cppcheck/cli/cmdlineparser.cpp

1406 lines
65 KiB
C++

/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2023 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 "check.h"
#include "config.h"
#include "cppcheckexecutor.h"
#include "errorlogger.h"
#include "errortypes.h"
#include "filelister.h"
#include "importproject.h"
#include "path.h"
#include "platform.h"
#include "settings.h"
#include "standards.h"
#include "suppressions.h"
#include "timer.h"
#include "utils.h"
#include <algorithm>
#include <climits>
#include <cstdio>
#include <cstdlib> // EXIT_FAILURE
#include <cstring>
#include <fstream> // IWYU pragma: keep
#include <iostream>
#include <iterator>
#include <list>
#include <set>
#include <sstream> // IWYU pragma: keep
#include <stdexcept>
#include <unordered_set>
#include <utility>
#ifdef HAVE_RULES
// xml is used for rules
#include <tinyxml2.h>
#endif
#ifdef __linux__
#include <unistd.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;
}
if (files && *files) {
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(pathName);
pathName = Path::fromNativeSeparators(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;
}
CmdLineParser::CmdLineParser(Settings &settings, Suppressions &suppressions, Suppressions &suppressionsNoFail)
: mSettings(settings)
, mSuppressions(suppressions)
, mSuppressionsNoFail(suppressionsNoFail)
, mShowHelp(false)
, mShowVersion(false)
, mShowErrorMessages(false)
, mExitAfterPrint(false)
{}
void CmdLineParser::printMessage(const std::string &message)
{
std::cout << "cppcheck: " << message << std::endl;
}
void CmdLineParser::printError(const std::string &message)
{
printMessage("error: " + message);
}
#if defined(_WIN64) || defined(_WIN32)
bool CmdLineParser::SHOW_DEF_PLATFORM_MSG = true;
#endif
// TODO: normalize/simplify/native all path parameters
// TODO: error out on all missing given files/paths
bool CmdLineParser::parseFromArgs(int argc, const char* const argv[])
{
#if defined(_WIN64) || defined(_WIN32)
bool default_platform = true;
#endif
bool def = false;
bool maxconfigs = false;
mSettings.exename = Path::getCurrentExecutablePath(argv[0]);
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] == '-') {
printError("argument to '-D' is missing.");
return false;
}
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] == '-') {
printError("argument to '-I' is missing.");
return false;
}
path = argv[i];
}
// "-Ipath/"
else {
path = 2 + argv[i];
}
path = Path::removeQuotationMarks(path);
path = Path::fromNativeSeparators(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] == '-') {
printError("argument to '-U' is missing.");
return false;
}
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 code exhaustively
else if (std::strcmp(argv[i], "--check-level=exhaustive") == 0)
mSettings.setCheckLevelExhaustive();
// Check code with normal analysis
else if (std::strcmp(argv[i], "--check-level=normal") == 0)
mSettings.setCheckLevelNormal();
// Check library definitions
else if (std::strcmp(argv[i], "--check-library") == 0) {
mSettings.checkLibrary = true;
}
else if (std::strncmp(argv[i], "--checks-max-time=", 18) == 0) {
if (!parseNumberArg(argv[i], 18, mSettings.checksMaxTime, true))
return false;
}
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)) {
printError("unable to open config excludes file at '" + cfgExcludesFile + "'");
return false;
}
}
else if (std::strncmp(argv[i], "--cppcheck-build-dir=", 21) == 0) {
// TODO: bail out when the folder does not exist? will silently do nothing
mSettings.buildDir = Path::fromNativeSeparators(argv[i] + 21);
if (endsWith(mSettings.buildDir, '/'))
mSettings.buildDir.pop_back();
}
// 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;
// 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()) {
printError(errmsg);
return false;
}
}
// documentation..
else 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";
}
std::cout << doc.str();
mExitAfterPrint = true;
return true;
}
// 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()) {
printError(errmsg);
return false;
}
// 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");
}
if (enable_arg.find("information") != std::string::npos) {
mSettings.addEnabled("missingInclude");
printMessage("'--enable=information' will no longer implicitly enable 'missingInclude' starting with 2.16. Please enable it explicitly if you require it.");
}
}
// print all possible error messages..
