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authorStephen Kelly <steveire@gmail.com>2015-10-20 22:12:31 (GMT)
committerStephen Kelly <steveire@gmail.com>2015-10-20 22:41:26 (GMT)
commit6a1e73281f216d2644dc3527be01c3d38b9e1263 (patch)
tree23e9ebff2976b7cfaa49d03a39d62db9b8edc662 /Source/cmMakeDepend.h
parent00f50b006cc9afd014374fabc10bdef1330075a2 (diff)
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cmMakeDepend: Inline into only user.
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-/*============================================================================
- CMake - Cross Platform Makefile Generator
- Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
-
- Distributed under the OSI-approved BSD License (the "License");
- see accompanying file Copyright.txt for details.
-
- This software is distributed WITHOUT ANY WARRANTY; without even the
- implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- See the License for more information.
-============================================================================*/
-#ifndef cmMakeDepend_h
-#define cmMakeDepend_h
-
-#include "cmMakefile.h"
-#include "cmSourceFile.h"
-#include "cmSystemTools.h"
-#include "cmGeneratorExpression.h"
-#include "cmAlgorithms.h"
-
-#include <cmsys/RegularExpression.hxx>
-#include <cmsys/FStream.hxx>
-
-/** \class cmDependInformation
- * \brief Store dependency information for a single source file.
- *
- * This structure stores the depend information for a single source file.
- */
-class cmDependInformation
-{
-public:
- /**
- * Construct with dependency generation marked not done; instance
- * not placed in cmMakefile's list.
- */
- cmDependInformation(): DependDone(false), SourceFile(0) {}
-
- /**
- * The set of files on which this one depends.
- */
- typedef std::set<cmDependInformation*> DependencySetType;
- DependencySetType DependencySet;
-
- /**
- * This flag indicates whether dependency checking has been
- * performed for this file.
- */
- bool DependDone;
-
- /**
- * If this object corresponds to a cmSourceFile instance, this points
- * to it.
- */
- const cmSourceFile *SourceFile;
-
- /**
- * Full path to this file.
- */
- std::string FullPath;
-
- /**
- * Full path not including file name.
- */
- std::string PathOnly;
-
- /**
- * Name used to #include this file.
- */
- std::string IncludeName;
-
- /**
- * This method adds the dependencies of another file to this one.
- */
- void AddDependencies(cmDependInformation* info)
- {
- if(this != info)
- {
- this->DependencySet.insert(info);
- }
- }
-};
-
-
-// cmMakeDepend is used to generate dependancy information for
-// the classes in a makefile
-class cmMakeDepend
-{
-public:
- /**
- * Construct the object with verbose turned off.
- */
- cmMakeDepend()
- {
- this->Verbose = false;
- this->IncludeFileRegularExpression.compile("^.*$");
- this->ComplainFileRegularExpression.compile("^$");
- }
-
- /**
- * Destructor.
- */
- virtual ~cmMakeDepend()
- {
- cmDeleteAll(this->DependInformationMap);
- }
-
- /**
- * Set the makefile that is used as a source of classes.
- */
- virtual void SetMakefile(cmMakefile* makefile)
- {
- this->Makefile = makefile;
-
- // Now extract the include file regular expression from the makefile.
- this->IncludeFileRegularExpression.compile(
- this->Makefile->GetIncludeRegularExpression());
- this->ComplainFileRegularExpression.compile(
- this->Makefile->GetComplainRegularExpression());
-
- // Now extract any include paths from the targets
- std::set<std::string> uniqueIncludes;
- std::vector<std::string> orderedAndUniqueIncludes;
- cmTargets &targets = this->Makefile->GetTargets();
- for (cmTargets::iterator l = targets.begin();
- l != targets.end(); ++l)
- {
- const char *incDirProp = l->second.GetProperty("INCLUDE_DIRECTORIES");
- if (!incDirProp)
- {
- continue;
- }
-
- std::string incDirs =
- cmGeneratorExpression::Preprocess(incDirProp,
- cmGeneratorExpression::StripAllGeneratorExpressions);
-
- std::vector<std::string> includes;
- cmSystemTools::ExpandListArgument(incDirs, includes);
-
- for(std::vector<std::string>::const_iterator j = includes.begin();
- j != includes.end(); ++j)
- {
- std::string path = *j;
- this->Makefile->ExpandVariablesInString(path);
- if(uniqueIncludes.insert(path).second)
- {
- orderedAndUniqueIncludes.push_back(path);
- }
- }
- }
-
- for(std::vector<std::string>::const_iterator
- it = orderedAndUniqueIncludes.begin();
- it != orderedAndUniqueIncludes.end();
- ++it)
- {
- this->AddSearchPath(*it);
- }
- }
-
- /**
- * Add a directory to the search path for include files.
