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/***********************************************/
/**
* @file system.cpp
*
* @brief Operating system related functions.
*
* @author Andreas Kvas
* @date 2017-03-21
*
*/
/***********************************************/
#ifdef _WIN32
#define popen _popen
#define pclose _pclose
#endif
#include <ctime>
#include <filesystem>
#include "base/importStd.h"
#include "base/string.h"
#include "base/time.h"
#include "system.h"
/***********************************************/
Bool System::exec(const std::string &command, std::vector<std::string> &output)
{
try
{
std::FILE *pipe = popen(command.c_str(), "r");
if(!pipe)
throw(Exception("Cannot open pipe"));
char buffer[1024];
while(std::fgets(buffer, sizeof(buffer), pipe) != nullptr)
{
std::string line(buffer);
output.push_back(line.substr(0, line.find_last_of('\n')));
}
return (pclose(pipe) == 0);
}
catch(std::exception &e)
{
GROOPS_RETHROW(e)
}
}
/***********************************************/
Bool System::exec(const std::string &command)
{
std::vector<std::string> output;
return exec(command, output);
}
/***********************************************/
/***********************************************/
Bool System::createDirectories(const FileName &fileName)
{
if(isDirectory(fileName))
return TRUE;
return std::filesystem::create_directories(fileName.str());
}
/***********************************************/
Bool System::remove(const FileName &fileName)
{
return (std::filesystem::remove_all(fileName.str()) != 0);
}
/***********************************************/
Bool System::move(const FileName &fileNameOld, const FileName &fileNameNew)
{
try
{
if(!exists(fileNameOld))
return FALSE;
if(isDirectory(fileNameNew))
std::filesystem::rename(fileNameOld.str(), fileNameNew.append(fileNameOld.stripDirectory()).str());
else
std::filesystem::rename(fileNameOld.str(), fileNameNew.str());
return TRUE;
}
catch(std::exception &/*e*/)
{
return FALSE;
}
}
/***********************************************/
Bool System::exists(const FileName &fileName)
{
try
{
// contains no wildcards?
if(fileName.str().find_first_of("*?") == std::string::npos)
return std::filesystem::exists(fileName.str());
// split path into parts
std::vector<std::string> parts = String::split(fileName.str(), "/\\");
// deepest directory without wildcards
std::string path;
UInt level = 0;
while((level<parts.size()-1) && (parts.at(level).find_first_of("*?") == std::string::npos))
path += parts.at(level++) + "/";
if(path.empty())
path = currentWorkingDirectory().str() + "/";
// search directory for matching entries
const std::regex pattern = String::wildcard2regex(parts.at(level));
for(auto const &entry : std::filesystem::directory_iterator{path})
if(std::regex_match(entry.path().filename().string(), pattern))
{
if(level == parts.size()-1)
return TRUE;
if(std::filesystem::is_directory(entry))
{
// replace pattern by current entry
std::string path2 = path + entry.path().filename().string() + "/";
for(UInt i=level+1; i<parts.size()-1; i++)
path2 += parts.at(i) + "/";
if(exists(path2+parts.back()))
return TRUE;
}
}
return FALSE;
}
catch(std::exception &/*e*/)
{
return FALSE;
}
}
/***********************************************/
Bool System::isDirectory(const FileName &fileName)
{
return std::filesystem::is_directory(fileName.str());
}
/***********************************************/
FileName System::currentWorkingDirectory()
{
return FileName(std::filesystem::current_path().string());
}
/***********************************************/
std::vector<FileName> System::directoryListing(const FileName &path, const std::regex &pattern)
{
try
{
std::vector<FileName> files;
for(auto const &entry : std::filesystem::directory_iterator{path.str()})
if(std::filesystem::is_regular_file(entry) && std::regex_match(entry.path().filename().string(), pattern))
files.push_back(FileName(entry.path().filename().string()));
return files;
}
catch(std::exception &e)
{
GROOPS_RETHROW(e)
}
}
/***********************************************/
/***********************************************/
Time System::now()
{
std::time_t tt = std::time(nullptr);
std::tm t = *std::localtime(&tt);
return date2time(t.tm_year+1900, t.tm_mon+1, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec);
}
/***********************************************/
|
