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2272 lines (2026 loc) · 99.9 KB
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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2026 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 "checks.h"
#include "checkers.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 "utils.h"
#include "frontend.h"
#include <algorithm>
#include <cassert>
#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
#include "regex.h"
#include "rule.h"
// xml is used for rules
#include "xml.h"
#include <memory>
#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;
while (std::getline(*files, fileName)) { // next line
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;
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 reportMetric(const std::string &metric) override
{
/* Not used here */
(void) metric;
}
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 (auto 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 = mIgnoredPaths;
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 = mPathNames;
const std::list<FileSettings>& fileSettingsRef = mFileSettings;
// the inputs can only be used exclusively - CmdLineParser should already handle this
assert(!(!pathnamesRef.empty() && !fileSettingsRef.empty()));
if (!fileSettingsRef.empty()) {
std::list<FileSettings> fileSettings;
if (!mSettings.fileFilters.empty()) {
// filter only for the selected filenames from all project files
PathMatch filtermatcher(mSettings.fileFilters, Path::getCurrentPath());
std::copy_if(fileSettingsRef.cbegin(), fileSettingsRef.cend(), std::back_inserter(fileSettings), [&](const FileSettings &fs) {
return filtermatcher.match(fs.filename());
});
if (fileSettings.empty()) {
for (const std::string& f: mSettings.fileFilters)
mLogger.printError("could not find any files matching the filter:" + f);
return false;
}
}
else {
fileSettings = fileSettingsRef;
}
// TODO: de-duplicate
mFileSettings.clear();
frontend::applyLang(fileSettings, mSettings, mEnforcedLang);
// 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;
// Execute recursiveAddFiles() to each given file parameter
// TODO: verbose log which files were ignored?
const PathMatch matcher(ignored, Path::getCurrentPath());
for (const std::string &pathname : pathnamesRef) {
const std::string err = FileLister::recursiveAddFiles(filesResolved, Path::toNativeSeparators(pathname), mSettings.library.markupExtensions(), matcher, mSettings.debugignore);
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;
}
std::list<FileWithDetails> files;
if (!mSettings.fileFilters.empty()) {
files = filterFiles(mSettings.fileFilters, filesResolved);
if (files.empty()) {
for (const std::string& f: mSettings.fileFilters)
mLogger.printError("could not find any files matching the filter:" + f);
return false;
}
}
else {
files = std::move(filesResolved);
}
// de-duplicate files
{
auto it = files.begin();
while (it != files.end()) {
const std::string& absname = it->abspath();
// TODO: log if duplicated files were dropped
files.erase(std::remove_if(std::next(it), files.end(), [&](const FileWithDetails& entry) {
return entry.abspath() == absname;
}), files.end());
++it;
}
}
frontend::applyLang(files, mSettings, mEnforcedLang);
// 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]);
bool xmlOptionProvided = false;
bool outputFormatOptionProvided = false;
// default to --check-level=normal from CLI for now
mSettings.setCheckLevel(Settings::CheckLevel::normal);
// read --debug-lookup early so the option is available for the cppcheck.cfg loading
for (int i = 1; i < argc; i++) {
// Show debug warnings for lookup for configuration files
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;
}
}
}
if (!loadCppcheckCfg())
return Result::Fail;
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 * const c : CheckInstances::get()) {
const std::string& name(c->name());
const std::string info(c->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) {
{
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], "--filesdir") == 0) {
#ifdef FILESDIR
mLogger.printRaw(FILESDIR); // TODO: should not include newline
#endif
return Result::Exit;
}
if (std::strcmp(argv[i], "--version") == 0) {
const std::string version = getVersion();
mLogger.printRaw(version); // TODO: should not include newline
return Result::Exit;
}
}
bool debug = false;
bool inputAsFilter = false; // set by: --file-filter=+
ImportProject::Type projectType = ImportProject::Type::NONE;
ImportProject project;
std::string vsConfig;
std::string platform;
char defaultSign = '\0';
std::vector<std::string> lookupPaths{
Path::getCurrentPath(), // TODO: do we want to look in CWD?