- */
- virtual void AddSearchPath(const std::string& path)
- {
- this->IncludeDirectories.push_back(path);
- }
-
- /**
- * Generate dependencies for the file given. Returns a pointer to
- * the cmDependInformation object for the file.
- */
- const cmDependInformation* FindDependencies(const char* file)
- {
- cmDependInformation* info = this->GetDependInformation(file,0);
- this->GenerateDependInformation(info);
- return info;
- }
-
-protected:
- /**
- * Compute the depend information for this class.
- */
- virtual void DependWalk(cmDependInformation* info)
- {
- cmsys::RegularExpression includeLine
- ("^[ \t]*#[ \t]*include[ \t]*[<\"]([^\">]+)[\">]");
- cmsys::ifstream fin(info->FullPath.c_str());
- if(!fin)
- {
- cmSystemTools::Error("Cannot open ", info->FullPath.c_str());
- return;
- }
-
- // TODO: Write real read loop (see cmSystemTools::CopyFile).
- std::string line;
- while( cmSystemTools::GetLineFromStream(fin, line) )
- {
- if(includeLine.find(line.c_str()))
- {
- // extract the file being included
- std::string includeFile = includeLine.match(1);
- // see if the include matches the regular expression
- if(!this->IncludeFileRegularExpression.find(includeFile))
- {
- if(this->Verbose)
- {
- std::string message = "Skipping ";
- message += includeFile;
- message += " for file ";
- message += info->FullPath.c_str();
- cmSystemTools::Error(message.c_str(), 0);
- }
- continue;
- }
- // Add this file and all its dependencies.
- this->AddDependency(info, includeFile.c_str());
- }
- }
- }
-
- /**
- * Add a dependency. Possibly walk it for more dependencies.
- */
- virtual void AddDependency(cmDependInformation* info, const char* file)
- {
- cmDependInformation* dependInfo =
- this->GetDependInformation(file, info->PathOnly.c_str());
- this->GenerateDependInformation(dependInfo);
- info->AddDependencies(dependInfo);
- }
-
- /**
- * Fill in the given object with dependency information. If the
- * information is already complete, nothing is done.
- */
- void GenerateDependInformation(cmDependInformation* info)
- {
- // If dependencies are already done, stop now.
- if(info->DependDone)
- {
- return;
- }
- else
- {
- // Make sure we don't visit the same file more than once.
- info->DependDone = true;
- }
- const char* path = info->FullPath.c_str();
- if(!path)
- {
- cmSystemTools::Error(
- "Attempt to find dependencies for file without path!");
- return;
- }
-
- bool found = false;
-
- // If the file exists, use it to find dependency information.
- if(cmSystemTools::FileExists(path, true))
- {
- // Use the real file to find its dependencies.
- this->DependWalk(info);
- found = true;
- }
-
-
- // See if the cmSourceFile for it has any files specified as
- // dependency hints.
- if(info->SourceFile != 0)
- {
-
- // Get the cmSourceFile corresponding to this.
- const cmSourceFile& cFile = *(info->SourceFile);
- // See if there are any hints for finding dependencies for the missing
- // file.
- if(!cFile.GetDepends().empty())
- {
- // Dependency hints have been given. Use them to begin the
- // recursion.
- for(std::vector<std::string>::const_iterator file =
- cFile.GetDepends().begin(); file != cFile.GetDepends().end();
- ++file)
- {
- this->AddDependency(info, file->c_str());
- }
-
- // Found dependency information. We are done.
- found = true;
- }
- }
-
- if(!found)
- {
- // Try to find the file amongst the sources
- cmSourceFile *srcFile = this->Makefile->GetSource
- (cmSystemTools::GetFilenameWithoutExtension(path));
- if (srcFile)
- {
- if (srcFile->GetFullPath() == path)
- {
- found=true;
- }
- else
- {
- //try to guess which include path to use
- for(std::vector<std::string>::iterator t =
- this->IncludeDirectories.begin();
- t != this->IncludeDirectories.end(); ++t)
- {
- std::string incpath = *t;
- if (!incpath.empty() && incpath[incpath.size() - 1] != '/')
- {
- incpath = incpath + "/";
- }
- incpath = incpath + path;
- if (srcFile->GetFullPath() == incpath)
- {
- // set the path to the guessed path
- info->FullPath = incpath;
- found=true;
- }
- }
- }
- }
- }
-
- if(!found)
- {
- // Couldn't find any dependency information.
