145 lines
4.3 KiB
C++
145 lines
4.3 KiB
C++
/*=========================================================================
|
|
|
|
Program: CMake - Cross-Platform Makefile Generator
|
|
Module: $RCSfile$
|
|
Language: C++
|
|
Date: $Date$
|
|
Version: $Revision$
|
|
|
|
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
|
|
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
|
|
|
|
This software is distributed WITHOUT ANY WARRANTY; without even
|
|
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
PURPOSE. See the above copyright notices for more information.
|
|
|
|
=========================================================================*/
|
|
#include "cmDepends.h"
|
|
|
|
#include "cmGeneratedFileStream.h"
|
|
#include "cmSystemTools.h"
|
|
|
|
#include <assert.h>
|
|
|
|
//----------------------------------------------------------------------------
|
|
cmDepends::cmDepends()
|
|
{
|
|
m_Verbose = false;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------
|
|
cmDepends::~cmDepends()
|
|
{
|
|
}
|
|
|
|
void cmDepends::SetTargetFile(const char* dir, const char* targetFile,
|
|
const char *markExt, const char *makeExt)
|
|
{
|
|
m_Directory = dir;
|
|
m_TargetFile = targetFile;
|
|
|
|
// Construct the path to the make and mark files. Append
|
|
// appropriate extensions to their names.
|
|
m_DependsMarkFile = dir;
|
|
m_DependsMakeFile = dir;
|
|
m_DependsMakeFile += "/";
|
|
m_DependsMarkFile += "/";
|
|
m_DependsMakeFile += m_TargetFile;
|
|
m_DependsMarkFile += m_TargetFile;
|
|
m_DependsMakeFile += makeExt;
|
|
m_DependsMarkFile += markExt;
|
|
|
|
if (!m_CompileDirectory.size())
|
|
{
|
|
m_CompileDirectory = dir;
|
|
}
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------------
|
|
bool cmDepends::Write()
|
|
{
|
|
// Dependency generation must always be done in the current working
|
|
// directory.
|
|
assert(m_Directory == ".");
|
|
|
|
// Try to generate dependencies for the target file.
|
|
cmGeneratedFileStream fout(m_DependsMakeFile.c_str());
|
|
fout << "# Dependencies for " << m_TargetFile.c_str() << std::endl;
|
|
if(this->WriteDependencies(fout) && fout)
|
|
{
|
|
// Dependencies were generated. Touch the mark file.
|
|
std::ofstream fmark(m_DependsMarkFile.c_str());
|
|
fmark << "Dependencies updated for " << m_TargetFile.c_str() << std::endl;
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------------
|
|
void cmDepends::Check()
|
|
{
|
|
// Dependency checks must be done in proper working directory.
|
|
std::string oldcwd = ".";
|
|
if(m_CompileDirectory != ".")
|
|
{
|
|
// Get the CWD but do not call CollapseFullPath because
|
|
// we only need it to cd back, and the form does not matter
|
|
oldcwd = cmSystemTools::GetCurrentWorkingDirectory(false);
|
|
cmSystemTools::ChangeDirectory(m_CompileDirectory.c_str());
|
|
}
|
|
|
|
// Check whether dependencies must be regenerated.
|
|
std::ifstream fin(m_DependsMakeFile.c_str());
|
|
if(!(fin && this->CheckDependencies(fin)))
|
|
{
|
|
// Clear all dependencies so they will be regenerated.
|
|
this->Clear();
|
|
}
|
|
|
|
// Restore working directory.
|
|
if(oldcwd != ".")
|
|
{
|
|
cmSystemTools::ChangeDirectory(oldcwd.c_str());
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------------
|
|
void cmDepends::Clear()
|
|
{
|
|
// Print verbose output.
|
|
if(m_Verbose)
|
|
{
|
|
cmOStringStream msg;
|
|
msg << "Clearing dependencies for \"" << m_TargetFile << "\"." << std::endl;
|
|
cmSystemTools::Stdout(msg.str().c_str());
|
|
}
|
|
|
|
// Remove the dependency mark file to be sure dependencies will be
|
|
// regenerated.
|
|
cmSystemTools::RemoveFile(m_DependsMarkFile.c_str());
|
|
|
|
// Write an empty dependency file.
|
|
cmGeneratedFileStream depFileStream(m_DependsMakeFile.c_str());
|
|
depFileStream
|
|
<< "# Empty dependencies file for " << m_TargetFile.c_str() << ".\n"
|
|
<< "# This may be replaced when dependencies are built." << std::endl;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------
|
|
const char* cmDepends::GetMakeFileName()
|
|
{
|
|
// Skip over the directory part of the name.
|
|
return m_DependsMakeFile.c_str() + m_Directory.length() + 1;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------
|
|
const char* cmDepends::GetMarkFileName()
|
|
{
|
|
// Skip over the directory part of the name.
|
|
return m_DependsMarkFile.c_str() + m_Directory.length() + 1;
|
|
}
|