else if (std::strcmp(argv[i], "--errorlist") == 0) {
mShowErrorMessages = true;
mSettings.xml = true;
mExitAfterPrint = true;
}
// --error-exitcode=1
else if (std::strncmp(argv[i], "--error-exitcode=", 17) == 0) {
if (!parseNumberArg(argv[i], 17, mSettings.exitCode))
return false;
}
// Exception handling inside cppcheck client
else if (std::strcmp(argv[i], "--exception-handling") == 0) {
mSettings.exceptionHandling = true;
}
// Exception handling inside cppcheck client
else if (std::strncmp(argv[i], "--exception-handling=", 21) == 0) {
const std::string exceptionOutfilename = argv[i] + 21;
if (exceptionOutfilename != "stderr" && exceptionOutfilename != "stdout") {
printError("invalid '--exception-handling' argument");
return false;
}
mSettings.exceptionHandling = true;
CppCheckExecutor::setExceptionOutput((exceptionOutfilename == "stderr") ? stderr : stdout);
}
// 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()) {
printError("couldn't open the file: \"" + filename + "\".");
return false;
}
const std::string errmsg(mSuppressionsNoFail.parseFile(f));
if (!errmsg.empty()) {
printError(errmsg);
return false;
}
}
// use a file filter
else if (std::strncmp(argv[i], "--file-filter=", 14) == 0)
mSettings.fileFilters.emplace_back(argv[i] + 14);
// 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)) {
printError("couldn't open the file: \"" + fileList + "\".");
return false;
}
}
// 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;
// Print help
else if (std::strcmp(argv[i], "-h") == 0 || std::strcmp(argv[i], "--help") == 0) {
mPathNames.clear();
mShowHelp = true;
mExitAfterPrint = true;
break;
}
// 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] == '-') {
printError("argument to '-i' is missing.");
return false;
}
path = argv[i];
}
// "-ipath/"
else {
path = 2 + argv[i];
}
if (!path.empty()) {
path = Path::removeQuotationMarks(path);
path = Path::fromNativeSeparators(path);
path = Path::simplifyPath(path);
if (FileLister::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)) {
printError("unable to open includes file at '" + includesFile + "'");
return false;
}
}
// 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] == '-') {
printError("argument to '-j' is missing.");
return false;
}
numberString = argv[i];
}
// "-j3"
else
numberString = argv[i]+2;
unsigned int tmp;
std::string err;
if (!strToInt(numberString, tmp, &err)) {
printError("argument to '-j' is not valid - " + err + ".");
return false;
}
if (tmp > 10000) {
// This limit is here just to catch typos. If someone has
// need for more jobs, this value should be increased.
printError("argument for '-j' is allowed to be 10000 at max.");
return false;
}
mSettings.jobs = tmp;
}
#ifdef THREADING_MODEL_FORK
else if (std::strncmp(argv[i], "-l", 2) == 0) {
std::string numberString;
// "-l 3"
if (std::strcmp(argv[i], "-l") == 0) {
++i;
if (i >= argc || argv[i][0] == '-') {
printError("argument to '-l' is missing.");
return false;
}
numberString = argv[i];
}
// "-l3"
else
numberString = argv[i]+2;
int tmp;
std::string err;
if (!strToInt(numberString, tmp, &err)) {
printError("argument to '-l' is not valid - " + err + ".");
return false;
}
mSettings.loadAverage = tmp;
}
#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] == '-') {
printError("no language given to '-x' option.");
return false;
}
str = argv[i];
}
if (str == "c")
mSettings.enforcedLang = Settings::Language::C;
else if (str == "c++")
mSettings.enforcedLang = Settings::Language::CPP;
else {
printError("unknown language '" + str + "' enforced.");
return false;
}
}
// --library
else if (std::strncmp(argv[i], "--library=", 10) == 0) {
mSettings.libraries.emplace_back(argv[i] + 10);
}
// 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 false;
if (tmp < 1) {
printError("argument to '--max-configs=' must be greater than 0.");
return false;
}
mSettings.maxConfigs = tmp;
mSettings.force = false;
maxconfigs = true;
}
// max ctu depth
else if (std::strncmp(argv[i], "--max-ctu-depth=", 16) == 0) {
if (!parseNumberArg(argv[i], 16, mSettings.maxCtuDepth))
return false;
}
// Write results in file
else if (std::strncmp(argv[i], "--output-file=", 14) == 0)
mSettings.outputFile = Path::simplifyPath(Path::fromNativeSeparators(argv[i] + 14));
// 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.performanceValueFlowMaxTime, true))
return false;
}
else if (std::strncmp(argv[i], "--performance-valueflow-max-if-count=", 37) == 0) {
if (!parseNumberArg(argv[i], 37, mSettings.performanceValueFlowMaxIfCount, true))
return false;
}
// 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)) {
printError(errstr);
return false;
}
#if defined(_WIN64) || defined(_WIN32)
default_platform = false;
#endif
// 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 = cppcheck::Platform::Type::Unix32;
else if (platform == "unix64-unsigned")
mSettings.platform.type = cppcheck::Platform::Type::Unix64;
}
// Write results in results.plist
else if (std::strncmp(argv[i], "--plist-output=", 15) == 0) {
mSettings.plistOutput = Path::simplifyPath(Path::fromNativeSeparators(argv[i] + 15));
if (mSettings.plistOutput.empty())
mSettings.plistOutput = "./";
else if (!endsWith(mSettings.plistOutput,'/'))
mSettings.plistOutput += '/';
const std::string plistOutput = Path::toNativeSeparators(mSettings.plistOutput);
if (!FileLister::isDirectory(plistOutput)) {
std::string message("plist folder does not exist: \"");
message += plistOutput;
message += "\".";
printError(message);
return false;
}
}
// Special Cppcheck Premium options
