787 lines
29 KiB
C++
787 lines
29 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2011 Daniel Marjamäki and Cppcheck team.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <iostream>
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#include <sstream>
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#include <fstream>
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#include <string>
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#include <cstring>
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#include <stdlib.h> // EXIT_FAILURE
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#include "cppcheck.h"
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#include "timer.h"
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#include "settings.h"
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#include "cmdlineparser.h"
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#include "path.h"
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#include "filelister.h"
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#ifdef HAVE_RULES
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// xml is used in rules
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#include <tinyxml.h>
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#endif
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static void AddFilesToList(const std::string& FileList, std::vector<std::string>& PathNames)
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{
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// to keep things initially simple, if the file can't be opened, just be
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// silent and move on
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// ideas : we could also require this should be an xml file, with the filenames
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// specified in an xml structure
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// we could elaborate this then, to also include the I-paths, ...
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// basically for everything that makes the command line very long
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// xml is a bonus then, since we can easily extend it
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// we need a good parser then -> suggestion : TinyXml
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// drawback : creates a dependency
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std::ifstream Files(FileList.c_str());
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if (Files)
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{
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std::string FileName;
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while (std::getline(Files, FileName)) // next line
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{
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if (!FileName.empty())
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{
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PathNames.push_back(FileName);
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}
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}
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}
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}
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CmdLineParser::CmdLineParser(Settings *settings)
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: _settings(settings)
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, _showHelp(false)
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, _showVersion(false)
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, _showErrorMessages(false)
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, _exitAfterPrint(false)
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{
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}
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void CmdLineParser::PrintMessage(const std::string &message)
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{
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std::cout << message << std::endl;
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}
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bool CmdLineParser::ParseFromArgs(int argc, const char* const argv[])
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{
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for (int i = 1; i < argc; i++)
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{
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if (strcmp(argv[i], "--version") == 0)
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{
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_showVersion = true;
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_exitAfterPrint = true;
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return true;
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}
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// Flag used for various purposes during debugging
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else if (strcmp(argv[i], "--debug") == 0)
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_settings->debug = _settings->debugwarnings = true;
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// Show debug warnings
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else if (strcmp(argv[i], "--debug-warnings") == 0)
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_settings->debugwarnings = true;
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// Print out code that triggers false positive
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else if (strcmp(argv[i], "--debug-fp") == 0)
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_settings->debugFalsePositive = true;
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// Enable all checks - will be removed in future
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else if (strcmp(argv[i], "-a") == 0 || strcmp(argv[i], "--all") == 0)
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{
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PrintMessage("cppcheck: -a/--all option is deprecated and will be removed in 1.55 release.");
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PrintMessage("cppcheck: please use --enable=all instead.");
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}
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// Inconclusive checking (still in testing phase)
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else if (strcmp(argv[i], "--inconclusive") == 0)
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_settings->inconclusive = true;
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// Checking coding style - will be removed in the future
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else if (strcmp(argv[i], "-s") == 0 || strcmp(argv[i], "--style") == 0)
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{
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PrintMessage("cppcheck: -s/--style option is deprecated and will be removed in 1.55 release.");
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PrintMessage("cppcheck: please use --enable=style instead.");
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const std::string errmsg = _settings->addEnabled("style");
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if (!errmsg.empty())
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{
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PrintMessage(errmsg);
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return false;
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}
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}
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// Filter errors
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else if (strncmp(argv[i], "--exitcode-suppressions", 23) == 0)
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{
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std::string filename;
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// exitcode-suppressions filename.txt
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// Deprecated
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if (strcmp(argv[i], "--exitcode-suppressions") == 0)
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{
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++i;
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if (i >= argc || strncmp(argv[i], "-", 1) == 0 ||
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strncmp(argv[i], "--", 2) == 0)
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{
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PrintMessage("cppcheck: No filename specified for the --exitcode-suppressions option");
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return false;
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}
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filename = argv[i];
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}
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// exitcode-suppressions=filename.txt
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else
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{
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filename = 24 + argv[i];
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}
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std::ifstream f(filename.c_str());
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if (!f.is_open())
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{
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PrintMessage("cppcheck: Couldn't open the file \"" + std::string(filename) + "\"");
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return false;
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}
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const std::string errmsg(_settings->nofail.parseFile(f));
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if (!errmsg.empty())
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{
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PrintMessage(errmsg);
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return false;
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}
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}
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// Filter errors
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else if (strncmp(argv[i], "--suppressions-list=", 20) == 0)
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{
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std::string filename = argv[i];
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filename = filename.substr(20);
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std::ifstream f(filename.c_str());
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if (!f.is_open())
