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