637 lines
18 KiB
C++
637 lines
18 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#include "cmOutputRequiredFilesCommand.h"
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#include "cmAlgorithms.h"
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#include <cmsys/FStream.hxx>
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/** \class cmDependInformation
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* \brief Store dependency information for a single source file.
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*
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* This structure stores the depend information for a single source file.
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*/
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class cmDependInformation
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{
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public:
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/**
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* Construct with dependency generation marked not done; instance
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* not placed in cmMakefile's list.
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*/
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cmDependInformation(): DependDone(false), SourceFile(0) {}
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/**
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* The set of files on which this one depends.
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*/
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typedef std::set<cmDependInformation*> DependencySetType;
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DependencySetType DependencySet;
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/**
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* This flag indicates whether dependency checking has been
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* performed for this file.
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*/
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bool DependDone;
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/**
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* If this object corresponds to a cmSourceFile instance, this points
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* to it.
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*/
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const cmSourceFile *SourceFile;
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/**
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* Full path to this file.
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*/
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std::string FullPath;
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/**
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* Full path not including file name.
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*/
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std::string PathOnly;
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/**
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* Name used to #include this file.
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*/
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std::string IncludeName;
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/**
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* This method adds the dependencies of another file to this one.
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*/
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void AddDependencies(cmDependInformation* info)
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{
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if(this != info)
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{
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this->DependencySet.insert(info);
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}
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}
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};
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class cmLBDepend
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{
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public:
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/**
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* Construct the object with verbose turned off.
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*/
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cmLBDepend()
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{
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this->Verbose = false;
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this->IncludeFileRegularExpression.compile("^.*$");
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this->ComplainFileRegularExpression.compile("^$");
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}
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/**
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* Destructor.
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*/
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~cmLBDepend()
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{
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cmDeleteAll(this->DependInformationMap);
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}
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/**
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* Set the makefile that is used as a source of classes.
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*/
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void SetMakefile(cmMakefile* makefile)
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{
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this->Makefile = makefile;
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// Now extract the include file regular expression from the makefile.
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this->IncludeFileRegularExpression.compile(
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this->Makefile->GetIncludeRegularExpression());
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this->ComplainFileRegularExpression.compile(
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this->Makefile->GetComplainRegularExpression());
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// Now extract any include paths from the targets
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std::set<std::string> uniqueIncludes;
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std::vector<std::string> orderedAndUniqueIncludes;
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cmTargets &targets = this->Makefile->GetTargets();
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for (cmTargets::iterator l = targets.begin();
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l != targets.end(); ++l)
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{
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const char *incDirProp = l->second.GetProperty("INCLUDE_DIRECTORIES");
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if (!incDirProp)
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{
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continue;
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}
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std::string incDirs =
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cmGeneratorExpression::Preprocess(incDirProp,
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cmGeneratorExpression::StripAllGeneratorExpressions);
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std::vector<std::string> includes;
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cmSystemTools::ExpandListArgument(incDirs, includes);
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for(std::vector<std::string>::const_iterator j = includes.begin();
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j != includes.end(); ++j)
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{
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std::string path = *j;
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this->Makefile->ExpandVariablesInString(path);
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if(uniqueIncludes.insert(path).second)
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{
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orderedAndUniqueIncludes.push_back(path);
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}
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}
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}
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for(std::vector<std::string>::const_iterator
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it = orderedAndUniqueIncludes.begin();
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it != orderedAndUniqueIncludes.end();
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++it)
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{
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this->AddSearchPath(*it);
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}
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}
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/**
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* Add a directory to the search path for include files.
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*/
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void AddSearchPath(const std::string& path)
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{
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this->IncludeDirectories.push_back(path);
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}
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/**
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* Generate dependencies for the file given. Returns a pointer to
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* the cmDependInformation object for the file.
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*/
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const cmDependInformation* FindDependencies(const char* file)
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{
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cmDependInformation* info = this->GetDependInformation(file,0);
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this->GenerateDependInformation(info);
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return info;
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}
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protected:
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/**
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* Compute the depend information for this class.
