mirror of
https://github.com/Kitware/CMake.git
synced 2025-06-14 06:37:39 +08:00
49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
file Copyright.txt or https://cmake.org/licensing for details. */
|
|
#include "cmOptionCommand.h"
|
|
|
|
// cmOptionCommand
|
|
bool cmOptionCommand::InitialPass(std::vector<std::string> const& args,
|
|
cmExecutionStatus&)
|
|
{
|
|
bool argError = false;
|
|
if (args.size() < 2) {
|
|
argError = true;
|
|
}
|
|
// for VTK 4.0 we have to support the option command with more than 3
|
|
// arguments if CMAKE_MINIMUM_REQUIRED_VERSION is not defined, if
|
|
// CMAKE_MINIMUM_REQUIRED_VERSION is defined, then we can have stricter
|
|
// checking.
|
|
if (this->Makefile->GetDefinition("CMAKE_MINIMUM_REQUIRED_VERSION")) {
|
|
if (args.size() > 3) {
|
|
argError = true;
|
|
}
|
|
}
|
|
if (argError) {
|
|
std::string m = "called with incorrect number of arguments: ";
|
|
m += cmJoin(args, " ");
|
|
this->SetError(m);
|
|
return false;
|
|
}
|
|
|
|
std::string initialValue = "Off";
|
|
// Now check and see if the value has been stored in the cache
|
|
// already, if so use that value and don't look for the program
|
|
cmState* state = this->Makefile->GetState();
|
|
const char* existingValue = state->GetCacheEntryValue(args[0]);
|
|
if (existingValue) {
|
|
if (state->GetCacheEntryType(args[0]) != cmStateEnums::UNINITIALIZED) {
|
|
state->SetCacheEntryProperty(args[0], "HELPSTRING", args[1]);
|
|
return true;
|
|
}
|
|
initialValue = existingValue;
|
|
}
|
|
if (args.size() == 3) {
|
|
initialValue = args[2];
|
|
}
|
|
bool init = cmSystemTools::IsOn(initialValue.c_str());
|
|
this->Makefile->AddCacheDefinition(args[0], init ? "ON" : "OFF",
|
|
args[1].c_str(), cmStateEnums::BOOL);
|
|
return true;
|
|
}
|