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{
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std::string message("cppcheck: Couldn't open the file \"");
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message += std::string(filename);
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message += "\"";
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PrintMessage(message);
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return false;
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}
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const std::string errmsg(_settings->nomsg.parseFile(f));
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if (!errmsg.empty())
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{
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PrintMessage(errmsg);
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return false;
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}
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}
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// Filter errors
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// This is deprecated, see --supressions-list above
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else if (strcmp(argv[i], "--suppressions") == 0 &&
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strlen(argv[i]) == 14)
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{
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++i;
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if (i >= argc)
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{
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PrintMessage("cppcheck: No file specified for the --suppressions option");
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return false;
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}
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std::ifstream f(argv[i]);
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if (!f.is_open())
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{
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std::string message("cppcheck: Couldn't open the file \"");
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message += std::string(argv[i]);
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message += "\"";
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PrintMessage(message);
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return false;
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}
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const std::string errmsg(_settings->nomsg.parseFile(f));
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if (!errmsg.empty())
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{
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PrintMessage(errmsg);
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return false;
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}
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}
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else if (strncmp(argv[i], "--suppress=", 11) == 0)
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{
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std::string suppression = argv[i];
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suppression = suppression.substr(11);
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const std::string errmsg(_settings->nomsg.addSuppressionLine(suppression));
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if (!errmsg.empty())
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{
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PrintMessage(errmsg);
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return false;
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}
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}
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// Enables inline suppressions.
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else if (strcmp(argv[i], "--inline-suppr") == 0)
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_settings->_inlineSuppressions = true;
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// Verbose error messages (configuration info)
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else if (strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "--verbose") == 0)
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_settings->_verbose = true;
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// Force checking of files that have "too many" configurations
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else if (strcmp(argv[i], "-f") == 0 || strcmp(argv[i], "--force") == 0)
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_settings->_force = true;
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// Write results in results.xml
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else if (strcmp(argv[i], "--xml") == 0)
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_settings->_xml = true;
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// Define the XML file version (and enable XML output)
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else if (strncmp(argv[i], "--xml-version=", 14) == 0)
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{
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std::string numberString(argv[i]);
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numberString = numberString.substr(14);
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std::istringstream iss(numberString);
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if (!(iss >> _settings->_xml_version))
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{
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PrintMessage("cppcheck: argument to '--xml-version' is not a number");
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return false;
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}
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if (_settings->_xml_version < 0 || _settings->_xml_version > 2)
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{
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// We only have xml versions 1 and 2
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PrintMessage("cppcheck: --xml-version can only be 1 or 2.");
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return false;
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}
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// Enable also XML if version is set
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_settings->_xml = true;
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}
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// Only print something when there are errors
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else if (strcmp(argv[i], "-q") == 0 || strcmp(argv[i], "--quiet") == 0)
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_settings->_errorsOnly = true;
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// Append userdefined code to checked source code
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else if (strncmp(argv[i], "--append=", 9) == 0)
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_settings->append(9 + argv[i]);
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else if (strncmp(argv[i], "--enable=", 9) == 0)
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{
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const std::string errmsg = _settings->addEnabled(argv[i] + 9);
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if (!errmsg.empty())
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{
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PrintMessage(errmsg);
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return false;
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}
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// when "style" is enabled, also enable "performance" and "portability"
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else if (strstr(argv[i]+9, "style"))
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{
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_settings->addEnabled("performance");
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_settings->addEnabled("portability");
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}
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}
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// --error-exitcode=1
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else if (strncmp(argv[i], "--error-exitcode=", 17) == 0)
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{
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std::string temp = argv[i];
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temp = temp.substr(17);
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std::istringstream iss(temp);
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if (!(iss >> _settings->_exitCode))
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{
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_settings->_exitCode = 0;
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PrintMessage("cppcheck: Argument must be an integer. Try something like '--error-exitcode=1'");
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return false;
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}
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}
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// User define
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else if (strncmp(argv[i], "-D", 2) == 0)
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{
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std::string define;
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// "-D define"
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if (strcmp(argv[i], "-D") == 0)
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{
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++i;
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if (i >= argc || strncmp(argv[i], "-", 1) == 0 ||
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strncmp(argv[i], "--", 2) == 0)
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{
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PrintMessage("cppcheck: argument to '-D' is missing");
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return false;
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}
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define = argv[i];
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}
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// "-Ddefine"
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else
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{
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define = 2 + argv[i];
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}