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*/
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void DependWalk(cmDependInformation* info)
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{
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cmsys::ifstream fin(info->FullPath.c_str());
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if(!fin)
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{
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cmSystemTools::Error("error can not open ", info->FullPath.c_str());
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return;
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}
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std::string line;
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while(cmSystemTools::GetLineFromStream(fin, line))
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{
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if(cmHasLiteralPrefix(line.c_str(), "#include"))
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{
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// if it is an include line then create a string class
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std::string currentline = line;
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size_t qstart = currentline.find('\"', 8);
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size_t qend;
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// if a quote is not found look for a <
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if(qstart == std::string::npos)
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{
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qstart = currentline.find('<', 8);
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// if a < is not found then move on
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if(qstart == std::string::npos)
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{
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cmSystemTools::Error("unknown include directive ",
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currentline.c_str() );
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continue;
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}
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else
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{
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qend = currentline.find('>', qstart+1);
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}
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}
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else
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{
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qend = currentline.find('\"', qstart+1);
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}
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// extract the file being included
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std::string includeFile =
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currentline.substr(qstart+1, qend - qstart-1);
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// see if the include matches the regular expression
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if(!this->IncludeFileRegularExpression.find(includeFile))
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{
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if(this->Verbose)
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{
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std::string message = "Skipping ";
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message += includeFile;
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message += " for file ";
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message += info->FullPath.c_str();
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cmSystemTools::Error(message.c_str(), 0);
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}
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continue;
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}
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// Add this file and all its dependencies.
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this->AddDependency(info, includeFile.c_str());
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/// add the cxx file if it exists
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std::string cxxFile = includeFile;
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std::string::size_type pos = cxxFile.rfind('.');
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if(pos != std::string::npos)
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{
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std::string root = cxxFile.substr(0, pos);
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cxxFile = root + ".cxx";
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bool found = false;
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// try jumping to .cxx .cpp and .c in order
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if(cmSystemTools::FileExists(cxxFile.c_str()))
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{
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found = true;
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}
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for(std::vector<std::string>::iterator i =
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this->IncludeDirectories.begin();
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i != this->IncludeDirectories.end(); ++i)
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{
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std::string path = *i;
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path = path + "/";
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path = path + cxxFile;
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if(cmSystemTools::FileExists(path.c_str()))
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{
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found = true;
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}
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}
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if (!found)
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{
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cxxFile = root + ".cpp";
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if(cmSystemTools::FileExists(cxxFile.c_str()))
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{
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found = true;
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}
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for(std::vector<std::string>::iterator i =
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this->IncludeDirectories.begin();
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i != this->IncludeDirectories.end(); ++i)
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{
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std::string path = *i;
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path = path + "/";
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path = path + cxxFile;
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if(cmSystemTools::FileExists(path.c_str()))
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{
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found = true;
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}
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}
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}
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if (!found)
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{
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cxxFile = root + ".c";
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if(cmSystemTools::FileExists(cxxFile.c_str()))
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{
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found = true;
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}
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for(std::vector<std::string>::iterator i =
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this->IncludeDirectories.begin();
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i != this->IncludeDirectories.end(); ++i)
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{
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std::string path = *i;
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path = path + "/";
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path = path + cxxFile;
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if(cmSystemTools::FileExists(path.c_str()))
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{
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found = true;
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}
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}
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}
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if (!found)
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{
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cxxFile = root + ".txx";
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if(cmSystemTools::FileExists(cxxFile.c_str()))
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{
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found = true;
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}
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for(std::vector<std::string>::iterator i =
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this->IncludeDirectories.begin();
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i != this->IncludeDirectories.end(); ++i)
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{
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std::string path = *i;
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path = path + "/";
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path = path + cxxFile;
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if(cmSystemTools::FileExists(path.c_str()))
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{
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found = true;
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}
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}
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}
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if (found)
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{
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this->AddDependency(info, cxxFile.c_str());
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}
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}
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}
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}
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}
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/**
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* Add a dependency. Possibly walk it for more dependencies.
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*/
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void AddDependency(cmDependInformation* info, const char* file)
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{
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cmDependInformation* dependInfo =
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this->GetDependInformation(file, info->PathOnly.c_str());
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this->GenerateDependInformation(dependInfo);
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info->AddDependencies(dependInfo);
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}
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/**
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* Fill in the given object with dependency information. If the
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* information is already complete, nothing is done.
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*/
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void GenerateDependInformation(cmDependInformation* info)
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{
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// If dependencies are already done, stop now.
