CMake/Source/cmFindPackageCommand.h
Brad King 71910b3fd4 Fix find_package() when <pkg>_DIR is wrong
When <pkg>_DIR is set to an incorrect version we search again and store
the result in the variable, even if it is <pkg>_DIR-NOTFOUND.

There was a bug in the case when the new search does not find anything
and the old value came from a cache entry with UNINITALIZED type.  The
command used to try to load a package configuration file from the last
place searched, and would leave the old wrong value in the entry.  This
commit fixes the behavior to avoid trying to load a missing file and to
set the value to <pkg>_DIR-NOTFOUND as expected.
2009-10-07 14:37:30 -04:00

142 lines
4.1 KiB
C++

/*============================================================================
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 cmFindPackageCommand_h
#define cmFindPackageCommand_h
#include "cmFindCommon.h"
class cmFindPackageFileList;
/** \class cmFindPackageCommand
* \brief Load settings from an external project.
*
* cmFindPackageCommand
*/
class cmFindPackageCommand : public cmFindCommon
{
public:
cmFindPackageCommand();
/**
* This is a virtual constructor for the command.
*/
virtual cmCommand* Clone()
{
return new cmFindPackageCommand;
}
/**
* This is called when the command is first encountered in
* the CMakeLists.txt file.
*/
virtual bool InitialPass(std::vector<std::string> const& args,
cmExecutionStatus &status);
/**
* This determines if the command is invoked when in script mode.
*/
virtual bool IsScriptable() { return true; }
/**
* The name of the command as specified in CMakeList.txt.
*/
virtual const char* GetName() { return "find_package";}
/**
* Succinct documentation.
*/
virtual const char* GetTerseDocumentation()
{
return "Load settings for an external project.";
}
/**
* More documentation.
*/
virtual const char* GetFullDocumentation();
cmTypeMacro(cmFindPackageCommand, cmFindCommon);
private:
void AppendSuccessInformation();
void AppendToProperty(const char* propertyName);
void SetModuleVariables(const std::string& components);
bool FindModule(bool& found);
void AddFindDefinition(const char* var, const char* val);
void RestoreFindDefinitions();
bool HandlePackageMode();
bool FindConfig();
bool FindPrefixedConfig();
bool FindFrameworkConfig();
bool FindAppBundleConfig();
enum PolicyScopeRule { NoPolicyScope, DoPolicyScope };
bool ReadListFile(const char* f, PolicyScopeRule psr);
void StoreVersionFound();
void ComputePrefixes();
void AddPrefixesCMakeEnvironment();
void AddPrefixesCMakeVariable();
void AddPrefixesSystemEnvironment();
void AddPrefixesRegistry();
void AddPrefixesBuilds();
void AddPrefixesCMakeSystemVariable();
void AddPrefixesUserGuess();
void AddPrefixesUserHints();
void ComputeFinalPrefixes();
void LoadPackageRegistryDir(std::string const& dir);
void LoadPackageRegistryWin();
bool CheckPackageRegistryEntry(std::istream& is);
bool SearchDirectory(std::string const& dir);
bool CheckDirectory(std::string const& dir);
bool FindConfigFile(std::string const& dir, std::string& file);
bool CheckVersion(std::string const& config_file);
bool CheckVersionFile(std::string const& version_file);
bool SearchPrefix(std::string const& prefix);
bool SearchFrameworkPrefix(std::string const& prefix_in);
bool SearchAppBundlePrefix(std::string const& prefix_in);
friend class cmFindPackageFileList;
struct OriginalDef { bool exists; std::string value; };
std::map<cmStdString, OriginalDef> OriginalDefs;
std::string CommandDocumentation;
cmStdString Name;
cmStdString Variable;
cmStdString Version;
unsigned int VersionMajor;
unsigned int VersionMinor;
unsigned int VersionPatch;
unsigned int VersionTweak;
unsigned int VersionCount;
bool VersionExact;
cmStdString FileFound;
cmStdString VersionFound;
unsigned int VersionFoundMajor;
unsigned int VersionFoundMinor;
unsigned int VersionFoundPatch;
unsigned int VersionFoundTweak;
unsigned int VersionFoundCount;
bool Quiet;
bool Required;
bool Compatibility_1_6;
bool NoModule;
bool NoRegistry;
bool NoBuilds;
bool DebugMode;
bool UseLib64Paths;
bool PolicyScope;
std::vector<std::string> Names;
std::vector<std::string> Configs;
};
#endif