CMake/Source/cmProjectCommand.cxx

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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
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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.
============================================================================*/
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#include "cmProjectCommand.h"
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// cmProjectCommand
bool cmProjectCommand
::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
{
if(args.size() < 1 )
{
this->SetError("PROJECT called with incorrect number of arguments");
return false;
}
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this->Makefile->SetProjectName(args[0].c_str());
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std::string bindir = args[0];
bindir += "_BINARY_DIR";
std::string srcdir = args[0];
srcdir += "_SOURCE_DIR";
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this->Makefile->AddCacheDefinition
(bindir,
this->Makefile->GetCurrentBinaryDirectory(),
"Value Computed by CMake", cmState::STATIC);
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this->Makefile->AddCacheDefinition
(srcdir,
this->Makefile->GetCurrentSourceDirectory(),
"Value Computed by CMake", cmState::STATIC);
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bindir = "PROJECT_BINARY_DIR";
srcdir = "PROJECT_SOURCE_DIR";
this->Makefile->AddDefinition(bindir,
this->Makefile->GetCurrentBinaryDirectory());
this->Makefile->AddDefinition(srcdir,
this->Makefile->GetCurrentSourceDirectory());
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this->Makefile->AddDefinition("PROJECT_NAME", args[0].c_str());
// Set the CMAKE_PROJECT_NAME variable to be the highest-level
// project name in the tree. If there are two project commands
// in the same CMakeLists.txt file, and it is the top level
// CMakeLists.txt file, then go with the last one, so that
// CMAKE_PROJECT_NAME will match PROJECT_NAME, and cmake --build
// will work.
if(!this->Makefile->GetDefinition("CMAKE_PROJECT_NAME")
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|| (this->Makefile->GetLocalGenerator()->IsRootMakefile()))
{
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this->Makefile->AddDefinition("CMAKE_PROJECT_NAME", args[0].c_str());
this->Makefile->AddCacheDefinition
("CMAKE_PROJECT_NAME",
args[0].c_str(),
"Value Computed by CMake", cmState::STATIC);
}
bool haveVersion = false;
bool haveLanguages = false;
std::string version;
std::vector<std::string> languages;
enum Doing { DoingLanguages, DoingVersion };
Doing doing = DoingLanguages;
for(size_t i = 1; i < args.size(); ++i)
{
if(args[i] == "LANGUAGES")
{
if(haveLanguages)
{
this->Makefile->IssueMessage
(cmake::FATAL_ERROR, "LANGUAGES may be specified at most once.");
cmSystemTools::SetFatalErrorOccured();
return true;
}
haveLanguages = true;
doing = DoingLanguages;
}
else if (args[i] == "VERSION")
{
if(haveVersion)
{
this->Makefile->IssueMessage
(cmake::FATAL_ERROR, "VERSION may be specified at most once.");
cmSystemTools::SetFatalErrorOccured();
return true;
}
haveVersion = true;
doing = DoingVersion;
}
else if(doing == DoingVersion)
{
doing = DoingLanguages;
version = args[i];
}
else // doing == DoingLanguages
{
languages.push_back(args[i]);
}
}
if (haveVersion && !haveLanguages && !languages.empty())
{
this->Makefile->IssueMessage
(cmake::FATAL_ERROR,
