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cmake/Source/cmExportInstallCMakeConfigG...

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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 "cmExportInstallCMakeConfigGenerator.h"
#include <algorithm>
#include <map>
#include <memory>
#include <set>
#include <sstream>
#include <utility>
#include <vector>
#include <cm/string_view>
#include <cmext/string_view>
#include "cmExportFileGenerator.h"
#include "cmExportSet.h"
#include "cmFileSet.h"
#include "cmGeneratedFileStream.h"
#include "cmGeneratorExpression.h"
#include "cmGeneratorTarget.h"
#include "cmInstallExportGenerator.h"
#include "cmInstallFileSetGenerator.h"
#include "cmLocalGenerator.h"
#include "cmMakefile.h"
#include "cmMessageType.h"
#include "cmOutputConverter.h"
#include "cmPolicies.h"
#include "cmStateTypes.h"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
#include "cmTargetExport.h"
#include "cmValue.h"
cmExportInstallCMakeConfigGenerator::cmExportInstallCMakeConfigGenerator(
cmInstallExportGenerator* iegen)
: cmExportInstallFileGenerator(iegen)
{
}
std::string cmExportInstallCMakeConfigGenerator::GetConfigImportFileGlob()
const
{
std::string glob = cmStrCat(this->FileBase, "-*", this->FileExt);
return glob;
}
bool cmExportInstallCMakeConfigGenerator::GenerateMainFile(std::ostream& os)
{
std::vector<cmTargetExport const*> allTargets;
{
std::string expectedTargets;
std::string sep;
auto visitor = [&](cmTargetExport const* te) {
allTargets.push_back(te);
expectedTargets += sep + this->Namespace + te->Target->GetExportName();
sep = " ";
};
if (!this->CollectExports(visitor)) {
return false;
}
this->GenerateExpectedTargetsCode(os, expectedTargets);
}
// Compute the relative import prefix for the file
this->GenerateImportPrefix(os);
bool requiresConfigFiles = false;
// Create all the imported targets.
for (cmTargetExport const* te : allTargets) {
cmGeneratorTarget* gt = te->Target;
cmStateEnums::TargetType targetType = this->GetExportTargetType(te);
requiresConfigFiles =
requiresConfigFiles || targetType != cmStateEnums::INTERFACE_LIBRARY;
this->GenerateImportTargetCode(os, gt, targetType);
ImportPropertyMap properties;
if (!this->PopulateInterfaceProperties(te, properties)) {
return false;
}
bool const newCMP0022Behavior =
gt->GetPolicyStatusCMP0022() != cmPolicies::WARN &&
gt->GetPolicyStatusCMP0022() != cmPolicies::OLD;
if (newCMP0022Behavior) {
if (this->PopulateInterfaceLinkLibrariesProperty(
gt, cmGeneratorExpression::InstallInterface, properties) &&
!this->ExportOld) {
this->SetRequiredCMakeVersion(2, 8, 12);
}
}
if (targetType == cmStateEnums::INTERFACE_LIBRARY) {
this->SetRequiredCMakeVersion(3, 0, 0);
}
if (gt->GetProperty("INTERFACE_SOURCES")) {
// We can only generate INTERFACE_SOURCES in CMake 3.3, but CMake 3.1
// can consume them.
this->SetRequiredCMakeVersion(3, 1, 0);
}
this->GenerateInterfaceProperties(gt, os, properties);
this->GenerateTargetFileSets(gt, os, te);
}
this->LoadConfigFiles(os);
bool result = true;
std::string cxx_modules_name = this->GetExportSet()->GetName();
this->GenerateCxxModuleInformation(cxx_modules_name, os);
if (requiresConfigFiles) {
for (std::string const& c : this->Configurations) {
if (!this->GenerateImportCxxModuleConfigTargetInclusion(cxx_modules_name,
c)) {
result = false;
}
}
}
this->CleanupTemporaryVariables(os);
this->GenerateImportedFileCheckLoop(os);
// Generate an import file for each configuration.
