cmGetDirectoryPropertyCommand.cxx
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmGetDirectoryPropertyCommand.h"
#include "cmExecutionStatus.h"
#include "cmGlobalGenerator.h"
#include "cmMakefile.h"
#include "cmMessageType.h"
#include "cmPolicies.h"
#include "cmSystemTools.h"
#include "cmValue.h"
namespace {
void StoreResult(cmMakefile& makefile, std::string const& variable,
const char* prop);
void StoreResult(cmMakefile& makefile, std::string const& variable,
cmValue prop);
}
// cmGetDirectoryPropertyCommand
bool cmGetDirectoryPropertyCommand(std::vector<std::string> const& args,
cmExecutionStatus& status)
{
if (args.size() < 2) {
status.SetError("called with incorrect number of arguments");
return false;
}
auto i = args.begin();
std::string const& variable = *i;
++i;
// get the directory argument if there is one
cmMakefile* dir = &status.GetMakefile();
if (*i == "DIRECTORY") {
++i;
if (i == args.end()) {
status.SetError(
"DIRECTORY argument provided without subsequent arguments");
return false;
}
std::string sd = cmSystemTools::CollapseFullPath(
*i, status.GetMakefile().GetCurrentSourceDirectory());
// lookup the makefile from the directory name
dir = status.GetMakefile().GetGlobalGenerator()->FindMakefile(sd);
if (!dir) {
status.SetError(
"DIRECTORY argument provided but requested directory not found. "
"This could be because the directory argument was invalid or, "
"it is valid but has not been processed yet.");
return false;
}
++i;
if (i == args.end()) {
status.SetError("called with incorrect number of arguments");
return false;
}
}
// OK, now we have the directory to process, we just get the requested
// information out of it
if (*i == "DEFINITION") {
++i;
if (i == args.end()) {
status.SetError("A request for a variable definition was made without "
"providing the name of the variable to get.");
return false;
}
std::string const& output = dir->GetSafeDefinition(*i);
status.GetMakefile().AddDefinition(variable, output);
return true;
}
if (i->empty()) {
status.SetError("given empty string for the property name to get");
return false;
}
if (*i == "DEFINITIONS") {
switch (status.GetMakefile().GetPolicyStatus(cmPolicies::CMP0059)) {
case cmPolicies::WARN:
status.GetMakefile().IssueMessage(
MessageType::AUTHOR_WARNING,
cmPolicies::GetPolicyWarning(cmPolicies::CMP0059));
CM_FALLTHROUGH;
case cmPolicies::OLD:
StoreResult(status.GetMakefile(), variable,
status.GetMakefile().GetDefineFlagsCMP0059());
return true;
case cmPolicies::NEW:
case cmPolicies::REQUIRED_ALWAYS:
case cmPolicies::REQUIRED_IF_USED:
break;
}
}
StoreResult(status.GetMakefile(), variable, dir->GetProperty(*i));
return true;
}
namespace {
void StoreResult(cmMakefile& makefile, std::string const& variable,
const char* prop)
{
makefile.AddDefinition(variable, prop ? prop : "");
}
void StoreResult(cmMakefile& makefile, std::string const& variable,
cmValue prop)
{
makefile.AddDefinition(variable, prop);
}
}