506 lines
16 KiB
C++
506 lines
16 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 "cmFindCommon.h"
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//----------------------------------------------------------------------------
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cmFindCommon::cmFindCommon()
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{
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this->FindRootPathMode = RootPathModeBoth;
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this->NoDefaultPath = false;
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this->NoCMakePath = false;
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this->NoCMakeEnvironmentPath = false;
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this->NoSystemEnvironmentPath = false;
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this->NoCMakeSystemPath = false;
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// OS X Bundle and Framework search policy. The default is to
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// search frameworks first on apple.
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#if defined(__APPLE__)
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this->SearchFrameworkFirst = true;
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this->SearchAppBundleFirst = true;
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#else
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this->SearchFrameworkFirst = false;
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this->SearchAppBundleFirst = false;
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#endif
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this->SearchFrameworkOnly = false;
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this->SearchFrameworkLast = false;
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this->SearchAppBundleOnly = false;
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this->SearchAppBundleLast = false;
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::GenerateDocumentation()
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{
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// Documentation components.
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this->GenericDocumentationMacPolicy =
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"On Darwin or systems supporting OS X Frameworks, the cmake variable"
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" CMAKE_FIND_FRAMEWORK can be set to empty or one of the following:\n"
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" \"FIRST\" - Try to find frameworks before standard\n"
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" libraries or headers. This is the default on Darwin.\n"
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" \"LAST\" - Try to find frameworks after standard\n"
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" libraries or headers.\n"
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" \"ONLY\" - Only try to find frameworks.\n"
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" \"NEVER\" - Never try to find frameworks.\n"
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"On Darwin or systems supporting OS X Application Bundles, the cmake "
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"variable CMAKE_FIND_APPBUNDLE can be set to empty or one of the "
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"following:\n"
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" \"FIRST\" - Try to find application bundles before standard\n"
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" programs. This is the default on Darwin.\n"
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" \"LAST\" - Try to find application bundles after standard\n"
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" programs.\n"
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" \"ONLY\" - Only try to find application bundles.\n"
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" \"NEVER\" - Never try to find application bundles.\n";
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this->GenericDocumentationRootPath =
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"The CMake variable CMAKE_FIND_ROOT_PATH specifies one or more "
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"directories to be prepended to all other search directories. "
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"This effectively \"re-roots\" the entire search under given locations. "
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"By default it is empty. It is especially useful when "
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"cross-compiling to point to the root directory of the "
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"target environment and CMake will search there too. By default at first "
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"the directories listed in CMAKE_FIND_ROOT_PATH and then the non-rooted "
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"directories will be searched. "
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"The default behavior can be adjusted by setting "
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"CMAKE_FIND_ROOT_PATH_MODE_XXX. This behavior can be manually "
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"overridden on a per-call basis. "
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"By using CMAKE_FIND_ROOT_PATH_BOTH the search order will "
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"be as described above. If NO_CMAKE_FIND_ROOT_PATH is used "
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"then CMAKE_FIND_ROOT_PATH will not be used. If ONLY_CMAKE_FIND_ROOT_PATH "
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"is used then only the re-rooted directories will be searched.\n";
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this->GenericDocumentationPathsOrder =
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"The default search order is designed to be most-specific to "
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"least-specific for common use cases. "
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"Projects may override the order by simply calling the command "
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"multiple times and using the NO_* options:\n"
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" FIND_XXX(FIND_ARGS_XXX PATHS paths... NO_DEFAULT_PATH)\n"
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" FIND_XXX(FIND_ARGS_XXX)\n"
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"Once one of the calls succeeds the result variable will be set "
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"and stored in the cache so that no call will search again.";
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}
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//----------------------------------------------------------------------------
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cmFindCommon::~cmFindCommon()
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{
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::SelectDefaultRootPathMode()
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{
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// Use both by default.
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this->FindRootPathMode = RootPathModeBoth;
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// Check the policy variable for this find command type.
