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CMake/Source/cmExportFileGenerator.cxx

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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 "cmExportFileGenerator.h"
#include "cmAlgorithms.h"
#include "cmComputeLinkInformation.h"
#include "cmGeneratedFileStream.h"
#include "cmGeneratorTarget.h"
#include "cmLinkItem.h"
#include "cmLocalGenerator.h"
#include "cmMakefile.h"
#include "cmOutputConverter.h"
#include "cmPolicies.h"
#include "cmState.h"
#include "cmSystemTools.h"
#include "cmTarget.h"
#include "cmTargetExport.h"
#include "cmake.h"
#include <assert.h>
#include <cm_auto_ptr.hxx>
#include <cmsys/FStream.hxx>
#include <sstream>
#include <string.h>
#include <utility>
static std::string cmExportFileGeneratorEscape(std::string const& str)
{
// Escape a property value for writing into a .cmake file.
std::string result = cmOutputConverter::EscapeForCMake(str);
// Un-escape variable references generated by our own export code.
cmSystemTools::ReplaceString(result, "\\${_IMPORT_PREFIX}",
"${_IMPORT_PREFIX}");
cmSystemTools::ReplaceString(result, "\\${CMAKE_IMPORT_LIBRARY_SUFFIX}",
"${CMAKE_IMPORT_LIBRARY_SUFFIX}");
return result;
}
cmExportFileGenerator::cmExportFileGenerator()
{
this->AppendMode = false;
this->ExportOld = false;
}
void cmExportFileGenerator::AddConfiguration(const std::string& config)
{
this->Configurations.push_back(config);
}
void cmExportFileGenerator::SetExportFile(const char* mainFile)
{
this->MainImportFile = mainFile;
this->FileDir = cmSystemTools::GetFilenamePath(this->MainImportFile);
this->FileBase =
cmSystemTools::GetFilenameWithoutLastExtension(this->MainImportFile);
this->FileExt =
cmSystemTools::GetFilenameLastExtension(this->MainImportFile);
}
const char* cmExportFileGenerator::GetMainExportFileName() const
{
return this->MainImportFile.c_str();
}
bool cmExportFileGenerator::GenerateImportFile()
{
// Open the output file to generate it.
CM_AUTO_PTR<cmsys::ofstream> foutPtr;
if (this->AppendMode) {
// Open for append.
CM_AUTO_PTR<cmsys::ofstream> ap(
new cmsys::ofstream(this->MainImportFile.c_str(), std::ios::app));
foutPtr = ap;
} else {
// Generate atomically and with copy-if-different.
CM_AUTO_PTR<cmGeneratedFileStream> ap(
new cmGeneratedFileStream(this->MainImportFile.c_str(), true));
ap->SetCopyIfDifferent(true);
foutPtr = ap;
}
if (!foutPtr.get() || !*foutPtr) {
std::string se = cmSystemTools::GetLastSystemError();
std::ostringstream e;
e << "cannot write to file \"" << this->MainImportFile << "\": " << se;
cmSystemTools::Error(e.str().c_str());
return false;
}
std::ostream& os = *foutPtr;
// Start with the import file header.
this->GeneratePolicyHeaderCode(os);
this->GenerateImportHeaderCode(os);
// Create all the imported targets.
bool result = this->GenerateMainFile(os);
// End with the import file footer.
this->GenerateImportFooterCode(os);
this->GeneratePolicyFooterCode(os);
return result;
}
void cmExportFileGenerator::GenerateImportConfig(
std::ostream& os, const std::string& config,
std::vector<std::string>& missingTargets)
{
// Construct the property configuration suffix.
std::string suffix = "_";
if (!config.empty()) {
suffix += cmSystemTools::UpperCase(config);
} else {
suffix += "NOCONFIG";
}
// Generate the per-config target information.
