CMake/Source/cmExportLibraryDependencies...

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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
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.
============================================================================*/
#include "cmExportLibraryDependenciesCommand.h"
#include "cmGeneratedFileStream.h"
#include "cmGlobalGenerator.h"
#include "cmVersion.h"
#include "cmake.h"
#include <cmsys/auto_ptr.hxx>
bool cmExportLibraryDependenciesCommand::InitialPass(
std::vector<std::string> const& args, cmExecutionStatus&)
{
if (this->Disallowed(
cmPolicies::CMP0033,
"The export_library_dependencies command should not be called; "
"see CMP0033.")) {
return true;
}
if (args.size() < 1) {
this->SetError("called with incorrect number of arguments");
return false;
}
// store the arguments for the final pass
this->Filename = args[0];
this->Append = false;
if (args.size() > 1) {
if (args[1] == "APPEND") {
this->Append = true;
}
}
return true;
}
void cmExportLibraryDependenciesCommand::FinalPass()
{
// export_library_dependencies() shouldn't modify anything
// ensure this by calling a const method
this->ConstFinalPass();
}
void cmExportLibraryDependenciesCommand::ConstFinalPass() const
{
// Use copy-if-different if not appending.
cmsys::auto_ptr<cmsys::ofstream> foutPtr;
if (this->Append) {
cmsys::auto_ptr<cmsys::ofstream> ap(
new cmsys::ofstream(this->Filename.c_str(), std::ios::app));
foutPtr = ap;
} else {
cmsys::auto_ptr<cmGeneratedFileStream> ap(
new cmGeneratedFileStream(this->Filename.c_str(), true));
ap->SetCopyIfDifferent(true);
foutPtr = ap;
}
std::ostream& fout = *foutPtr.get();
if (!fout) {
cmSystemTools::Error("Error Writing ", this->Filename.c_str());
cmSystemTools::ReportLastSystemError("");
return;
}
// Collect dependency information about all library targets built in
// the project.
cmake* cm = this->Makefile->GetCMakeInstance();
cmGlobalGenerator* global = cm->GetGlobalGenerator();
const std::vector<cmMakefile*>& locals = global->GetMakefiles();
std::map<std::string, std::string> libDepsOld;
std::map<std::string, std::string> libDepsNew;
std::map<std::string, std::string> libTypes;
for (std::vector<cmMakefile*>::const_iterator i = locals.begin();
i != locals.end(); ++i) {
const cmTargets& tgts = (*i)->GetTargets();
for (cmTargets::const_iterator l = tgts.begin(); l != tgts.end(); ++l) {
// Get the current target.
cmTarget const& target = l->second;
// Skip non-library targets.
if (target.GetType() < cmState::STATIC_LIBRARY ||
target.GetType() > cmState::MODULE_LIBRARY) {
continue;
}
// Construct the dependency variable name.
std::string targetEntry = target.GetName();
targetEntry += "_LIB_DEPENDS";
// Construct the dependency variable value with the direct link
// dependencies.
std::string valueOld;
std::string valueNew;
cmTarget::LinkLibraryVectorType const& libs =
target.GetOriginalLinkLibraries();
for (cmTarget::LinkLibraryVectorType::const_iterator li = libs.begin();
li != libs.end(); ++li) {
std::string ltVar = li->first;
ltVar += "_LINK_TYPE";
std::string ltValue;
switch (li->second) {
case GENERAL_LibraryType:
valueNew += "general;";
ltValue = "general";
break;
case DEBUG_LibraryType:
valueNew += "debug;";
ltValue = "debug";
break;
case OPTIMIZED_LibraryType:
valueNew += "optimized;";
ltValue = "optimized";
break;
}
std::string lib = li->first;
if (cmTarget* libtgt = global->FindTarget(lib)) {
// Handle simple output name changes. This command is
// deprecated so we do not support full target name
// translation (which requires per-configuration info).
if (const char* outname = libtgt->GetProperty("OUTPUT_NAME")) {
lib = outname;
}
}
valueOld += lib;
valueOld += ";";
valueNew += lib;
valueNew += ";";
std::string& ltEntry = libTypes[ltVar];
if (ltEntry.empty()) {
ltEntry = ltValue;
} else if (ltEntry != ltValue) {
ltEntry = "general";
}
}
libDepsNew[targetEntry] = valueNew;
libDepsOld[targetEntry] = valueOld;
}
}
// Generate dependency information for both old and new style CMake
// versions.
const char* vertest =
"\"${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}\" GREATER 2.4";
fout << "# Generated by CMake " << cmVersion::GetCMakeVersion() << "\n\n";
fout << "if(" << vertest << ")\n";
fout << " # Information for CMake 2.6 and above.\n";
for (std::map<std::string, std::string>::const_iterator i =
libDepsNew.begin();
i != libDepsNew.end(); ++i) {
if (!i->second.empty()) {
fout << " set(\"" << i->first << "\" \"" << i->second << "\")\n";
}
}
fout << "else()\n";
fout << " # Information for CMake 2.4 and lower.\n";
for (std::map<std::string, std::string>::const_iterator i =
libDepsOld.begin();
i != libDepsOld.end(); ++i) {
if (!i->second.empty()) {
fout << " set(\"" << i->first << "\" \"" << i->second << "\")\n";
}
}
for (std::map<std::string, std::string>::const_iterator i = libTypes.begin();
i != libTypes.end(); ++i) {
if (i->second != "general") {
fout << " set(\"" << i->first << "\" \"" << i->second << "\")\n";
}
}
fout << "endif()\n";
return;
}