// Don't do this if we only export INTERFACE_LIBRARY targets.
if (requiresConfigFiles) {
for (std::string const& c : this->Configurations) {
if (!this->GenerateImportFileConfig(c)) {
result = false;
}
}
}
this->GenerateMissingTargetsCheckCode(os);
return result;
}
void cmExportInstallCMakeConfigGenerator::GenerateImportPrefix(
std::ostream& os)
{
// Set an _IMPORT_PREFIX variable for import location properties
// to reference if they are relative to the install prefix.
std::string installPrefix =
this->IEGen->GetLocalGenerator()->GetMakefile()->GetSafeDefinition(
"CMAKE_INSTALL_PREFIX");
std::string const& expDest = this->IEGen->GetDestination();
if (cmSystemTools::FileIsFullPath(expDest)) {
// The export file is being installed to an absolute path so the
// package is not relocatable. Use the configured install prefix.
/* clang-format off */
os <<
"# The installation prefix configured by this project.\n"
"set(_IMPORT_PREFIX \"" << installPrefix << "\")\n"
"\n";
/* clang-format on */
} else {
// Add code to compute the installation prefix relative to the
// import file location.
std::string absDest = installPrefix + "/" + expDest;
std::string absDestS = absDest + "/";
os << "# Compute the installation prefix relative to this file.\n"
<< "get_filename_component(_IMPORT_PREFIX"
<< " \"${CMAKE_CURRENT_LIST_FILE}\" PATH)\n";
if (cmHasLiteralPrefix(absDestS, "/lib/") ||
cmHasLiteralPrefix(absDestS, "/lib64/") ||
cmHasLiteralPrefix(absDestS, "/libx32/") ||
cmHasLiteralPrefix(absDestS, "/usr/lib/") ||
cmHasLiteralPrefix(absDestS, "/usr/lib64/") ||
cmHasLiteralPrefix(absDestS, "/usr/libx32/")) {
// Handle "/usr move" symlinks created by some Linux distros.
/* clang-format off */
os <<
"# Use original install prefix when loaded through a\n"
"# cross-prefix symbolic link such as /lib -> /usr/lib.\n"
"get_filename_component(_realCurr \"${_IMPORT_PREFIX}\" REALPATH)\n"
"get_filename_component(_realOrig \"" << absDest << "\" REALPATH)\n"
"if(_realCurr STREQUAL _realOrig)\n"
" set(_IMPORT_PREFIX \"" << absDest << "\")\n"
"endif()\n"
"unset(_realOrig)\n"
"unset(_realCurr)\n";
/* clang-format on */
}
std::string dest = expDest;
while (!dest.empty()) {
os << "get_filename_component(_IMPORT_PREFIX \"${_IMPORT_PREFIX}\" "
"PATH)\n";
dest = cmSystemTools::GetFilenamePath(dest);
}
os << "if(_IMPORT_PREFIX STREQUAL \"/\")\n"
<< " set(_IMPORT_PREFIX \"\")\n"
<< "endif()\n"
<< "\n";
}
}
void cmExportInstallCMakeConfigGenerator::CleanupTemporaryVariables(
std::ostream& os)
{
/* clang-format off */
os << "# Cleanup temporary variables.\n"
<< "set(_IMPORT_PREFIX)\n"
<< "\n";
/* clang-format on */
}
void cmExportInstallCMakeConfigGenerator::LoadConfigFiles(std::ostream& os)
{
// Now load per-configuration properties for them.
/* clang-format off */
os << "# Load information for each installed configuration.\n"
<< "file(GLOB _cmake_config_files \"${CMAKE_CURRENT_LIST_DIR}/"
<< this->GetConfigImportFileGlob() << "\")\n"
<< "foreach(_cmake_config_file IN LISTS _cmake_config_files)\n"
<< " include(\"${_cmake_config_file}\")\n"
<< "endforeach()\n"
<< "unset(_cmake_config_file)\n"
<< "unset(_cmake_config_files)\n"
<< "\n";
/* clang-format on */
}
void cmExportInstallCMakeConfigGenerator::GenerateImportConfig(
std::ostream& os, std::string const& config)
{
// Start with the import file header.
this->GenerateImportHeaderCode(os, config);
// Generate the per-config target information.
this->cmExportFileGenerator::GenerateImportConfig(os, config);
// End with the import file footer.
this->GenerateImportFooterCode(os);
}
void cmExportInstallCMakeConfigGenerator::GenerateImportTargetsConfig(
std::ostream& os, std::string const& config, std::string const& suffix)
{
// Add each target in the set to the export.
for (std::unique_ptr<cmTargetExport> const& te :
this->GetExportSet()->GetTargetExports()) {
// Collect import properties for this target.