this->GenerateImportTargetsConfig(os, config, suffix, missingTargets);
}
void cmExportFileGenerator::PopulateInterfaceProperty(
const std::string& propName, cmGeneratorTarget* target,
ImportPropertyMap& properties)
{
const char* input = target->GetProperty(propName);
if (input) {
properties[propName] = input;
}
}
void cmExportFileGenerator::PopulateInterfaceProperty(
const std::string& propName, const std::string& outputName,
cmGeneratorTarget* target,
cmGeneratorExpression::PreprocessContext preprocessRule,
ImportPropertyMap& properties, std::vector<std::string>& missingTargets)
{
const char* input = target->GetProperty(propName);
if (input) {
if (!*input) {
// Set to empty
properties[outputName] = "";
return;
}
std::string prepro =
cmGeneratorExpression::Preprocess(input, preprocessRule);
if (!prepro.empty()) {
this->ResolveTargetsInGeneratorExpressions(prepro, target,
missingTargets);
properties[outputName] = prepro;
}
}
}
void cmExportFileGenerator::GenerateRequiredCMakeVersion(
std::ostream& os, const char* versionString)
{
/* clang-format off */
os << "if(CMAKE_VERSION VERSION_LESS " << versionString << ")\n"
" message(FATAL_ERROR \"This file relies on consumers using "
"CMake " << versionString << " or greater.\")\n"
"endif()\n\n";
/* clang-format on */
}
bool cmExportFileGenerator::PopulateInterfaceLinkLibrariesProperty(
cmGeneratorTarget* target,
cmGeneratorExpression::PreprocessContext preprocessRule,
ImportPropertyMap& properties, std::vector<std::string>& missingTargets)
{
if (!target->IsLinkable()) {
return false;
}
const char* input = target->GetProperty("INTERFACE_LINK_LIBRARIES");
if (input) {
std::string prepro =
cmGeneratorExpression::Preprocess(input, preprocessRule);
if (!prepro.empty()) {
this->ResolveTargetsInGeneratorExpressions(
prepro, target, missingTargets, ReplaceFreeTargets);
properties["INTERFACE_LINK_LIBRARIES"] = prepro;
return true;
}
}
return false;
}
static bool isSubDirectory(const char* a, const char* b)
{
return (cmSystemTools::ComparePath(a, b) ||
cmSystemTools::IsSubDirectory(a, b));
}
static bool checkInterfaceDirs(const std::string& prepro,
cmGeneratorTarget* target,
const std::string& prop)
{
const char* installDir =
target->Makefile->GetSafeDefinition("CMAKE_INSTALL_PREFIX");
const char* topSourceDir = target->GetLocalGenerator()->GetSourceDirectory();
const char* topBinaryDir = target->GetLocalGenerator()->GetBinaryDirectory();
std::vector<std::string> parts;
cmGeneratorExpression::Split(prepro, parts);
const bool inSourceBuild = strcmp(topSourceDir, topBinaryDir) == 0;
bool hadFatalError = false;
for (std::vector<std::string>::iterator li = parts.begin();
li != parts.end(); ++li) {
size_t genexPos = cmGeneratorExpression::Find(*li);
if (genexPos == 0) {
continue;
}
cmake::MessageType messageType = cmake::FATAL_ERROR;
std::ostringstream e;
if (genexPos != std::string::npos) {
if (prop == "INTERFACE_INCLUDE_DIRECTORIES") {
switch (target->GetPolicyStatusCMP0041()) {
case cmPolicies::WARN:
messageType = cmake::WARNING;
e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0041) << "\n";
break;
case cmPolicies::OLD:
continue;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
case cmPolicies::NEW:
hadFatalError = true;
break; // Issue fatal message.
}
} else {
hadFatalError = true;
}
}
if (cmHasLiteralPrefix(li->c_str(), "${_IMPORT_PREFIX}")) {
continue;
}
if (!cmSystemTools::FileIsFullPath(li->c_str())) {
/* clang-format off */
e << "Target \"" << target->GetName() << "\" " << prop <<
" property contains relative path:\n"
" \"" << *li << "\"";
/* clang-format on */
target->GetLocalGenerator()->IssueMessage(messageType, e.str());
}
bool inBinary = isSubDirectory(li->c_str(), topBinaryDir);
bool inSource = isSubDirectory(li->c_str(), topSourceDir);
if (isSubDirectory(li->c_str(), installDir)) {
// The include directory is inside the install tree. If the
// install tree is not inside the source tree or build tree then
// fall through to the checks below that the include directory is not
// also inside the source tree or build tree.