else if (std::strncmp(argv[i], "--premium=", 10) == 0 && isCppcheckPremium()) {
if (!mSettings.premiumArgs.empty())
mSettings.premiumArgs += " ";
const std::string p(argv[i] + 10);
mSettings.premiumArgs += "--" + p;
if (p == "misra-c-2012")
mSettings.addons.emplace("misra");
}
// --project
else if (std::strncmp(argv[i], "--project=", 10) == 0) {
mSettings.checkAllConfigurations = false; // Can be overridden with --max-configs or --force
std::string projectFile = argv[i]+10;
ImportProject::Type projType = mSettings.project.import(projectFile, &mSettings);
mSettings.project.projectType = projType;
if (projType == ImportProject::Type::CPPCHECK_GUI) {
mPathNames = mSettings.project.guiProject.pathNames;
for (const std::string &lib : mSettings.project.guiProject.libraries)
mSettings.libraries.emplace_back(lib);
const auto& excludedPaths = mSettings.project.guiProject.excludedPaths;
std::copy(excludedPaths.cbegin(), excludedPaths.cend(), std::back_inserter(mIgnoredPaths));
std::string platform(mSettings.project.guiProject.platform);
// keep existing platform from command-line intact
if (!platform.empty()) {
if (platform == "Unspecified") {
printMessage("'Unspecified' is a deprecated platform type and will be removed in Cppcheck 2.14. Please use 'unspecified' instead.");
platform = "unspecified";
}
std::string errstr;
const std::vector<std::string> paths = {projectFile, argv[0]};
if (!mSettings.platform.set(platform, errstr, paths)) {
printError(errstr);
return false;
}
}
if (!mSettings.project.guiProject.projectFile.empty()) {
projectFile = mSettings.project.guiProject.projectFile;
projType = mSettings.project.import(mSettings.project.guiProject.projectFile, &mSettings);
}
}
if (projType == ImportProject::Type::VS_SLN || projType == ImportProject::Type::VS_VCXPROJ) {
if (mSettings.project.guiProject.analyzeAllVsConfigs == "false")
mSettings.project.selectOneVsConfig(mSettings.platform.type);
if (!CppCheckExecutor::tryLoadLibrary(mSettings.library, argv[0], "windows.cfg")) {
// This shouldn't happen normally.
printError("failed to load 'windows.cfg'. Your Cppcheck installation is broken. Please re-install.");
return false;
}
}
if (projType == ImportProject::Type::MISSING) {
printError("failed to open project '" + projectFile + "'. The file does not exist.");
return false;
}
if (projType == ImportProject::Type::UNKNOWN) {
printError("failed to load project '" + projectFile + "'. The format is unknown.");
return false;
}
if (projType == ImportProject::Type::FAILURE) {
printError("failed to load project '" + projectFile + "'. An error occurred.");
return false;
}
}
// --project-configuration
else if (std::strncmp(argv[i], "--project-configuration=", 24) == 0) {
mVSConfig = argv[i] + 24;
if (!mVSConfig.empty() && (mSettings.project.projectType == ImportProject::Type::VS_SLN || mSettings.project.projectType == ImportProject::Type::VS_VCXPROJ))
mSettings.project.ignoreOtherConfigs(mVSConfig);
}
// Only print something when there are errors
else if (std::strcmp(argv[i], "-q") == 0 || std::strcmp(argv[i], "--quiet") == 0)
mSettings.quiet = true;
// Output relative paths
else if (std::strcmp(argv[i], "-rp") == 0 || std::strcmp(argv[i], "--relative-paths") == 0)
mSettings.relativePaths = true;
else if (std::strncmp(argv[i], "-rp=", 4) == 0 || std::strncmp(argv[i], "--relative-paths=", 17) == 0) {
mSettings.relativePaths = true;
if (argv[i][argv[i][3]=='='?4:17] != 0) {
std::string paths = argv[i]+(argv[i][3]=='='?4:17);
for (;;) {
const std::string::size_type pos = paths.find(';');
if (pos == std::string::npos) {
mSettings.basePaths.emplace_back(Path::fromNativeSeparators(paths));
break;
}
mSettings.basePaths.emplace_back(Path::fromNativeSeparators(paths.substr(0, pos)));
paths.erase(0, pos + 1);
}
} else {
printError("no paths specified for the '" + std::string(argv[i]) + "' option.");
return false;
}
}
// Report progress
else if (std::strcmp(argv[i], "--report-progress") == 0) {
mSettings.reportProgress = true;
}
#ifdef HAVE_RULES
// Rule given at command line
else if (std::strncmp(argv[i], "--rule=", 7) == 0) {
Settings::Rule rule;
rule.pattern = 7 + argv[i];
mSettings.rules.emplace_back(std::move(rule));
}
// Rule file
else if (std::strncmp(argv[i], "--rule-file=", 12) == 0) {
tinyxml2::XMLDocument doc;
if (doc.LoadFile(12+argv[i]) == tinyxml2::XML_SUCCESS) {
tinyxml2::XMLElement *node = doc.FirstChildElement();
if (node && strcmp(node->Value(), "rules") == 0)
node = node->FirstChildElement("rule");
for (; node && strcmp(node->Value(), "rule") == 0; node = node->NextSiblingElement()) {
Settings::Rule rule;
const tinyxml2::XMLElement *tokenlist = node->FirstChildElement("tokenlist");
if (tokenlist)
rule.tokenlist = tokenlist->GetText();
const tinyxml2::XMLElement *pattern = node->FirstChildElement("pattern");
if (pattern) {
rule.pattern = pattern->GetText();
}
tinyxml2::XMLElement *message = node->FirstChildElement("message");
if (message) {
const tinyxml2::XMLElement *severity = message->FirstChildElement("severity");
if (severity)
rule.severity = Severity::fromString(severity->GetText());
const tinyxml2::XMLElement *id = message->FirstChildElement("id");
if (id)
rule.id = id->GetText();
const tinyxml2::XMLElement *summary = message->FirstChildElement("summary");
if (summary)
rule.summary = summary->GetText() ? summary->GetText() : "";
}
if (!rule.pattern.empty())
mSettings.rules.emplace_back(std::move(rule));
}
} else {
printError("unable to load rule-file: " + std::string(12+argv[i]));
return false;
}
}
#endif
// show timing information..
