CMake/Source/cmake.cxx

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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2001 Insight Consortium
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* The name of the Insight Consortium, nor the names of any consortium members,
nor of any contributors, may be used to endorse or promote products derived
from this software without specific prior written permission.
* Modified source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS ``AS IS''
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=========================================================================*/
#include "cmake.h"
#include "cmCacheManager.h"
// include the generator
#if defined(_WIN32) && !defined(__CYGWIN__)
#include "cmMSProjectGenerator.h"
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#include "cmBorlandMakefileGenerator.h"
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#else
#include "cmUnixMakefileGenerator.h"
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#endif
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cmake::cmake()
{
m_Verbose = false;
#if defined(_WIN32) && !defined(__CYGWIN__)
cmMakefileGenerator::RegisterGenerator(new cmMSProjectGenerator);
cmMakefileGenerator::RegisterGenerator(new cmBorlandMakefileGenerator);
#else
cmMakefileGenerator::RegisterGenerator(new cmUnixMakefileGenerator);
#endif
}
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void cmake::Usage(const char* program)
{
std::cerr << "cmake version " << cmMakefile::GetMajorVersion()
<< "." << cmMakefile::GetMinorVersion() << "\n";
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std::cerr << "Usage: " << program << " srcdir \n"
<< "Where cmake is run from the directory where you want the object files written\n";
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std::cerr << "[-GgeneratorName] (where generator name can be: ";
std::vector<std::string> names;
cmMakefileGenerator::GetRegisteredGenerators(names);
for(std::vector<std::string>::iterator i =names.begin();
i != names.end(); ++i)
{
std::cerr << i->c_str() << " ";
}
std::cerr << ")\n";
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}
// Parse the args
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void cmake::SetArgs(cmMakefile& builder, const std::vector<std::string>& args)
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{
m_Local = false;
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bool directoriesSet = false;
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// watch for cmake and cmake srcdir invocations
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if (args.size() <= 2)
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{
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directoriesSet = true;
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builder.SetHomeOutputDirectory
(cmSystemTools::GetCurrentWorkingDirectory().c_str());
builder.SetStartOutputDirectory
(cmSystemTools::GetCurrentWorkingDirectory().c_str());
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if (args.size() == 2)
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{
builder.SetHomeDirectory
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(cmSystemTools::CollapseFullPath(args[1].c_str()).c_str());
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builder.SetStartDirectory
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(cmSystemTools::CollapseFullPath(args[1].c_str()).c_str());
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}
else
{
builder.SetHomeDirectory
(cmSystemTools::GetCurrentWorkingDirectory().c_str());
builder.SetStartDirectory
(cmSystemTools::GetCurrentWorkingDirectory().c_str());
}
}
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for(unsigned int i=1; i < args.size(); ++i)
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{
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std::string arg = args[i];
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if(arg.find("-H",0) == 0)
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{
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directoriesSet = true;
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std::string path = arg.substr(2);
builder.SetHomeDirectory(path.c_str());
}
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else if(arg.find("-S",0) == 0)
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{
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directoriesSet = true;
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m_Local = true;
std::string path = arg.substr(2);
builder.SetStartDirectory(path.c_str());
}
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else if(arg.find("-O",0) == 0)
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{
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directoriesSet = true;
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std::string path = arg.substr(2);
builder.SetStartOutputDirectory(path.c_str());
}
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else if(arg.find("-B",0) == 0)
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{
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directoriesSet = true;
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std::string path = arg.substr(2);
builder.SetHomeOutputDirectory(path.c_str());
}
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else if(arg.find("-D",0) == 0)
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{
std::string value = arg.substr(2);
builder.AddDefinition(value.c_str(), true);
}
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else if(arg.find("-V",0) == 0)
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{
m_Verbose = true;
}
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else if(arg.find("-G",0) == 0)
{
std::string value = arg.substr(2);
cmMakefileGenerator* gen =
cmMakefileGenerator::CreateGenerator(value.c_str());
if(!gen)
{
cmSystemTools::Error("Could not create named generator ",
value.c_str());
}
else
{
builder.SetMakefileGenerator(gen);
}
}
// no option assume it is the path to the source
else
{
directoriesSet = true;
builder.SetHomeOutputDirectory
(cmSystemTools::GetCurrentWorkingDirectory().c_str());
builder.SetStartOutputDirectory
(cmSystemTools::GetCurrentWorkingDirectory().c_str());
builder.SetHomeDirectory
(cmSystemTools::CollapseFullPath(args[1].c_str()).c_str());
builder.SetStartDirectory
(cmSystemTools::CollapseFullPath(args[1].c_str()).c_str());
}
}
if(!directoriesSet)
{
builder.SetHomeOutputDirectory
(cmSystemTools::GetCurrentWorkingDirectory().c_str());
builder.SetStartOutputDirectory
(cmSystemTools::GetCurrentWorkingDirectory().c_str());
builder.SetHomeDirectory
(cmSystemTools::GetCurrentWorkingDirectory().c_str());
builder.SetStartDirectory
(cmSystemTools::GetCurrentWorkingDirectory().c_str());
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}
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if (!m_Local)
{
builder.SetStartDirectory(builder.GetHomeDirectory());
builder.SetStartOutputDirectory(builder.GetHomeOutputDirectory());
}
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}
// at the end of this CMAKE_ROOT and CMAKE_COMMAND should be added to the cache
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void cmake::AddCMakePaths(const std::vector<std::string>& args)
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{
// Find our own executable.