bool shouldContinue =
(!inBinary || isSubDirectory(installDir, topBinaryDir)) &&
(!inSource || isSubDirectory(installDir, topSourceDir));
if (prop == "INTERFACE_INCLUDE_DIRECTORIES") {
if (!shouldContinue) {
switch (target->GetPolicyStatusCMP0052()) {
case cmPolicies::WARN: {
std::ostringstream s;
s << cmPolicies::GetPolicyWarning(cmPolicies::CMP0052) << "\n";
s << "Directory:\n \"" << *li
<< "\"\nin "
"INTERFACE_INCLUDE_DIRECTORIES of target \""
<< target->GetName() << "\" is a subdirectory of the install "
"directory:\n \""
<< installDir << "\"\nhowever it is also "
"a subdirectory of the "
<< (inBinary ? "build" : "source") << " tree:\n \""
<< (inBinary ? topBinaryDir : topSourceDir) << "\""
<< std::endl;
target->GetLocalGenerator()->IssueMessage(cmake::AUTHOR_WARNING,
s.str());
}
case cmPolicies::OLD:
shouldContinue = true;
break;
case cmPolicies::REQUIRED_ALWAYS:
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::NEW:
break;
}
}
}
if (shouldContinue) {
continue;
}
}
if (inBinary) {
/* clang-format off */
e << "Target \"" << target->GetName() << "\" " << prop <<
" property contains path:\n"
" \"" << *li << "\"\nwhich is prefixed in the build directory.";
/* clang-format on */
target->GetLocalGenerator()->IssueMessage(messageType, e.str());
}
if (!inSourceBuild) {
if (inSource) {
e << "Target \"" << target->GetName() << "\" " << prop
<< " property contains path:\n"
" \""
<< *li << "\"\nwhich is prefixed in the source directory.";
target->GetLocalGenerator()->IssueMessage(messageType, e.str());
}
}
}
return !hadFatalError;
}
static void prefixItems(std::string& exportDirs)
{
std::vector<std::string> entries;
cmGeneratorExpression::Split(exportDirs, entries);
exportDirs = "";
const char* sep = "";
for (std::vector<std::string>::const_iterator ei = entries.begin();
ei != entries.end(); ++ei) {
exportDirs += sep;
sep = ";";
if (!cmSystemTools::FileIsFullPath(ei->c_str()) &&
ei->find("${_IMPORT_PREFIX}") == std::string::npos) {
exportDirs += "${_IMPORT_PREFIX}/";
}
exportDirs += *ei;
}
}
void cmExportFileGenerator::PopulateSourcesInterface(
cmTargetExport* tei, cmGeneratorExpression::PreprocessContext preprocessRule,
ImportPropertyMap& properties, std::vector<std::string>& missingTargets)
{
cmGeneratorTarget* gt = tei->Target;
assert(preprocessRule == cmGeneratorExpression::InstallInterface);
const char* propName = "INTERFACE_SOURCES";
const char* input = gt->GetProperty(propName);
if (!input) {
return;
}
if (!*input) {
properties[propName] = "";
return;
}
std::string prepro =
cmGeneratorExpression::Preprocess(input, preprocessRule, true);
if (!prepro.empty()) {
this->ResolveTargetsInGeneratorExpressions(prepro, gt, missingTargets);
if (!checkInterfaceDirs(prepro, gt, propName)) {
return;
}
properties[propName] = prepro;
}
}
void cmExportFileGenerator::PopulateIncludeDirectoriesInterface(
cmTargetExport* tei, cmGeneratorExpression::PreprocessContext preprocessRule,
ImportPropertyMap& properties, std::vector<std::string>& missingTargets)
{
cmGeneratorTarget* target = tei->Target;
assert(preprocessRule == cmGeneratorExpression::InstallInterface);
const char* propName = "INTERFACE_INCLUDE_DIRECTORIES";
const char* input = target->GetProperty(propName);
cmGeneratorExpression ge;
std::string dirs = cmGeneratorExpression::Preprocess(
tei->InterfaceIncludeDirectories, preprocessRule, true);
this->ReplaceInstallPrefix(dirs);
CM_AUTO_PTR<cmCompiledGeneratorExpression> cge = ge.Parse(dirs);
std::string exportDirs =
cge->Evaluate(target->GetLocalGenerator(), "", false, target);
if (cge->GetHadContextSensitiveCondition()) {
cmLocalGenerator* lg = target->GetLocalGenerator();
std::ostringstream e;
e << "Target \"" << target->GetName()
<< "\" is installed with "
"INCLUDES DESTINATION set to a context sensitive path. Paths which "
"depend on the configuration, policy values or the link interface "
"are "
"not supported. Consider using target_include_directories instead.";
lg->IssueMessage(cmake::FATAL_ERROR, e.str());
return;
}
if (!input && exportDirs.empty()) {
return;
}
if ((input && !*input) && exportDirs.empty()) {
// Set to empty
properties[propName] = "";
return;
}
prefixItems(exportDirs);
std::string includes = (input ? input : "");
const char* sep = input ? ";" : "";
includes += sep + exportDirs;
std::string prepro =
cmGeneratorExpression::Preprocess(includes, preprocessRule, true);
if (!prepro.empty()) {
this->ResolveTargetsInGeneratorExpressions(prepro, target, missingTargets);
if (!checkInterfaceDirs(prepro, target, propName)) {
return;
}
properties[propName] = prepro;
}
}
void cmExportFileGenerator::PopulateInterfaceProperty(
const std::string& propName, cmGeneratorTarget* target,
cmGeneratorExpression::PreprocessContext preprocessRule,
ImportPropertyMap& properties, std::vector<std::string>& missingTargets)
{
this->PopulateInterfaceProperty(propName, propName, target, preprocessRule,
properties, missingTargets);
}
void getPropertyContents(cmGeneratorTarget const* tgt, const std::string& prop,
std::set<std::string>& ifaceProperties)
{
const char* p = tgt->GetProperty(prop);
if (!p) {
return;
}
std::vector<std::string> content;