else if (std::strncmp(argv[i], "--showtime=", 11) == 0) {
const std::string showtimeMode = argv[i] + 11;
if (showtimeMode == "file")
mSettings.showtime = SHOWTIME_MODES::SHOWTIME_FILE;
else if (showtimeMode == "file-total")
mSettings.showtime = SHOWTIME_MODES::SHOWTIME_FILE_TOTAL;
else if (showtimeMode == "summary")
mSettings.showtime = SHOWTIME_MODES::SHOWTIME_SUMMARY;
else if (showtimeMode == "top5")
mSettings.showtime = SHOWTIME_MODES::SHOWTIME_TOP5;
else if (showtimeMode.empty())
mSettings.showtime = SHOWTIME_MODES::SHOWTIME_NONE;
else {
printError("unrecognized showtime mode: \"" + showtimeMode + "\". Supported modes: file, file-total, summary, top5.");
return false;
}
}
// --std
else if (std::strncmp(argv[i], "--std=", 6) == 0) {
const std::string std = argv[i] + 6;
// TODO: print error when standard is unknown
if (std::strncmp(std.c_str(), "c++", 3) == 0) {
mSettings.standards.cpp = Standards::getCPP(std);
}
else if (std::strncmp(std.c_str(), "c", 1) == 0) {
mSettings.standards.c = Standards::getC(std);
}
else {
printError("unknown --std value '" + std + "'");
return false;
}
}
else if (std::strncmp(argv[i], "--suppress=", 11) == 0) {
const std::string suppression = argv[i]+11;
const std::string errmsg(mSuppressions.addSuppressionLine(suppression));
if (!errmsg.empty()) {
printError(errmsg);
return false;
}
}
// Filter errors
else if (std::strncmp(argv[i], "--suppressions-list=", 20) == 0) {
std::string filename = argv[i]+20;
std::ifstream f(filename);
if (!f.is_open()) {
std::string message("couldn't open the file: \"");
message += filename;
message += "\".";
if (std::count(filename.cbegin(), filename.cend(), ',') > 0 ||
std::count(filename.cbegin(), filename.cend(), '.') > 1) {
// If user tried to pass multiple files (we can only guess that)
// e.g. like this: --suppressions-list=a.txt,b.txt
// print more detailed error message to tell user how he can solve the problem
message += "\nIf you want to pass two files, you can do it e.g. like this:";
message += "\n cppcheck --suppressions-list=a.txt --suppressions-list=b.txt file.cpp";
}
printError(message);
return false;
}
const std::string errmsg(mSuppressions.parseFile(f));
if (!errmsg.empty()) {
printError(errmsg);
return false;
}
}
else if (std::strncmp(argv[i], "--suppress-xml=", 15) == 0) {
const char * filename = argv[i] + 15;
const std::string errmsg(mSuppressions.parseXmlFile(filename));
if (!errmsg.empty()) {
printError(errmsg);
return false;
}
}
// TODO: deprecate "--template <template>"
// Output formatter
else if (std::strcmp(argv[i], "--template") == 0 ||
std::strncmp(argv[i], "--template=", 11) == 0) {
// "--template format"
if (argv[i][10] == '=')
mSettings.templateFormat = argv[i] + 11;
else if ((i+1) < argc && argv[i+1][0] != '-') {
++i;
mSettings.templateFormat = argv[i];
} else {
printError("argument to '--template' is missing.");
return false;
}
// TODO: bail out when no placeholders are found?