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std::string cMakeSelf = args[0];
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cmSystemTools::ConvertToUnixSlashes(cMakeSelf);
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cMakeSelf = cmSystemTools::FindProgram(cMakeSelf.c_str());
if(!cmSystemTools::FileExists(cMakeSelf.c_str()))
{
#ifdef CMAKE_BUILD_DIR
cMakeSelf = CMAKE_BUILD_DIR;
cMakeSelf += "/Source/cmake";
#endif
}
#ifdef CMAKE_PREFIX
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if(!cmSystemTools::FileExists(cMakeSelf.c_str()))
{
cMakeSelf = CMAKE_PREFIX "/bin/cmake";
}
#endif
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if(!cmSystemTools::FileExists(cMakeSelf.c_str()))
{
cmSystemTools::Error("CMAKE can not find the command line program cmake. "
"Attempted path: ", cMakeSelf.c_str());
return;
}
// Save the value in the cache
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cmCacheManager::GetInstance()->AddCacheEntry
("CMAKE_COMMAND",
cmSystemTools::EscapeSpaces(cMakeSelf.c_str()).c_str(),
"Path to CMake executable.",
cmCacheManager::INTERNAL);
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// do CMAKE_ROOT, look for the environment variable first
std::string cMakeRoot;
std::string modules;
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if (getenv("CMAKE_ROOT"))
{
cMakeRoot = getenv("CMAKE_ROOT");
modules = cMakeRoot + "/Modules/FindVTK.cmake";
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}
if(!cmSystemTools::FileExists(modules.c_str()))
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{
// next try exe/..
cMakeRoot = cmSystemTools::GetProgramPath(cMakeSelf.c_str());
std::string::size_type slashPos = cMakeRoot.rfind("/");
if(slashPos != std::string::npos)
{
cMakeRoot = cMakeRoot.substr(0, slashPos);
}
// is there no Modules direcory there?