cmSystemTools::ExpandListArgument(p, content);
ifaceProperties.insert(content.begin(), content.end());
}
void getCompatibleInterfaceProperties(cmGeneratorTarget* target,
std::set<std::string>& ifaceProperties,
const std::string& config)
{
cmComputeLinkInformation* info = target->GetLinkInformation(config);
if (!info) {
cmLocalGenerator* lg = target->GetLocalGenerator();
std::ostringstream e;
e << "Exporting the target \"" << target->GetName()
<< "\" is not "
"allowed since its linker language cannot be determined";
lg->IssueMessage(cmake::FATAL_ERROR, e.str());
return;
}
const cmComputeLinkInformation::ItemVector& deps = info->GetItems();
for (cmComputeLinkInformation::ItemVector::const_iterator li = deps.begin();
li != deps.end(); ++li) {
if (!li->Target) {
continue;
}
getPropertyContents(li->Target, "COMPATIBLE_INTERFACE_BOOL",
ifaceProperties);
getPropertyContents(li->Target, "COMPATIBLE_INTERFACE_STRING",
ifaceProperties);
getPropertyContents(li->Target, "COMPATIBLE_INTERFACE_NUMBER_MIN",
ifaceProperties);
getPropertyContents(li->Target, "COMPATIBLE_INTERFACE_NUMBER_MAX",
ifaceProperties);
}
}
void cmExportFileGenerator::PopulateCompatibleInterfaceProperties(
cmGeneratorTarget* gtarget, ImportPropertyMap& properties)
{
this->PopulateInterfaceProperty("COMPATIBLE_INTERFACE_BOOL", gtarget,
properties);
this->PopulateInterfaceProperty("COMPATIBLE_INTERFACE_STRING", gtarget,
properties);
this->PopulateInterfaceProperty("COMPATIBLE_INTERFACE_NUMBER_MIN", gtarget,
properties);
this->PopulateInterfaceProperty("COMPATIBLE_INTERFACE_NUMBER_MAX", gtarget,
properties);
std::set<std::string> ifaceProperties;
getPropertyContents(gtarget, "COMPATIBLE_INTERFACE_BOOL", ifaceProperties);
getPropertyContents(gtarget, "COMPATIBLE_INTERFACE_STRING", ifaceProperties);
getPropertyContents(gtarget, "COMPATIBLE_INTERFACE_NUMBER_MIN",
ifaceProperties);
getPropertyContents(gtarget, "COMPATIBLE_INTERFACE_NUMBER_MAX",
ifaceProperties);
if (gtarget->GetType() != cmState::INTERFACE_LIBRARY) {
getCompatibleInterfaceProperties(gtarget, ifaceProperties, "");
std::vector<std::string> configNames;
gtarget->Target->GetMakefile()->GetConfigurations(configNames);
for (std::vector<std::string>::const_iterator ci = configNames.begin();
ci != configNames.end(); ++ci) {
getCompatibleInterfaceProperties(gtarget, ifaceProperties, *ci);
}
}
for (std::set<std::string>::const_iterator it = ifaceProperties.begin();
it != ifaceProperties.end(); ++it) {
this->PopulateInterfaceProperty("INTERFACE_" + *it, gtarget, properties);
}
}
void cmExportFileGenerator::GenerateInterfaceProperties(
const cmGeneratorTarget* target, std::ostream& os,
const ImportPropertyMap& properties)
{
if (!properties.empty()) {
std::string targetName = this->Namespace;
targetName += target->GetExportName();
os << "set_target_properties(" << targetName << " PROPERTIES\n";
for (ImportPropertyMap::const_iterator pi = properties.begin();
pi != properties.end(); ++pi) {
os << " " << pi->first << " " << cmExportFileGeneratorEscape(pi->second)
<< "\n";
}
os << ")\n\n";
}
}
bool cmExportFileGenerator::AddTargetNamespace(
std::string& input, cmGeneratorTarget* target,
std::vector<std::string>& missingTargets)
{
cmLocalGenerator* lg = target->GetLocalGenerator();
cmGeneratorTarget* tgt = lg->FindGeneratorTargetToUse(input);
if (!tgt) {
return false;
}
if (tgt->IsImported()) {
return true;
}
if (this->ExportedTargets.find(tgt) != this->ExportedTargets.end()) {
input = this->Namespace + tgt->GetExportName();
} else {
std::string namespacedTarget;
this->HandleMissingTarget(namespacedTarget, missingTargets, target, tgt);
if (!namespacedTarget.empty()) {
input = namespacedTarget;
}
}
return true;
}
void cmExportFileGenerator::ResolveTargetsInGeneratorExpressions(
std::string& input, cmGeneratorTarget* target,
std::vector<std::string>& missingTargets, FreeTargetsReplace replace)
{
if (replace == NoReplaceFreeTargets) {
this->ResolveTargetsInGeneratorExpression(input, target, missingTargets);
return;
}
std::vector<std::string> parts;
cmGeneratorExpression::Split(input, parts);
std::string sep;
input = "";
for (std::vector<std::string>::iterator li = parts.begin();
li != parts.end(); ++li) {
if (cmGeneratorExpression::Find(*li) == std::string::npos) {
this->AddTargetNamespace(*li, target, missingTargets);
} else {
this->ResolveTargetsInGeneratorExpression(*li, target, missingTargets);
}
input += sep + *li;
sep = ";";
}
}
void cmExportFileGenerator::ResolveTargetsInGeneratorExpression(
std::string& input, cmGeneratorTarget* target,
std::vector<std::string>& missingTargets)
{
std::string::size_type pos = 0;
std::string::size_type lastPos = pos;
while ((pos = input.find("$<TARGET_PROPERTY:", lastPos)) != input.npos) {
std::string::size_type nameStartPos =
pos + sizeof("$<TARGET_PROPERTY:") - 1;
std::string::size_type closePos = input.find('>', nameStartPos);
std::string::size_type commaPos = input.find(',', nameStartPos);
std::string::size_type nextOpenPos = input.find("$<", nameStartPos);
if (commaPos == input.npos // Implied 'this' target
|| closePos == input.npos // Imcomplete expression.
