, but somebody out

// there does.

mLogger.printError("argument for '-j' is allowed to be 1024 at max.");

return Result::Fail;

}

mSettings.jobs = tmp;

}

else if (std::strncmp(argv[i], "-l", 2) == 0) {

#ifdef HAS_THREADING_MODEL_FORK

std::string numberString;

// "-l 3"

if (std::strcmp(argv[i], "-l") == 0) {

++i;

if (i >= argc || argv[i][0] == '-') {

mLogger.printError("argument to '-l' is missing.");

return Result::Fail;

}

numberString = argv[i];

}

// "-l3"

else

numberString = argv[i]+2;

int tmp;

std::string err;

if (!strToInt(numberString, tmp, &err)) {

mLogger.printError("argument to '-l' is not valid - " + err + ".");

return Result::Fail;

}

mSettings.loadAverage = tmp;

#else

mLogger.printError("Option -l cannot be used as Cppcheck has not been built with fork threading model.");

return Result::Fail;

#endif

}

// Enforce language (--language=, -x)

else if (std::strncmp(argv[i], "--language=", 11) == 0 || std::strcmp(argv[i], "-x") == 0) {

std::string str;

if (argv[i][2]) {

str = argv[i]+11;

} else {

i++;

if (i >= argc || argv[i][0] == '-') {

mLogger.printError("no language given to '-x' option.");

return Result::Fail;

}

str = argv[i];

}

if (str == "c")

mSettings.enforcedLang = Standards::Language::C;

else if (str == "c++")

mSettings.enforcedLang = Standards::Language::CPP;

else {

mLogger.printError("unknown language '" + str + "' enforced.");

return Result::Fail;

}

}

// --library

else if (std::strncmp(argv[i], "--library=", 10) == 0) {

std::list<std::string> libs = splitString(argv[i] + 10, ',');

for (auto& l : libs) {

if (l.empty()) {

mLogger.printError("empty library specified.");

return Result::Fail;

}

mSettings.libraries.emplace_back(std::move(l));

}

}

// Set maximum number of #ifdef configurations to check

else if (std::strncmp(argv[i], "--max-configs=", 14) == 0) {

int tmp;

if (!parseNumberArg(argv[i], 14, tmp))

return Result::Fail;

if (tmp < 1) {

mLogger.printError("argument to '--max-configs=' must be greater than 0.");

return Result::Fail;

}

mSettings.maxConfigs = tmp;

mSettings.force = false;

maxconfigs = true;

}

// max ctu depth

else if (std::strncmp(argv[i], "--max-ctu-depth=", 16) == 0) {

int temp = 0;

if (!parseNumberArg(argv[i], 16, temp))

return Result::Fail;

if (temp > 10) {

mLogger.printMessage("--max-ctu-depth is being capped at 10. This limitation will be removed in a future Cppcheck version.");

temp = 10;

}

mSettings.maxCtuDepth = temp;

}

// undocumented option for usage in Python tests to indicate that no build dir should be injected

else if (std::strcmp(argv[i], "--no-cppcheck-build-dir") == 0) {

mSettings.buildDir.clear();

}

else if (std::strcmp(argv[i], "--no-cpp-header-probe") == 0) {

mSettings.cppHeaderProbe = false;

}

// Write results in file

else if (std::strncmp(argv[i], "--output-file=", 14) == 0)

mSettings.outputFile = Path::simplifyPath(argv[i] + 14);

else if (std::strncmp(argv[i], "--output-format=", 16) == 0) {

const std::string format = argv[i] + 16;

if (format == "sarif")

mSettings.outputFormat = Settings::OutputFormat::sarif;

else if (format == "xml")

mSettings.outputFormat = Settings::OutputFormat::xml;

else {

mLogger.printError("argument to '--output-format=' must be 'sarif' or 'xml'.");

return Result::Fail;

}

mSettings.xml = (mSettings.outputFormat == Settings::OutputFormat::xml);

}

// Experimental: limit execution time for extended valueflow analysis. basic valueflow analysis

// is always executed.

else if (std::strncmp(argv[i], "--performance-valueflow-max-time=", 33) == 0) {

if (!parseNumberArg(argv[i], 33, mSettings.vfOptions.maxTime, true))

return Result::Fail;

}

else if (std::strncmp(argv[i], "--performance-valueflow-max-if-count=", 37) == 0) {

if (!parseNumberArg(argv[i], 37, mSettings.vfOptions.maxIfCount, true))

return Result::Fail;

}

// Specify platform

else if (std::strncmp(argv[i], "--platform=", 11) == 0) {

const std::string platform(11+argv[i]);

std::string errstr;

const std::vector<std::string> paths = {argv[0]};

if (!mSettings.platform.set(platform, errstr, paths, mSettings.debuglookup || mSettings.debuglookupPlatform)) {

mLogger.printError(errstr);

return Result::Fail;

}

// TODO: remove

// these are loaded via external files and thus have Settings::PlatformFile set instead.

// override the type so they behave like the regular platforms.

if (platform == "unix32-unsigned")

mSettings.platform.type = Platform::Type::Unix32;

else if (platform == "unix64-unsigned")

mSettings.platform.type = Platform::Type::Unix64;

}

// Write results in results.plist

else if (std::strncmp(argv[i], "--plist-output=", 15) == 0) {

mSettings.outputFormat = Settings::OutputFormat::plist;

mSettings.plistOutput = Path::simplifyPath(argv[i] + 15);

if (mSettings.plistOutput.empty())

mSettings.plistOutput = ".";

const std::string plistOutput = Path::toNativeSeparators(mSettings.plistOutput);

if (!Path::isDirectory(plistOutput)) {

std::string message("plist folder does not exist: '");

message += plistOutput;

message += "'.";

mLogger.printError(message);

return Result::Fail;

}

if (!endsWith(mSettings.plistOutput,'/'))

mSettings.plistOutput += '/';

}

// Special Cppcheck Premium options

else if ((std::strncmp(argv[i], "--premium=", 10) == 0 || std::strncmp(argv[i], "--premium-", 10) == 0) && isCppcheckPremium()) {

// valid options --premium=..

const std::set<std::string> valid{

"autosar",

"cert-c-2016",