cppcheck/lib/analyzerinfo.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2020 Cppcheck team.
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*
* 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 "analyzerinfo.h"
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#include "errorlogger.h"
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#include "path.h"
#include "utils.h"
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#include <tinyxml2.h>
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#include <cstring>
#include <map>
#include <sstream>
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AnalyzerInformation::~AnalyzerInformation()
{
close();
}
static std::string getFilename(const std::string &fullpath)
{
std::string::size_type pos1 = fullpath.find_last_of("/\\");
pos1 = (pos1 == std::string::npos) ? 0U : (pos1 + 1U);
std::string::size_type pos2 = fullpath.rfind('.');
if (pos2 < pos1)
pos2 = std::string::npos;
if (pos2 != std::string::npos)
pos2 = pos2 - pos1;
return fullpath.substr(pos1,pos2);
}
void AnalyzerInformation::writeFilesTxt(const std::string &buildDir, const std::list<std::string> &sourcefiles, const std::list<ImportProject::FileSettings> &fileSettings)
{
std::map<std::string, unsigned int> fileCount;
const std::string filesTxt(buildDir + "/files.txt");
std::ofstream fout(filesTxt);
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for (const std::string &f : sourcefiles) {
const std::string afile = getFilename(f);
fout << afile << ".a" << (++fileCount[afile]) << "::" << Path::simplifyPath(Path::fromNativeSeparators(f)) << '\n';
}
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for (const ImportProject::FileSettings &fs : fileSettings) {
const std::string afile = getFilename(fs.filename);
fout << afile << ".a" << (++fileCount[afile]) << ":" << fs.cfg << ":" << Path::simplifyPath(Path::fromNativeSeparators(fs.filename)) << std::endl;
}
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std::ofstream fc(buildDir + "/__temp__.c");
fc << "int x;\n";
std::ofstream fcpp(buildDir + "/__temp__.cpp");
fcpp << "int x;\n";
}
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void AnalyzerInformation::close()
{
mAnalyzerInfoFile.clear();
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if (mOutputStream.is_open()) {
mOutputStream << "</analyzerinfo>\n";
mOutputStream.close();
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}
}
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static bool skipAnalysis(const std::string &analyzerInfoFile, unsigned long long checksum, std::list<ErrorMessage> *errors)
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{
tinyxml2::XMLDocument doc;
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const tinyxml2::XMLError error = doc.LoadFile(analyzerInfoFile.c_str());
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if (error != tinyxml2::XML_SUCCESS)
return false;
const tinyxml2::XMLElement * const rootNode = doc.FirstChildElement();
if (rootNode == nullptr)
return false;
const char *attr = rootNode->Attribute("checksum");
if (!attr || attr != std::to_string(checksum))
return false;
for (const tinyxml2::XMLElement *e = rootNode->FirstChildElement(); e; e = e->NextSiblingElement()) {
if (std::strcmp(e->Name(), "error") == 0)
errors->emplace_back(e);
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}
return true;
}
std::string AnalyzerInformation::getAnalyzerInfoFile(const std::string &buildDir, const std::string &sourcefile, const std::string &cfg)
{
const std::string files(buildDir + "/files.txt");
std::ifstream fin(files);
if (fin.is_open()) {
std::string line;
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const std::string end(':' + cfg + ':' + sourcefile);
while (std::getline(fin,line)) {
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if (line.size() <= end.size() + 2U)
continue;
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if (!endsWith(line, end.c_str(), end.size()))
continue;
std::ostringstream ostr;
ostr << buildDir << '/' << line.substr(0,line.find(':'));
return ostr.str();
}
}
std::string filename = Path::fromNativeSeparators(buildDir);
if (!endsWith(filename, '/'))
filename += '/';
const std::string::size_type pos = sourcefile.rfind('/');
if (pos == std::string::npos)
filename += sourcefile;
else
filename += sourcefile.substr(pos+1);
filename += ".analyzerinfo";
return filename;
}
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bool AnalyzerInformation::analyzeFile(const std::string &buildDir, const std::string &sourcefile, const std::string &cfg, unsigned long long checksum, std::list<ErrorMessage> *errors)
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{
if (buildDir.empty() || sourcefile.empty())
return true;
close();
mAnalyzerInfoFile = AnalyzerInformation::getAnalyzerInfoFile(buildDir,sourcefile,cfg);
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if (skipAnalysis(mAnalyzerInfoFile, checksum, errors))
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return false;
mOutputStream.open(mAnalyzerInfoFile);
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if (mOutputStream.is_open()) {
mOutputStream << "<?xml version=\"1.0\"?>\n";
mOutputStream << "<analyzerinfo checksum=\"" << checksum << "\">\n";
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} else {
mAnalyzerInfoFile.clear();
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}
return true;
}
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void AnalyzerInformation::reportErr(const ErrorMessage &msg, bool /*verbose*/)
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{
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if (mOutputStream.is_open())
mOutputStream << msg.toXML() << '\n';
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}
void AnalyzerInformation::setFileInfo(const std::string &check, const std::string &fileInfo)
{
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if (mOutputStream.is_open() && !fileInfo.empty())
mOutputStream << " <FileInfo check=\"" << check << "\">\n" << fileInfo << " </FileInfo>\n";
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}