|| closePos < commaPos // Implied 'this' target
|| nextOpenPos < commaPos) // Non-literal
{
lastPos = nameStartPos;
continue;
}
std::string targetName =
input.substr(nameStartPos, commaPos - nameStartPos);
if (this->AddTargetNamespace(targetName, target, missingTargets)) {
input.replace(nameStartPos, commaPos - nameStartPos, targetName);
}
lastPos = nameStartPos + targetName.size() + 1;
}
std::string errorString;
pos = 0;
lastPos = pos;
while ((pos = input.find("$<TARGET_NAME:", lastPos)) != input.npos) {
std::string::size_type nameStartPos = pos + sizeof("$<TARGET_NAME:") - 1;
std::string::size_type endPos = input.find('>', nameStartPos);
if (endPos == input.npos) {
errorString = "$<TARGET_NAME:...> expression incomplete";
break;
}
std::string targetName = input.substr(nameStartPos, endPos - nameStartPos);
if (targetName.find("$<") != input.npos) {
errorString = "$<TARGET_NAME:...> requires its parameter to be a "
"literal.";
break;
}
if (!this->AddTargetNamespace(targetName, target, missingTargets)) {
errorString = "$<TARGET_NAME:...> requires its parameter to be a "
"reachable target.";
break;
}
input.replace(pos, endPos - pos + 1, targetName);
lastPos = endPos;
}
pos = 0;
lastPos = pos;
while (errorString.empty() &&
(pos = input.find("$<LINK_ONLY:", lastPos)) != input.npos) {
std::string::size_type nameStartPos = pos + sizeof("$<LINK_ONLY:") - 1;
std::string::size_type endPos = input.find('>', nameStartPos);
if (endPos == input.npos) {
errorString = "$<LINK_ONLY:...> expression incomplete";
break;
}
std::string libName = input.substr(nameStartPos, endPos - nameStartPos);
if (cmGeneratorExpression::IsValidTargetName(libName) &&
this->AddTargetNamespace(libName, target, missingTargets)) {
input.replace(nameStartPos, endPos - nameStartPos, libName);
}
lastPos = nameStartPos + libName.size() + 1;
}
this->ReplaceInstallPrefix(input);
if (!errorString.empty()) {
target->GetLocalGenerator()->IssueMessage(cmake::FATAL_ERROR, errorString);
}
}
void cmExportFileGenerator::ReplaceInstallPrefix(std::string& /*unused*/)
{
// Do nothing
}
void cmExportFileGenerator::SetImportLinkInterface(
const std::string& config, std::string const& suffix,
cmGeneratorExpression::PreprocessContext preprocessRule,
cmGeneratorTarget* target, ImportPropertyMap& properties,
std::vector<std::string>& missingTargets)
{
// Add the transitive link dependencies for this configuration.
cmLinkInterface const* iface = target->GetLinkInterface(config, target);
if (!iface) {
return;
}
if (iface->ImplementationIsInterface) {
// Policy CMP0022 must not be NEW.