if (mSettings.templateFormat == "gcc") {
mSettings.templateFormat = "{bold}{file}:{line}:{column}: {magenta}warning:{default} {message} [{id}]{reset}\\n{code}";
mSettings.templateLocation = "{bold}{file}:{line}:{column}: {dim}note:{reset} {info}\\n{code}";
} else if (mSettings.templateFormat == "daca2") {
mSettings.daca = true;
mSettings.templateFormat = "{file}:{line}:{column}: {severity}:{inconclusive:inconclusive:} {message} [{id}]";
mSettings.templateLocation = "{file}:{line}:{column}: note: {info}";
} else if (mSettings.templateFormat == "vs")
mSettings.templateFormat = "{file}({line}): {severity}: {message}";
else if (mSettings.templateFormat == "edit")
mSettings.templateFormat = "{file} +{line}: {severity}: {message}";
else if (mSettings.templateFormat == "cppcheck1")
mSettings.templateFormat = "{callstack}: ({severity}{inconclusive:, inconclusive}) {message}";
else if (mSettings.templateFormat == "selfcheck") {
mSettings.templateFormat = "{file}:{line}:{column}: {severity}:{inconclusive:inconclusive:} {message} [{id}]\\n{code}";
mSettings.templateLocation = "{file}:{line}:{column}: note: {info}\\n{code}";
mSettings.daca = true;
}
}
// TODO: deprecate "--template-location <template>"
else if (std::strcmp(argv[i], "--template-location") == 0 ||
std::strncmp(argv[i], "--template-location=", 20) == 0) {
// "--template-location format"
if (argv[i][19] == '=')
mSettings.templateLocation = argv[i] + 20;
else if ((i+1) < argc && argv[i+1][0] != '-') {
++i;
mSettings.templateLocation = argv[i];
} else {
printError("argument to '--template-location' is missing.");
return false;
}
// TODO: bail out when no placeholders are found?
}
else if (std::strncmp(argv[i], "--template-max-time=", 20) == 0) {
if (!parseNumberArg(argv[i], 20, mSettings.templateMaxTime))
return false;
}
else if (std::strncmp(argv[i], "--typedef-max-time=", 19) == 0) {
if (!parseNumberArg(argv[i], 19, mSettings.typedefMaxTime))
return false;
}
else if (std::strncmp(argv[i], "--valueflow-max-iterations=", 27) == 0) {
if (!parseNumberArg(argv[i], 27, mSettings.valueFlowMaxIterations))
return false;
}
else if (std::strcmp(argv[i], "-v") == 0 || std::strcmp(argv[i], "--verbose") == 0)
mSettings.verbose = true;
else if (std::strcmp(argv[i], "--version") == 0) {
mShowVersion = true;
mExitAfterPrint = true;
mSettings.loadCppcheckCfg();
return true;
}
// Write results in results.xml
else if (std::strcmp(argv[i], "--xml") == 0)
mSettings.xml = true;
// Define the XML file version (and enable XML output)
else if (std::strncmp(argv[i], "--xml-version=", 14) == 0) {
int tmp;
if (!parseNumberArg(argv[i], 14, tmp))
return false;
if (tmp != 2) {
// We only have xml version 2
printError("'--xml-version' can only be 2.");
return false;
}
mSettings.xml_version = tmp;
// Enable also XML if version is set
mSettings.xml = true;
}
else {
std::string message("unrecognized command line option: \"");
message += argv[i];
message += "\".";
printError(message);
return false;
}
}
else {
mPathNames.emplace_back(Path::fromNativeSeparators(Path::removeQuotationMarks(argv[i])));
}
}
mSettings.loadCppcheckCfg();
// Default template format..
if (mSettings.templateFormat.empty()) {
mSettings.templateFormat = "{bold}{file}:{line}:{column}: {red}{inconclusive:{magenta}}{severity}:{inconclusive: inconclusive:}{default} {message} [{id}]{reset}\\n{code}";
if (mSettings.templateLocation.empty())
mSettings.templateLocation = "{bold}{file}:{line}:{column}: {dim}note:{reset} {info}\\n{code}";
}
// replace static parts of the templates
substituteTemplateFormatStatic(mSettings.templateFormat);
substituteTemplateLocationStatic(mSettings.templateLocation);
mSettings.project.ignorePaths(mIgnoredPaths);
if (mSettings.force || maxconfigs)
mSettings.checkAllConfigurations = true;
if (mSettings.force)
mSettings.maxConfigs = INT_MAX;
else if ((def || mSettings.preprocessOnly) && !maxconfigs)
mSettings.maxConfigs = 1U;
if (mSettings.checks.isEnabled(Checks::unusedFunction) && mSettings.jobs > 1) {
printMessage("unusedFunction check can't be used with '-j' option. Disabling unusedFunction check.");
}
if (argc <= 1) {
mShowHelp = true;
mExitAfterPrint = true;
}
if (mShowHelp) {
printHelp();
return true;
}
#if defined(_WIN64)
if (SHOW_DEF_PLATFORM_MSG && default_platform && !mSettings.quiet)
printMessage("Windows 64-bit binaries currently default to the 'win64' platform. Starting with Cppcheck 2.13 they will default to 'native' instead. Please specify '--platform=win64' explicitly if you rely on this.");
#elif defined(_WIN32)
if (SHOW_DEF_PLATFORM_MSG && default_platform && !mSettings.quiet)
printMessage("Windows 32-bit binaries currently default to the 'win32A' platform. Starting with Cppcheck 2.13 they will default to 'native' instead. Please specify '--platform=win32A' explicitly if you rely on this.");
#endif
// Print error only if we have "real" command and expect files
if (!mExitAfterPrint && mPathNames.empty() && mSettings.project.fileSettings.empty()) {
printError("no C or C++ source files found.");
return false;
}
// Use paths _pathnames if no base paths for relative path output are given
if (mSettings.basePaths.empty() && mSettings.relativePaths)
mSettings.basePaths = mPathNames;
return true;
}
void CmdLineParser::printHelp()
{
const std::string manualUrl(isCppcheckPremium() ?
