cppcheck/lib/analyzerinfo.cpp

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2016-10-29 12:18:11 +02:00
/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2016 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 "analyzerinfo.h"
#include "path.h"
#include <tinyxml2.h>
#include <sstream>
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AnalyzerInformation::AnalyzerInformation() {}
AnalyzerInformation::~AnalyzerInformation()
{
close();
}
void AnalyzerInformation::close()
{
analyzerInfoFile.clear();
if (fout.is_open()) {
fout << "</analyzerinfo>\n";
fout.close();
}
}
static bool skipAnalysis(const std::string &analyzerInfoFile, unsigned long long checksum, std::list<ErrorLogger::ErrorMessage> *errors)
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{
tinyxml2::XMLDocument doc;
tinyxml2::XMLError error = doc.LoadFile(analyzerInfoFile.c_str());
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->push_back(ErrorLogger::ErrorMessage(e));
}
return true;
}
std::string AnalyzerInformation::getAnalyzerInfoFile(const std::string &buildDir, const std::string &sourcefile)
{
const std::string files(buildDir + "/files.txt");
std::ifstream fin(files.c_str());
if (fin.is_open()) {
int id = 1;
std::string line;
while (std::getline(fin,line)) {
if (line == sourcefile) {
std::ostringstream ostr;
ostr << buildDir << '/' << id << ".analyzeinfo";
return ostr.str();
}
id++;
}
}
std::string filename = Path::fromNativeSeparators(buildDir);
if (filename.back() != '/')
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;
}
bool AnalyzerInformation::analyzeFile(const std::string &buildDir, const std::string &sourcefile, unsigned long long checksum, std::list<ErrorLogger::ErrorMessage> *errors)
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{
if (buildDir.empty() || sourcefile.empty())
return true;
close();
analyzerInfoFile = AnalyzerInformation::getAnalyzerInfoFile(buildDir,sourcefile);
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const std::string start = "<analyzerinfo checksum=\"" + std::to_string(checksum) + "\">";
if (skipAnalysis(analyzerInfoFile, checksum, errors)) {
return false;
}
fout.open(analyzerInfoFile);
if (fout.is_open()) {
fout << "<?xml version=\"1.0\"?>\n";
fout << start << '\n';
} else {
analyzerInfoFile.clear();
}
return true;
}
void AnalyzerInformation::reportErr(const ErrorLogger::ErrorMessage &msg, bool verbose)
{
if (fout.is_open())
fout << msg.toXML(verbose,2) << '\n';
}
void AnalyzerInformation::setFileInfo(const std::string &check, const std::string &fileInfo)
{
if (fout.is_open() && !fileInfo.empty())
fout << " <FileInfo check=\"" << check << "\">\n" << fileInfo << " </FileInfo>\n";
}