You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
3.1 KiB
94 lines
3.1 KiB
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
file Copyright.txt or https://cmake.org/licensing for details. */
|
|
#include "cmOptionCommand.h"
|
|
|
|
#include "cmExecutionStatus.h"
|
|
#include "cmMakefile.h"
|
|
#include "cmMessageType.h"
|
|
#include "cmPolicies.h"
|
|
#include "cmState.h"
|
|
#include "cmStateSnapshot.h"
|
|
#include "cmStateTypes.h"
|
|
#include "cmStringAlgorithms.h"
|
|
#include "cmValue.h"
|
|
|
|
// cmOptionCommand
|
|
bool cmOptionCommand(std::vector<std::string> const& args,
|
|
cmExecutionStatus& status)
|
|
{
|
|
const bool argError = (args.size() < 2) || (args.size() > 3);
|
|
if (argError) {
|
|
std::string m = cmStrCat("called with incorrect number of arguments: ",
|
|
cmJoin(args, " "));
|
|
status.SetError(m);
|
|
return false;
|
|
}
|
|
|
|
// Determine the state of the option policy
|
|
bool checkAndWarn = false;
|
|
{
|
|
auto policyStatus =
|
|
status.GetMakefile().GetPolicyStatus(cmPolicies::CMP0077);
|
|
const auto& existsBeforeSet =
|
|
status.GetMakefile().GetStateSnapshot().GetDefinition(args[0]);
|
|
switch (policyStatus) {
|
|
case cmPolicies::WARN:
|
|
checkAndWarn = (existsBeforeSet != nullptr);
|
|
CM_FALLTHROUGH;
|
|
case cmPolicies::OLD:
|
|
// OLD behavior does not warn.
|
|
break;
|
|
case cmPolicies::REQUIRED_ALWAYS:
|
|
case cmPolicies::REQUIRED_IF_USED:
|
|
case cmPolicies::NEW: {
|
|
// See if a local variable with this name already exists.
|
|
// If so we ignore the option command.
|
|
if (existsBeforeSet) {
|
|
return true;
|
|
}
|
|
} break;
|
|
}
|
|
}
|
|
|
|
// See if a cache variable with this name already exists
|
|
// If so just make sure the doc state is correct
|
|
cmState* state = status.GetMakefile().GetState();
|
|
cmValue existingValue = state->GetCacheEntryValue(args[0]);
|
|
if (existingValue &&
|
|
(state->GetCacheEntryType(args[0]) != cmStateEnums::UNINITIALIZED)) {
|
|
state->SetCacheEntryProperty(args[0], "HELPSTRING", args[1]);
|
|
return true;
|
|
}
|
|
|
|
// Nothing in the cache so add it
|
|
std::string initialValue = existingValue ? *existingValue : "Off";
|
|
if (args.size() == 3) {
|
|
initialValue = args[2];
|
|
}
|
|
bool init = cmIsOn(initialValue);
|
|
status.GetMakefile().AddCacheDefinition(args[0], init ? "ON" : "OFF",
|
|
args[1].c_str(), cmStateEnums::BOOL);
|
|
if (status.GetMakefile().GetPolicyStatus(cmPolicies::CMP0077) !=
|
|
cmPolicies::NEW &&
|
|
status.GetMakefile().GetPolicyStatus(cmPolicies::CMP0126) ==
|
|
cmPolicies::NEW) {
|
|
// if there was a definition then remove it
|
|
status.GetMakefile().GetStateSnapshot().RemoveDefinition(args[0]);
|
|
}
|
|
|
|
if (checkAndWarn) {
|
|
const auto& existsAfterSet =
|
|
status.GetMakefile().GetStateSnapshot().GetDefinition(args[0]);
|
|
if (!existsAfterSet) {
|
|
status.GetMakefile().IssueMessage(
|
|
MessageType::AUTHOR_WARNING,
|
|
cmStrCat(cmPolicies::GetPolicyWarning(cmPolicies::CMP0077),
|
|
"\n"
|
|
"For compatibility with older versions of CMake, option "
|
|
"is clearing the normal variable '",
|
|
args[0], "'."));
|
|
}
|
|
}
|
|
return true;
|
|
}
|