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if(info->DependDone)
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{
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return;
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}
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else
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{
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// Make sure we don't visit the same file more than once.
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info->DependDone = true;
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}
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const char* path = info->FullPath.c_str();
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if(!path)
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{
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cmSystemTools::Error(
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"Attempt to find dependencies for file without path!");
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return;
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}
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bool found = false;
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// If the file exists, use it to find dependency information.
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if(cmSystemTools::FileExists(path, true))
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{
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// Use the real file to find its dependencies.
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this->DependWalk(info);
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found = true;
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}
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// See if the cmSourceFile for it has any files specified as
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// dependency hints.
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if(info->SourceFile != 0)
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{
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// Get the cmSourceFile corresponding to this.
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const cmSourceFile& cFile = *(info->SourceFile);
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// See if there are any hints for finding dependencies for the missing
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// file.
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if(!cFile.GetDepends().empty())
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{
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// Dependency hints have been given. Use them to begin the
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// recursion.
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for(std::vector<std::string>::const_iterator file =
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cFile.GetDepends().begin(); file != cFile.GetDepends().end();
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++file)
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{
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this->AddDependency(info, file->c_str());
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}
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// Found dependency information. We are done.
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found = true;
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}
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}
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if(!found)
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{
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// Try to find the file amongst the sources
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cmSourceFile *srcFile = this->Makefile->GetSource
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(cmSystemTools::GetFilenameWithoutExtension(path));
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if (srcFile)
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{
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if (srcFile->GetFullPath() == path)
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{
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found=true;
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}
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else
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{
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//try to guess which include path to use
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for(std::vector<std::string>::iterator t =
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this->IncludeDirectories.begin();
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t != this->IncludeDirectories.end(); ++t)
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{
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std::string incpath = *t;
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if (!incpath.empty() && incpath[incpath.size() - 1] != '/')
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{
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incpath = incpath + "/";
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}
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incpath = incpath + path;
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if (srcFile->GetFullPath() == incpath)
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{
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// set the path to the guessed path
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info->FullPath = incpath;
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found=true;
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}
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}
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}
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}
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}
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if(!found)
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{
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// Couldn't find any dependency information.
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if(this->ComplainFileRegularExpression.find(info->IncludeName.c_str()))
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{
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cmSystemTools::Error("error cannot find dependencies for ", path);
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}
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else
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{
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// Destroy the name of the file so that it won't be output as a
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// dependency.
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info->FullPath = "";
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}
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}
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}
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/**
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* Get an instance of cmDependInformation corresponding to the given file
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* name.
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*/
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cmDependInformation* GetDependInformation(const char* file,
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const char *extraPath)
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{
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// Get the full path for the file so that lookup is unambiguous.
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std::string fullPath = this->FullPath(file, extraPath);
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// Try to find the file's instance of cmDependInformation.
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DependInformationMapType::const_iterator result =
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this->DependInformationMap.find(fullPath);
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if(result != this->DependInformationMap.end())
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{
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// Found an instance, return it.
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return result->second;
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}
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else
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{
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// Didn't find an instance. Create a new one and save it.
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cmDependInformation* info = new cmDependInformation;
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info->FullPath = fullPath;
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info->PathOnly = cmSystemTools::GetFilenamePath(fullPath);
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info->IncludeName = file;
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this->DependInformationMap[fullPath] = info;
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return info;
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}
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}
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/**
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* Find the full path name for the given file name.
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* This uses the include directories.
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* TODO: Cache path conversions to reduce FileExists calls.
