CMake/Source/cmFindBase.cxx

396 lines
11 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.
============================================================================*/
#include "cmFindBase.h"
#include "cmAlgorithms.h"
#include "cmState.h"
cmFindBase::cmFindBase()
{
this->AlreadyInCache = false;
this->AlreadyInCacheWithoutMetaInfo = false;
this->NamesPerDir = false;
this->NamesPerDirAllowed = false;
}
bool cmFindBase::ParseArguments(std::vector<std::string> const& argsIn)
{
if(argsIn.size() < 2 )
{
this->SetError("called with incorrect number of arguments");
return false;
}
// copy argsIn into args so it can be modified,
// in the process extract the DOC "documentation"
size_t size = argsIn.size();
std::vector<std::string> args;
bool foundDoc = false;
for(unsigned int j = 0; j < size; ++j)
{
if(foundDoc || argsIn[j] != "DOC" )
{
if(argsIn[j] == "ENV")
{
if(j+1 < size)
{
j++;
cmSystemTools::GetPath(args, argsIn[j].c_str());
}
}
else
{
args.push_back(argsIn[j]);
}
}
else
{
if(j+1 < size)
{
foundDoc = true;
this->VariableDocumentation = argsIn[j+1];
j++;
if(j >= size)
{
break;
}
}
}
}
if(args.size() < 2 )
{
this->SetError("called with incorrect number of arguments");
return false;
}
this->VariableName = args[0];
if(this->CheckForVariableInCache())
{
this->AlreadyInCache = true;
return true;
}
this->AlreadyInCache = false;
// Find the current root path mode.
this->SelectDefaultRootPathMode();
// Find the current bundle/framework search policy.
this->SelectDefaultMacMode();
bool newStyle = false;
enum Doing { DoingNone, DoingNames, DoingPaths, DoingPathSuffixes,
DoingHints };
Doing doing = DoingNames; // assume it starts with a name
for (unsigned int j = 1; j < args.size(); ++j)
{
if(args[j] == "NAMES")
{
doing = DoingNames;
newStyle = true;
}
else if (args[j] == "PATHS")
{
doing = DoingPaths;
newStyle = true;
}
else if (args[j] == "HINTS")
{
doing = DoingHints;
newStyle = true;
}
else if (args[j] == "PATH_SUFFIXES")
{
doing = DoingPathSuffixes;
newStyle = true;
}
else if (args[j] == "NAMES_PER_DIR")
{
doing = DoingNone;
if(this->NamesPerDirAllowed)
{
this->NamesPerDir = true;
}
else
{
this->SetError("does not support NAMES_PER_DIR");
return false;
}
}
else if (args[j] == "NO_SYSTEM_PATH")
{
doing = DoingNone;
this->NoDefaultPath = true;
}
else if (this->CheckCommonArgument(args[j]))
{
doing = DoingNone;
// Some common arguments were accidentally supported by CMake
// 2.4 and 2.6.0 in the short-hand form of the command, so we
// must support it even though it is not documented.
}
else if(doing == DoingNames)
{
this->Names.push_back(args[j]);
}
else if(doing == DoingPaths)
{
this->UserGuessArgs.push_back(args[j]);
}
else if(doing == DoingHints)
{
this->UserHintsArgs.push_back(args[j]);
}
else if(doing == DoingPathSuffixes)
{
this->AddPathSuffix(args[j]);
}
}
if(this->VariableDocumentation.empty())
{
this->VariableDocumentation = "Where can ";
if(this->Names.empty())
{
this->VariableDocumentation += "the (unknown) library be found";
}
else if(this->Names.size() == 1)
{
this->VariableDocumentation += "the "
+ this->Names[0] + " library be found";
}
else
{
this->VariableDocumentation += "one of the ";
this->VariableDocumentation +=
cmJoin(cmMakeRange(this->Names).retreat(1), ", ");
this->VariableDocumentation += " or "
+ this->Names[this->Names.size() - 1] + " libraries be found";
}
}
// look for old style
// FIND_*(VAR name path1 path2 ...)
if(!newStyle)
{
// All the short-hand arguments have been recorded as names.
