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// **********************************************************************
//
// Copyright (c) 2003-2004 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#include <Slice/Preprocessor.h>
#include <algorithm>
#include <fstream>
#include <sys/types.h>
#include <sys/stat.h>
#ifndef _WIN32
# include <sys/wait.h>
#endif
using namespace std;
using namespace Slice;
Slice::Preprocessor::Preprocessor(const string& path, const string& fileName, const string& args) :
_path(path),
_fileName(fileName),
_args(args),
_cppHandle(0)
{
}
Slice::Preprocessor::~Preprocessor()
{
if(_cppHandle)
{
close();
}
}
string
Slice::Preprocessor::getBaseName()
{
string base(_fileName);
string suffix;
string::size_type pos = base.rfind('.');
if(pos != string::npos)
{
base.erase(pos);
}
return base;
}
FILE*
Slice::Preprocessor::preprocess(bool keepComments)
{
if(!checkInputFile())
{
return 0;
}
string cmd = searchIceCpp();
if(cmd.empty())
{
return 0;
}
if(keepComments)
{
cmd += " -C";
}
cmd += " " + _args + " " + _fileName;
//
// Open a pipe for reading to redirect icecpp output to _cppHandle.
//
#ifdef _WIN32
_cppHandle = _popen(cmd.c_str(), "r");
#else
_cppHandle = popen(cmd.c_str(), "r");
#endif
return _cppHandle;
}
void
Slice::Preprocessor::printMakefileDependencies()
{
if(!checkInputFile())
{
return;
}
string cmd = searchIceCpp();
if(cmd.empty())
{
return;
}
cmd += " -M " + _args + " " +_fileName;
//
// Open a pipe for writing to redirect icecpp output to the standard output.
//
#ifndef _WIN32
FILE* cppHandle = popen(cmd.c_str(), "w");
pclose(cppHandle);
#else
FILE* cppHandle = _popen(cmd.c_str(), "w");
_pclose(cppHandle);
#endif
}
bool
Slice::Preprocessor::close()
{
assert(_cppHandle);
#ifndef WIN32
int status = pclose(_cppHandle);
_cppHandle = 0;
if(WIFEXITED(status) && WEXITSTATUS(status) != 0)
{
return false;
}
#else
int status = _pclose(_cppHandle);
_cppHandle = 0;
if(status != 0)
{
return false;
}
#endif
return true;
}
bool
Slice::Preprocessor::checkInputFile()
{
string base(_fileName);
string suffix;
string::size_type pos = base.rfind('.');
if(pos != string::npos)
{
suffix = base.substr(pos);
transform(suffix.begin(), suffix.end(), suffix.begin(), ::tolower);
}
if(suffix != ".ice")
{
cerr << _path << ": input files must end with `.ice'" << endl;
return false;
}
ifstream test(_fileName.c_str());
if(!test)
{
cerr << _path << ": can't open `" << _fileName << "' for reading: " << strerror(errno) << endl;
return false;
}
test.close();
return true;
}
string
Slice::Preprocessor::searchIceCpp()
{
#ifndef WIN32
const char* icecpp = "icecpp";
#else
const char* icecpp = "icecpp.exe";
#endif
string::size_type pos = _path.find_last_of("/\\");
if(pos != string::npos)
{
string path = _path.substr(0, pos + 1);
path += icecpp;
struct stat st;
if(stat(path.c_str(), &st) == 0)
{
#ifndef WIN32
if(st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))
#else
if(st.st_mode & (S_IEXEC))
#endif
{
return path;
}
}
}
return icecpp;
}
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