- if(this->ComplainFileRegularExpression.find(info->IncludeName.c_str()))
- {
- cmSystemTools::Error("error cannot find dependencies for ", path);
- }
- else
- {
- // Destroy the name of the file so that it won't be output as a
- // dependency.
- info->FullPath = "";
- }
- }
- }
-
- /**
- * Get an instance of cmDependInformation corresponding to the given file
- * name.
- */
- cmDependInformation* GetDependInformation(const char* file,
- const char *extraPath)
- {
- // Get the full path for the file so that lookup is unambiguous.
- std::string fullPath = this->FullPath(file, extraPath);
-
- // Try to find the file's instance of cmDependInformation.
- DependInformationMapType::const_iterator result =
- this->DependInformationMap.find(fullPath);
- if(result != this->DependInformationMap.end())
- {
- // Found an instance, return it.
- return result->second;
- }
- else
- {
- // Didn't find an instance. Create a new one and save it.
- cmDependInformation* info = new cmDependInformation;
- info->FullPath = fullPath;
- info->PathOnly = cmSystemTools::GetFilenamePath(fullPath);
- info->IncludeName = file;
- this->DependInformationMap[fullPath] = info;
- return info;
- }
- }
-
- /**
- * Find the full path name for the given file name.
- * This uses the include directories.
- * TODO: Cache path conversions to reduce FileExists calls.
- */
- std::string FullPath(const char *fname, const char *extraPath)
- {
- DirectoryToFileToPathMapType::iterator m;
- if(extraPath)
- {
- m = this->DirectoryToFileToPathMap.find(extraPath);
- }
- else
- {
- m = this->DirectoryToFileToPathMap.find("");
- }
-
- if(m != this->DirectoryToFileToPathMap.end())
- {
- FileToPathMapType& map = m->second;
- FileToPathMapType::iterator p = map.find(fname);
- if(p != map.end())
- {
- return p->second;
- }
- }
-
- if(cmSystemTools::FileExists(fname, true))
- {
- std::string fp = cmSystemTools::CollapseFullPath(fname);
- this->DirectoryToFileToPathMap[extraPath? extraPath: ""][fname] = fp;
- return fp;
- }
-
- for(std::vector<std::string>::iterator i =
- this->IncludeDirectories.begin();
- i != this->IncludeDirectories.end(); ++i)
- {
- std::string path = *i;
- if (!path.empty() && path[path.size() - 1] != '/')
- {
- path = path + "/";
- }
- path = path + fname;
- if(cmSystemTools::FileExists(path.c_str(), true)
- && !cmSystemTools::FileIsDirectory(path))
- {
- std::string fp = cmSystemTools::CollapseFullPath(path);
- this->DirectoryToFileToPathMap[extraPath? extraPath: ""][fname] = fp;
- return fp;
- }
- }
-
- if (extraPath)
- {
- std::string path = extraPath;
- if (!path.empty() && path[path.size() - 1] != '/')
- {
- path = path + "/";
- }
- path = path + fname;
- if(cmSystemTools::FileExists(path.c_str(), true)
- && !cmSystemTools::FileIsDirectory(path))
- {
- std::string fp = cmSystemTools::CollapseFullPath(path);
- this->DirectoryToFileToPathMap[extraPath][fname] = fp;
- return fp;
- }
- }
-
- // Couldn't find the file.
- return std::string(fname);
- }
-
- cmMakefile* Makefile;
- bool Verbose;
- cmsys::RegularExpression IncludeFileRegularExpression;
- cmsys::RegularExpression ComplainFileRegularExpression;
- std::vector<std::string> IncludeDirectories;
- typedef std::map<std::string, std::string> FileToPathMapType;
- typedef std::map<std::string, FileToPathMapType>
- DirectoryToFileToPathMapType;
- typedef std::map<std::string, cmDependInformation*>
- DependInformationMapType;
- DependInformationMapType DependInformationMap;
- DirectoryToFileToPathMapType DirectoryToFileToPathMap;
-};
-
-#endif