"https://cppcheck.sourceforge.io/manual.pdf" :
"https://files.cppchecksolutions.com/manual.pdf");
std::cout << "Cppcheck - A tool for static C/C++ code analysis\n"
"\n"
"Syntax:\n"
" cppcheck [OPTIONS] [files or paths]\n"
"\n"
"If a directory is given instead of a filename, *.cpp, *.cxx, *.cc, *.c++, *.c, *.ipp,\n"
"*.ixx, *.tpp, and *.txx files are checked recursively from the given directory.\n\n"
"Options:\n"
" --addon=<addon>\n"
" Execute addon. i.e. --addon=misra. If options must be\n"
" provided a json configuration is needed.\n"
" --addon-python=<python interpreter>\n"
" You can specify the python interpreter either in the\n"
" addon json files or through this command line option.\n"
" If not present, Cppcheck will try \"python3\" first and\n"
" then \"python\".\n"
" --cppcheck-build-dir=<dir>\n"
" Cppcheck work folder. Advantages:\n"
" * whole program analysis\n"
" * faster analysis; Cppcheck will reuse the results if\n"
" the hash for a file is unchanged.\n"
" * some useful debug information, i.e. commands used to\n"
" execute clang/clang-tidy/addons.\n"
" --check-config Check cppcheck configuration. The normal code\n"
" analysis is disabled by this flag.\n"
" --check-level=<level>\n"
" Configure how much checking you want:\n"
" * normal: Cppcheck uses some compromises in the checking so\n"
" the checking will finish in reasonable time.\n"
" * exhaustive: deeper analysis that you choose when you can\n"
" wait.\n"
" The default choice is 'normal'.\n"
" --check-library Show information messages when library files have\n"
" incomplete info.\n"
" --clang=<path> Experimental: Use Clang parser instead of the builtin Cppcheck\n"
" parser. Takes the executable as optional parameter and\n"
" defaults to `clang`. Cppcheck will run the given Clang\n"
" executable, import the Clang AST and convert it into\n"
" Cppcheck data. After that the normal Cppcheck analysis is\n"
" used. You must have the executable in PATH if no path is\n"
" given.\n"
" --config-exclude=<dir>\n"
" Path (prefix) to be excluded from configuration\n"
" checking. Preprocessor configurations defined in\n"
" headers (but not sources) matching the prefix will not\n"
" be considered for evaluation.\n"
" --config-excludes-file=<file>\n"
" A file that contains a list of config-excludes\n"
" --disable=<id> Disable individual checks.\n"
" Please refer to the documentation of --enable=<id>\n"
" for further details.\n"
" --dump Dump xml data for each translation unit. The dump\n"
" files have the extension .dump and contain ast,\n"
" tokenlist, symboldatabase, valueflow.\n"
" -D<ID> Define preprocessor symbol. Unless --max-configs or\n"
" --force is used, Cppcheck will only check the given\n"
" configuration when -D is used.\n"
" Example: '-DDEBUG=1 -D__cplusplus'.\n"
" -E Print preprocessor output on stdout and don't do any\n"
" further processing.\n"
" --enable=<id> Enable additional checks. The available ids are:\n"
" * all\n"
" Enable all checks. It is recommended to only\n"
" use --enable=all when the whole program is\n"
" scanned, because this enables unusedFunction.\n"
" * warning\n"
" Enable warning messages\n"
" * style\n"
" Enable all coding style checks. All messages\n"
" with the severities 'style', 'warning',\n"
" 'performance' and 'portability' are enabled.\n"
" * performance\n"
" Enable performance messages\n"
" * portability\n"
" Enable portability messages\n"
" * information\n"
" Enable information messages\n"
" * unusedFunction\n"
" Check for unused functions. It is recommended\n"
" to only enable this when the whole program is\n"
" scanned.\n"
" * missingInclude\n"
" Warn if there are missing includes.\n"
" Several ids can be given if you separate them with\n"
" commas. See also --std\n"
" --error-exitcode=<n> If errors are found, integer [n] is returned instead of\n"
" the default '0'. '" << EXIT_FAILURE << "' is returned\n"
" if arguments are not valid or if no input files are\n"
" provided. Note that your operating system can modify\n"
" this value, e.g. '256' can become '0'.\n"
" --errorlist Print a list of all the error messages in XML format.\n"
" --exitcode-suppressions=<file>\n"
" Used when certain messages should be displayed but\n"
" should not cause a non-zero exitcode.\n"
" --file-filter=<str> Analyze only those files matching the given filter str\n"
" Can be used multiple times\n"
" Example: --file-filter=*bar.cpp analyzes only files\n"
" that end with bar.cpp.\n"
" --file-list=<file> Specify the files to check in a text file. Add one\n"
