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8af64914d6
Add the support of CACHE{variable} syntax to enable:
* better consistency with other commands which use this syntax
* more flexibility regarding cache variable options
58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file LICENSE.rst or https://cmake.org/licensing for details. */
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#include "cmUnsetCommand.h"
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#include "cmExecutionStatus.h"
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#include "cmMakefile.h"
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#include "cmStringAlgorithms.h"
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#include "cmSystemTools.h"
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// cmUnsetCommand
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bool cmUnsetCommand(std::vector<std::string> const& args,
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cmExecutionStatus& status)
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{
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if (args.empty() || args.size() > 2) {
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status.SetError("called with incorrect number of arguments");
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return false;
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}
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auto const& variable = args[0];
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// unset(ENV{VAR})
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if (cmHasLiteralPrefix(variable, "ENV{") && variable.size() > 5) {
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// what is the variable name
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auto const& envVarName = variable.substr(4, variable.size() - 5);
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#ifndef CMAKE_BOOTSTRAP
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cmSystemTools::UnsetEnv(envVarName.c_str());
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#endif
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return true;
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}
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// unset(CACHE{VAR})
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if (cmHasLiteralPrefix(variable, "CACHE{") && variable.size() > 7 &&
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cmHasLiteralSuffix(variable, "}")) {
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// get the variable name
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auto const& varName = variable.substr(6, variable.size() - 7);
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status.GetMakefile().RemoveCacheDefinition(varName);
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return true;
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}
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// unset(VAR)
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if (args.size() == 1) {
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status.GetMakefile().RemoveDefinition(variable);
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return true;
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}
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// unset(VAR CACHE)
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if ((args.size() == 2) && (args[1] == "CACHE")) {
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status.GetMakefile().RemoveCacheDefinition(variable);
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return true;
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}
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// unset(VAR PARENT_SCOPE)
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if ((args.size() == 2) && (args[1] == "PARENT_SCOPE")) {
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status.GetMakefile().RaiseScope(variable, nullptr);
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return true;
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}
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// ERROR: second argument isn't CACHE or PARENT_SCOPE
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status.SetError("called with an invalid second argument");
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return false;
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}
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