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if (!_settings->userDefines.empty())
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_settings->userDefines += ";";
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_settings->userDefines += define;
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}
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// Include paths
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else if (strncmp(argv[i], "-I", 2) == 0)
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{
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std::string path;
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// "-I path/"
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if (strcmp(argv[i], "-I") == 0)
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{
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++i;
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if (i >= argc)
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{
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PrintMessage("cppcheck: argument to '-I' is missing");
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return false;
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}
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path = argv[i];
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}
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// "-Ipath/"
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else
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{
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path = 2 + argv[i];
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}
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path = Path::fromNativeSeparators(path);
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path = Path::removeQuotationMarks(path);
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// If path doesn't end with / or \, add it
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if (path[path.length()-1] != '/')
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path += '/';
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_settings->_includePaths.push_back(path);
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}
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// file list specified
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else if (strncmp(argv[i], "--file-list=", 12) == 0)
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{
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// open this file and read every input file (1 file name per line)
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AddFilesToList(12 + argv[i], _pathnames);
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}
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// Ignored paths
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else if (strncmp(argv[i], "-i", 2) == 0)
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{
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std::string path;
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// "-i path/"
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if (strcmp(argv[i], "-i") == 0)
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{
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++i;
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if (i >= argc)
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{
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PrintMessage("cppcheck: argument to '-i' is missing");
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return false;
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}
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path = argv[i];
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}
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// "-ipath/"
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else
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{
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path = 2 + argv[i];
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}
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if (!path.empty())
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{
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path = Path::fromNativeSeparators(path);
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path = Path::simplifyPath(path.c_str());
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path = Path::removeQuotationMarks(path);
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if (!FileLister::fileExists(path) && FileLister::isDirectory(path))
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{
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// If directory name doesn't end with / or \, add it
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if (path[path.length()-1] != '/')
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path += '/';
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}
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_ignoredPaths.push_back(path);
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}
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}
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// Report progress
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else if (strcmp(argv[i], "--report-progress") == 0)
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{
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_settings->reportProgress = true;
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}
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// --std
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else if (strcmp(argv[i], "--std=posix") == 0)
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{
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_settings->posix = true;
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}
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// Output formatter
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else if (strcmp(argv[i], "--template") == 0)
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{
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// "--template path/"
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++i;
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if (i >= argc)
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{
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PrintMessage("cppcheck: argument to '--template' is missing");
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return false;
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}
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_settings->_outputFormat = argv[i];
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if (_settings->_outputFormat == "gcc")
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_settings->_outputFormat = "{file}:{line}: {severity}: {message}";
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else if (_settings->_outputFormat == "vs")
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_settings->_outputFormat = "{file}({line}): {severity}: {message}";
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}
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// Checking threads
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else if (strcmp(argv[i], "-j") == 0 ||
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strncmp(argv[i], "-j", 2) == 0)
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{
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std::string numberString;
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// "-j 3"
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if (strcmp(argv[i], "-j") == 0)
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{
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++i;
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if (i >= argc)
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{
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PrintMessage("cppcheck: argument to '-j' is missing");
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return false;
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}
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numberString = argv[i];
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}
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// "-j3"
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else if (strncmp(argv[i], "-j", 2) == 0)
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{
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numberString = argv[i];
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numberString = numberString.substr(2);
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}
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std::istringstream iss(numberString);
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if (!(iss >> _settings->_jobs))
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{
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PrintMessage("cppcheck: argument to '-j' is not a number");
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return false;
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}
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if (_settings->_jobs > 10000)
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{
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// This limit is here just to catch typos. If someone has
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// need for more jobs, this value should be increased.
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PrintMessage("cppcheck: argument for '-j' is allowed to be 10000 at max");
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return false;
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}
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}
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// deprecated: auto deallocated classes..
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else if (strcmp(argv[i], "--auto-dealloc") == 0)
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{
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++i;
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PrintMessage("cppcheck: --auto-dealloc option is deprecated and will be removed in 1.55 release.");
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}
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// print all possible error messages..
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else if (strcmp(argv[i], "--errorlist") == 0)
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{
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_showErrorMessages = true;
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_settings->_xml = true;
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_exitAfterPrint = true;
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}
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// documentation..