" filename per line. When file is '-,' the file list will\n"
" be read from standard input.\n"
" -f, --force Force checking of all configurations in files. If used\n"
" together with '--max-configs=', the last option is the\n"
" one that is effective.\n"
" -h, --help Print this help.\n"
" -I <dir> Give path to search for include files. Give several -I\n"
" parameters to give several paths. First given path is\n"
" searched for contained header files first. If paths are\n"
" relative to source files, this is not needed.\n"
" --includes-file=<file>\n"
" Specify directory paths to search for included header\n"
" files in a text file. Add one include path per line.\n"
" First given path is searched for contained header\n"
" files first. If paths are relative to source files,\n"
" this is not needed.\n"
" --include=<file>\n"
" Force inclusion of a file before the checked file.\n"
" -i <dir or file> Give a source file or source file directory to exclude\n"
" from the check. This applies only to source files so\n"
" header files included by source files are not matched.\n"
" Directory name is matched to all parts of the path.\n"
" --inconclusive Allow that Cppcheck reports even though the analysis is\n"
" inconclusive.\n"
" There are false positives with this option. Each result\n"
" must be carefully investigated before you know if it is\n"
" good or bad.\n"
" --inline-suppr Enable inline suppressions. Use them by placing one or\n"
" more comments, like: '// cppcheck-suppress warningId'\n"
" on the lines before the warning to suppress.\n"
" -j <jobs> Start <jobs> threads to do the checking simultaneously.\n"
#ifdef THREADING_MODEL_FORK
" -l <load> Specifies that no new threads should be started if\n"
" there are other threads running and the load average is\n"
" at least <load>.\n"
#endif
" --language=<language>, -x <language>\n"
" Forces cppcheck to check all files as the given\n"
" language. Valid values are: c, c++\n"
" --library=<cfg> Load file <cfg> that contains information about types\n"
" and functions. With such information Cppcheck\n"
" understands your code better and therefore you\n"
" get better results. The std.cfg file that is\n"
" distributed with Cppcheck is loaded automatically.\n"
" For more information about library files, read the\n"
" manual.\n"
" --max-configs=<limit>\n"
" Maximum number of configurations to check in a file\n"
" before skipping it. Default is '12'. If used together\n"
" with '--force', the last option is the one that is\n"
" effective.\n"
" --max-ctu-depth=N Max depth in whole program analysis. The default value\n"
" is 2. A larger value will mean more errors can be found\n"
" but also means the analysis will be slower.\n"
" --output-file=<file> Write results to file, rather than standard error.\n"
" --platform=<type>, --platform=<file>\n"
" Specifies platform specific types and sizes. The\n"
" available builtin platforms are:\n"
" * unix32\n"
" 32 bit unix variant\n"
" * unix64\n"
" 64 bit unix variant\n"
" * win32A\n"
" 32 bit Windows ASCII character encoding\n"
" * win32W\n"
" 32 bit Windows UNICODE character encoding\n"
" * win64\n"
" 64 bit Windows\n"
" * avr8\n"
" 8 bit AVR microcontrollers\n"
" * elbrus-e1cp\n"
" Elbrus e1c+ architecture\n"
" * pic8\n"
" 8 bit PIC microcontrollers\n"
" Baseline and mid-range architectures\n"
" * pic8-enhanced\n"
" 8 bit PIC microcontrollers\n"
" Enhanced mid-range and high end (PIC18) architectures\n"
" * pic16\n"
" 16 bit PIC microcontrollers\n"
" * mips32\n"
" 32 bit MIPS microcontrollers\n"
" * native\n"
" Type sizes of host system are assumed, but no\n"
" further assumptions.\n"
" * unspecified\n"
" Unknown type sizes\n"
" --plist-output=<path>\n"
" Generate Clang-plist output files in folder.\n";
if (isCppcheckPremium()) {
std::cout << " --premium=<option>\n"
<< " Coding standards:\n"
<< " * autosar Autosar (partial)\n"
<< " * cert-c-2016 Cert C 2016 checking\n"
<< " * cert-c++-2016 Cert C++ 2016 checking (partial)\n"
<< " * misra-c-2012 Misra C 2012\n"
<< " * misra-c++-2008 Misra C++ 2008 (partial)\n"
<< " Other:\n"
<< " * bughunting Soundy analysis\n"
<< " * cert-c-int-precision=BITS Integer precision to use in Cert C analysis.\n";
}
std::cout <<
" --project=<file> Run Cppcheck on project. The <file> can be a Visual\n"
" Studio Solution (*.sln), Visual Studio Project\n"
" (*.vcxproj), compile database (compile_commands.json),\n"
" or Borland C++ Builder 6 (*.bpr). The files to analyse,\n"
" include paths, defines, platform and undefines in\n"
" the specified file will be used.\n"
" --project-configuration=<config>\n"