this->SetImportLinkProperty(suffix, target,
"IMPORTED_LINK_INTERFACE_LIBRARIES",
iface->Libraries, properties, missingTargets);
return;
}
const char* propContent;
if (const char* prop_suffixed =
target->GetProperty("LINK_INTERFACE_LIBRARIES" + suffix)) {
propContent = prop_suffixed;
} else if (const char* prop =
target->GetProperty("LINK_INTERFACE_LIBRARIES")) {
propContent = prop;
} else {
return;
}
const bool newCMP0022Behavior =
target->GetPolicyStatusCMP0022() != cmPolicies::WARN &&
target->GetPolicyStatusCMP0022() != cmPolicies::OLD;
if (newCMP0022Behavior && !this->ExportOld) {
cmLocalGenerator* lg = target->GetLocalGenerator();
std::ostringstream e;
e << "Target \"" << target->GetName()
<< "\" has policy CMP0022 enabled, "
"but also has old-style LINK_INTERFACE_LIBRARIES properties "
"populated, but it was exported without the "
"EXPORT_LINK_INTERFACE_LIBRARIES to export the old-style properties";
lg->IssueMessage(cmake::FATAL_ERROR, e.str());
return;
}
if (!*propContent) {
properties["IMPORTED_LINK_INTERFACE_LIBRARIES" + suffix] = "";
return;
}
std::string prepro =
cmGeneratorExpression::Preprocess(propContent, preprocessRule);
if (!prepro.empty()) {
this->ResolveTargetsInGeneratorExpressions(prepro, target, missingTargets,
ReplaceFreeTargets);
properties["IMPORTED_LINK_INTERFACE_LIBRARIES" + suffix] = prepro;
}
}
void cmExportFileGenerator::SetImportDetailProperties(
const std::string& config, std::string const& suffix,
cmGeneratorTarget* target, ImportPropertyMap& properties,
std::vector<std::string>& missingTargets)
{
// Get the makefile in which to lookup target information.
cmMakefile* mf = target->Makefile;
// Add the soname for unix shared libraries.
if (target->GetType() == cmState::SHARED_LIBRARY ||
target->GetType() == cmState::MODULE_LIBRARY) {
if (!target->IsDLLPlatform()) {
std::string prop;
std::string value;
if (target->HasSOName(config)) {
if (mf->IsOn("CMAKE_PLATFORM_HAS_INSTALLNAME")) {
value = this->InstallNameDir(target, config);
}
prop = "IMPORTED_SONAME";
value += target->GetSOName(config);
} else {
prop = "IMPORTED_NO_SONAME";
value = "TRUE";
}
prop += suffix;
properties[prop] = value;
}
}
// Add the transitive link dependencies for this configuration.
if (cmLinkInterface const* iface =
target->GetLinkInterface(config, target)) {
this->SetImportLinkProperty(suffix, target,
"IMPORTED_LINK_INTERFACE_LANGUAGES",
iface->Languages, properties, missingTargets);
std::vector<std::string> dummy;
this->SetImportLinkProperty(suffix, target,
"IMPORTED_LINK_DEPENDENT_LIBRARIES",
iface->SharedDeps, properties, dummy);
if (iface->Multiplicity > 0) {
std::string prop = "IMPORTED_LINK_INTERFACE_MULTIPLICITY";
prop += suffix;
std::ostringstream m;
m << iface->Multiplicity;
properties[prop] = m.str();
}
}
}
template <typename T>
void cmExportFileGenerator::SetImportLinkProperty(
std::string const& suffix, cmGeneratorTarget* target,
const std::string& propName, std::vector<T> const& entries,
ImportPropertyMap& properties, std::vector<std::string>& missingTargets)
{
// Skip the property if there are no entries.
if (entries.empty()) {
return;
}
// Construct the property value.
std::string link_entries;
const char* sep = "";
for (typename std::vector<T>::const_iterator li = entries.begin();
li != entries.end(); ++li) {
// Separate this from the previous entry.
link_entries += sep;
sep = ";";
std::string temp = *li;
this->AddTargetNamespace(temp, target, missingTargets);
link_entries += temp;
}
// Store the property.
std::string prop = propName;
prop += suffix;
properties[prop] = link_entries;
}
void cmExportFileGenerator::GeneratePolicyHeaderCode(std::ostream& os)
{
// Protect that file against use with older CMake versions.
/* clang-format off */
os << "# Generated by CMake\n\n";
os << "if(\"${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}\" LESS 2.5)\n"
<< " message(FATAL_ERROR \"CMake >= 2.6.0 required\")\n"
<< "endif()\n";
/* clang-format on */
// Isolate the file policy level.
// We use 2.6 here instead of the current version because newer
// versions of CMake should be able to export files imported by 2.6
// until the import format changes.
