mirror of
https://github.com/reactos/CMake.git
synced 2024-12-05 02:06:34 +00:00
109 lines
2.7 KiB
C++
109 lines
2.7 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
file Copyright.txt or https://cmake.org/licensing for details. */
|
|
#include "cmIncludeGuardCommand.h"
|
|
|
|
#include "cmExecutionStatus.h"
|
|
#include "cmMakefile.h"
|
|
#include "cmStateDirectory.h"
|
|
#include "cmStateSnapshot.h"
|
|
#include "cmSystemTools.h"
|
|
#include "cmake.h"
|
|
|
|
namespace {
|
|
|
|
enum IncludeGuardScope
|
|
{
|
|
VARIABLE,
|
|
DIRECTORY,
|
|
GLOBAL
|
|
};
|
|
|
|
std::string GetIncludeGuardVariableName(std::string const& filePath)
|
|
{
|
|
std::string result = "__INCGUARD_";
|
|
#ifdef CMAKE_BUILD_WITH_CMAKE
|
|
result += cmSystemTools::ComputeStringMD5(filePath);
|
|
#else
|
|
result += cmSystemTools::MakeCidentifier(filePath);
|
|
#endif
|
|
result += "__";
|
|
return result;
|
|
}
|
|
|
|
bool CheckIncludeGuardIsSet(cmMakefile* mf, std::string const& includeGuardVar)
|
|
{
|
|
if (mf->GetProperty(includeGuardVar)) {
|
|
return true;
|
|
}
|
|
cmStateSnapshot dirSnapshot =
|
|
mf->GetStateSnapshot().GetBuildsystemDirectoryParent();
|
|
while (dirSnapshot.GetState()) {
|
|
cmStateDirectory stateDir = dirSnapshot.GetDirectory();
|
|
if (stateDir.GetProperty(includeGuardVar)) {
|
|
return true;
|
|
}
|
|
dirSnapshot = dirSnapshot.GetBuildsystemDirectoryParent();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
} // anonymous namespace
|
|
|
|
// cmIncludeGuardCommand
|
|
bool cmIncludeGuardCommand::InitialPass(std::vector<std::string> const& args,
|
|
cmExecutionStatus& status)
|
|
{
|
|
if (args.size() > 1) {
|
|
this->SetError(
|
|
"given an invalid number of arguments. The command takes at "
|
|
"most 1 argument.");
|
|
return false;
|
|
}
|
|
|
|
IncludeGuardScope scope = VARIABLE;
|
|
|
|
if (!args.empty()) {
|
|
std::string const& arg = args[0];
|
|
if (arg == "DIRECTORY") {
|
|
scope = DIRECTORY;
|
|
} else if (arg == "GLOBAL") {
|
|
scope = GLOBAL;
|
|
} else {
|
|
this->SetError("given an invalid scope: " + arg);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
std::string includeGuardVar = GetIncludeGuardVariableName(
|
|
this->Makefile->GetDefinition("CMAKE_CURRENT_LIST_FILE"));
|
|
|
|
cmMakefile* const mf = this->Makefile;
|
|
|
|
switch (scope) {
|
|
case VARIABLE:
|
|
if (mf->IsDefinitionSet(includeGuardVar)) {
|
|
status.SetReturnInvoked();
|
|
return true;
|
|
}
|
|
mf->AddDefinition(includeGuardVar, true);
|
|
break;
|
|
case DIRECTORY:
|
|
if (CheckIncludeGuardIsSet(mf, includeGuardVar)) {
|
|
status.SetReturnInvoked();
|
|
return true;
|
|
}
|
|
mf->SetProperty(includeGuardVar, "TRUE");
|
|
break;
|
|
case GLOBAL:
|
|
cmake* const cm = mf->GetCMakeInstance();
|
|
if (cm->GetProperty(includeGuardVar)) {
|
|
status.SetReturnInvoked();
|
|
return true;
|
|
}
|
|
cm->SetProperty(includeGuardVar, "TRUE");
|
|
break;
|
|
}
|
|
|
|
return true;
|
|
}
|