Path::getPathFromFilename(mSettings.exename),
};
bool executorAuto = true;
for (int i = 1; i < argc; i++) {
if (argv[i][0] != '-') {
mPathNames.emplace_back(Path::fromNativeSeparators(Path::removeQuotationMarks(argv[i])));
}
// User define
else 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;
}
// -E
else if (std::strcmp(argv[i], "-E") == 0) {
mSettings.preprocessOnly = true;
mSettings.quiet = true;
}
// -CC
else if (std::strcmp(argv[i], "-CC") == 0) {
mSettings.keepComments = 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);
else if (std::strcmp(argv[i],"--analyze-all-vs-configs") == 0) {
mSettings.analyzeAllVsConfigs = true;
mAnalyzeAllVsConfigsSetOnCmdLine = true;
}
// Check configuration
else if (std::strcmp(argv[i], "--check-config") == 0)
mSettings.checkConfiguration = true;
else if (std::strcmp(argv[i], "--check-headers") == 0)
mSettings.checkHeaders = 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 == "reduced")
level = Settings::CheckLevel::reduced;
else 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::strcmp(argv[i], "--check-unused-templates") == 0)
mSettings.checkUnusedTemplates = 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::strcmp(argv[i], "--clang-tidy") == 0) {
mSettings.clangTidy = true;
}
else if (std::strncmp(argv[i], "--clang-tidy=", 13) == 0) {
mSettings.clangTidy = true;
mSettings.clangTidyExecutable = argv[i] + 13;
}
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;
}
if (endsWith(path, '/'))
path.pop_back();
mSettings.buildDir = std::move(path);
}
else if (std::strcmp(argv[i], "--cpp-header-probe") == 0) {
mSettings.cppHeaderProbe = true;
}
else if (std::strcmp(argv[i], "--debug-analyzerinfo") == 0)
mSettings.debugainfo = true;
else if (std::strcmp(argv[i], "--debug-ast") == 0)
mSettings.debugast = true;
// Show debug warnings for lookup for configuration files
else if (std::strcmp(argv[i], "--debug-clang-output") == 0)
mSettings.debugClangOutput = true;
// Show debug messages for ignored files
else if (std::strcmp(argv[i], "--debug-ignore") == 0)
mSettings.debugignore = true;
else if (std::strcmp(argv[i], "--debug-ipc") == 0)
mSettings.debugipc = true;
// Show --debug output after the first simplifications
else if (std::strcmp(argv[i], "--debug") == 0 ||
std::strcmp(argv[i], "--debug-normal") == 0)
debug = true;
else if (std::strcmp(argv[i], "--debug-lookup") == 0)
continue; // already handled above
else if (std::strncmp(argv[i], "--debug-lookup=", 15) == 0)
continue; // already handled above
// Flag used for various purposes during debugging
else if (std::strcmp(argv[i], "--debug-simplified") == 0)
mSettings.debugSimplified = true;
else if (std::strcmp(argv[i], "--debug-symdb") == 0)
mSettings.debugsymdb = true;
// Show template information
else if (std::strcmp(argv[i], "--debug-template") == 0)
mSettings.debugtemplate = true;
else if (std::strcmp(argv[i], "--debug-valueflow") == 0)
mSettings.debugvalueflow = 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::strcmp(argv[i], "--emit-duplicates") == 0)
mSettings.emitDuplicates = 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;
}
}
else if (std::strncmp(argv[i], "--exitcode-suppress=", 20) == 0) {
const std::string suppression = argv[i]+20;
const std::string errmsg(mSuppressions.nofail.addSuppressionLine(suppression));
if (!errmsg.empty()) {
mLogger.printError(errmsg);
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 if (std::strcmp(filter, "+") == 0) {
inputAsFilter = true;
} 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;
mSettings.maxConfigsOption = Settings::maxConfigsNotAssigned;
}
else if (std::strcmp(argv[i], "--fsigned-char") == 0)
defaultSign = 's';
else if (std::strcmp(argv[i], "--funsigned-char") == 0)
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()) {
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")
mEnforcedLang = Standards::Language::C;
else if (str == "c++")
mEnforcedLang = Standards::Language::CPP;
else {
mLogger.printError("unknown language '" + str + "' enforced.");
return Result::Fail;
}
}
// --library
else if (std::strncmp(argv[i], "--library=", 10) == 0) {
std::vector<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.maxConfigsOption = tmp;
mSettings.force = false;
}
// max ctu depth
else if (std::strncmp(argv[i], "--max-ctu-depth=", 16) == 0) {
int temp = 0;
if (!parseNumberArg(argv[i], 16, temp))