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std::string findRootPathVar = "CMAKE_FIND_ROOT_PATH_MODE_";
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findRootPathVar += this->CMakePathName;
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std::string rootPathMode =
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this->Makefile->GetSafeDefinition(findRootPathVar.c_str());
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if (rootPathMode=="NEVER")
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{
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this->FindRootPathMode = RootPathModeNoRootPath;
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}
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else if (rootPathMode=="ONLY")
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{
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this->FindRootPathMode = RootPathModeOnlyRootPath;
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}
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else if (rootPathMode=="BOTH")
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{
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this->FindRootPathMode = RootPathModeBoth;
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::SelectDefaultMacMode()
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{
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std::string ff = this->Makefile->GetSafeDefinition("CMAKE_FIND_FRAMEWORK");
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if(ff == "NEVER")
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{
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this->SearchFrameworkLast = false;
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this->SearchFrameworkFirst = false;
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this->SearchFrameworkOnly = false;
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}
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else if(ff == "ONLY")
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{
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this->SearchFrameworkLast = false;
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this->SearchFrameworkFirst = false;
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this->SearchFrameworkOnly = true;
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}
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else if(ff == "FIRST")
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{
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this->SearchFrameworkLast = false;
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this->SearchFrameworkFirst = true;
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this->SearchFrameworkOnly = false;
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}
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else if(ff == "LAST")
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{
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this->SearchFrameworkLast = true;
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this->SearchFrameworkFirst = false;
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this->SearchFrameworkOnly = false;
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}
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std::string fab = this->Makefile->GetSafeDefinition("CMAKE_FIND_APPBUNDLE");
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if(fab == "NEVER")
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{
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this->SearchAppBundleLast = false;
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this->SearchAppBundleFirst = false;
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this->SearchAppBundleOnly = false;
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}
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else if(fab == "ONLY")
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{
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this->SearchAppBundleLast = false;
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this->SearchAppBundleFirst = false;
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this->SearchAppBundleOnly = true;
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}
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else if(fab == "FIRST")
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{
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this->SearchAppBundleLast = false;
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this->SearchAppBundleFirst = true;
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this->SearchAppBundleOnly = false;
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}
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else if(fab == "LAST")
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{
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this->SearchAppBundleLast = true;
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this->SearchAppBundleFirst = false;
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this->SearchAppBundleOnly = false;
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::RerootPaths(std::vector<std::string>& paths)
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{
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#if 0
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for(std::vector<std::string>::const_iterator i = paths.begin();
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i != paths.end(); ++i)
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{
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fprintf(stderr, "[%s]\n", i->c_str());
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}
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#endif
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// Short-circuit if there is nothing to do.
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if(this->FindRootPathMode == RootPathModeNoRootPath)
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{
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return;
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}
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const char* rootPath =
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this->Makefile->GetDefinition("CMAKE_FIND_ROOT_PATH");
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if((rootPath == 0) || (strlen(rootPath) == 0))
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{
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return;
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}
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// Construct the list of path roots with no trailing slashes.
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std::vector<std::string> roots;
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cmSystemTools::ExpandListArgument(rootPath, roots);
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for(std::vector<std::string>::iterator ri = roots.begin();
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ri != roots.end(); ++ri)
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{
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cmSystemTools::ConvertToUnixSlashes(*ri);
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}
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// Copy the original set of unrooted paths.
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std::vector<std::string> unrootedPaths = paths;
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paths.clear();
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for(std::vector<std::string>::const_iterator ri = roots.begin();
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ri != roots.end(); ++ri)
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{
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for(std::vector<std::string>::const_iterator ui = unrootedPaths.begin();
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ui != unrootedPaths.end(); ++ui)
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{
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// Place the unrooted path under the current root if it is not
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// already inside. Skip the unrooted path if it is relative to
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// a user home directory or is empty.