std::vector<std::string> shortArgs = this->Names;
this->Names.clear(); // clear out any values in Names
this->Names.push_back(shortArgs[0]);
this->UserGuessArgs.insert(this->UserGuessArgs.end(),
shortArgs.begin() + 1, shortArgs.end());
}
this->ExpandPaths();
this->ComputeFinalPaths();
return true;
}
void cmFindBase::ExpandPaths()
{
if(!this->NoDefaultPath)
{
if(!this->NoCMakePath)
{
this->FillCMakeVariablePath();
}
if(!this->NoCMakeEnvironmentPath)
{
this->FillCMakeEnvironmentPath();
}
}
this->FillUserHintsPath();
if(!this->NoDefaultPath)
{
if(!this->NoSystemEnvironmentPath)
{
this->FillSystemEnvironmentPath();
}
if(!this->NoCMakeSystemPath)
{
this->FillCMakeSystemVariablePath();
}
}
this->FillUserGuessPath();
}
void cmFindBase::FillCMakeEnvironmentPath()
{
cmSearchPath &paths = this->LabeledPaths[PathLabel::CMakeEnvironment];
// Add CMAKE_*_PATH environment variables
std::string var = "CMAKE_";
var += this->CMakePathName;
var += "_PATH";
paths.AddEnvPrefixPath("CMAKE_PREFIX_PATH");
paths.AddEnvPath(var);
if(this->CMakePathName == "PROGRAM")
{
paths.AddEnvPath("CMAKE_APPBUNDLE_PATH");
}
else
{
paths.AddEnvPath("CMAKE_FRAMEWORK_PATH");
}
paths.AddSuffixes(this->SearchPathSuffixes);
}
void cmFindBase::FillCMakeVariablePath()
{
cmSearchPath &paths = this->LabeledPaths[PathLabel::CMake];
// Add CMake varibles of the same name as the previous environment
// varibles CMAKE_*_PATH to be used most of the time with -D
// command line options
std::string var = "CMAKE_";
var += this->CMakePathName;
var += "_PATH";
paths.AddCMakePrefixPath("CMAKE_PREFIX_PATH");
paths.AddCMakePath(var);
if(this->CMakePathName == "PROGRAM")
{
paths.AddCMakePath("CMAKE_APPBUNDLE_PATH");
}
else
{
paths.AddCMakePath("CMAKE_FRAMEWORK_PATH");
}
paths.AddSuffixes(this->SearchPathSuffixes);
}
void cmFindBase::FillSystemEnvironmentPath()
{
cmSearchPath &paths = this->LabeledPaths[PathLabel::SystemEnvironment];
// Add LIB or INCLUDE
if(!this->EnvironmentPath.empty())
{
paths.AddEnvPath(this->EnvironmentPath);
#if defined(_WIN32) || defined(__CYGWIN__)
paths.AddEnvPrefixPath("PATH", true);
paths.AddEnvPath("PATH");
#endif
}
else
{
// Add PATH
paths.AddEnvPath("PATH");
}
paths.AddSuffixes(this->SearchPathSuffixes);
}
void cmFindBase::FillCMakeSystemVariablePath()
{
cmSearchPath &paths = this->LabeledPaths[PathLabel::CMakeSystem];
std::string var = "CMAKE_SYSTEM_";
var += this->CMakePathName;
var += "_PATH";
paths.AddCMakePrefixPath("CMAKE_SYSTEM_PREFIX_PATH");
paths.AddCMakePath(var);
if(this->CMakePathName == "PROGRAM")
{
paths.AddCMakePath("CMAKE_SYSTEM_APPBUNDLE_PATH");
}
else
{
paths.AddCMakePath("CMAKE_SYSTEM_FRAMEWORK_PATH");
}
paths.AddSuffixes(this->SearchPathSuffixes);
}
void cmFindBase::FillUserHintsPath()
{
cmSearchPath &paths = this->LabeledPaths[PathLabel::Hints];
for(std::vector<std::string>::const_iterator p = this->UserHintsArgs.begin();
p != this->UserHintsArgs.end(); ++p)
{
paths.AddUserPath(*p);
}
paths.AddSuffixes(this->SearchPathSuffixes);
}
void cmFindBase::FillUserGuessPath()
{
cmSearchPath &paths = this->LabeledPaths[PathLabel::Guess];
for(std::vector<std::string>::const_iterator p = this->UserGuessArgs.begin();
p != this->UserGuessArgs.end(); ++p)
{
paths.AddUserPath(*p);
}
paths.AddSuffixes(this->SearchPathSuffixes);
}
void cmFindBase::PrintFindStuff()
{
std::cerr << "SearchFrameworkLast: " << this->SearchFrameworkLast << "\n";
std::cerr << "SearchFrameworkOnly: " << this->SearchFrameworkOnly << "\n";
std::cerr << "SearchFrameworkFirst: " << this->SearchFrameworkFirst << "\n";
std::cerr << "SearchAppBundleLast: " << this->SearchAppBundleLast << "\n";
std::cerr << "SearchAppBundleOnly: " << this->SearchAppBundleOnly << "\n";
std::cerr << "SearchAppBundleFirst: " << this->SearchAppBundleFirst << "\n";
std::cerr << "VariableName " << this->VariableName << "\n";
std::cerr << "VariableDocumentation "
<< this->VariableDocumentation << "\n";
std::cerr << "NoDefaultPath " << this->NoDefaultPath << "\n";
std::cerr << "NoCMakeEnvironmentPath "
<< this->NoCMakeEnvironmentPath << "\n";
std::cerr << "NoCMakePath " << this->NoCMakePath << "\n";
std::cerr << "NoSystemEnvironmentPath "
<< this->NoSystemEnvironmentPath << "\n";
std::cerr << "NoCMakeSystemPath " << this->NoCMakeSystemPath << "\n";
std::cerr << "EnvironmentPath " << this->EnvironmentPath << "\n";
std::cerr << "CMakePathName " << this->CMakePathName << "\n";
std::cerr << "Names " << cmJoin(this->Names, " ") << "\n";
std::cerr << "\n";
std::cerr << "SearchPathSuffixes ";
std::cerr << cmJoin(this->SearchPathSuffixes, "\n") << "\n";
std::cerr << "SearchPaths\n";
std::cerr << cmWrap("[", this->SearchPaths, "]", "\n") << "\n";
}
bool cmFindBase::CheckForVariableInCache()
{
if(const char* cacheValue =
this->Makefile->GetDefinition(this->VariableName))
{
cmState* state = this->Makefile->GetState();
const char* cacheEntry = state->GetCacheEntryValue(this->VariableName);
bool found = !cmSystemTools::IsNOTFOUND(cacheValue);
bool cached = cacheEntry ? true : false;
if(found)
{
// If the user specifies the entry on the command line without a
// type we should add the type and docstring but keep the
// original value. Tell the subclass implementations to do
// this.
if(cached && state->GetCacheEntryType(this->VariableName)
== cmState::UNINITIALIZED)
{
this->AlreadyInCacheWithoutMetaInfo = true;
}
return true;
}
else if(cached)
{
const char* hs = state->GetCacheEntryProperty(this->VariableName,
"HELPSTRING");
this->VariableDocumentation = hs?hs:"(none)";
}
}
return false;
}