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else if (strcmp(argv[i], "--doc") == 0)
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{
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std::ostringstream doc;
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// Get documentation..
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for (std::list<Check *>::iterator it = Check::instances().begin(); it != Check::instances().end(); ++it)
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{
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doc << "===" << (*it)->name() << "===\n"
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<< (*it)->classInfo() << "\n\n";
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}
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std::string doc2(doc.str());
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while (doc2.find("\n\n\n") != std::string::npos)
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doc2.erase(doc2.find("\n\n\n"), 1);
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std::cout << doc2;
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_exitAfterPrint = true;
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return true;
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}
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// --test-2-pass Experimental 2-pass checking of files
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// This command line flag will be removed
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else if (strcmp(argv[i], "--test-2-pass") == 0)
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{
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_settings->test_2_pass = true;
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}
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// show timing information..
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else if (strncmp(argv[i], "--showtime=", 11) == 0)
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{
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const std::string showtimeMode = argv[i] + 11;
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if (showtimeMode == "file")
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_settings->_showtime = SHOWTIME_FILE;
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else if (showtimeMode == "summary")
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_settings->_showtime = SHOWTIME_SUMMARY;
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else if (showtimeMode == "top5")
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_settings->_showtime = SHOWTIME_TOP5;
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else
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_settings->_showtime = SHOWTIME_NONE;
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}
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#ifdef HAVE_RULES
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// Rule given at command line
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else if (strncmp(argv[i], "--rule=", 7) == 0)
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{
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Settings::Rule rule;
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rule.pattern = 7 + argv[i];
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_settings->rules.push_back(rule);
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}
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// Rule file
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else if (strncmp(argv[i], "--rule-file=", 12) == 0)
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{
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TiXmlDocument doc;
|
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if (doc.LoadFile(12+argv[i]))
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{
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TiXmlElement *node = doc.FirstChildElement();
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for (; node && node->ValueStr() == "rule"; node = node->NextSiblingElement())
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{
|
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Settings::Rule rule;
|
|
|
|
TiXmlElement *pattern = node->FirstChildElement("pattern");
|
|
if (pattern)
|
|
{
|
|
rule.pattern = pattern->GetText();
|
|
}
|
|
|
|
TiXmlElement *message = node->FirstChildElement("message");
|
|
if (message)
|
|
{
|
|
TiXmlElement *severity = message->FirstChildElement("severity");
|
|
if (severity)
|
|
rule.severity = severity->GetText();
|
|
|
|
TiXmlElement *id = message->FirstChildElement("id");
|
|
if (id)
|
|
rule.id = id->GetText();
|
|
|
|
TiXmlElement *summary = message->FirstChildElement("summary");
|
|
if (summary)
|
|
rule.summary = summary->GetText();
|
|
}
|
|
|
|
if (!rule.pattern.empty())
|
|
_settings->rules.push_back(rule);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// Check configuration
|
|
else if (strcmp(argv[i], "--check-config") == 0)
|
|
{
|
|
_settings->checkConfiguration = true;
|
|
}
|
|
|
|
// Specify platform
|
|
else if (strncmp(argv[i], "--platform=", 11) == 0)
|
|
{
|
|
std::string platform(11+argv[i]);