if (this->GetExportTargetType(te.get()) ==
cmStateEnums::INTERFACE_LIBRARY) {
continue;
}
ImportPropertyMap properties;
std::set<std::string> importedLocations;
this->PopulateImportProperties(config, suffix, te.get(), properties,
importedLocations);
// If any file location was set for the target add it to the
// import file.
if (!properties.empty()) {
cmGeneratorTarget const* const gtgt = te->Target;
std::string const importedXcFrameworkLocation =
this->GetImportXcFrameworkLocation(config, te.get());
this->SetImportLinkInterface(config, suffix,
cmGeneratorExpression::InstallInterface,
gtgt, properties);
this->GenerateImportPropertyCode(os, config, suffix, gtgt, properties,
importedXcFrameworkLocation);
this->GenerateImportedFileChecksCode(
os, gtgt, properties, importedLocations, importedXcFrameworkLocation);
}
}
}
namespace {
bool EntryIsContextSensitive(
std::unique_ptr<cmCompiledGeneratorExpression> const& cge)
{
return cge->GetHadContextSensitiveCondition();
}
}
std::string cmExportInstallCMakeConfigGenerator::GetFileSetDirectories(
cmGeneratorTarget* gte, cmFileSet* fileSet, cmTargetExport const* te)
{
std::vector<std::string> resultVector;
auto configs =
gte->Makefile->GetGeneratorConfigs(cmMakefile::IncludeEmptyConfig);
cmGeneratorExpression ge(*gte->Makefile->GetCMakeInstance());
auto cge = ge.Parse(te->FileSetGenerators.at(fileSet)->GetDestination());
for (auto const& config : configs) {
auto unescapedDest = cge->Evaluate(gte->LocalGenerator, config, gte);
auto dest = cmOutputConverter::EscapeForCMake(
unescapedDest, cmOutputConverter::WrapQuotes::NoWrap);
if (!cmSystemTools::FileIsFullPath(unescapedDest)) {
dest = cmStrCat("${_IMPORT_PREFIX}/", dest);
}
auto const& type = fileSet->GetType();
// C++ modules do not support interface file sets which are dependent upon
// the configuration.
if (cge->GetHadContextSensitiveCondition() && type == "CXX_MODULES"_s) {
auto* mf = this->IEGen->GetLocalGenerator()->GetMakefile();
std::ostringstream e;
e << "The \"" << gte->GetName() << "\" target's interface file set \""
<< fileSet->GetName() << "\" of type \"" << type
<< "\" contains context-sensitive base file entries which is not "
"supported.";
mf->IssueMessage(MessageType::FATAL_ERROR, e.str());
return std::string{};
}
if (cge->GetHadContextSensitiveCondition() && configs.size() != 1) {
resultVector.push_back(
cmStrCat("\"$<$<CONFIG:", config, ">:", dest, ">\""));
} else {
resultVector.emplace_back(cmStrCat('"', dest, '"'));
break;
}
}
return cmJoin(resultVector, " ");
}
std::string cmExportInstallCMakeConfigGenerator::GetFileSetFiles(
cmGeneratorTarget* gte, cmFileSet* fileSet, cmTargetExport const* te)
{
std::vector<std::string> resultVector;
auto configs =
gte->Makefile->GetGeneratorConfigs(cmMakefile::IncludeEmptyConfig);
auto fileEntries = fileSet->CompileFileEntries();
auto directoryEntries = fileSet->CompileDirectoryEntries();
cmGeneratorExpression destGe(*gte->Makefile->GetCMakeInstance());
auto destCge =
destGe.Parse(te->FileSetGenerators.at(fileSet)->GetDestination());
for (auto const& config : configs) {
auto directories = fileSet->EvaluateDirectoryEntries(
directoryEntries, gte->LocalGenerator, config, gte);
std::map<std::string, std::vector<std::string>> files;
for (auto const& entry : fileEntries) {
fileSet->EvaluateFileEntry(directories, files, entry,
gte->LocalGenerator, config, gte);
}
auto unescapedDest = destCge->Evaluate(gte->LocalGenerator, config, gte);
auto dest =
cmStrCat(cmOutputConverter::EscapeForCMake(
unescapedDest, cmOutputConverter::WrapQuotes::NoWrap),
'/');
if (!cmSystemTools::FileIsFullPath(unescapedDest)) {
dest = cmStrCat("${_IMPORT_PREFIX}/", dest);
}
bool const contextSensitive = destCge->GetHadContextSensitiveCondition() ||
std::any_of(directoryEntries.begin(), directoryEntries.end(),
EntryIsContextSensitive) ||
std::any_of(fileEntries.begin(), fileEntries.end(),
EntryIsContextSensitive);
auto const& type = fileSet->GetType();
// C++ modules do not support interface file sets which are dependent upon
// the configuration.