" If used together with a Visual Studio Solution (*.sln)\n"
" or Visual Studio Project (*.vcxproj) you can limit\n"
" the configuration cppcheck should check.\n"
" For example: '--project-configuration=Release|Win32'\n"
" -q, --quiet Do not show progress reports.\n"
" -rp=<paths>, --relative-paths=<paths>\n"
" Use relative paths in output. When given, <paths> are\n"
" used as base. You can separate multiple paths by ';'.\n"
" Otherwise path where source files are searched is used.\n"
" We use string comparison to create relative paths, so\n"
" using e.g. ~ for home folder does not work. It is\n"
" currently only possible to apply the base paths to\n"
" files that are on a lower level in the directory tree.\n"
" --report-progress Report progress messages while checking a file.\n"
#ifdef HAVE_RULES
" --rule=<rule> Match regular expression.\n"
" --rule-file=<file> Use given rule file. For more information, see:\n"
" http://sourceforge.net/projects/cppcheck/files/Articles/\n"
#endif
" --std=<id> Set standard.\n"
" The available options are:\n"
" * c89\n"
" C code is C89 compatible\n"
" * c99\n"
" C code is C99 compatible\n"
" * c11\n"
" C code is C11 compatible (default)\n"
" * c++03\n"
" C++ code is C++03 compatible\n"
" * c++11\n"
" C++ code is C++11 compatible\n"
" * c++14\n"
" C++ code is C++14 compatible\n"
" * c++17\n"
" C++ code is C++17 compatible\n"
" * c++20\n"
" C++ code is C++20 compatible (default)\n"
" --suppress=<spec> Suppress warnings that match <spec>. The format of\n"
" <spec> is:\n"
" [error id]:[filename]:[line]\n"
" The [filename] and [line] are optional. If [error id]\n"
" is a wildcard '*', all error ids match.\n"
" --suppressions-list=<file>\n"
" Suppress warnings listed in the file. Each suppression\n"
" is in the same format as <spec> above.\n"
" --suppress-xml=<file>\n"
" Suppress warnings listed in a xml file. XML file should\n"
" follow the manual.pdf format specified in section.\n"
" `6.4 XML suppressions` .\n"
" --template='<text>' Format the error messages. Available fields:\n"
" {file} file name\n"
" {line} line number\n"
" {column} column number\n"
" {callstack} show a callstack. Example:\n"
" [file.c:1] -> [file.c:100]\n"
" {inconclusive:text} if warning is inconclusive, text\n"
" is written\n"
" {severity} severity\n"
" {message} warning message\n"
" {id} warning id\n"
" {cwe} CWE id (Common Weakness Enumeration)\n"
" {code} show the real code\n"
" \\t insert tab\n"
" \\n insert newline\n"
" \\r insert carriage return\n"
" Example formats:\n"
" '{file}:{line},{severity},{id},{message}' or\n"
" '{file}({line}):({severity}) {message}' or\n"
" '{callstack} {message}'\n"
" Pre-defined templates: gcc (default), cppcheck1 (old default), vs, edit.\n"
// Note: template daca2 also exists, but is for internal use (cppcheck scripts).
" --template-location='<text>'\n"
" Format error message location. If this is not provided\n"
" then no extra location info is shown.\n"
" Available fields:\n"
" {file} file name\n"
" {line} line number\n"
" {column} column number\n"
" {info} location info\n"
" {code} show the real code\n"
" \\t insert tab\n"
" \\n insert newline\n"
" \\r insert carriage return\n"
" Example format (gcc-like):\n"
" '{file}:{line}:{column}: note: {info}\\n{code}'\n"
" -U<ID> Undefine preprocessor symbol. Use -U to explicitly\n"
" hide certain #ifdef <ID> code paths from checking.\n"
" Example: '-UDEBUG'\n"
" -v, --verbose Output more detailed error information.\n"
" --version Print out version number.\n"
" --xml Write results in xml format to error stream (stderr).\n"
"\n"
"Example usage:\n"
" # Recursively check the current folder. Print the progress on the screen and\n"
" # write errors to a file:\n"
" cppcheck . 2> err.txt\n"
"\n"
" # Recursively check ../myproject/ and don't print progress:\n"
" cppcheck --quiet ../myproject/\n"
"\n"
" # Check test.cpp, enable all checks:\n"
" cppcheck --enable=all --inconclusive --library=posix test.cpp\n"
"\n"
" # Check f.cpp and search include files from inc1/ and inc2/:\n"
" cppcheck -I inc1/ -I inc2/ f.cpp\n"
"\n"
"For more information:\n"
" " << manualUrl << "\n"
"\n"
"Many thanks to the 3rd party libraries we use:\n"
" * tinyxml2 -- loading project/library/ctu files.\n"
" * picojson -- loading compile database.\n"
" * pcre -- rules.\n"
" * qt -- used in GUI\n";
}
bool CmdLineParser::isCppcheckPremium() const {
if (mSettings.cppcheckCfgProductName.empty())
mSettings.loadCppcheckCfg();
return mSettings.cppcheckCfgProductName.compare(0, 16, "Cppcheck Premium") == 0;
}