/* clang-format off */
os << "cmake_policy(PUSH)\n"
<< "cmake_policy(VERSION 2.6)\n";
/* clang-format on */
}
void cmExportFileGenerator::GeneratePolicyFooterCode(std::ostream& os)
{
os << "cmake_policy(POP)\n";
}
void cmExportFileGenerator::GenerateImportHeaderCode(std::ostream& os,
const std::string& config)
{
os << "#----------------------------------------------------------------\n"
<< "# Generated CMake target import file";
if (!config.empty()) {
os << " for configuration \"" << config << "\".\n";
} else {
os << ".\n";
}
os << "#----------------------------------------------------------------\n"
<< "\n";
this->GenerateImportVersionCode(os);
}
void cmExportFileGenerator::GenerateImportFooterCode(std::ostream& os)
{
os << "# Commands beyond this point should not need to know the version.\n"
<< "set(CMAKE_IMPORT_FILE_VERSION)\n";
}
void cmExportFileGenerator::GenerateImportVersionCode(std::ostream& os)
{
// Store an import file format version. This will let us change the
// format later while still allowing old import files to work.
/* clang-format off */
os << "# Commands may need to know the format version.\n"
<< "set(CMAKE_IMPORT_FILE_VERSION 1)\n"
<< "\n";
/* clang-format on */
}
void cmExportFileGenerator::GenerateExpectedTargetsCode(
std::ostream& os, const std::string& expectedTargets)
{
/* clang-format off */
os << "# Protect against multiple inclusion, which would fail when already "
"imported targets are added once more.\n"
"set(_targetsDefined)\n"
"set(_targetsNotDefined)\n"
"set(_expectedTargets)\n"
"foreach(_expectedTarget " << expectedTargets << ")\n"
" list(APPEND _expectedTargets ${_expectedTarget})\n"
" if(NOT TARGET ${_expectedTarget})\n"
" list(APPEND _targetsNotDefined ${_expectedTarget})\n"
" endif()\n"
" if(TARGET ${_expectedTarget})\n"
" list(APPEND _targetsDefined ${_expectedTarget})\n"
" endif()\n"
"endforeach()\n"
"if(\"${_targetsDefined}\" STREQUAL \"${_expectedTargets}\")\n"
" unset(_targetsDefined)\n"
" unset(_targetsNotDefined)\n"
" unset(_expectedTargets)\n"
" set(CMAKE_IMPORT_FILE_VERSION)\n"
" cmake_policy(POP)\n"
" return()\n"
"endif()\n"
"if(NOT \"${_targetsDefined}\" STREQUAL \"\")\n"
" message(FATAL_ERROR \"Some (but not all) targets in this export "
"set were already defined.\\nTargets Defined: ${_targetsDefined}\\n"
"Targets not yet defined: ${_targetsNotDefined}\\n\")\n"
"endif()\n"
"unset(_targetsDefined)\n"
"unset(_targetsNotDefined)\n"
"unset(_expectedTargets)\n"
"\n\n";
/* clang-format on */
}
void cmExportFileGenerator::GenerateImportTargetCode(
std::ostream& os, const cmGeneratorTarget* target)
{
// Construct the imported target name.
std::string targetName = this->Namespace;
targetName += target->GetExportName();
// Create the imported target.
os << "# Create imported target " << targetName << "\n";
switch (target->GetType()) {
case cmState::EXECUTABLE:
os << "add_executable(" << targetName << " IMPORTED)\n";
break;
case cmState::STATIC_LIBRARY:
os << "add_library(" << targetName << " STATIC IMPORTED)\n";
break;
case cmState::SHARED_LIBRARY:
os << "add_library(" << targetName << " SHARED IMPORTED)\n";
break;
case cmState::MODULE_LIBRARY:
os << "add_library(" << targetName << " MODULE IMPORTED)\n";
break;
case cmState::UNKNOWN_LIBRARY:
os << "add_library(" << targetName << " UNKNOWN IMPORTED)\n";
break;
case cmState::INTERFACE_LIBRARY:
os << "add_library(" << targetName << " INTERFACE IMPORTED)\n";
break;
default: // should never happen
break;
}
// Mark the imported executable if it has exports.
if (target->IsExecutableWithExports()) {
os << "set_property(TARGET " << targetName
<< " PROPERTY ENABLE_EXPORTS 1)\n";
}
// Mark the imported library if it is a framework.
if (target->IsFrameworkOnApple()) {
os << "set_property(TARGET " << targetName << " PROPERTY FRAMEWORK 1)\n";
}
// Mark the imported executable if it is an application bundle.
if (target->IsAppBundleOnApple()) {
os << "set_property(TARGET " << targetName
<< " PROPERTY MACOSX_BUNDLE 1)\n";
}
if (target->IsCFBundleOnApple()) {
os << "set_property(TARGET " << targetName << " PROPERTY BUNDLE 1)\n";
}
os << "\n";
}
void cmExportFileGenerator::GenerateImportPropertyCode(
std::ostream& os, const std::string& config, cmGeneratorTarget const* target,
ImportPropertyMap const& properties)
{
// Construct the imported target name.
std::string targetName = this->Namespace;
targetName += target->GetExportName();
// Set the import properties.