if (contextSensitive && type == "CXX_MODULES"_s) {
auto* mf = this->IEGen->GetLocalGenerator()->GetMakefile();
std::ostringstream e;
e << "The \"" << gte->GetName() << "\" target's interface file set \""
<< fileSet->GetName() << "\" of type \"" << type
<< "\" contains context-sensitive base file entries which is not "
"supported.";
mf->IssueMessage(MessageType::FATAL_ERROR, e.str());
return std::string{};
}
for (auto const& it : files) {
auto prefix = it.first.empty() ? "" : cmStrCat(it.first, '/');
for (auto const& filename : it.second) {
auto relFile =
cmStrCat(prefix, cmSystemTools::GetFilenameName(filename));
auto escapedFile =
cmStrCat(dest,
cmOutputConverter::EscapeForCMake(
relFile, cmOutputConverter::WrapQuotes::NoWrap));
if (contextSensitive && configs.size() != 1) {
resultVector.push_back(
cmStrCat("\"$<$<CONFIG:", config, ">:", escapedFile, ">\""));
} else {
resultVector.emplace_back(cmStrCat('"', escapedFile, '"'));
}
}
}
if (!(contextSensitive && configs.size() != 1)) {
break;
}
}
return cmJoin(resultVector, " ");
}
std::string cmExportInstallCMakeConfigGenerator::GetCxxModulesDirectory() const
{
return IEGen->GetCxxModuleDirectory();
}
void cmExportInstallCMakeConfigGenerator::GenerateCxxModuleConfigInformation(
std::string const& name, std::ostream& os) const
{
// Now load per-configuration properties for them.
/* clang-format off */
os << "# Load information for each installed configuration.\n"
"file(GLOB _cmake_cxx_module_includes \"${CMAKE_CURRENT_LIST_DIR}/cxx-modules-" << name << "-*.cmake\")\n"
"foreach(_cmake_cxx_module_include IN LISTS _cmake_cxx_module_includes)\n"
" include(\"${_cmake_cxx_module_include}\")\n"
"endforeach()\n"
"unset(_cmake_cxx_module_include)\n"
"unset(_cmake_cxx_module_includes)\n";
/* clang-format on */
}
bool cmExportInstallCMakeConfigGenerator::
GenerateImportCxxModuleConfigTargetInclusion(std::string const& name,
std::string const& config)
{
auto cxx_modules_dirname = this->GetCxxModulesDirectory();
if (cxx_modules_dirname.empty()) {
return true;
}
std::string filename_config = config;
if (filename_config.empty()) {
filename_config = "noconfig";
}
std::string const dest =
cmStrCat(this->FileDir, '/', cxx_modules_dirname, '/');
std::string fileName =
cmStrCat(dest, "cxx-modules-", name, '-', filename_config, ".cmake");
cmGeneratedFileStream os(fileName, true);
if (!os) {
std::string se = cmSystemTools::GetLastSystemError();
std::ostringstream e;
e << "cannot write to file \"" << fileName << "\": " << se;
cmSystemTools::Error(e.str());
return false;
}
os.SetCopyIfDifferent(true);
// Record this per-config import file.
this->ConfigCxxModuleFiles[config] = fileName;
auto& prop_files = this->ConfigCxxModuleTargetFiles[config];
for (auto const* tgt : this->ExportedTargets) {
// Only targets with C++ module sources will have a
// collator-generated install script.
if (!tgt->HaveCxx20ModuleSources()) {
continue;
}
auto prop_filename = cmStrCat("target-", tgt->GetFilesystemExportName(),
'-', filename_config, ".cmake");
prop_files.emplace_back(cmStrCat(dest, prop_filename));
os << "include(\"${CMAKE_CURRENT_LIST_DIR}/" << prop_filename << "\")\n";
}
return true;
}