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*/
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std::string FullPath(const char *fname, const char *extraPath)
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{
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DirectoryToFileToPathMapType::iterator m;
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if(extraPath)
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{
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m = this->DirectoryToFileToPathMap.find(extraPath);
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}
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else
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{
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m = this->DirectoryToFileToPathMap.find("");
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}
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if(m != this->DirectoryToFileToPathMap.end())
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{
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FileToPathMapType& map = m->second;
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FileToPathMapType::iterator p = map.find(fname);
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if(p != map.end())
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{
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return p->second;
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}
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}
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if(cmSystemTools::FileExists(fname, true))
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{
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std::string fp = cmSystemTools::CollapseFullPath(fname);
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this->DirectoryToFileToPathMap[extraPath? extraPath: ""][fname] = fp;
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return fp;
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}
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for(std::vector<std::string>::iterator i =
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this->IncludeDirectories.begin();
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i != this->IncludeDirectories.end(); ++i)
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{
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std::string path = *i;
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if (!path.empty() && path[path.size() - 1] != '/')
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{
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path = path + "/";
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}
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path = path + fname;
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if(cmSystemTools::FileExists(path.c_str(), true)
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&& !cmSystemTools::FileIsDirectory(path))
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{
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std::string fp = cmSystemTools::CollapseFullPath(path);
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this->DirectoryToFileToPathMap[extraPath? extraPath: ""][fname] = fp;
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return fp;
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}
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}
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if (extraPath)
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{
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std::string path = extraPath;
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if (!path.empty() && path[path.size() - 1] != '/')
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{
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path = path + "/";
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}
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path = path + fname;
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if(cmSystemTools::FileExists(path.c_str(), true)
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&& !cmSystemTools::FileIsDirectory(path))
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{
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std::string fp = cmSystemTools::CollapseFullPath(path);
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this->DirectoryToFileToPathMap[extraPath][fname] = fp;
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return fp;
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}
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}
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// Couldn't find the file.
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return std::string(fname);
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}
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cmMakefile* Makefile;
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bool Verbose;
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cmsys::RegularExpression IncludeFileRegularExpression;
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cmsys::RegularExpression ComplainFileRegularExpression;
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std::vector<std::string> IncludeDirectories;
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typedef std::map<std::string, std::string> FileToPathMapType;
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typedef std::map<std::string, FileToPathMapType>
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DirectoryToFileToPathMapType;
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typedef std::map<std::string, cmDependInformation*>
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DependInformationMapType;
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DependInformationMapType DependInformationMap;
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DirectoryToFileToPathMapType DirectoryToFileToPathMap;
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};
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// cmOutputRequiredFilesCommand
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bool cmOutputRequiredFilesCommand
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::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
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{
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if(this->Disallowed(cmPolicies::CMP0032,
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"The output_required_files command should not be called; see CMP0032."))
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{ return true; }
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if(args.size() != 2 )
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{
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this->SetError("called with incorrect number of arguments");
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return false;
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}
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// store the arg for final pass
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this->File = args[0];
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this->OutputFile = args[1];
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// compute the list of files
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cmLBDepend md;
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md.SetMakefile(this->Makefile);
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md.AddSearchPath(this->Makefile->GetCurrentSourceDirectory());
|
|
// find the depends for a file
|
|
const cmDependInformation *info = md.FindDependencies(this->File.c_str());
|
|
if (info)
|
|
{
|
|
// write them out
|
|
FILE *fout = cmsys::SystemTools::Fopen(this->OutputFile.c_str(),"w");
|
|
if(!fout)
|
|
{
|
|
std::string err = "Can not open output file: ";
|
|
err += this->OutputFile;
|
|
this->SetError(err);
|
|
return false;
|
|
}
|
|
std::set<cmDependInformation const*> visited;
|
|
this->ListDependencies(info,fout, &visited);
|
|
fclose(fout);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void cmOutputRequiredFilesCommand::
|
|
ListDependencies(cmDependInformation const *info,
|
|
FILE *fout,
|
|
std::set<cmDependInformation const*> *visited)
|
|
{
|
|
// add info to the visited set
|
|
visited->insert(info);
|
|
// now recurse with info's dependencies
|
|
for(cmDependInformation::DependencySetType::const_iterator d =
|
|
info->DependencySet.begin();
|
|
d != info->DependencySet.end(); ++d)
|
|
{
|
|
if (visited->find(*d) == visited->end())
|
|
{
|
|
if(info->FullPath != "")
|
|
{
|
|
std::string tmp = (*d)->FullPath;
|
|
std::string::size_type pos = tmp.rfind('.');
|
|
if(pos != std::string::npos && (tmp.substr(pos) != ".h"))
|
|
{
|
|
tmp = tmp.substr(0, pos);
|
|
fprintf(fout,"%s\n",(*d)->FullPath.c_str());
|
|
}
|
|
}
|
|
this->ListDependencies(*d,fout,visited);
|
|
}
|
|
}
|
|
}
|
|
|