"project with VERSION must use LANGUAGES before language names.");
cmSystemTools::SetFatalErrorOccured();
return true;
}
if (haveLanguages && languages.empty())
{
languages.push_back("NONE");
}
cmPolicies::PolicyStatus cmp0048 =
this->Makefile->GetPolicyStatus(cmPolicies::CMP0048);
if (haveVersion)
{
// Set project VERSION variables to given values
if (cmp0048 == cmPolicies::OLD ||
cmp0048 == cmPolicies::WARN)
{
this->Makefile->IssueMessage
(cmake::FATAL_ERROR,
"VERSION not allowed unless CMP0048 is set to NEW");
cmSystemTools::SetFatalErrorOccured();
return true;
}
cmsys::RegularExpression
vx("^([0-9]+(\\.[0-9]+(\\.[0-9]+(\\.[0-9]+)?)?)?)?$");
if(!vx.find(version))
{
std::string e = "VERSION \"" + version + "\" format invalid.";
this->Makefile->IssueMessage(cmake::FATAL_ERROR, e);
cmSystemTools::SetFatalErrorOccured();
return true;
}
std::string vs;
const char* sep = "";
char vb[4][64];
unsigned int v[4] = {0,0,0,0};
int vc = sscanf(version.c_str(), "%u.%u.%u.%u",
&v[0], &v[1], &v[2], &v[3]);
for(int i=0; i < 4; ++i)
{
if(i < vc)
{
sprintf(vb[i], "%u", v[i]);
vs += sep;
vs += vb[i];
sep = ".";
}
else
{
vb[i][0] = 0;
}
}
std::string vv;
vv = args[0] + "_VERSION";
this->Makefile->AddDefinition("PROJECT_VERSION", vs.c_str());
this->Makefile->AddDefinition(vv, vs.c_str());
vv = args[0] + "_VERSION_MAJOR";
this->Makefile->AddDefinition("PROJECT_VERSION_MAJOR", vb[0]);
this->Makefile->AddDefinition(vv, vb[0]);
vv = args[0] + "_VERSION_MINOR";
this->Makefile->AddDefinition("PROJECT_VERSION_MINOR", vb[1]);
this->Makefile->AddDefinition(vv, vb[1]);
vv = args[0] + "_VERSION_PATCH";
this->Makefile->AddDefinition("PROJECT_VERSION_PATCH", vb[2]);
this->Makefile->AddDefinition(vv, vb[2]);
vv = args[0] + "_VERSION_TWEAK";
this->Makefile->AddDefinition("PROJECT_VERSION_TWEAK", vb[3]);
this->Makefile->AddDefinition(vv, vb[3]);
}
else if(cmp0048 != cmPolicies::OLD)
{
// Set project VERSION variables to empty
std::vector<std::string> vv;
vv.push_back("PROJECT_VERSION");
vv.push_back("PROJECT_VERSION_MAJOR");
vv.push_back("PROJECT_VERSION_MINOR");
vv.push_back("PROJECT_VERSION_PATCH");
vv.push_back("PROJECT_VERSION_TWEAK");
vv.push_back(args[0] + "_VERSION");
vv.push_back(args[0] + "_VERSION_MAJOR");
vv.push_back(args[0] + "_VERSION_MINOR");
vv.push_back(args[0] + "_VERSION_PATCH");
vv.push_back(args[0] + "_VERSION_TWEAK");
std::string vw;
for(std::vector<std::string>::iterator i = vv.begin();
i != vv.end(); ++i)
{
const char* v = this->Makefile->GetDefinition(*i);
if(v && *v)
{
if(cmp0048 == cmPolicies::WARN)
{
vw += "\n ";
vw += *i;
}
else
{
this->Makefile->AddDefinition(*i, "");
}
}
}
if(!vw.empty())
{
std::ostringstream w;
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w << cmPolicies::GetPolicyWarning(cmPolicies::CMP0048)
<< "\nThe following variable(s) would be set to empty:" << vw;
this->Makefile->IssueMessage(cmake::AUTHOR_WARNING, w.str());
}
}
if (languages.empty())
{
// if no language is specified do c and c++
languages.push_back("C");
languages.push_back("CXX");
}
this->Makefile->EnableLanguage(languages, false);
std::string extraInclude = "CMAKE_PROJECT_" + args[0] + "_INCLUDE";
const char* include = this->Makefile->GetDefinition(extraInclude);
if(include)
{
bool readit =
this->Makefile->ReadDependentFile(include);
if(!readit && !cmSystemTools::GetFatalErrorOccured())
{
std::string m =
"could not find file:\n"
" ";
m += include;
this->SetError(m);
return false;
}
}
return true;
}