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std::string rootedDir;
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if(cmSystemTools::IsSubDirectory(ui->c_str(), ri->c_str()))
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{
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rootedDir = *ui;
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}
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else if(!ui->empty() && (*ui)[0] != '~')
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{
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// Start with the new root.
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rootedDir = *ri;
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rootedDir += "/";
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// Append the original path with its old root removed.
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rootedDir += cmSystemTools::SplitPathRootComponent(ui->c_str());
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}
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// Store the new path.
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paths.push_back(rootedDir);
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}
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}
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// If searching both rooted and unrooted paths add the original
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// paths again.
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if(this->FindRootPathMode == RootPathModeBoth)
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{
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paths.insert(paths.end(), unrootedPaths.begin(), unrootedPaths.end());
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::FilterPaths(std::vector<std::string>& paths,
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const std::set<std::string>& ignore)
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{
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// Now filter out anything that's in the ignore set.
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std::vector<std::string> unfiltered;
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unfiltered.swap(paths);
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for(std::vector<std::string>::iterator pi = unfiltered.begin();
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pi != unfiltered.end(); ++pi)
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{
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if (ignore.count(*pi) == 0)
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{
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paths.push_back(*pi);
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}
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::GetIgnoredPaths(std::vector<std::string>& ignore)
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{
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// null-terminated list of paths.
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static const char *paths[] =
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{ "CMAKE_SYSTEM_IGNORE_PATH", "CMAKE_IGNORE_PATH", 0 };
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// Construct the list of path roots with no trailing slashes.
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for(const char **pathName = paths; *pathName; ++pathName)
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{
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// Get the list of paths to ignore from the variable.
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const char* ignorePath = this->Makefile->GetDefinition(*pathName);
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if((ignorePath == 0) || (strlen(ignorePath) == 0))
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{
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continue;
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}
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cmSystemTools::ExpandListArgument(ignorePath, ignore);
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}
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for(std::vector<std::string>::iterator i = ignore.begin();
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i != ignore.end(); ++i)
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{
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cmSystemTools::ConvertToUnixSlashes(*i);
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::GetIgnoredPaths(std::set<std::string>& ignore)
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{
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std::vector<std::string> ignoreVec;
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GetIgnoredPaths(ignoreVec);
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ignore.insert(ignoreVec.begin(), ignoreVec.end());
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}
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//----------------------------------------------------------------------------
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bool cmFindCommon::CheckCommonArgument(std::string const& arg)
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{
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if(arg == "NO_DEFAULT_PATH")
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{
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this->NoDefaultPath = true;
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}
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else if(arg == "NO_CMAKE_ENVIRONMENT_PATH")
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{
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this->NoCMakeEnvironmentPath = true;
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}
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else if(arg == "NO_CMAKE_PATH")
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{
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this->NoCMakePath = true;
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}
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else if(arg == "NO_SYSTEM_ENVIRONMENT_PATH")
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{
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this->NoSystemEnvironmentPath = true;
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}
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else if(arg == "NO_CMAKE_SYSTEM_PATH")
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{
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this->NoCMakeSystemPath = true;
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}
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else if(arg == "NO_CMAKE_FIND_ROOT_PATH")
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{
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this->FindRootPathMode = RootPathModeNoRootPath;
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}
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else if(arg == "ONLY_CMAKE_FIND_ROOT_PATH")
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{
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this->FindRootPathMode = RootPathModeOnlyRootPath;
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}
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else if(arg == "CMAKE_FIND_ROOT_PATH_BOTH")
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{
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this->FindRootPathMode = RootPathModeBoth;
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}
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else
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{
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// The argument is not one of the above.
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return false;
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}
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// The argument is one of the above.
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return true;
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddPathSuffix(std::string const& arg)
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{
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std::string suffix = arg;
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// Strip leading and trailing slashes.
