blob: cfaa1fd27c7233497e59fce6b1eb2defd5b357c8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmUnsetCommand.h"
#include "cmAlgorithms.h"
#include "cmMakefile.h"
#include "cmSystemTools.h"
class cmExecutionStatus;
// cmUnsetCommand
bool cmUnsetCommand::InitialPass(std::vector<std::string> const& args,
cmExecutionStatus&)
{
if (args.empty() || args.size() > 2) {
this->SetError("called with incorrect number of arguments");
return false;
}
auto const& variable = args[0];
// unset(ENV{VAR})
if (cmHasLiteralPrefix(variable, "ENV{") && variable.size() > 5) {
// what is the variable name
auto const& envVarName = variable.substr(4, variable.size() - 5);
#ifdef CMAKE_BUILD_WITH_CMAKE
cmSystemTools::UnsetEnv(envVarName.c_str());
#endif
return true;
}
// unset(VAR)
if (args.size() == 1) {
this->Makefile->RemoveDefinition(variable);
return true;
}
// unset(VAR CACHE)
if ((args.size() == 2) && (args[1] == "CACHE")) {
this->Makefile->RemoveCacheDefinition(variable);
return true;
}
// unset(VAR PARENT_SCOPE)
if ((args.size() == 2) && (args[1] == "PARENT_SCOPE")) {
this->Makefile->RaiseScope(variable, nullptr);
return true;
}
// ERROR: second argument isn't CACHE or PARENT_SCOPE
this->SetError("called with an invalid second argument");
return false;
}
|
