mirror of
https://github.com/reactos/CMake.git
synced 2024-11-28 14:01:21 +00:00
b424df917d
- Use CMAKE_PREFIX_PATH and CMAKE_SYSTEM_PREFIX_PATH among other means
to locate package configuration files.
- Create cmFindCommon as base for cmFindBase and cmFindPackageCommand
- Move common functionality up to cmFindCommon
- Improve documentation of FIND_* commands.
- Fix FIND_* commands to not add framework/app paths in wrong place.
480 lines
15 KiB
C++
480 lines
15 KiB
C++
/*=========================================================================
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Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile$
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Language: C++
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Date: $Date$
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Version: $Revision$
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Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices 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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// 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 reason the paths listed in the call to the command are searched "
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"last is that most users of CMake would expect things to be found "
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"first in the locations specified by their environment. Projects may "
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"override this behavior by simply calling the command twice:\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 these calls succeeds the result variable will be set "
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"and stored in the cache so that neither 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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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::GetAppBundlePaths(std::vector<std::string>& paths)
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{
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if(this->NoDefaultPath)
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{
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return;
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}
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std::vector<std::string> tmp;
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// first environment variables
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if(!this->NoCMakeEnvironmentPath)
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{
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cmSystemTools::GetPath(tmp, "CMAKE_APPBUNDLE_PATH");
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this->AddPathsInternal(paths, tmp, EnvPath);
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tmp.clear();
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}
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// add cmake variables
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if(!this->NoCMakePath)
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{
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if(const char* path =
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this->Makefile->GetDefinition("CMAKE_APPBUNDLE_PATH"))
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{
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cmSystemTools::ExpandListArgument(path, tmp);
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this->AddPathsInternal(paths, tmp, CMakePath);
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tmp.clear();
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}
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}
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// add cmake system variables
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if(!this->NoCMakeSystemPath)
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{
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if(const char* path =
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this->Makefile->GetDefinition("CMAKE_SYSTEM_APPBUNDLE_PATH"))
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{
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cmSystemTools::ExpandListArgument(path, tmp);
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this->AddPathsInternal(paths, tmp, CMakePath);
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tmp.clear();
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}
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::GetFrameworkPaths(std::vector<std::string>& paths)
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{
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if(this->NoDefaultPath)
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{
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return;
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}
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std::vector<std::string> tmp;
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// first environment variables
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if(!this->NoCMakeEnvironmentPath)
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{
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cmSystemTools::GetPath(tmp, "CMAKE_FRAMEWORK_PATH");
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this->AddPathsInternal(paths, tmp, EnvPath);
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tmp.clear();
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}
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// add cmake variables
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if(!this->NoCMakePath)
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{
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if(const char* path =
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this->Makefile->GetDefinition("CMAKE_FRAMEWORK_PATH"))
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{
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cmSystemTools::ExpandListArgument(path, tmp);
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this->AddPathsInternal(paths, tmp, CMakePath);
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tmp.clear();
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}
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}
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// add cmake system variables
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if(!this->NoCMakeSystemPath)
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{
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if(const char* path =
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this->Makefile->GetDefinition("CMAKE_SYSTEM_FRAMEWORK_PATH"))
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{
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cmSystemTools::ExpandListArgument(path, tmp);
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this->AddPathsInternal(paths, tmp, CMakePath);
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tmp.clear();
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}
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddCMakePath(std::vector<std::string>& out_paths,
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const char* variable,
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std::set<cmStdString>* emmitted)
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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(out_paths, tmp, CMakePath, emmitted);
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddEnvPath(std::vector<std::string>& out_paths,
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const char* variable,
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std::set<cmStdString>* emmitted)
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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(out_paths, tmp, EnvPath, emmitted);
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddPathsInternal(std::vector<std::string>& out_paths,
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std::vector<std::string> const& in_paths,
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PathType pathType,
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std::set<cmStdString>* emmitted)
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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(out_paths, *i, pathType, emmitted);
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddPathInternal(std::vector<std::string>& out_paths,
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std::string const& in_path,
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PathType pathType,
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std::set<cmStdString>* emmitted)
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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 emmitted.
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if(!emmitted || emmitted->insert(fullPath).second)
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{
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out_paths.push_back(fullPath.c_str());
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}
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}
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