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if(suffix.empty())
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{
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return;
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}
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if(suffix[0] == '/')
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{
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suffix = suffix.substr(1, suffix.npos);
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}
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if(suffix.empty())
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{
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return;
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}
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if(suffix[suffix.size()-1] == '/')
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{
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suffix = suffix.substr(0, suffix.size()-1);
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}
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if(suffix.empty())
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{
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return;
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}
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// Store the suffix.
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this->SearchPathSuffixes.push_back(suffix);
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddUserPath(std::string const& p,
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std::vector<std::string>& paths)
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{
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// We should view the registry as the target application would view
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// it.
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cmSystemTools::KeyWOW64 view = cmSystemTools::KeyWOW64_32;
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cmSystemTools::KeyWOW64 other_view = cmSystemTools::KeyWOW64_64;
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if(this->Makefile->PlatformIs64Bit())
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{
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view = cmSystemTools::KeyWOW64_64;
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other_view = cmSystemTools::KeyWOW64_32;
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}
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// Expand using the view of the target application.
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std::string expanded = p;
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cmSystemTools::ExpandRegistryValues(expanded, view);
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cmSystemTools::GlobDirs(expanded.c_str(), paths);
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// Executables can be either 32-bit or 64-bit, so expand using the
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// alternative view.
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if(expanded != p && this->CMakePathName == "PROGRAM")
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{
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expanded = p;
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cmSystemTools::ExpandRegistryValues(expanded, other_view);
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cmSystemTools::GlobDirs(expanded.c_str(), paths);
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddCMakePath(const char* variable)
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{
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// Get a path from a CMake variable.
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if(const char* varPath = this->Makefile->GetDefinition(variable))
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{
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std::vector<std::string> tmp;
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cmSystemTools::ExpandListArgument(varPath, tmp);
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// Relative paths are interpreted with respect to the current
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// source directory.
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this->AddPathsInternal(tmp, CMakePath);
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddEnvPath(const char* variable)
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{
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// Get a path from the environment.
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std::vector<std::string> tmp;
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cmSystemTools::GetPath(tmp, variable);
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// Relative paths are interpreted with respect to the current
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// working directory.
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this->AddPathsInternal(tmp, EnvPath);
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddPathsInternal(std::vector<std::string> const& in_paths,
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PathType pathType)
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{
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for(std::vector<std::string>::const_iterator i = in_paths.begin();
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i != in_paths.end(); ++i)
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{
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this->AddPathInternal(*i, pathType);
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddPathInternal(std::string const& in_path,
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PathType pathType)
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{
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if(in_path.empty())
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{
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return;
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}
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// Select the base path with which to interpret relative paths.
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const char* relbase = 0;
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if(pathType == CMakePath)
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{
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relbase = this->Makefile->GetCurrentDirectory();
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}
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// Convert to clean full path.
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std::string fullPath =
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cmSystemTools::CollapseFullPath(in_path.c_str(), relbase);
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// Insert the path if has not already been emitted.
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if(this->SearchPathsEmitted.insert(fullPath).second)
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{
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this->SearchPaths.push_back(fullPath.c_str());
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::ComputeFinalPaths()
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{
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std::vector<std::string>& paths = this->SearchPaths;
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// Expand list of paths inside all search roots.
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this->RerootPaths(paths);
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// Add a trailing slash to all paths to aid the search process.
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for(std::vector<std::string>::iterator i = paths.begin();
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i != paths.end(); ++i)
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{
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std::string& p = *i;
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if(!p.empty() && p[p.size()-1] != '/')
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{
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p += "/";
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}
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::SetMakefile(cmMakefile* makefile)
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{
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cmCommand::SetMakefile(makefile);
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// If we are building for Apple (OSX or also iphone), make sure
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// that frameworks and bundles are searched first.
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if(this->Makefile->IsOn("APPLE"))
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{
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this->SearchFrameworkFirst = true;
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this->SearchAppBundleFirst = true;
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}
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}
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