os << "# Import target \"" << targetName << "\" for configuration \""
<< config << "\"\n";
os << "set_property(TARGET " << targetName
<< " APPEND PROPERTY IMPORTED_CONFIGURATIONS ";
if (!config.empty()) {
os << cmSystemTools::UpperCase(config);
} else {
os << "NOCONFIG";
}
os << ")\n";
os << "set_target_properties(" << targetName << " PROPERTIES\n";
for (ImportPropertyMap::const_iterator pi = properties.begin();
pi != properties.end(); ++pi) {
os << " " << pi->first << " " << cmExportFileGeneratorEscape(pi->second)
<< "\n";
}
os << " )\n"
<< "\n";
}
void cmExportFileGenerator::GenerateMissingTargetsCheckCode(
std::ostream& os, const std::vector<std::string>& missingTargets)
{
if (missingTargets.empty()) {
/* clang-format off */
os << "# This file does not depend on other imported targets which have\n"
"# been exported from the same project but in a separate "
"export set.\n\n";
/* clang-format on */
return;
}
/* clang-format off */
os << "# Make sure the targets which have been exported in some other \n"
"# export set exist.\n"
"unset(${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE_targets)\n"
"foreach(_target ";
/* clang-format on */
std::set<std::string> emitted;
for (unsigned int i = 0; i < missingTargets.size(); ++i) {
if (emitted.insert(missingTargets[i]).second) {
os << "\"" << missingTargets[i] << "\" ";
}
}
/* clang-format off */
os << ")\n"
" if(NOT TARGET \"${_target}\" )\n"
" set(${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE_targets \""
"${${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE_targets} ${_target}\")"
"\n"
" endif()\n"
"endforeach()\n"
"\n"
"if(DEFINED ${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE_targets)\n"
" if(CMAKE_FIND_PACKAGE_NAME)\n"
" set( ${CMAKE_FIND_PACKAGE_NAME}_FOUND FALSE)\n"
" set( ${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE "
"\"The following imported targets are "
"referenced, but are missing: "
"${${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE_targets}\")\n"
" else()\n"
" message(FATAL_ERROR \"The following imported targets are "
"referenced, but are missing: "
"${${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE_targets}\")\n"
" endif()\n"
"endif()\n"
"unset(${CMAKE_FIND_PACKAGE_NAME}_NOT_FOUND_MESSAGE_targets)\n"
"\n";
/* clang-format on */
}
void cmExportFileGenerator::GenerateImportedFileCheckLoop(std::ostream& os)
{
// Add code which verifies at cmake time that the file which is being
// imported actually exists on disk. This should in theory always be theory
// case, but still when packages are split into normal and development
// packages this might get broken (e.g. the Config.cmake could be part of
// the non-development package, something similar happened to me without
// on SUSE with a mysql pkg-config file, which claimed everything is fine,
// but the development package was not installed.).
/* clang-format off */
os << "# Loop over all imported files and verify that they actually exist\n"
"foreach(target ${_IMPORT_CHECK_TARGETS} )\n"
" foreach(file ${_IMPORT_CHECK_FILES_FOR_${target}} )\n"
" if(NOT EXISTS \"${file}\" )\n"
" message(FATAL_ERROR \"The imported target \\\"${target}\\\""
" references the file\n"
" \\\"${file}\\\"\n"
"but this file does not exist. Possible reasons include:\n"
"* The file was deleted, renamed, or moved to another location.\n"
"* An install or uninstall procedure did not complete successfully.\n"
"* The installation package was faulty and contained\n"
" \\\"${CMAKE_CURRENT_LIST_FILE}\\\"\n"
"but not all the files it references.\n"
"\")\n"
" endif()\n"
" endforeach()\n"
" unset(_IMPORT_CHECK_FILES_FOR_${target})\n"
"endforeach()\n"
"unset(_IMPORT_CHECK_TARGETS)\n"
"\n";
/* clang-format on */
}
void cmExportFileGenerator::GenerateImportedFileChecksCode(
std::ostream& os, cmGeneratorTarget* target,
ImportPropertyMap const& properties,
const std::set<std::string>& importedLocations)
{
// Construct the imported target name.
std::string targetName = this->Namespace;
targetName += target->GetExportName();
os << "list(APPEND _IMPORT_CHECK_TARGETS " << targetName
<< " )\n"
"list(APPEND _IMPORT_CHECK_FILES_FOR_"
<< targetName << " ";
for (std::set<std::string>::const_iterator li = importedLocations.begin();
li != importedLocations.end(); ++li) {
ImportPropertyMap::const_iterator pi = properties.find(*li);
if (pi != properties.end()) {
os << cmExportFileGeneratorEscape(pi->second) << " ";
}
}
os << ")\n\n";
}
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