|
|
|
|
if (platform == "win32")
|
|
_settings->platform(Settings::Win32);
|
|
else if (platform == "win64")
|
|
_settings->platform(Settings::Win64);
|
|
else if (platform == "unix32")
|
|
_settings->platform(Settings::Unix32);
|
|
else if (platform == "unix64")
|
|
_settings->platform(Settings::Unix64);
|
|
else
|
|
{
|
|
std::string message("cppcheck: error: unrecognized platform\"");
|
|
message += argv[i];
|
|
message += "\"";
|
|
PrintMessage(message);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Print help
|
|
else if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "--help") == 0)
|
|
{
|
|
_pathnames.clear();
|
|
_showHelp = true;
|
|
_exitAfterPrint = true;
|
|
break;
|
|
}
|
|
|
|
else if (strncmp(argv[i], "-", 1) == 0 || strncmp(argv[i], "--", 2) == 0)
|
|
{
|
|
std::string message("cppcheck: error: unrecognized command line option \"");
|
|
message += argv[i];
|
|
message += "\"";
|
|
PrintMessage(message);
|
|
return false;
|
|
}
|
|
|
|
else
|
|
{
|
|
std::string path = Path::fromNativeSeparators(argv[i]);
|
|
path = Path::removeQuotationMarks(path);
|
|
_pathnames.push_back(path);
|
|
}
|
|
}
|
|
|
|
if (_settings->isEnabled("unusedFunction") && _settings->_jobs > 1)
|
|
{
|
|
PrintMessage("cppcheck: unusedFunction check can't be used with -j option, so it was disabled.");
|
|
}
|
|
|
|
// FIXME: Make the _settings.test_2_pass thread safe
|
|
if (_settings->test_2_pass && _settings->_jobs > 1)
|
|
{
|
|
PrintMessage("cppcheck: --test-2-pass doesn't work with -j option yet.");
|
|
}
|
|
|
|
if (argc <= 1)
|
|
_showHelp = true;
|
|
|
|
if (_showHelp)
|
|
{
|
|
PrintHelp();
|
|
return true;
|
|
}
|
|
|
|
// Print error only if we have "real" command and expect files
|
|
if (!_exitAfterPrint && _pathnames.empty())
|
|
{
|
|
PrintMessage("cppcheck: No C or C++ source files found.");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void CmdLineParser::PrintHelp()
|
|
{
|
|
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,\n"
|
|
"*.tpp, and *.txx files are checked recursively from the given directory.\n\n"
|
|
"Options:\n"
|
|
" --append=<file> This allows you to provide information about\n"
|
|
" functions by providing an implementation for them.\n"
|
|
" --check-config Check cppcheck configuration. The normal code\n"
|
|
" analysis is disabled by this flag.\n"
|
|
" -D<ID> By default Cppcheck checks all configurations.\n"
|
|
" Use -D to limit the checking. When -D is used the\n"
|
|
" checking is limited to the given configuration.\n"
|
|
" Example: -DDEBUG=1 -D__cplusplus\n"
|
|
" --enable=<id> Enable additional checks. The available ids are:\n"
|
|
" * all\n"
|
|
" Enable all checks\n"
|
|
" * style\n"
|
|
" Enable all coding style checks. All messages\n"
|
|
" with the severities 'style', 'performance'\n"
|
|
" 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\n"
|
|
" * missingInclude\n"
|
|
" Warn if there are missing includes.\n"
|
|
" For detailed information use --check-config\n"
|
|
" Several ids can be given if you separate them with\n"
|
|
" commas.\n"
|
|
" --error-exitcode=<n> If errors are found, integer [n] is returned instead\n"
|
|
" of 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\n"
|
|
" modify 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-list=<file> Specify the files to check in a text file. Add one\n"
|
|
" filename per line.\n"
|
|
" -f, --force Force checking of all configurations in files that have\n"
|
|
" \"too many\" configurations.\n"
|
|
" -h, --help Print this help.\n"
|
|
" -I <dir> Give include path. Give several -I parameters to give\n"
|
|
" several paths. First given path is checked first. If\n"
|
|
" paths are relative to source files, this is not needed.\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"
|
|
" --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"
|
|
" --platform=<type> Specifies platform specific types and sizes. The available platforms are:\n"
|
|
" * unix32\n"
|
|
" 32 bit unix variant\n"
|
|
" * unix64\n"
|
|
" 64 bit unix variant\n"
|
|
" * win32\n"
|
|
" 32 bit Windows\n"
|
|
" * win64\n"
|
|
" 64 bit Windows\n"
|
|
" -q, --quiet Only print error messages.\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"
|
|
" https://sourceforge.net/projects/cppcheck/files/Articles/\n"
|
|
#endif
|
|
" -s, --style Deprecated, use --enable=style\n"
|
|
" --std=posix Code is posix\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"
|
|
" --template '<text>' Format the error messages. E.g.\n"
|
|
" '{file}:{line},{severity},{id},{message}' or\n"
|
|
" '{file}({line}):({severity}) {message}'\n"
|
|
" Pre-defined templates: gcc, vs\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"
|
|
" --xml-version=<version>\n"
|
|
" Select the XML file version. Currently versions 1 and 2\n"
|
|
" are available. The default version is 1."
|
|
"\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"
|
|
" # Recursively check ../myproject/ and don't print progress:\n"
|
|
" cppcheck --quiet ../myproject/\n"
|
|
" # Check only files one.cpp and two.cpp and give all information there is:\n"
|
|
" cppcheck -v -s one.cpp two.cpp\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"
|
|
" http://cppcheck.sf.net/manual.pdf\n";
|
|
}
|