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modules = cMakeRoot + "/Modules/FindVTK.cmake";
}
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if (!cmSystemTools::FileExists(modules.c_str()))
{
// try exe/../share/cmake
cMakeRoot += "/share/CMake";
modules = cMakeRoot + "/Modules/FindVTK.cmake";
}
#ifdef CMAKE_ROOT_DIR
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if (!cmSystemTools::FileExists(modules.c_str()))
{
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// try compiled in root directory
cMakeRoot = CMAKE_ROOT_DIR;
modules = cMakeRoot + "/Modules/FindVTK.cmake";
}
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#endif
#ifdef CMAKE_PREFIX
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if (!cmSystemTools::FileExists(modules.c_str()))
{
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// try compiled in install prefix
cMakeRoot = CMAKE_PREFIX "/share/CMake";
modules = cMakeRoot + "/Modules/FindVTK.cmake";
}
#endif
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if (!cmSystemTools::FileExists(modules.c_str()))
{
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// try
cMakeRoot = cmSystemTools::GetProgramPath(cMakeSelf.c_str());
cMakeRoot += "/share/CMake";
modules = cMakeRoot + "/Modules/FindVTK.cmake";
}
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if (!cmSystemTools::FileExists(modules.c_str()))
{
// couldn't find modules
cmSystemTools::Error("Could not find CMAKE_ROOT !!!\n",
"Modules directory not in directory:\n",
modules.c_str());
return;
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}
cmCacheManager::GetInstance()->AddCacheEntry
("CMAKE_ROOT", cMakeRoot.c_str(),
"Path to CMake installation.", cmCacheManager::INTERNAL);
}
int cmake::Generate(const std::vector<std::string>& args, bool buildMakefiles)
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{
if(args.size() == 1 && !cmSystemTools::FileExists("CMakeLists.txt"))
{
this->Usage(args[0].c_str());
return -1;
}
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// look for obvious request for help
for(unsigned int i=1; i < args.size(); ++i)
{
std::string arg = args[i];
if(arg.find("-help",0) != std::string::npos ||
arg.find("--help",0) != std::string::npos ||
arg.find("/?",0) != std::string::npos ||
arg.find("-usage",0) != std::string::npos)
{
this->Usage(args[0].c_str());
return -1;
}
}
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// Create a makefile
cmMakefile mf;
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// extract the directory arguments, could create a Generator
this->SetArgs(mf, args);
// Read and parse the input makefile
mf.MakeStartDirectoriesCurrent();
cmCacheManager::GetInstance()->LoadCache(&mf);
// no generator specified on the command line
if(!mf.GetMakefileGenerator())
{
cmMakefileGenerator* gen;
const char* genName = mf.GetDefinition("CMAKE_GENERATOR");
if(genName)
{
gen = cmMakefileGenerator::CreateGenerator(genName);
}
else
{
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#if defined(_WIN32) && !defined(__CYGWIN__)
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gen = new cmMSProjectGenerator;
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#else
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gen = new cmUnixMakefileGenerator;
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#endif
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}
if(!gen)
{
cmSystemTools::Error("Could not create generator");
return -1;
}
mf.SetMakefileGenerator(gen);
// add the
}
cmMakefileGenerator* gen = mf.GetMakefileGenerator();
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gen->SetLocal(m_Local);
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if(!mf.GetDefinition("CMAKE_GENERATOR"))
{
mf.AddCacheDefinition("CMAKE_GENERATOR",
gen->GetName(),
"Name of generator.",
cmCacheManager::INTERNAL);
}
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// setup CMAKE_ROOT and CMAKE_COMMAND
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this->AddCMakePaths(args);
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// compute system info
gen->ComputeSystemInfo();
// Transfer the cache into the makefile's definitions.
cmCacheManager::GetInstance()->DefineCache(&mf);
std::string lf = mf.GetStartDirectory();
lf += "/CMakeLists.txt";
if(!mf.ReadListFile(lf.c_str()))
{
this->Usage(args[0].c_str());
return -1;
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}
// if buildMakefiles, then call GenerateMakefile
if(buildMakefiles)
{
mf.GenerateMakefile();
}
else // do not build, but let the commands finalize
{
std::vector<cmMakefile*> makefiles;
mf.FindSubDirectoryCMakeListsFiles(makefiles);
for(std::vector<cmMakefile*>::iterator i = makefiles.begin();
i != makefiles.end(); ++i)
{
cmMakefile* mf = *i;
mf->FinalPass();
delete mf;
}
mf.FinalPass();
}
// Before saving the cache
// if the project did not define one of the entries below, add them now
// so users can edit the values in the cache:
// LIBRARY_OUTPUT_PATH
// EXECUTABLE_OUTPUT_PATH
if(!cmCacheManager::GetInstance()->GetCacheValue("LIBRARY_OUTPUT_PATH"))
{
cmCacheManager::GetInstance()->AddCacheEntry("LIBRARY_OUTPUT_PATH", "",
"Single output directory for building all libraries.",
cmCacheManager::PATH);
}
if(!cmCacheManager::GetInstance()->GetCacheValue("EXECUTABLE_OUTPUT_PATH"))
{
cmCacheManager::GetInstance()->AddCacheEntry("EXECUTABLE_OUTPUT_PATH", "",
"Single output directory for building all executables.",
cmCacheManager::PATH);
}
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cmCacheManager::GetInstance()->SaveCache(&mf);
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if(m_Verbose)
{
cmCacheManager::GetInstance()->PrintCache(std::cout);
}
if(cmSystemTools::GetErrorOccuredFlag())
{
return -1;
}
return 0;
}