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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmProjectCommand.h"
#include "cmsys/RegularExpression.hxx"
#include <sstream>
#include <stdio.h>
#include "cmMakefile.h"
#include "cmPolicies.h"
#include "cmStateTypes.h"
#include "cmSystemTools.h"
#include "cmake.h"
class cmExecutionStatus;
// cmProjectCommand
bool cmProjectCommand::InitialPass(std::vector<std::string> const& args,
cmExecutionStatus&)
{
if (args.empty()) {
this->SetError("PROJECT called with incorrect number of arguments");
return false;
}
std::string const& projectName = args[0];
this->Makefile->SetProjectName(projectName);
std::string bindir = projectName;
bindir += "_BINARY_DIR";
std::string srcdir = projectName;
srcdir += "_SOURCE_DIR";
this->Makefile->AddCacheDefinition(
bindir, this->Makefile->GetCurrentBinaryDirectory(),
"Value Computed by CMake", cmStateEnums::STATIC);
this->Makefile->AddCacheDefinition(
srcdir, this->Makefile->GetCurrentSourceDirectory(),
"Value Computed by CMake", cmStateEnums::STATIC);
bindir = "PROJECT_BINARY_DIR";
srcdir = "PROJECT_SOURCE_DIR";
this->Makefile->AddDefinition(bindir,
this->Makefile->GetCurrentBinaryDirectory());
this->Makefile->AddDefinition(srcdir,
this->Makefile->GetCurrentSourceDirectory());
this->Makefile->AddDefinition("PROJECT_NAME", projectName.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") ||
(this->Makefile->IsRootMakefile())) {
this->Makefile->AddDefinition("CMAKE_PROJECT_NAME", projectName.c_str());
this->Makefile->AddCacheDefinition(
"CMAKE_PROJECT_NAME", projectName.c_str(), "Value Computed by CMake",
cmStateEnums::STATIC);
}
bool haveVersion = false;
bool haveLanguages = false;
bool haveDescription = false;
std::string version;
std::string description;
std::vector<std::string> languages;
enum Doing
{
DoingDescription,
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 (args[i] == "DESCRIPTION") {
if (haveDescription) {
this->Makefile->IssueMessage(
cmake::FATAL_ERROR, "DESCRITPION may be specified at most once.");
cmSystemTools::SetFatalErrorOccured();
return true;
}
haveDescription = true;
doing = DoingDescription;
} else if (doing == DoingVersion) {
doing = DoingLanguages;
version = args[i];
} else if (doing == DoingDescription) {
doing = DoingLanguages;
description = 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 = projectName + "_VERSION";
this->Makefile->AddDefinition("PROJECT_VERSION", vs.c_str());
this->Makefile->AddDefinition(vv, vs.c_str());
vv = projectName + "_VERSION_MAJOR";
this->Makefile->AddDefinition("PROJECT_VERSION_MAJOR", vb[0]);
this->Makefile->AddDefinition(vv, vb[0]);
vv = projectName + "_VERSION_MINOR";
this->Makefile->AddDefinition("PROJECT_VERSION_MINOR", vb[1]);
this->Makefile->AddDefinition(vv, vb[1]);
vv = projectName + "_VERSION_PATCH";
this->Makefile->AddDefinition("PROJECT_VERSION_PATCH", vb[2]);
this->Makefile->AddDefinition(vv, vb[2]);
vv = projectName + "_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(projectName + "_VERSION");
vv.push_back(projectName + "_VERSION_MAJOR");
vv.push_back(projectName + "_VERSION_MINOR");
vv.push_back(projectName + "_VERSION_PATCH");
vv.push_back(projectName + "_VERSION_TWEAK");
std::string vw;
for (std::string const& i : vv) {
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;
w << cmPolicies::GetPolicyWarning(cmPolicies::CMP0048)
<< "\nThe following variable(s) would be set to empty:" << vw;
this->Makefile->IssueMessage(cmake::AUTHOR_WARNING, w.str());
}
}
if (haveDescription) {
this->Makefile->AddDefinition("PROJECT_DESCRIPTION", description.c_str());
// Set the CMAKE_PROJECT_DESCRIPTION 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.
if (!this->Makefile->GetDefinition("CMAKE_PROJECT_DESCRIPTION") ||
(this->Makefile->IsRootMakefile())) {
this->Makefile->AddDefinition("CMAKE_PROJECT_DESCRIPTION",
description.c_str());
this->Makefile->AddCacheDefinition(
"CMAKE_PROJECT_DESCRIPTION", description.c_str(),
"Value Computed by CMake", cmStateEnums::STATIC);
}
}
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_" + projectName + "_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;
}
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